Stereo Chemistry

The new podcast Inflection Point leans on C&EN's 100-year archive to trace headline topics in science today back to their disparate and surprising roots. In each episode, we explore three lesser-known moments in science history that ultimately led us to current-day breakthroughs. With help from expert C&EN reporters, this new show examines how discoveries from our past have shaped our present and will change our future. In our first episode, hosts David Anderson and Gina Vitale travel back in time to relive three events that ultimately led to the development of green hydrogen. They also bring in C&EN reporter Craig Bettenhausen to analyze how this emerging technology could shape our future. Subscribe to Inflection Point now on Apple Podcasts, Spotify, or wherever you get your podcasts. A transcript of this episode can be found here.

The COVID-19 pandemic put the importance of indoor air quality in stark relief. The air in schools was of particular concern, and that concern spurred collaboration between researchers and school staff to find interventions to improve air quality to safeguard the health of students and staff. Data from indoor air monitors revealed that filter-based portable air cleaners were effective at removing airborne particulates. Ongoing research and monitoring will determine whether this effort is making a beneficial health impact and will be used to decide how to manage indoor air quality going forward. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out the full story about air quality monitoring in schools at cenm.ag/airqualityinschools.   Cover photo: Undergraduate student Ricardo Reyes collects air quality measurements from the back of a classroom in Colorado.   Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts.   A transcript of this episode will be available soon at cen.acs.org.   Credits Executive producer: David Anderson C&EN Uncovered host: Craig Bettenhausen Reporter: Fionna Samuels Audio editor: Ted Woods Copyeditor: Brian Vickers Episode artwork: Glenn Asakawa/University of Colorado Boulder Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

On Oct. 9, the 2024 Nobel Prize for Chemistry was awarded to David Baker, Demis Hassabis, and John M. Jumper for their work in prediction and design of protein structures. C&EN's executive editor for life sciences, Laura Howes, joins a special episode of Stereo Chemistry to discuss why the trio won, the significance of their work around proteins, and how she accurately predicted the win in C&EN's annual “Who Will Win?” webinar. Stereo Chemistry offers a deeper look at subjects from recent stories pulled from the pages of Chemical & Engineering News. Check out Laura's story on how these computational chemists won this year's Nobel Prize in Chemistry at cenm.ag/chemnobel2024.  

In the 20th century, corporate powerhouses like Bell Labs and DuPont Central Research funded R&D from their balance sheets, creating a clear path for postdoctoral scientists to innovate beyond their university research. In 2024, with the decay of corporate laboratories, graduates are taking the commercial start-up route more and more. C&EN, business reporter Matt Blois discusses several such start-ups, exploring how the founders are making the transition from PhD to CEO and mapping the various routes they've taken to secure funding to continue their research. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Matt's story on how PhDs are learning to become CEOs at cenm.ag/chementrepreneurs Cover photo: Laura Stoy inside a laboratory at Rivalia Chemical Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts. A transcript of this episode is available at cen.acs.org.   Credits Executive producer: David Anderson C&EN Uncovered host: Craig Bettenhausen Reporter: Matt Blois Audio editor: Ted Woods Copyeditor: Bran Vickers Episode artwork: Jim Prisching Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

On average, from 2011 to 2021, academic labs generated around 4,300 metric tons of hazardous waste each year. One of the largest lab-used solvents discarded is dichloromethane and more than half of that waste ends up burned. In today's episode, policy reporters Krystal Vasquez and Leigh Krietsch Boerner dive into the processes academic labs use to dispose of said waste, the consequences of new EPA regulations around dichloromethane, and what solutions academic institutions are coming up with to accommodate these new rules. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Krystal's story on the new U.S. Environmental Protection Agency regulations regarding dichloromethane at https://cenm.ag/dcmregs and check out Leigh's story about solvent waste disposal in academic laboratories at https://cenm.ag/wastedisposal. Cover photo: Lab solvents C&EN July 15th cover photo Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer(s): Gina Vitale, David Anderson C&EN Uncovered host: Craig Bettenhausen Reporter(s): Krystal Vasquez, Leigh Krietsch Boerner Audio editor: Ted Woods Copyeditor: Bran Vickers Episode artwork: Will Ludwig Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org

Tragedies in the communities of Flint, Michigan, and East Palestine, Ohio, continue to affect residents 10 years and 1 year on, respectively, from the initial events. Residents of both cities continue to rebound and rebuild despite ongoing issues revolving around the toxic chemicals that were introduced to their towns through human decisions. C&EN physical sciences reporter Priyanka Runwal traveled to both Flint and East Palestine to speak with residents about how they are recovering, how the actions of their representatives have fallen short, and their hopes to return to something of a “normal” existence in the future. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Priyanka's cover story on Flint after 10 years at cenm.ag/flint; Check out Priyanka's cover story on East Palestine at cenm.ag/eastpalestine   Cover photo: Residents of Flint, Michigan, march arm in arm as they demand justice and accountability for their community 10 years from the beginning of the water crisis. Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts.    A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Reporter: Priyanka Runwal Audio editor: Ted Woods Copyeditor: Bran Vickers Story editor: Laura Howes Episode artwork: Brittany Greeson Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

Per- and polyfluoroalkyl substances, a class of chemicals known as PFAS, are often called “forever chemicals” because of how long they persist in the environment. They are prevalent in drinking water and have been linked to negative health outcomes. A slew of cleantech start-ups are cropping up with the aim of breaking down and destroying PFAS molecules. In this episode of C&EN Uncovered, reporter Britt Erickson explores the technologies behind these companies and the competition among them. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Britt's cover story on the destruction techniques for these “forever chemicals” at cenm.ag/foreverchemicals. Cover photo: Argon gas plasma, which can break down PFAS, on the surface of liquid water Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts.   A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Reporter: Britt Erickson Audio editor: Ted Woods Copyeditor: Bran Vickers Story editor: Michael McCoy Episode artwork: Courtesy of Selma Mededovic Thagard/Clarkson University Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

