4 March 2012: Have something to say about an article you’ve read on Chemistry World this week? Leave your comments below…

Polymer thermometer picks out cell’s hotspots
A fluorescent polymer can be used to take the temperature of organelles within a cell

Croatia to slim down funding for science journals
The Croatian government has said it will fund only the best journals, leaving some facing an uncertain future

Killer crystals turn pyroelectricity on bacteria
Powdered pyroelectric crystals that catalyse the formation of reactive oxygen species could be harnessed to kill bacteria

Special treatment for scientists under immigration rules
Responding to concern in the academic community, the UK government has eased immigration strictures

China battles more river spills
Conflict between national and local interests threatens environmental progress

Luminescent carbon nanodots from coffee
A greener and less toxic way to make carbon nanomaterials using waste coffee grounds

Simulating your way to a better supercapacitor
A model of ion arrangement in a supercapacitor will help researchers design devices that hold more energy

Magnetic levitation to measure protein binding
Diseases could be diagnosed cheaply in the developing world using a simple device that measures density with magnets

Molecular dance set to make waves across the pond
A simulation that lets people ‘play’ with atomic particles has proven so popular in the UK it’s going to the US

Picturing bacteria on your phone
A mobile phone could be used to detect Escherichia coli

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