Clay weekly context brief for the Chemistry category (ISO week 2026-W31). 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. ACS continues 150th celebration at EuChemS Source: Chemical & Engineering News Link: https://cen.acs.org/acs-news/acs-continues-150th-celebration-euchems/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen The event offered networking, celebrated scientists and collaboration, and announced a new program with the German Chemical Society 2. Policy Watch: DHS puts new limit on international student stays in the US Source: Chemical & Engineering News Link: https://cen.acs.org/policy/student-visa-grant-animal-testing-tfa/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen A weekly roundup of policy news in the chemical arena and beyond 3. C&EN weekly chemistry news quiz, July 24 Source: Chemical & Engineering News Link: https://cen.acs.org/biological-chemistry/cen-weekly-chemistry-news-quiz-july-24/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Test your knowledge of our stories on business deals, biodegradable circuits, breathalyzers, and more 4. Ethylene capacity keeps shrinking in South Korea and Japan as Chinese competition mounts Source: Chemical & Engineering News Link: https://cen.acs.org/business/petrochemicals/ethylene-cutbacks-japan-korea-china/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen New rationalization program in South Korea adds to efforts to downsize basic chemical output 5. Dow sales and profits balloon as polymer prices jump Source: Chemical & Engineering News Link: https://cen.acs.org/business/finance/dow-sales-profits-iran-polymer/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Higher prices, cost cutting make for big second quarter for the firm 6. Team USA brings home gold from 58th International Chemistry Olympiad Source: Chemical & Engineering News Link: https://cen.acs.org/acs-news/team-usa-brings-home-gold/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen The team was awarded 3 gold and 1 silver medal during a closing ceremony on July 18 7. Uncovered: Record-setting laser boosts cryo-electron microscopy Source: Chemical & Engineering News Link: https://cen.acs.org/analytical-chemistry/imaging/uncovered-record-setting-laser-boosts-cryo-electron-microscopy/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Phase-contrast device could allow in-cell proteomics 8. Direct sugar chemistry streamlines C-aryl glycoside synthesis Source: Chemical & Engineering News Link: https://cen.acs.org/synthesis/direct-sugar-chemistry-streamlines-drug-synthesis/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen New methods offer simpler routes to diabetes drugs and other carbohydrate-derived medicines 9. George Christou wins 2026 Herty Medal Source: Chemical & Engineering News Link: https://cen.acs.org/acs-news/george-christou-wins-2026-herty-medal/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen The distinguished professor is recognized for his service and research 10. Fungi-based circuit boards could make industry greener Source: Chemical & Engineering News Link: https://cen.acs.org/materials/biobased-materials/fungi-based-circuit-boards-make-industry-greener/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Biodegradable materials made from waste would significantly reduce the carbon footprint of electronics 11. Samsung makes a $1.8 billion bet on peptide production Source: Chemical & Engineering News Link: https://cen.acs.org/business/mergers-acquisitions/Samsung-makes-18-billion-bet/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Planned acquisition of specialist PolyPeptide signals interest in peptides by drug outsourcing firms 12. This breathalyzer can tell when you are burning fat Source: Chemical & Engineering News Link: https://cen.acs.org/analytical-chemistry/chemical-sensing/breathalyzer-fat-burning-acetone/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Handheld chemical sensing device detects acetone in breath 13. Pharma learns to share as its AI demands more data Source: Chemical & Engineering News Link: https://cen.acs.org/pharmaceuticals/drug-discovery/pharma-learns-share-ai-demands-more-data/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Companies aim to improve drug discovery by training AI on one anothers data and generating large, open datasets 14. Catalyxx plans biobased alcohol plant to improve European chemical security Source: Chemical & Engineering News Link: https://cen.acs.org/business/specialty-chemicals/catalyxx-plans-biobased-alcohol-plant/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Spanish start-up wins $22 million from the European Union to support the project 15. Business Watch: BASF warns about Iran War; Kira merges with struggling Jasper Source: Chemical & Engineering News Link: https://cen.acs.org/business/business-watch-basf-warns-about-iran-war-kira-merges-jasper/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen Heres what were watching in the chemical and pharmaceutical industries this week 16. Recent EPA pesticide approvals spur further PFAS debate Source: Chemical & Engineering News Link: https://cen.acs.org/policy/chemical-regulation/epa-pfas-pesticide-regenerative-agriculture/104/web/2026/07?sc=230901_cenrssfeed_eng_latestnewsrss_cen The agencys decisions come as it starts implementing President Donald J. Trumps June 25 executive order on regenerative agriculture, which calls for reducing reliance on chemical crop protection tools Sources in this brief: Chemical & Engineering News. Selected 16 of 20 available items for this weekly brief.