As the science of drug discovery has grown in scale and gotten more complicated, so have the drug molecules themselves. But there's a promising class of drugs made of just a handful of atoms that punch above their weight by leveraging the natural chemistry of the cell. Recent discoveries have opened up a new era of pharmaceutical chemistry that some people are calling a golden age. In this episode of C&EN Uncovered, reporter Laura Howes explains this exciting field of research and its implications for the drugs of the future. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Laura's cover story on small-molecule drugs at cenm.ag/smallmol. Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Reporter: Laura Howes Audio editor: Brian Gutierrez Copyeditor: Bran Vickers Story editor: Mitch Jacoby Episode artwork: Chris Gash Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

Resting on the bottom of the ocean are potato-sized nodules of valuable minerals that are more or less up for grabs. Multiple corporations and some nations are racing to build deep-sea drones that can withstand the extreme conditions at the seafloor and bring these 1-20 cm nodules to eager buyers on the surface.   Many of the metals in these nodules are critical for green technologies like batteries. But these nodules are also an important part of ecosystems we are just beginning to understand. In this episode, C&EN reporter Priyanka Runwal chats with host Craig Bettenhausen about this complex issue.   C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out Runwal's full story at cenm.ag/seafloormine.   For more about mining the oceans, check out this episode of Stereo Chemistry from earlier this year about filtering minerals directly out of the water: cenm.ag/ocean    Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts.    A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Reporter: Priyanka Runwal Audio editor: Brian Gutierrez Copyeditor: Bran Vickers Story editor: Laura Howes Episode artwork: Diva Amon/Craig Smith/University of Hawaii Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.

The Nobel Prize announcements are big events at Chemical & Engineering News. But we find out the winners at the same time as everyone else.    Then, the race is on for our reporters.    This year, staffers Laurel Oldach and Mitch Jacoby took on the task of covering the science prizes. In this episode, they reflect on this year's winning research in chemistry and medicine and share what it's like covering the most prestigious prizes in science.   C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Check out our reporting on the 2023 Nobel Prizes at https://cen.acs.org/magazine/101/10133.html.   Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts.    A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale Host: Gina Vitale Reporters: Mitch Jacoby and Laura Oldach Audio editor: Brian Gutierrez Copyeditor: Bran Vickers Story editor: Chris Gorski Episode artwork: Milad Abolhasani/NCSU Music: “Hot Chocolate,” by Aves Contact Stereo Chemistry: Contact us on social media at @cenmag or email cenfeedback@acs.org.  

The first issue of C&EN was published in 1923 with the stated purpose of “the promotion of research, the development of the chemical industry, and the welfare of the chemist.”  The world of chemistry has grown a lot since then, and the magazine has been there to report on it all. To celebrate our 100th anniversary, C&EN reporter and informal historian Alex Tullo has sifted through thousands of issues of the magazine, and in this episode, he guides our host Craig Bettenhausen on a tour through the magazine's history from the industrialization of plastics, to the environmental movement, to the modern era of digital publication.  When this episode was recorded, Tullo was preparing the From the Archives feature for the 1980s, which is now published. C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent stories. Read Alex's entire series about the C&EN archives at cenm.ag/fromthearchives. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Reporter: Alex Tullo Audio editor: Brian Gutierrez Copyeditor: Bran Vickers Story editor: Manny I. Fox Morone Episode artwork: Shutterstock/Kay Youn/Will Ludwig/C&EN Music: “Hot Chocolate” by Aves Contact Stereo Chemistry: Contact us on social media @cenmag or email cenfeedback@acs.org.  

Early-career scientists are increasingly gravitating toward science policy, but the transition from the research bench to the policy office can be a tricky one. What can that path look like, and how can chemistry knowledge translate into a successful science policy career? In this bonus episode of C&EN's Bonding Time, Mark Feuer DiTusa sits down with recent science PhD graduates and science policy professionals Jennifer DiStefano and Jared Mondschein to hear about their intertwined journeys, what science policy looks like for them, and how they think policy is shaping the direction of chemistry in the US. You can find the episode where we spoke with six chemists about their yearlong science policy fellowships in Washington, DC, at http://cenm.ag/lessons. You can connect with Jennifer DiStefano and Jared Mondschein at their LinkedIn pages. A transcript of this episode will be available soon at cen.acs.org.   [Include CTA info/links from episode promo here, if relevant.]   Credits Executive producer: Gina Vitale Writer: Mark Feuer DiTusa Audio editor: Mark Feuer DiTusa, Brian Gutierrez Story editor: Ariana Remmel Copyeditor: Sabrina Ashwell, Michael McCoy Show logo design: William A. Ludwig Episode artwork: William A. Ludwig Music (in order of appearance): “The Beat Detector” by Novembers, "Sugar Cubes" by Avner Kelmer Contact Stereo Chemistry: Tweet at us at @cenmag or email cenfeedback@acs.org.  

Hydrogen might be the key to a clean energy future, but only if it can be made without fossil fuels. Most hydrogen today is made from methane.   With generous government tax credits and enthusiasm for sustainable technology, the race is on for green hydrogen.   Craig Bettenhausen, our usual host, guides C&EN associate editor Gina Vitale through the hydrogen rainbow and how the periodic table's number 1 element could become the number 1 fuel.   C&EN Uncovered, a new project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent cover stories. Read Bettenhausen's July 3, 2023, cover story about hydrogen electrolyzers at cenm.ag/hydrolyzers.   A transcript of this episode will be available soon at cen.acs.org.   Credits   Executive producer: Gina Vitale Host: Gina Vitale Cover story reporter: Craig Bettenhausen Audio editor: Brian Gutierrez Story editor: Michael McCoy Copyeditor: Sabrina Ashwell Show logo design: William A. Ludwig Episode artwork: Nel Music: “Hot Chocolate” by Aves   Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.  

