W Carothers 1932 + Pennings 1990 + Auras 2010 PLA biodegradable-polymer; modern 3D-printing + medical-suture + bioplastic boom.
W Carothers 1932 + Pennings 1990 + Auras 2010 PLA biodegradable-polymer; modern 3D-printing + medical-suture + bioplastic boom.