Gene-edited pig livers, synthetic embryos, and 3D-printed tissue implants… the world of organ transplantation is becoming increasingly bizarre as scientists explore high-tech ways to keep people alive.  These experiments are birthing new business opportunities. One company cashing in is University of Oxford spinout OrganOx, which this week secured $142mn in funding to fuel its expansion in the US as it mulls a potential IPO.     OrganOx’s Metra machine pumps oxygenated blood and nutrients through the liver, mimicking natural conditions during a transplant. This helps the organ stay healthier for up to 12 hours longer than traditional methods — giving doctors more…

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