The modern world runs on electronic devices and energy systems that are powered by valuable elements such as lithium and uranium. There are a limited number of terrestrial mines that produce energy-critical elements, which makes the supply of these materials prone to disruption. So researchers are looking to an unconventional source: seawater. Almost every element on the periodic table can be found in global oceans–but most are dissolved in ultralow concentrations. In this episode of Stereo Chemistry, we'll hear from scientists in the United States and European Union about why they're interested in extracting metals and minerals from seawater and how they're using chemistry to do it. A transcript of this episode will be available soon at cen.acs.org. Download the Chemistry News by C&EN mobile app for iOS and Android.  Learn more about lithium mining from our September 2022 episode. Credits Producers: Ariana Remmel, Kerri JansenWriter: Mitch JacobyAudio editor: Mark Feuer DiTusaStory editors: Gina Vitale, Craig BettenhausenCopyeditor: Sabrina AshwellShow logo design: William A. LudwigEpisode artwork: Shutterstock/C&EN StaffMusic (in order of appearance): “Daydream” by Ikoliks, “Distance” by Daniel BrownSound effects (in order of appearance): “Small waves, rocks and beach” from BigSoundBank.com Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Be they powered by fossil fuels, batteries, or hydrogen, cars are here to stay. So what can be done to make tires greener? In this episode of Stereo Chemistry, C&EN reporters Alex Scott and Craig Bettenhausen look at where the rubber meets the road, literally. Scott examined efforts to make tires more sustainable in a recent cover story for C&EN. He found people working on the movement and fate of tiny specks of tire-and-asphalt dust in the environment as well as large-scale efforts to shift to biobased and recycled raw materials when making new tires.   C&EN Uncovered, a project from C&EN's podcast, Stereo Chemistry, offers another look at subjects from recent cover stories. Read Scott's May 29th, 2023, cover story about how the tire industry is pushing to become more sustainable at https://bit.ly/42MMseA. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Cover story reporter: Alex Scott Audio editor: Mark Feuer DiTusa Story editor: Michael McCoy, Ariana Remmel, Laura Howes Copyeditor: Sabrina Ashwell Show logo design: William A. Ludwig Episode artwork: Pyrum Innovations Music: “Hot Chocolate” by Aves Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

When two wastewater treatment facilities in Baltimore, Maryland, broke down in early 2021, the surrounding waterways began filling up with sewage. In this episode of Stereo Chemistry, C&EN business reporter Craig Bettenhausen takes the pod to visit the Back River Plant and Patapsco Plant in the Chesapeake Bay watershed to demystify how these facilities treat wastewater and take a deep dive into the chemistry behind enhanced nutrient removal systems. Chemical engineers, environmental advocates, and infrastructure experts explore what happens to aquatic ecosystems when wastewater treatment systems fail–and share their perspectives on reimagining wastewater as a chemical treasure trove in the future. Listen to our bonus episode with Kerri Jansen here: cenm.ag/jansen-podcast A transcript of this episode is available at https://cenm.ag/treatment. Credits Producers: Ariana Remmel, Kerri Jansen; Writer: Craig Bettenhausen; Audio editor: Mark Feuer DiTusa; Story editors: Ariana Remmel, Gina Vitale, Chris Gorski, Mike McCoy; Copyeditor: Sydney Smith; Show logo design: William A. Ludwig; Episode artwork: Craig Bettenhausen; Music (in order of appearance): "Refuge" by Walz, "Lunch Time" by Avner Kelmer

Stereo Chemistry's longtime host Kerri Jansen is stepping down from her role as executive producer of the podcast. Jansen has been with Stereo Chemistry since it began in 2018, and has played an integral role in the production of C&EN's flagship podcast. In this bonus episode, Jansen talks with C&EN's interim coeditors for audio & video, Ariana Remmel and Gina Vitale, about some of her favorite episodes from the Stereo Chemistry archives. Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you listen to podcasts. A transcript of this episode is now available at https://cenm.ag/jansen-podcast. Listen to some of Kerri's favorite Stereo Chemistry episodes: How helium shortages have changed science Lithium mining's water use sparks bitter conflicts and novel chemistry Nobel laureates Frances Arnold and Jennifer Doudna on prizes, pandemics, and Jimmy Page A world without Rosalind Franklin Why chemists are excited by exascale computing There's more to James Harris's story Credits Producers/hosts: Ariana Remmel, Gina Vitale; Audio editor: Ariana Remmel, Mark Feuer DiTusa; Story editor: Michael McCoy, Krystal Vasquez; Copyeditor: Brianna Barbu; Logo design: William A. Ludwig; Episode artwork: Shutterstock/C&EN Staff; Music (in order of appearance): “Deer Dance” by Ian Post, “Hot Chocolate” by Aves, and “Sunbeam” by EFGR. Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Carbon capture and sequestration is the trapping of CO2 emitted by industrial processes and depositing it beneath the Earth's surface. Spurred on by tax credits offered by recent federal legislation, companies are racing to implement the technology in geologically suitable locations such as in Louisiana.However, the community around Lake Maurepas, Louisiana, has resisted efforts by Air Products to greenlight such a project under the lake. In this episode, C&EN reporters Craig Bettenhausen and Rick Mullin discuss the fears of the community around the implementation of carbon capture and sequestration around Lake Maurepas and the response from Air Products.C&EN Uncovered, a new project from C&EN's podcast, Stereo Chemistry, offers another look at subjects from recent cover stories. Read Mullin's April 2nd, 2023, cover story about carbon capture and sequestration around Lake Maurepas at https://bit.ly/3W4lbCE. A transcript of this episode will be available soon at cen.acs.org.   Credits Executive producer: Gina Vitale C&EN Uncovered host: Craig Bettenhausen Cover story reporter: Rick Mullin Audio editor: Mark Feuer DiTusa Story editor: Michael McCoy, Ariana Remmel Copyeditor: Michele Arboit Show logo design: William A. Ludwig Episode artwork: Julie Dermansky Music: “Hot Chocolate” by Aves Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org. UPDATE The episode description was updated on May 18, 2023, to include words that were accidentally omitted in the sentence about geologically suitable locations. The example location of Louisiana was originally missing.

