MICRONEEDLE ARRAY

摘要

By studying the relation between the crystallinity and the performance of a biodegradable resin, the relation between the weight average molecular weight and the strength of the biodegradable resin, and the relation between the weight average molecular weight and the performance of the biodegradable resin, it is found that a microneedle array which comprises microneedles containing an amorphous polylactic acid that has a weight average molecular weight of 40,000-100,000 can maintain the function and the performance required for a microneedle array.