Improvement in transdermal drug delivery performance by graphite oxide/temperature-responsive hydrogel composites with micro heater

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• 作者：Jumi Yun^a ; Dae Hoon Lee^b ; Ji Sun Im^a ; Hyung-Il Kim^a ; ^{hikim@cnu.ac.kr}
• 关键词：Transdermal drug delivery system ; Temperature-responsive hydrogel ; Graphite oxide ; Micro heater ; Joule heating method
• 刊名：Materials Science and Engineering ; C
• 出版年：2012
• 期刊代码：63_09284931
• 类别：ms
• 出版时间：1 August, 2012
• 卷：32
• 期：6
• 页码：1564-1570
• 文件大小：1476 K

摘要

Transdermal drug delivery system (TDDS) was prepared with temperature-responsive hydrogel. The graphite was oxidized and incorporated into hydrogel matrix to improve the thermal response of hydrogel. The micro heater was fabricated to control the temperature precisely by adopting a joule heating method. The drug in hydrogel was delivered through a hairless mouse skin by controlling temperature. The efficiency of drug delivery was improved obviously by incorporation of graphite oxide due to the excellent thermal conductivity and the increased interfacial affinity between graphite oxide and hydrogel matrix. The fabricated micro heater was effective in controlling the temperature over lower critical solution temperature of hydrogel precisely with a small voltage less than 1 V. The cell viability test on graphite oxide composite hydrogel showed enough safety for using as a transdermal drug delivery patch. The performance of TDDS could be improved noticeably based on temperature-responsive hydrogel, thermally conductive graphite oxide, and efficient micro heater.