微针给药技术是一种新型的以微创方式在皮肤上传递药物的方法， 微针贴作用于皮肤，针尖能够刺入角质层，实现透皮/皮内控释药物释放。 该技术结合了注射给药和透皮给药的优势，能够大幅度拓展经皮给药的药物种类， 如生物大分子的蛋白、多肽、疫苗、DNA以及强亲水性药物和强疏水性药物，可以自主、精确给药， 是新药改良制剂开发的平台技术。微针技术入选《科学美国人》2020年十大新兴技术， 这些新技术有可能会给工业、医疗保健和社会带来革命性的变化!

不溶于水的微针针尖表面包衣一层药物，微针扎入皮内能快速释放药物，适用于微量、精准定量给药。

以水溶性的药用高分子辅料为微针基质， 将药物/活性成分均匀分散于基质材料中或者针尖的基质材料中形成微针贴片， 当微针针尖进入皮内时，能够快速溶解并释放药物。

微针贴片不溶于水，针尖进入皮内后形成溶胀凝胶， 微针贴片上面的药物能够沿着溶胀凝胶打开的给药通道进入体内，实现药物释放， 释药后的针尖能够被完整移出皮内。是透皮给药技术的改进，适用于大剂量透皮给药。

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