Flexible ZnO nanocrystalline composite carbon fiber and oxidized graphene glucose detector and a preparation method thereof

Abstract

The invention discloses a flexible ZnO nanocrystal composite carbon fiber and graphene oxide glucose detector and a preparation method thereof. The sensor has carbon fiber, graphene oxide and ZnO nanocrystal layers sequentially from bottom to top. The preparation method is as follows: first prepare carbon fiber composite graphene oxide as a substrate, and then grow ZnO nanocrystals on it at a certain temperature to self-assemble into flexible ZnO nanocrystal composite carbon fibers and graphene oxide glucose detectors. Compared with traditional glucose detectors, this method has high response sensitivity, fast response time, flexibility, simple structure and low preparation cost, and has important application value in biology, medical treatment and some special fields.

Description

technical field

[0001] The invention relates to a flexible ZnO nanocrystalline composite carbon fiber and graphene oxide glucose detector and a preparation method thereof, belonging to the technical field of semiconductor devices. Background technique

[0002] A sensor is a class of devices that can recognize physical, chemical or biological changes and convert them into measurable signals. Biosensors are sensors specially used to detect biochemical small molecules, proteins, DNA, cells and even tissues. Biosensors are sensitive to biological substances and convert their concentrations into electrical signals for detection. At present, there is no glucose detector based on graphene oxide on the market.

[0003] ZnO is an important metal oxide semiconductor material with a band gap of 3.2eV at room temperature, simple synthesis steps, high catalytic activity, good chemical stability in solution and strong adaptability to substrate materials , so it is suitable as a materia...

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