Lithium iron phosphate (LFP) batteries are cheaper, safer, and longer lasting than batteries made with nickel- and cobalt-based cathodes. In China, the streets are full of electric vehicles using this technology. But LFP never caught on as a chemistry for electric vehicle batteries in North America. In this episode, C&EN reporters Craig Bettenhausen and Matt Blois talk about the promise and risks of bringing lithium iron phosphate to a North American market. C&EN Uncovered, a new project from C&EN's podcast, Stereo Chemistry, offers another look at subjects from recent cover stories. Read Blois's Jan. 30, 2023, cover story about lithium iron phosphate at http://bit.ly/3nbMkpK. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Kerri Jansen C&EN Uncovered host: Craig Bettenhausen Cover story reporter: Matt Blois Audio editor: Mark Feuer DiTusa Story editor: Michael McCoy Copyeditor: Sabrina Ashwell Show logo design: William A. Ludwig Episode artwork: David Girai Photography Music: “Hot Chocolate” by Aves   Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Researchers reported finding microplastics in drinking water nearly 5 years ago, prompting California lawmakers to require monitoring of the state's drinking water for the tiny particles. But in 2018, there were no standard methods for analyzing microplastics. So California regulators reached out to chemists and toxicologists from all sectors to develop those methods. They also sought assistance in developing a health-based limit to help consumers understand what the monitoring results mean for their health. In this episode of Stereo Chemistry, we will hear from some of the scientists leading those groundbreaking efforts.   A transcript of this episode is available at https://bit.ly/41g6uPa.   Credits Executive producer/host: Kerri Jansen Writer: Britt Erickson Audio editor: Mark Feuer DiTusa Story editors: Jyllian Kemsley, Michael McCoy, Ariana Remmel Audience editor: Dorea I. Reeser Copyeditor: Sabrina Ashwell, Heather Holt Logo design: William A. Ludwig Episode artwork: Shutterstock Music (in order of appearance): “The Process” by Kevin Graham, “Goodness Gracious” by Louis Adrien   Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

At Oak Ridge National Laboratory, a supercomputer named Frontier has broken the exascale computing barrier, meaning it can calculate more than a million trillion floating-point operations per second. In this episode, C&EN reporters Craig Bettenhausen and Ariana Remmel discuss how Frontier works and what that kind of power could mean for computational chemistry.C&EN Uncovered, a new project from C&EN's podcast, Stereo Chemistry, offers a deeper look at subjects from recent cover stories. Read Remmel's Sept. 5, 2022, cover story about exascale computing at https://bit.ly/3RkPjr6.   A transcript of this episode is available at https://bit.ly/3HNK1S0. Credits Stereo Chemistry executive producer: Kerri Jansen C&EN Uncovered host: Craig Bettenhausen Audio editor: Mark Feuer DiTusa Copyeditor: Sabrina J. Ashwell Additional review: Dorea Reeser, Manny I. Fox Morone, Michael Torrice Episode artwork: Matt Chinworth Music: "Hot Chocolate" by Aves Contact Stereo Chemistry: Tweet at us at @cenmag or email cenfeedback@acs.org.

In this bonus episode of C&EN's Bonding Time, we hear from 2022 chemistry Nobel laureates Carolyn Bertozzi and K. Barry Sharpless, who shared the prize along with Morten Meldal for their work on click chemistry and bioorthogonal chemistry. After a November symposium honoring the US-based Nobel awardees at the Embassy of Sweden in Washington, DC, the two chemists discussed their long history of collaboration, how winning the 2022 Nobel Prize in Chemistry has changed their lives, and how they hope to use the spotlight to break down barriers within science. A transcript of this episode will be available shortly at cen.acs.org. To learn even more about this year's Nobel-winning science, listen to our October bonus episode about the prize at bit.ly/3iJ1iSc. Credits Executive producer/host: Kerri Jansen Writer: Gina Vitale Audio editor: Mark Feuer DiTusa Story editor: Michael Torrice Copyeditor: Sabrina Ashwell Logo design: William A. Ludwig Episode artwork: Laura Morton (Bertozzi); Sandy Huffaker (Sharpless)/C&EN Music: “Street Dreams” by Julian Hartwell Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

