ENGINEERING ENZYMES A RECYCLING REVOLUTION?

摘要

atented as a plastic in the 1940s, polyethylene tereph-thalate, or PET, has become ubiquitous. Virtually shatterproof, it offers an extremely high strength-to-weight ratio and does not react to food or water. Throw in its low production costs and you have an almost perfect packaging material - and we've not even touched on its uses for fabrics and textiles.