MICRONEEDLE HAVING IMPROVED ABSORPTION RATE OF ACTIVE AGENT

摘要

PURPOSE: A microneedle is provided to rapidly discharge active materials during injection and to obtain enough intensity to penetrate the skin. CONSTITUTION: A microneedle includes hydrogel particles which are swollen when coming into contact with water. The microneedle also includes materials having a swelling property different from the hydrogel particles. The microneedle can rapidly absorb active materials since the microneedle is not successively disassembled from the surface thereof but the whole microneedle is destroyed at a time.