C&EN

Chemical & Engineering News (C&EN) is a weekly publication produced by the American Chemical Society, offering valuable insights and updates in chemistry and chemical engineering. The magazine covers a wide range of topics, including the latest news and research, job opportunities, industry developments, government policies, and funding information. Both the print and digital editions are accessible to those with a national membership in the American Chemical Society. Additionally, the front section of the magazine is available online for free, while a subscription is necessary to access the complete content. Readers can also find exclusive online features and searchable archives of past issues.

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Articles

Glitter and glow

2 days ago | cen.acs.org | Brianna Barbu

Even after many years in the lab, Carina Crucho still loves to find beauty in small things. Case in point: these starburst-like crystals she recently photographed glowing with bright orange fluorescence under an ultraviolet lamp. Crucho is an organic chemist at the NOVA School of Science and Technology in Lisbon, Portugal. Her job is to create fluorescent molecules that can be incorporated into nanomaterials. Many of the molecules she makes have biomedical uses.
Personal care pulls away from synthetic polymers

1 week ago | cen.acs.org | Craig Bettenhausen

The personal care industry has for years sought ingredients that can claim a natural origin, and part of that effort is finding alternatives to synthetic polymers. At In-Cosmetics Global 2025, a trade show for cosmetics and personal care ingredients held in Amsterdam this week, several chemical makers launched or featured biobased alternatives to personal care polymers.
Climate-friendly concrete

2 weeks ago | cen.acs.org | Craig Bettenhausen

By It's hard to beat the scale of concrete. Humanity makes 30 billion metric tons per year, mostly through a process that emits massive amounts of CO 2. Researchers and entrepreneurs are working on ways to turn that around and make concrete with a milder impact on climate change.
500-plus US facilities could duck chloroprene, other emission caps

2 weeks ago | cen.acs.org | Leigh Boerner

More than 500 chemical manufacturing facilities, power plants, and metal smelters across the US and Puerto Rico qualify for the US Environmental Protection Agency's recently publicized exemptions to the Clean Air Act, according to an analysis released Monday by the advocacy group the Environmental Defense Fund (EDF). This analysis comes on the heels of a request last month from chemical and oil companies to be exempted from certain federal air pollution limits.
Inhance sues EPA to keep PFAS data confidential

2 weeks ago | cen.acs.org | Britt E. Erickson

Inhance Technologies, a small Texas-based company that fluorinates plastic containers, is fighting to keep its R&D testing data confidential. In a lawsuit filed against the US Environmental Protection Agency on April 2, the firm claims that disclosure of data related to long-chain per- and polyfluoroalkyl substances (PFAS) in treated containers would cause significant competitive harm.
Praseodymium powers up to +5

2 weeks ago | cen.acs.org | Bethany Halford

Pushing the known limits of lanthanide oxidation, chemists have isolated praseodymium (Pr) in the +5 oxidation state. WhilePr 5+ compounds have been observed in the gas phase and in noble gas matrix isolation conditions before, this is the first time chemists have been able to characterize one using X-ray crystallography. The finding suggests that chemists should shift how they situate lanthanides in the periodic table.
The serendipitous origins of 'forever chemicals'

2 weeks ago | cen.acs.org | David Anderson |Gina Vitale

C&EN's latest podcast Inflection Point leans on our 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.
Colorado start-up launches to improve drug discovery chemistry

2 weeks ago | cen.acs.org | Aayushi Pratap

A new company has entered the drug discovery space with what it calls a "chemistry-first" platform. Colorado-based Cime Therapeutics has emerged from stealth with $2.1 million in preseed financing to advance its method for efficiently synthesizing and screening molecules that could become oncology drugs.
Adding silica to soil can help fight tomato pest

2 weeks ago | cen.acs.org | Geoffrey Kamadi

To fight off the tomato pinworm, silicon might just be the answer. The tomato pinworm ( Phthorimaea absoluta) is an invasive pest species that originates in South America and is now found in Europe, Asia, and Africa. The pest can cause 100% tomato crop failure, causing $1-10 billion annual losses in Africa.
Chemistry majors, set to graduate in May, stress over their futures

2 weeks ago | cen.acs.org | Laurel Oldach |Krystal Vasquez |Rowan Walrath

She was excited when the acceptance letter came in January, from a research university in a major East Coast city. "In my brain, I was like, 'Yeah, this is it,' " the student tells C&EN. But in February, when she put together all the offers she had, she began to feel nervous. The offer letter from the research university that was her first choice had promised a contract to follow, but it hadn't yet arrived.