Microscopic probes developed at Rice University have simplified the process of measuring electrical activity in individual cells of small living animals. The technique allows a single animal like a worm to be tested again and again and could revolutionize data-gathering for disease characterization and drug interactions.

Via:: https://phys.org/news/2017-04-nano-spears-gently-electrical-small-animals.html

Nano-SPEARs gently measure electrical signals in small animals

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