The 2022 Nobel Prize in Chemistry was awarded to Carolyn Bertozzi, Morten Meldal and K. Barry Sharpless for their development of click and bioorthogonal chemistry which are used by chemists around the world to track biological processes and produce pharmaceuticals. In this special episode of Stereo Chemistry, hosts Gina Vitale and Ariana Remmel delve into the science behind the prize and talk with organic chemist Antoni Riera to discuss the applications of the award-winning chemistry. C&EN contributor Mark Peplow also joins the Stereo Chemistry crew to talk about his conversation with Nobel Laureate Carolyn Bertozzi. Read more about this award-winning science in Mark Peplow's article about the 2022 Nobel Prize in Chemistry: https://cen.acs.org/people/nobel-prize/Click-and-biorthogonal-chemistry-win-2022-Nobel-Prize-in-Chemistry/100/web/2022/10  Credits Executive producer/host: Kerri Jansen Writer: Ariana Remmel, Gina Vitale Audio editor: Mark Feuer DiTusa Story editors: Jessica Marshall Production assistance: Mark Peplow, Krystal Vasquez Audience editor: Dorea I. Reeser Copyeditor: Heather Holt Logo design: William A. Ludwig Episode artwork: Laura Morton (Bertozzi), University of Copenhagen (Meldal), Sandy Huffaker (Sharpless) Press conference recordings: Courtesy of ©The Nobel Foundation Music: “Rising Tide” by C.K. Martin.   Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Replacing gas cars with electric ones is a main pillar of plans to fight climate change. But the lithium-ion batteries used in electric cars come with a cost. Communities near the Salar de Atacama in Chile, where about a quarter of the world's lithium is extracted from salty aquifers, say mining companies pose a serious threat to the local environment and their access to water. Mining companies strongly dispute those claims. In this episode of Stereo Chemistry, we'll explore the environmental factors at play in the salar and the differing perspectives on how best to measure impact. And we'll hear from a new group of mining start-ups that claim they can use chemical methods—as yet unproven—to extract lithium without the same impact on water.  This is the first episode in a new series exploring the future of water. A transcript of this episode, along with English translations of all Spanish dialogue, is available at bit.ly/3QGlQpu. Sign up for C&EN's email series “Advancing in the Art of Science Communication” at bit.ly/scicommadvanced. Credits Executive producer/host: Kerri Jansen Writer: Matt Blois Audio editor: Mark Feuer DiTusa Story editors: Michael McCoy, Manny I. Fox Morone, Ariana Remmel Sensitivity editor: Sofía Jarrín Audience editor: Dorea I. Reeser Copyeditor: Heather Holt Translator: Fernando Gomollón Bel, Juan José Sáenz de la Torre Logo design: William A. Ludwig Episode artwork: SQM Music (in order of appearance): "Tinker Toys" by Colton Dewberry, "Pebbles Dance" by Roie Shpigler, "Earth & Heavens" by Sémø and Ian Post, "Street Dreams" by Julian Hartwell, "There's No One Else Just Like Me" by Shahar Guttman, "Eternal Sunshine" by Stanley Gurvich Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Famed lithium-ion-battery pioneer and Nobel Prize–winner John Goodenough has achieved yet another milestone—a century on Earth. Goodenough celebrates his 100th birthday on July 25, 2022. In honor of the occasion, Stereo Chemistry host Kerri Jansen and C&EN reporter Mitch Jacoby revisit their 2019 interview with the renowned scientist, recorded at his office at the University of Texas at Austin just prior to his Nobel win. In the expansive and candid conversation, Goodenough tells Stereo Chemistry about childhood adventures, infernal exams with Enrico Fermi, and his path to the innovation that enabled an electronics revolution. A transcript of this episode is available at bit.ly/3otFrh3. Music credit: “Happy Birthday To You (Orchestral)” by beanstalkaudio/Pond5.com Image credit: Mitch Jacoby/Robert Bryson/C&EN/Milano M/Shutterstock

This month, Stereo Chemistry is sharing an episode of the podcast ChemConvos featuring an interview with materials scientist, self-described “Raman spectroscopy enthusiast,” and prolific Wikipedia editor Jess Wade. On ChemConvos, hosts Henry Powell-Davies and Medina Afandiyeva seek to uncover the story behind the scientist. In this episode, the trio discusses not only Jess's work as a research fellow at Imperial College London but also how she manages burnout and the importance of a supportive lab culture. And, of course, they dig into the origins of her Wikipedia project, which has resulted in Wade creating more than 1,400 biographies on Wikipedia aiming to highlight women, people of color, and LGBTQ+ scientists and engineers. Follow ChemConvos on Twitter at @ChemConvosPod. Find new episodes at anchor.fm/chemconvospod or on your favorite podcast platform. A transcript of this episode is available at bit.ly/3yb4lb8. Image credit: Courtesy of ChemConvos/C&EN

Our bodies need sugar to survive. But most of us consume way more than we actually need, and many foods and beverages pack a dose of added sweeteners. So why are we eating all of this extra sugar? This month, Stereo Chemistry is sharing an episode of the podcast Tiny Matters that examines that question. In the episode, hosts Sam Jones and Deboki Chakravarti explore sugar's impact on our bodies and trace how a genetic mutation that helped our distant ancestors survive is influencing our health today. And they dig into the debate around whether sugar can fairly be called addictive. Note: This episode contains discussion of addiction and eating disorders. Listen to Tiny Matters on the American Chemical Society's website at https://www.acs.org/content/acs/en/pressroom/tiny-matters.html or on your favorite podcast platform. ACS also publishes Chemical & Engineering News, which is the independent news outlet that powers Stereo Chemistry.  More on sugar from C&EN: The sugar wars are about to change your food label. Here's why.https://cen.acs.org/business/specialty-chemicals/sugar-wars-change-food-label/97/i41 The case against sugar https://cen.acs.org/articles/92/i31/Case-Against-Sugar.html  Image credit: Courtesy of Tiny Matters/C&EN

