September 21, 2015 Issue | Chemical & Engineering News
Copyright © 2015 American Chemical Society

September 21, 2015 Issue

Volume 93, Issue 37
September 21, 2015 Issue, Vol. 93 | Iss. 37
Resistant weeds, fears of health effects drive market for alternatives to widely used herbicide
By Britt E. Erickson
(pp. 10-15)
Some nuclear magnetic resonance instruments shrink, even as the more complex ones get larger (pp. 19-21)
Science & Technology
To mark last month’s independence day celebrations, C&EN looks back at the country’s struggles (pp. 28-29)
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News of the Week

Photoredox Catalysis Activates Aryl C–H Bonds In Amination Reaction

Organic Synthesis: Site-selective reaction provides a general path to wide range of aryl amines

Federal Budget Deadline Looms

Science Funding: Congressional wrangling makes a government shutdown likely

First PFOA Lawsuit Against DuPont, Chemours Goes To Trial

Toxic Tort: Trials may determine chemical firms’ liability for contaminated drinking water

Air Products To Spin Off Materials Technologies Business

Move will separate venerable firm into separate industrial gases and chemical companies

Study Paints New Portrait Of Cell’s Response To Stress

Cell Biology: Protein aggregates formed during heat shock aren’t necessarily a death sentence

Chemical Firms Target Batteries

Energy: Overcoming hesitancy, companies invest in raw materials for Li-ion batteries

Helping Clear Out Amyloid-β

Neuroscience: Researchers report possible new way for Alzheimer’s protein to leave the brain

Making Glycoconjugate Vaccines More Uniform And Effective

Immunology: Study demonstrates that vaccine efficacy depends on amino acid site where researchers attach sugar antigens to carrier protein

Ytterbium Gets A New Atomic Weight

Periodic Table: IUPAC lowers the element’s vital stat



Science & Technology

Chemical educator and Compound Interest blogger Andy Brunning explains the blend of chemicals used by pens to leave their indelible marks.
Study showing how a sea slug chemically sniffs out its seaweed prey highlights the emerging field of marine chemical ecology
(pp. 30-31)
To mark last month’s independence day celebrations, C&EN looks back at the country’s struggles
(pp. 28-29)
Una catálisis fotoquímica transforma enlaces C–H en enlaces C–N en posiciones selectivas de arilos.