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Researchers develop framework for understanding current-switched magnetic devices

An international collaboration has made significant progress in modelling how electric currents affect the magnetization in some current-switched magnetic devices. While a number of such devices hold promise as low energy electronics, progress on some of the latest ideas has been impeded because different and contradictory models have been proposed to understand how they work and how to best optimize their performance.

Posted: Feb 5th, 2014

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Electronically controlled drug delivery from graphene nanocomposites

Potential side effects of many of today's therapeutic drugs can be downright frightening - just listen carefully to a drug commercial on TV. These effects often occur when a drug is active throughout the body, not just where and when it is needed. But scientists are reporting progress on a new tailored approach to deliver medicine in a much more targeted way.

Posted: Feb 5th, 2014

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Watching nanoparticles grow

New approach shows particles and ensembles follow different growth patterns, explaining a frustrating discrepancy in experimental results.

Posted: Feb 5th, 2014

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Nanotechnology-enabled smartphone-based mercury testing

A team of researchers from UCLA has developed a smartphone attachment and application to test water for the presence of mercury, a toxic heavy metal. The scientists created an integrated opto-mechanical attachment to the built-in camera module of a smart-phone to digitally quantify mercury concentration using a plasmonic gold nanoparticle and aptamer based colorimetric transmission assay that is implemented in disposable test tubes.

Posted: Feb 5th, 2014

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Inner workings of a cellular nanomotor revealed

Our cells produce thousands of proteins but more than one-third of these proteins can fulfill their function only after migrating to the outside of the cell. While it is known that protein migration occurs with the help of various 'nanomotors' that push proteins out of the cell, little is known about their precise mechanical functioning. New research reveals the inner workings of one such nanomotor, called SecA, with new clarity.

Posted: Feb 5th, 2014

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