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March 4, 2019 Cover
Volume 97, Issue 9
International scientists have long been a key part of the US research workforce, but concerns are rising that they’ll start to turn elsewhere
Cover image:An illustration showing diverse scientists moving test tubes in an American flag motif.
Credit: Davide Bonazzi
Science in the US is built on immigrants. Will they keep coming?
International scientists have long been a key part of the US research workforce, but concerns are rising that they’ll start to turn elsewhere
Top Instrument Firms of 2018
Ranking of scientific instrument makers finds companies growing with minimal impact, so far, from the trade dispute between the US and China
Chemists explore the periodic table’s actinide frontier
Investigations of the table’s shadowy realms are enjoying a renaissance
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Meet the 'I Spy a Periodic Table' Readers’ Choice winner
High school chemistry teacher Lauren Langman inspires chemists of all ages
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Imports of used PFAS into US scrutinized
Regulators examine Chemours’s shipments of GenX fluoroethers to North Carolina for reprocessing
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These scientists want to engineer breast-milk cells to deliver drugs to babies. Here's how.
Katie Whitehead and her team at Carnegie Mellon University will start with goat-milk cells to see if they can carry therapeutic payloads
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From our archives: An essay on manganese, by Joan Selverstone Valentine
To celebrate the International year of the Periodic Table, C&EN is re-releasing its favorite essays from a special 2003 collectors’ issue celebrating the elements
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Science Concentrates
CRISPR base editors cause unexpected mutations
A pair of studies show that cytidine base editors, but not adenine editors, create off-target edits
