While the prospect of 3D printers pumping out biological tissues and replacement organs has many justifiably excited, researchers at Oxford University have gone in a slightly different direction with the creation of a custom 3D printer capable of producing synthetic materials that have some of the properties of living tissues. Rather than being intended for supplying spare parts for damaged replicants, the new materials could be used for drug delivery or replacing or interfacing with damaged tissues inside the human body. The new 3D-printed materials take the form of “droplet networks,” which are made up of thousands of connected water droplets that are encapsulated within lipid films. Lipids are naturally occurring molecules whose main biological function is energy storage, signaling and as structural components of cell membranes. The researchers say that, because the droplet networks don’t contain a genome and don’t replicate, they don’t have some of the proble...
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