Chemists may know James Harris as the first Black scientist to be credited with codiscovering an element. In fact, we referenced this in a previous episode of Stereo Chemistry about making superheavy elements. But beyond this memorable factoid, details about the accomplished nuclear chemist are scarce, and most sources repeat the same superficial information. Kristen Frederick-Frost, curator of modern science at the Smithsonian's National Museum of American History, wants to change that. After discovering that the museum's database lacked material on Harris, she scoured archival records and sought out former colleagues, friends, and family members to fill in details of his life and career. In this bonus episode of Stereo Chemistry, host Kerri Jansen and special guest Dr. Darryl Boyd join Frederick-Frost to explore James Harris's story beyond the discoveries that made him famous. And we even get an unexpected peek into his lab, courtesy of the US National Archives. Boyd, a polymer chemist, previously researched James Harris while writing a short article for C&EN's “Black Chemists You Should Know About.” A transcript of this episode is available at bit.ly/37P0qpY. Image credit: Steve Gerber/Lawrence Berkeley National Laboratory  © 2010 The Regents of the University of California, through the Lawrence Berkeley National Laboratory Music credit: "Just Enough for a Heartbeat" by Roy Young Contact Stereo Chemistry by emailing cenfeedback@acs.org.

Helium shortages can derail research and threaten expensive instruments that depend on the gas to operate safely. In late 2020, analysts predicted—and we reported—that pressures on the global helium market were likely to ease as new production capacity came online. Today, helium users are again facing price spikes and limited supplies, driven by a variety of factors including political instability in Europe and technical malfunctions at key suppliers. In this bonus episode of Stereo Chemistry, C&EN industrial gas reporter Craig Bettenhausen explains how we ended up here again and how the outlook for the global helium market has evolved. A transcript of this episode is available at bit.ly/3tBSGzF. For more background about where helium comes from, why it's so important to science, and what happens when you can't get enough of it, check out our October 2020 podcast episode, How helium shortages have changed science. Image credit: Boris Steinberg, Johns Hopkins Chemistry Music credit:  “How Did I Get Here” by Sean Solo Contact Stereo Chemistry by emailing cenfeedback@acs.org.

Being a chemistry professor is a juggling act. But sometimes professors have too many balls in the air. How do they know which ones to grab and which to let drop? In this episode of Stereo Chemistry, C&EN's Leigh Krietsch Boerner sits down with organic chemists Sarah Reisman and Melanie Sanford to hear how they decide what projects to work on, what sparks joy for them in the lab, and what being an organic chemist really means to them. A transcript of this episode will be available soon at cen.acs.org. Sign up for C&EN's Selling Your Science: The Art of Science Communication at cenm.ag/sciencecommunication. Contact Stereo Chemistry by emailing cenfeedback@acs.org. Image credit: Will Ludwig/C&EN/Lance Hayashida/University of Michigan

Imagine you're an atmospheric chemist. There's a pandemic. And public health officials release information about how the virus spreads from one person to another—information that directly contradicts your knowledge of how tiny particles move in the air. What do you do? In this episode of Stereo Chemistry, Jose-Luis Jimenez and Kimberly Prather talk to C&EN editor Jyllian Kemsley about how they've handled that situation over the past 2 years. They share their frustrations with public health officials along with the heartbreak and rewards of communicating science with the general public, and what they plan to take from their experiences as they think about their research going forward. A transcript of this episode will be available soon at cen.acs.org. Sign up for C&EN's Selling Your Science: The Art of Science Communication at cenm.ag/sciencecommunication. Image credit: Will Ludwig/C&EN/Mariana Pereira (Jimenez)/Erik Jepsen/University of California San Diego (Prather)

How do we build water systems that are sustainable and also equitable? On this episode of Stereo Chemistry, Jessica Ray and William Tarpeh talk with C&EN reporter Katherine Bourzac about how they use their chemical engineering know-how to develop simple systems for filtering toxic chemicals from our water and harvesting useful chemicals from urine. They also discuss finding ways to thrive as assistant professors and building support networks as Black junior faculty. A transcript of this episode is available at https://bit.ly/3pggyGU. Sign up for C&EN's weekly newsletter at bit.ly/chemnewsletter. Contact us: cenfeedback@acs.org Image credit: Will Ludwig/C&EN/University of Washington/Courtesy of William Tarpeh  

What motivates a creative scientific mind? How does an accomplished scientist pinpoint new subjects to explore? How is the field of chemical biology evolving? In this episode of Stereo Chemistry, we probe those questions with scientists and serial entrepreneurs David Liu and Stuart Schreiber, both pioneers in developing tools that use chemistry to explore biology. A transcript of this episode and links to past C&EN coverage of David Liu and Stuart Schreiber will be available soon at cen.acs.org. Read Stuart Schreiber's Harvard Magazine article about discovering his family's secrets at https://www.harvardmagazine.com/2019/07/dna-testing-schreiber Sign up for C&EN's weekly newsletter at bit.ly/chemnewsletter. Image credit: Will Ludwig/C&EN/Beam Therapeutics/Stuart Schreiber

Stereo Chemistry's new season will launch on Nov. 23, featuring eight chemistry greats in conversation with . . . each other. In each episode, two sensational chemists will pair up for in-depth conversations moderated by a C&EN reporter. Listen now as show host Kerri Jansen reveals the lineup with new Stereo Chemistry team member Attabey Rodríguez Benítez. Image credit: C&EN/Shutterstock

The 2021 Nobel Prize in Chemistry went to Benjamin List and David W. C. MacMillan for their development of asymmetric organocatalysis, which has proved to be a powerful tool for building molecules. In this special episode of Stereo Chemistry, host Kerri Jansen, C&EN reporter Leigh Krietsch Boerner, and C&EN editorial fellow Emily Harwitz delve into the science behind the prize. Merck's Rebecca Ruck also joins the Stereo Chemistry crew to weigh in on how organocatalysis has impacted drug development. An edited transcript of this episode will be available soon on cen.acs.org. Read more about the 2021 Nobel Prize in Chemistry in Leigh Krietsch Boerner's article on the prize at bit.ly/3iD0hs2. Image credit: © Frank Vinken (List); Princeton University, Department of Chemistry, © Todd Reichart (MacMillan)

