Laccase biosensor based on magnetic carbon nano tube and chitosan/silicon dioxide gel and preparation method and application thereof
A magnetic carbon nanotube and biosensor technology, applied in the field of biosensors, can solve the problems of being easily affected by turbidity and light interference substances, cumbersome pretreatment of samples, affecting enzyme activity, etc., and achieve excellent electron transfer ability and excellent biocompatibility. the effect of improving the transfer speed
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Embodiment 1
[0047] Laccase biosensor and its preparation
[0048] a kind of like figure 1 , figure 2 The shown laccase biosensor based on magnetic carbon nanotubes and chitosan / silica gel of the present invention includes a magnetic carbon paste electrode 1, and the electrode surface of the magnetic carbon paste electrode 1 is modified with a magnetic carbon nanotube layer 2. Laccase 3 is adsorbed on the surface of the magnetic carbon nanotube layer 2 , and the laccase 3 is wrapped with a chitosan-silicon dioxide composite film 4 . Magnetic carbon paste electrode 1 comprises polytetrafluoroethylene tube 11, carbon rod 12, magnet 13 (cylindrical, thick 2mm, outer diameter is 6mm) and lead 14, polytetrafluoroethylene tube 11 comprises body 111 (high 4.5cm, The inner diameter of the tube is 8 mm) and the rotatable cap 112 arranged on the top of the tube body 111. The rotatable cap 112 is connected with the tube body 111 through a neck 113 (1 cm high, and the inner diameter is 4 mm). In t...
Embodiment 2
[0067] Applications of Laccase Biosensors
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