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Nanoscale 'Fountain Pen' Draws Therapeutic Nanodiamonds


A research team at Northwestern University has developed a tool that can precisely deliver tiny doses of drug-carrying nanomaterials to individual cells. The tool, called the nanofountain probe, functions in two different ways. In one mode, the probe acts like a fountain pen with drug-coated nanodiamonds serving as the ink, allowing researchers to create devices by “writing” with it. The second mode functions as a single-cell syringe, permitting direct injection of biomolecules or chemicals into individual cells. The research was led by Horacio Dante Espinosa, Ph.D., and Dean Ho, Ph.D., and the results appear in the journal Small.
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