This month, Stereo Chemistry is sharing an episode of Third Pod from the Sun, a podcast from the American Geophysical Union, featuring an interview with retired astronaut and former professional athlete Leland Melvin. In the episode, Melvin describes how an early⁠—and explosive⁠—interest in chemistry grew into a scientific career at NASA and two missions to the International Space Station. Find more stories from Third Pod from the Sun at thirdpodfromthesun.com, Apple podcasts, and wherever you get podcasts. Image credit: Courtesy of Third Pod from the Sun/C&EN

This month, Stereo Chemistry is sharing an episode of Orbitals that features an interview with forensic chemist Shari Forbes, an expert in human decomposition who studies the odors of decomposition at a body farm in chilly Quebec. Research at body farms—research facilities dedicated to studying what happens to human bodies after death—supplies law enforcement with valuable information about the process of decomposition in various scenarios.  A transcript of this episode is available at bit.ly/3jdvLFN. Find more stories from Orbitals on the American Chemical Society's website, acs.org, or wherever you listen to podcasts. Image credit: Courtesy of Orbitals/C&EN

(Part 2/2) This month, Stereo Chemistry is sharing a pair of episodes from Distillations, a podcast from the Science History Institute. We rely on rare-earth elements to make many essential technologies like smartphones, medical imaging devices, and wind turbines. But how much do you know about where these extraordinary materials come from? In this two-part series, Distillations hosts Alexis Pedrick and Elisabeth Berry Drago explore the source of rare earths' “magic,” the costs of acquiring these elements and what scientists are doing to try to find a way to produce them sustainably. A transcript of this episode will be available shortly at cen.acs.org. Find more stories from Distillations at Distillations.org. Image credit: Courtesy of Distillations/C&EN

(Part 1/2) This month, Stereo Chemistry is sharing a pair of episodes from Distillations, a podcast from the Science History Institute. We rely on rare-earth elements to make many essential technologies like smartphones, medical imaging devices, and wind turbines. But how much do you know about where these extraordinary materials come from? In this two-part series, Distillations hosts Alexis Pedrick and Elisabeth Berry Drago explore the source of rare earths' “magic,” the costs of acquiring these elements and what scientists are doing to try to find a way to produce them sustainably. A transcript of this episode will be available shortly at cen.acs.org. Find more stories from Distillations at Distillations.org. Image credit: Courtesy of Distillations/C&EN

This month, we're sharing an episode of the podcast My Fave Queer Chemist. Hosted by graduate students Bec Roldan and Geraldo Duran-Camacho, the show celebrates the excellence of LGBTQ+ chemists everywhere. Stereo Chemistry is excited to share this recent episode featuring inorganic photochemist Irving Rettig. In the episode, Rettig discusses his background in art conservation, his experiences finding support and community in grad school, and his work promoting transgender-inclusive name change policies within academic publishing. Note: This episode includes the use of slang terms for some members of the LGBTQ+ community. A transcript of this episode is available at bit.ly/3624azW. Follow My Fave Queer Chemist on Twitter at @MFQCPod. Find new episodes at anchor.fm/mfqc. Read C&EN's article "LGBTQ+ Chemists You Should Know About" at cenm.ag/historiclqbtq. Image credit: My Fave Queer Chemist/Will Ludwig/Yang Ku/C&EN

More than 50 years of missions to Mars paint a clear picture of a cold, dry, desert planet. And at the same time, photographs, minerals, and other data tell scientists that Mars once had as much water as Earth, or even more. Why are the two planets so different today? In this episode of Stereo Chemistry, we talk to scientists about the latest research on Mars’s water and where they think the water went. Listen to the end of the episode for an announcement about the future of Stereo Chemistry. Sign up for C&EN’s newsletter at bit.ly/chemnewsletter. A transcript for this episode is available at bit.ly/3hPfHcP. Image credit: Kevin Gill/Flickr based on data from NASA/JPL/University of Arizona/USGS

Toxic elements like lead, arsenic, mercury, and cadmium in food are not a new problem. But when they show up in pureed vegetables and other foods intended for babies, alarm bells go off. That’s what happened in recent months following a bombshell congressional report that found neurotoxic metals in baby food from multiple manufacturers. In this episode of Stereo Chemistry, host Kerri Jansen and C&EN reporter Britt Erickson explore the fallout from that report and renewed efforts by baby food manufacturers, regulators, advocacy groups, and agricultural scientists to rein in the problem. Subscribe to Stereo Chemistry now on Apple Podcasts, Spotify, or wherever you get your podcasts. Instructions for adding Chemistry Update to your smart speaker are available at cenm.ag/chemistryupdate. An edited transcript of this episode is available at bit.ly/32JQhox. Image credit: Ollinka/Shutterstock

Living longer has been a human obsession for centuries, but while medical science has helped extend average life span, not all those extra years can be healthy. It turns out that aging is a major risk factor for disease. Follow along as host Kerri Jansen and reporter Laura Howes ask if instead of extending life span, we could extend health span and how modern science could make that a reality. An edited transcript of this episode will be available soon at cen.acs.org. Help us shape the future of Stereo Chemistry by taking the survey at bit.ly/StereoChemSurvey. Image credit: Yang Ku/C&EN

