1. The oxidation and reduction method is used to synthesize graphene to prepare graphene modified electrodes to detect the four bases of DNA. Electrochemical research has found that graphene modifiers can achieve the four bases of DNA at the same time. The graphene and carbon nanotubes and β-cyclic paste are compounded. The carbon nanotuba effectively reduces the gathering of graphene. For high -sensitivity testing for berin nucleoside, the modified electrode can be promoted and applied to the determination of other biomolecules.

2. The functionalization of biomolecular single-chain DNA (SSDNA) and graphene, and the prepared SSDNA-graphene composite materials can Stability. SSDNA-graphene composite material is larger than the surface area and has good biocompatibility. It is an excellent oxidation and restorease fixed material. Fix the SSDNA-graphene composite material to prepare glucose sensors for glucose oxidase. Glucose oxidase is realized directly electrochemical and maintains biological activity. The electronic transfer rate is 4.14S-1. It has good anti-interference and stability for glucose detection Essence

3. Use the in-situ synthesis of graphene-tetraonic oxide nano-composite materials. The tetraonic oxidation triangle increases the decentralization and stability of graphene in water. The three -iron nano composite material is magnetic. Preparation of graphene-tetraxide triangular modification electrodes, electrochemical research shows that graphene-tetraxide composite materials have a catalytic effect on hydrogen peroxide, with a minimum detection limit of 5.4 μmol·L-1, and anti-blood acid and uric acid have anti-resistance. Interference. Graphene-tetraoxide nano-composite materials have potential application prospects in the field of electrochemistry.