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Employment

Layoffs on the mind

Chemjobber on how to not lose your identity in an uncertain economy

Start-ups

C&EN’s 2019 10 Start-Ups to Watch

These young firms are working to improve the lives of individuals and communities as well as the health of the planet

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Chemical Regulation

US EPA lacks data to support chemical evaluations

Advisory committee, numerous stakeholders criticize latest risk assessments


Trump picks Stephen Hahn to run the FDA

The hospital administrator would be the fifth person to helm the agency since Trump took office

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Drug Delivery

Nanoparticles enable oral insulin delivery in mice

The particles help insulin, a peptide, to slip through the intestinal wall and into the bloodstream


How does DEET fend off malaria mosquitoes?

New study suggests that the repellent cloaks the volatile human skin compounds that the insects use to spot us

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Photonics

Fluorescent nanoparticles light up rocks’ pores

A simple method reveals porosity of geological materials


Chemically tweaked nanotubes trap trions

Adding functional groups to carbon nanotubes lengthens lifetimes of the unusual subatomic quasiparticles