In vitro cytotoxicity (Neutral Red uptake, Kenacid Blue and MTT) and c
ytocompatibility (cell adhesion and proliferation) tests were applied
to the biocompatibility study of a series of poly(ester-ether-ester) b
lock copolymers of potential interest as biomaterials. Our results ind
icate that the copolymer extracts after 72 hours incubation with a 3T3
mouse fibroblast cell line do not induce significant toxic effects. F
urthermore, human umbilical vein endothelial cells seeded on thin copo
lymer films show a normal pattern of growth. We conclude that the in v
itro tests used are a valid instrument to evaluate the potential toxic
action of synthetic materials on different cell compartments and that
the tested materials seem to be promising for future applications in
the field of biomedical devices.