(Phys.org) -- Within each of the cells in our bodies, and between individual cells, there are permanent transport processes occurring over distances ranging from a few nanometers to several millimeters. One of these cellular cargo carriers works by means of molecular motors that walk along the filaments of the cellular skeleton (cytoskeleton). British researchers have used these as inspiration to develop a molecular track, along which a small molecule can move back and forth like a courier. Their system is described in the journal Angewandte Chemie.
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