A Parylene Bellows Electrochemical Actuator for Intraocular Drug Delivery

論文發表人：李柏穎 (南加州大學電機所博士班)

 

http://www.transducers09.org/

 

我們提出第一個用於眼球供藥具備伸縮膜來分隔電解室與儲藥槽之電化學致動器。對聚二甲苯伸縮膜是以聚乙二醇鑄造法來製造，且其機械性質經仔細校正。我們也針對致動器功率進行最佳化已達到最佳使用效率。我們最終獲得80%之致動器效率及1.5 mm之最大伸縮膜變形量。同時我們也成功利用無線功率來驅動本致動器。

 

The first electrochemical actuator with a Parylene bellows for intraocular drug delivery is presented in which the bellows separates the electrolysis actuation chamber from the drug reservoir.  The Parylene bellows was fabricated using a novel polyethylene glycol (PEG)-molding process and mechanically characterized.  Optimization of the gas generation efficiency of the actuators was performed.  We achieved an efficiency approaching 80% and over 1.5 mm deflection with our actuator.  Wireless operation was also demonstrated.