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Chain Reaction by ACS: Daily Summaries Delivered
by American Chemical Society
Chain Reaction links chemistry's past to its future, revealing how this ever‑evolving science shapes the world around us, from the materials we use every day to the environment that we depend on. Each episode brings fresh perspectives and personal stories from chemists, engineers, and other scientists, as well as historians who guide us through pivotal moments in chemistry’s history. Together, we’ll uncover chemistry’s surprising connections, explore its interdisciplinary impact, and see how past discoveries set off the breakthroughs of today and the future. Whether you’re a student, an experienced scientist, or simply curious, Chain Reaction will show you how chemistry fits into the bigger picture — and why it matters now more than ever.
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- 4 days ago14 min
[Bonus] When a Last Resort Antibiotic Fails: The Drugs That Shape Us
On this bonus episode we answer a listener's question about antibiotic resistance arising from agriculture by diving into the story of colistin, an antibiotic that is used as a last resort treatment. When colistin resistance was first reported in animals and humans, the public health community was understandably panicked, prompting governments to take action to regulate its use. Transcripts and episode sources at acs.org/chainreaction
- 2 weeks ago41 min
From Insulin to GLP-1s — a Peptide Saga: The Drugs That Shape Us, Episode 4
If you’re on social media, you may feel bombarded by influencers promoting peptides for a range of ailments so broad it almost seems like a brand-new trend. But peptide-based therapies actually date back to 1922, when insulin was first administered to treat diabetes. But it wasn’t until semaglutide (better known as Ozempic) entered the market that peptides truly captured public attention. In today’s episode, we explore how what chemists and other scientists learned from insulin paved the way ...
- 3 weeks ago56 min
Three Theories of Depression and the Promise of Psychedelics: The Drugs That Shape Us, Episode 3
In the late 1950s, a tuberculosis drug was repurposed as the world’s first antidepressant. Then the selective serotonin reuptake inhibitor (SSRI) Prozac ushered in a new era of antidepressants. Today SSRIs are some of the most widely prescribed drugs in the country, but gaps still exist in our biological understanding of mental health, the overall efficacy of antidepressants, and predicting serious side effects. In response, some scientists and physicians are turning to different classes of d...
- Aug 20, 202640 min
Beyond the Pill: The Drugs That Shape Us, Episode 2
The discovery of sex hormones in the 1930s led to the development of female birth control, a widely used class of drugs that reshaped cultural norms surrounding fertility and bodily autonomy. But contraception remains largely the responsibility of women. On today’s episode: the evolution of birth control and the future of male contraception. Transcripts and episode sources at acs.org/chainreaction
- Aug 13, 202650 min
The Antibiotics Boom, Bust, and Search for What's Next: The Drugs That Shape Us, Episode 1
Through a few serendipitous discoveries, antibiotics changed the course of history by turning deadly infections into manageable sicknesses. But it didn’t take long for bacteria to begin outsmarting these wonder drugs. On today’s episode: The fascinating world of antibiotics and the efforts to tackle antibiotic resistance, including using AI to come up with new drugs that will only become more essential. Transcripts and episode sources at acs.org/chainreaction
- Aug 6, 20261 min
Teaser: The Drugs That Shape Us
You’ve likely relied on a drug at one point or another, whether it be a prescribed medication or something over the counter. The upcoming miniseries of Chain Reaction explores the history, impact, and future of major drug classes, including antibiotics, birth control, antidepressants, and GLP-1s. Margot and Sam will chat with experts about the history and scientific breakthroughs behind these medicines and the ongoing research that could shape the next generation of drugs. Transcripts a...
- Jul 23, 202618 min
[Bonus] The Poison Squad and Urinalysis: The Fascinating Lives of ACS Presidents Harvey Wiley and Helen M. Free
This bonus episode continues the celebration of the American Chemical Society’s 150th anniversary by spotlighting two remarkable ACS presidents whose work helped shape public health in very different ways. Hosts Margot and Shane trade stories about these pioneering chemists. Harvey Wiley, ACS president in the 1890s, investigated dangerous food additives like formaldehyde and borax and presided over the infamous “Poison Squad” experiments. He was part of the impetus behind the “Wiley Act...
- Jul 9, 202636 min
A Conversation with Chemical Kim: Chemistry is Everyone, Episode 4
To cap off this special #ACS150 miniseries, we chat with chemistry educator, science communicator, and social media creator Kim Hilton — better known as Chemical Kim (follow @chemicalkim). Kim reflects on her unexpected path into teaching, from struggling to understand chemistry as a college student to becoming a professor who has spent three decades helping others discover their place in STEM. The conversation explores Kim’s passion for outreach, from creating hands-on science experiences fo...
About Chain Reaction by ACS
Chain Reaction links chemistry's past to its future, revealing how this ever‑evolving science shapes the world around us, from the materials we use every day to the environment that we depend on. Each episode brings fresh perspectives and personal stories from chemists, engineers, and other scientists, as well as historians who guide us through pivotal moments in chemistry’s history. Together, we’ll uncover chemistry’s surprising connections, explore its interdisciplinary impact, and see how past discoveries set off the breakthroughs of today and the future. Whether you’re a student, an experienced scientist, or simply curious, Chain Reaction will show you how chemistry fits into the bigger picture — and why it matters now more than ever.
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