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

This hydrogel heals bleeding hearts

1 day ago | cen.acs.org | Prachi Patel

Closing wounds in soft elastic organs such as the lungs and heart is tricky. Today's surgical glues don't stick strongly to wet tissue, lack the necessary elasticity, and are unable to stanch bleeding. A new injectable hydrogel made of human tissue protein and silicate nanoparticles could help ( Sci. Transl. Med. 2025, DOI: 10.1126/scitranslmed.adr6458). The hydrogel stops bleeding and seals injuries within seconds and then helps regenerate tissue over time.
Green hydrogen is still making gains

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

Green hydrogen, which is made by splitting water with renewable energy, sometimes seems like a long-shot solution to climate change. But despite political and economic headwinds, the low-carbon chemical feedstock and fuel is making some gains-especially in Europe-in the form of subsidies, investments, and deployed projects. The nascent industry has struggled in recent months as the Donald J.
Austrian 'mummy' mystery resolved

1 week ago | cen.acs.org | Victoria Atkinson

The mystery surrounding the mummified remains stored at the church of Sankt Thomas am Blasenstein, a small village in Upper Austria, has finally been solved. Researchers have now identified the person who in death became known colloquially as the "air-dried chaplain," and they have also solved the puzzle of just how he was embalmed ( Front. Med. 2025, DOI: 10.3389/fmed.2025.1560050). Unlike mummification practices in ancient Egypt, the process involved no removal of internal organs.
EPA's plan to protect species from insecticides draws unusual support

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

After decades of debate in the US over how to manage insecticides' unintended harms to endangered species, farm groups are supporting the US Environmental Protection Agency's latest strategy to protect more than 900 species. The plan, released April 29, updates a draft version released in July 2024.
Mouse study suggests that starch-based microplastics may harm health

2 weeks ago | cen.acs.org | Victoria Atkinson

Starch-based plastics, which are derived from treated starch from plants, may not be as safe or environmentally benign as previously assumed. Composed mainly of starch and typically blended with other biobased polymers such as polylactic acid (PLA), starch-based plastics were hailed as a green alternative to conventional plastics and are now widely used in everyday products like food packaging and disposable cutlery.
ChEmpower raises $18.7 million for microchip polishing tech

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

The electronic chemical start-up ChEmpower has raised $18.7 million in a series A funding round to advance its abrasive-free system for polishing and planarizing silicon wafers during semiconductor manufacturing. The investment was led by the venture capital arm of Merck KGaA, which supplies chemicals to the semiconductor industry, and included participation by Intel and the semiconductor toolmaker Tokyo Electron.
Osmium ensnared in a hydrocarbon ring

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

By constructing an aromatic hydrocarbon framework around an osmium ion, chemists have created a new class of organometallic compound. The in-plane metallo-annulenes are essentially carbon clusters embedded with transition metals. The molecules could have applications in high-performance electronics or could be used to make graphene doped with metal ( Nature 2025, DOI: 10.1038/s41586-025-08841-2).
FDA's shift from animal testing opens doors for organoid makers

2 weeks ago | cen.acs.org | Rowan Walrath

The last few weeks have been busy for Jim Corbett. Corbett, the CEO of organ-chip developer Emulate, has been fielding requests from potential clients, as well as from early investors who say they want to put more money into the start-up. The impetus: an announcement from the US Food and Drug Administration in early April indicating that the agency plans to phase out animal tests -a longtime cornerstone of preclinical drug testing-in favor of other technologies.
How does nonstick cookware work, and should you switch to 'green' pans?

2 weeks ago | cen.acs.org | Prachi Patel

With its sizzling, sputtering sound effects and heady aroma, frying bacon and eggs is a morning ritual many people enjoy. Especially when the juicy items slide easily onto your plate, leaving nothing behind in the skillet to scrape off or scrub clean. Many home cooks rely on nonstick pans for that kind of hassle-free meal making. For about 70 years, coatings based on polytetrafluoroethylene (PTFE) have been the gold standard for nonstick cookware.
EPA outlines steps to address PFAS contamination

2 weeks ago | cen.acs.org | Larry Pearl

The US Environmental Protection Agency on Monday announced a series of steps it plans to take to address per- and polyfluoroalkyl substances (PFAS). In a news release, the agency lists 21 actions across three "principles": strengthening the science, fulfilling statutory obligations and enhancing communication, and building partnerships.