Structure and activity assay of nanozymes prepared by the coimmobilization of practically useful enzymes and hydrophilic block copolymers on gold nanoparticles.
Enzyme/polymer/gold nanoparticle hybrids, called "nanozymes", were prepared and structurally analyzed by dynamic light scattering (DLS), ultraviolet-visible spectroscopy, and zeta-potential and transmission electron microscopy (TEM) measurements, which showed that the nanozyme particles were mainly composed of a single gold nanoparticle, on whose surface the enzyme and polymer were coimmobilized. This kind of structure resulted in the high dispersion stability of the nanozyme under various conditions, accompanied by improved thermal stability of the enzyme.
Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8753, Japan.
Xiaofei
X
Yuan
Michihiro
M
Iijima
Motoi
M
Oishi
Yukio
Y
Nagasaki
D016954:Acinetobacter calcoaceticus / Q000201:enzymology; D004800:Enzymes, Immobilized / Q000737:chemistry* / Q000378:metabolism / Q000648:ultrastructure; D005948:Glucose Dehydrogenases / Q000737:chemistry* / Q000378:metabolism* / Q000648:ultrastructure; D006046:Gold / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D011108:Polymers / Q000737:chemistry*; D020349:Surface Plasmon Resonance; D014867:Water / Q000737:chemistry*
D004800:Enzymes, Immobilized; D011108:Polymers; D014867:Water; D006046:Gold; D005948:Glucose Dehydrogenases; C033955:glucose dehydrogenase (pyrroloquinoline-quinone)