Biossensores e Bioeletrônica

Recently graphen based nanocomposites are become an emerging research areas for fabrication of enzymatic biosensors due to their property of large surface area, conductivity and biocompatibility. This review summarizes recent research reports of graphen based nanocomposites for the fabrication of glucose and ethanol enzymatic biosensors. The newly fabricated enzyme free Microwave Treated Nitrogen Doped Graphen (MTN-d-GR) had provided highest sensitivity towards glucose and GCE/rGO/AuNPs/ADH composite had provided far highest sensitivity towards ethanol compared to other reported graphen based nanocomposites. The MWCNT/GO/ GOx and GCE/ErGO/PTH/ADH nanocomposites had also enhanced wide linear range for glucose and ethanol detection respectively.

Generally, graphen based nanocomposite enzymatic biosensors had fast direct electron transfer rate, highest sensitivity and wide linear detection ranges during glucose and ethanol sensing.

The objective of nanotechnology is to create nanodevices that are intelligent, versatile, incredibly tiny, extremely sensitive, and consume little power. With the help of a nanosensor, nanomaterials and nanofabrication technologies. The gadget is predicted to be compact in size and power consumption; consequently, the energy gathered from it may be used the atmosphere required to fuel such a system for wireless, self-sustaining operation The goal of self-powered nanotechnology at developing a self-powered, self-contained system, wirelessly and sustainably. It is highly desired for wireless devices and even required for implanted biomedical systems to be self-powered without using a battery, which not only can largely enhance the adaptability of the devices but also greatly reduce the size and weight of the system. Therefore, it is urgent to develop selfpowered nanotechnology that harvests energy from the environment for self-powering these nanodevices.