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Effect of Biomolecule Modification on Surface of ZnO Nanoparticles on Resistive Switching Device
( Dhanashri Vitthal Desai ),이현호 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
Dopamine (DOPA) is a biomolecule and well-known neurotransmitter in nerve system. In addition, its special binding affinity has been demonstrated in many researches. In this study, in order to construct a nanobiotechnology-based electronics, zinc oxide nanoparticles (ZnO NPs) were coupled with dopamine and adopted as nanotraps for resistive switching (RS) device. The resistive switching device was fabricated in a structure of metal (Al)/DOPA-ZnO NPs+PVP (polyvinylphenol)/metal(ITO: Indium Tin Oxide). Resistive switching characteristics between ZnO NPs and DOPA-ZnO NPs devices were characterized and compared. This RS device can be further developed to form neuromorphic analog device, which can open up a bioelectronic device acting as memory and calculation elements.
Resistive switching characteristic with reduced graphene oxide biosensor
( Dhanashri Vitthal Desai ),이현호 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
Graphene is two-dimensional (2D) carbon, which has been known to be appropriate materials for electronics due to its fast electron transport, high chemical stability and strong mechanical strength. In addition, significant applications in biosensors have been continuously reported with the graphene and its related graphene oxide (GO). In this study, we demonstrated reduced graphene oxide (rGO) biosensor structure for cortisol sensing. The current versus voltage (I-V) curve could exhibit resistive switching (RS) characteristic with hysteresis behaviors, which demonstrated the possibility of another sensing mechanism. Therfore, this research will examine the feasibility of resistive switching device for biosensor application.