遥控器

Design of a remote-control drug delivery implantable chip for cancer local on demand therapy using ionic polymer metal composite actuator

ty10086 提交于 周四, 08/26/2021 - 13:15
Abstract(#br)Since the local, on demand, cancer therapy is a challenging clinical issue today, this paper presents the design, fabrication and characterization of a remotely controlled single reservoir drug delivery chip using Ionic Polymer Metal Composite (IPMC) actuator. Here, Drug release was externally programmed and controlled wirelessly on demand by a communication circuit. The transmitter and receiver circuits were designed to control the release/sealed status remotely even from 7 cm distance while the transmitter and receiver were coupled magnetically.

具有太阳光牵引的磁悬浮光热驱动器

ty10086 提交于 周三, 08/25/2021 - 15:39
太阳能因其量大、来源广而越来越受到重视。构建了三维多孔结构的石墨烯/碳纳米管气凝胶( GNTA )体系,并用聚二甲基硅氧烷( PDMS )浸渍,得到GNTA / PDMS复合材料,在太阳光谱的波长范围内达到98 %的吸收。将热解石墨( PG )片材和双向取向聚丙烯( BOPP )薄膜与GNTA / PDMS复合,构建了GNTA / PDMS-PG @ BOPP光热驱动器。在1 ~ 3太阳范围内,随着光强逐渐增大,驱动器在磁场作用下的最大弯曲曲率达到0.50 cm-1,比非磁环境下高0.11 cm-1,表现出低能耗和高能量利用效率。采用GNTA / PDMS-PG @ BOPP复合材料设计了一种‘翼服飞行员’执行机构和一种仿生鱼类执行机构。驱动器可以在磁场中跟随太阳光的信号运动,同时由于各层的热膨胀特性不同而表现出变形。这种复合材料可以集成预先编程的光路和驱动,在恶劣环境下的空间探测中显示出巨大的应用潜力。