| 초록 |
Recently, researches on bioresorbable electronic devices have focused on extending the lifetime of devices, which means the device dissolves much slower for the long-term operation in aqueous environments. Firstly, to delay the decomposition of the bioresorbable pressure sensor, thin silicon membrane and wax side encapsulation layers are introduced to the device. Secondly, highly conductive, water-soluble conductive inks are newly developed and applied to the transient pressure sensor. An optimized formulation is prepared via in situ polymerization of polyanhydride composited with molybdenum microparticles at appropriate concentrations. This conductive ink can be printed to form electrical interconnects, antennas, and strain gauges, and pressure sensors and offers stable operation over extended periods of immersion in aqueous environments. In addition, in vivo immunochemistry tests verify the biocompatibility of these bioresorbable pressure sensors. |
