Clay weekly context brief for the Chemistry category (ISO week 2026-W37). Clay tracks publications from the Chemistry feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed. Recent publications: 1. Engineered bacteria speed rock weathering for carbon removal Source: Chemical & Engineering News Link: https://cen.acs.org/environment/biotechnology/engineered-microbes-boost-rock-weathering/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Iron-binding molecules keep olivine dissolving in seawater, helping pull more carbon dioxide from the atmosphere 2. Policy Watch: NSF graduate fellowship awards expected to drop 42% from FY26 Source: Chemical & Engineering News Link: https://cen.acs.org/policy/nsf-grfp-shutdown-plastic-recycling-derailment/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen A weekly roundup of policy news in the chemical arena and beyond 3. A reporters notebook for ACS Fall 2026 Source: Chemical & Engineering News Link: https://cen.acs.org/acs-news/reporters-notebook-acs-fall-2026/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen 5 days of discovering and sharing science, insightful keynotes, and chemists making history 4. MOF made of crown ethers grabs gold from waste Source: Chemical & Engineering News Link: https://cen.acs.org/materials/metal-organic-frameworks/mof-gold-crown-ether-wastewater/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Potassium-studded macrocycle extracts high-purity gold, leaves behind other metal ions 5. C&EN weekly chemistry news quiz, Sept. 4 Source: Chemical & Engineering News Link: https://cen.acs.org/pharmaceuticals/drug-discovery/cen-weekly-chemistry-news-quiz-september-4/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Test your knowledge of our stories on Ada Yonath, a safety incident at MIT, and regulatory changes in the US 6. My Chemical Story: How growing up on the US-Mexico border made me a scientist Source: Chemical & Engineering News Link: https://cen.acs.org/people/profiles/growing-up-us-mexico-border-scientist/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen I took inspiration where I could find it, including from Breaking Bad 7. Report flags thousands of food packaging chemicals for replacement Source: Chemical & Engineering News Link: https://cen.acs.org/food/food-package-chemical-epr-pfas/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen A new study groups food contact chemicals by structure, which may help policymakers more efficiently regulate them, the lead author says 8. 2026 Ig Nobel Prizes Source: Chemical & Engineering News Link: https://cen.acs.org/education/science-communication/2026-ig-nobel-prizes-improbable-research-zurich/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Awards are given for achievements that first make people LAUGH, and then make them THINK 9. Uncovered: To the moon, Mars, and beyond Source: Chemical & Engineering News Link: https://cen.acs.org/materials/uncovered-moon-mars-beyond/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen C&EN talks about solar system geochemistry and space mission sustainability 10. Light-driven reaction overrides a 60-year-old rule of synthetic chemistry Source: Chemical & Engineering News Link: https://cen.acs.org/synthesis/reaction-mechanisms/organic-synthesis-cyclic-bicyclic/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Tweaking electronic properties of starting materials can help bypass an obstacle to elusive bicyclic drug scaffold 11. New method brings sepsis diagnosis down from days to hours Source: Chemical & Engineering News Link: https://cen.acs.org/analytical-chemistry/diagnostics/New-method-brings-sepsis-diagnosis/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen The approach is based on continuous sampling and single-cell analysis 12. Suppressor tRNAs restore cystic fibrosis protein in models Source: Chemical & Engineering News Link: https://cen.acs.org/biological-chemistry/biochemistry/suppressor-trnas-restore-cystic-fibrosis-protein/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen A methylation marker on the tRNA, and a new lipid nanoparticle, helps the ribosome ignore disease-causing mutations 13. US nuclear safety overhaul proposal draws support from Dow and others Source: Chemical & Engineering News Link: https://cen.acs.org/policy/regulation/nuclear-radiation-safety-regulation/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen NRC plan to drop the as low as reasonably achievable standard for radiation protection is expected to face legal challenges 14. GLP-1 agonist semaglutide slows aging in mice Source: Chemical & Engineering News Link: https://cen.acs.org/biological-chemistry/semaglutide-mouse-longevity/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Lab animals on the drug live longer, mimicking well-known effects of caloric restriction 15. Flavorists are recreating smoke to save Europes snacks Source: Chemical & Engineering News Link: https://cen.acs.org/food/food-ingredients/flavorists-recreating-smoke-save-europes/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen Smoke flavorings are no longer allowed in many foods in the EU, so companies are getting creative 16. EPA adopts new chemical assessment methods to reduce animal testing Source: Chemical & Engineering News Link: https://cen.acs.org/policy/epa-chemical-risk-assessment-animal-testing/104/web/2026/09?sc=230901_cenrssfeed_eng_latestnewsrss_cen The methods predict the lung irritant risk of surfactants and oral toxicity of some pesticides but shouldnt completely replace animal models, one scientist warns Sources in this brief: Chemical & Engineering News. Selected 16 of 20 available items for this weekly brief.