Where do you take your career after you’ve won all of science’s biggest prizes? In this episode of Stereo Chemistry, C&EN executive editor Lisa Jarvis sits down with Nobel laureates Frances Arnold and Jennifer Doudna to hear about whether their career goals changed after they got that early-morning phone call in October and how the pandemic has shifted the way they approach their work. A script of this episode is available at bit.ly/3u7jCW7. Sign up for C&EN's newsletter at cenm.ag/chemnewsletter. Catch up on last year's package of trailblazing women chemists, edited by Jennifer Doudna, at cenm.ag/2020trailblazers. Image credit: Caltech (Arnold)/Laura Morton Photography (Doudna)

Researchers want to invent the technologies of the future, but there are plenty of chemical questions lurking in the past. In this episode of Stereo Chemistry, C&EN assistant editor Gina Vitale joins host Kerri Jansen to explore the centuries-old secrets and nagging mysteries that keep science historians up at night—and how these researchers go about solving them. A script and additional resources are available at bit.ly/3qGGHg5. Sign up for C&EN’s Grad Student Survival Guide at cenm.ag/gradsurvivalguide. Image credit: Marjolijn Bol/Lawrence Principe/John Haldon

As we prepare for a new US president, many chemists are wondering how the administration change may affect them and their work. Will President-Elect Joe Biden change immigration policies that have reduced the number of foreign students studying at US universities? How might scientific integrity standards in the federal government change under the Biden-Harris team? And will this administration grant the chemical industry’s wish to stop the trade war with China and other US trading partners? In this episode of Stereo Chemistry, C&EN policy reporter Cheryl Hogue joins host Kerri Jansen to help orient listeners to how a Biden administration is likely to impact the world of chemistry. A script for this episode is available at bit.ly/37oPYT9. Find all C&EN’s COVID-19 coverage at cenm.ag/coronavirus. Make a donation to support C&EN’s nonprofit science journalism at cenm.ag/donate. Image credit: Luca Perra/Shutterstock

Many grad students may be surprised to learn their university’s policies for reimbursing medical fees for lab injuries do not cover grad students, or cover grad students only under certain circumstances. And it can be hard to get clarity on what is and is not covered. That’s left some grad students in an uncomfortable limbo of seeking answers after they’ve already racked up thousands of dollars in bills for an injury in the lab. In the latest episode of Stereo Chemistry, we uncover the source of this confusion and ask what—if anything—grad students can do about it. A script for this episode is available at https://bit.ly/3kMwE5O. Read C&EN’s cover story, "Who pays when a graduate student gets hurt?" at bit.ly/2INB4M5. Sign up for the Grad Student Survival Guide at cenm.ag/gradsurvivalguide. Image credit: danielfela/Shutterstock

Helium shortage 3.0 is winding down. But 2021 is likely to bring more changes to the global market for this critical, non-renewable gas. And even if there isn’t another crunch, scientists who use helium are tired of unstable supply of a material they need to keep their instruments running. In this episode of Stereo Chemistry, we’ll look at what’s behind the wobbly helium market and what scientists and instrument makers are doing to lift the heavy burden of helium use. A script for this episode is available at bit.ly/34nmunf. Find all of C&EN’s COVID-19 coverage at cenm.ag/coronavirus. Make a donation to support C&EN’s nonprofit science journalism at cenm.ag/donate. Image courtesy of Bruker BioSpin

In August 2020, Black chemists and allies took to Twitter to celebrate the inaugural #BlackInChem week. The social media campaign highlighted the diversity and accomplishments of Black chemists at all stages of their career and also created space for candid discussions about the discrimination these scientists face in chemistry. In the latest episode of Stereo Chemistry, host Kerri Jansen and reporter Ariana Remmel hear from Black chemists from a variety of disciplines across academia and industry about the current state of diversity, equity, and inclusion in the chemical sciences and what non-Black allies can do to support Black chemists. Update 11/24/20: In response to listener feedback, C&EN has added an editor's note to this episode. View the note at bit.ly/361aFUR Sign up for C&EN’s newsletter at bit.ly/chemnewsletter 9 Black chemists you should know about: bit.ly/2FioR0l More resources and a script for this episode are available at bit.ly/361aFUR Image credit: Daniel Fishel

Scientists have been naming ideas, theorems, discoveries, and so on after other scientists for a very long time (Newton’s laws of motion, anyone?). Chemists are no different. They’ve been naming reactions after each other since about the early to mid 1800s. Nowadays, organic chemists in particular use them as a kind of shorthand. However, because the majority of name reactions honor white men, some organic chemists wonder if using these names is exclusionary. In the latest episode of Stereo Chemistry, host Kerri Jansen and reporter Leigh Krietsch Boerner hear from a plethora of organic chemists on how reactions get named, who they’re named after, and whether the practice should stop. A script of this episode is available at bit.ly/3kU3enk. Share your thoughts with us on Twitter! Tweet at us @cenmag, @absoluteKerri, and @LeighJKBoerner, using the hashtag #namereactions. View the Twitter thread that inspired this episode at bit.ly/34a2dS6. Read about the 2020 class of C&EN’s Talented 12 at cenm.ag/T12. Register for C&EN’s Futures Festival at futuresfestival.org. Image credit: Yang Ku/C&EN

Rosalind Franklin and her lab assistant famously imaged the structure of DNA using X-ray crystallography, an achievement that directly facilitated James Watson and Francis Crick’s discovery of the double helix. For what would be Rosalind’s 100th birthday, the Stereo Chemistry team consults scientists and historians to envision the many ways the world might be different without the now-famous Photograph 51. Listen to the Distillations episode “Science on TV” at bit.ly/30yjZuU. A script of this episode is available at bit.ly/3hqR9Uf. Image credit: Henry Grant Collection/Museum of London