Keywords N-trimethyl chitosan;penetration enhancement of skin absorption;attenuated total reflection-fourier transform infrared spectroscopy;deconvolution;keratin;cumulative penetration;

• 三甲基壳聚糖;透皮吸收促进作用;衰减全反射傅立叶红外光谱;去卷积;角蛋白;累积透过量;