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US translational-research centre funds projects for human tissues on chips

The National Center for Advancing Translational Sciences (NCATS) has awarded 17 grants to create artificial organs for drug screening. These complex mini-machines are generally the size of a microscope slide or smaller, often connected to all sorts of tubes and wires to help mimic human physiology. A lung on a chip, for example, puts blood vessel cells on one side of a membrane and lung-tissue cells on another, and uses a tiny vacuum and pumps to model breathing and blood flow. 


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