8.5　TDD Technology Based on Biomedical Polymers

Biomedical polymers have been applied to TDD for several decades，from the second to the fourth generation of TDD technology.This section will introduce the application of biomedical polymers in the field of TDD technology from three parts：penetration enhancers，nanoparticles（NPs）and microneedles（MNs）based on biomedical polymers.(https://www.daowen.com)