Synthesis of Ag/BSA composite nanospheres from water-in-oil microemulsion using compressed CO2 as antisolvent.
In this work, a novel route to synthesize biomolecule/metal composite nanospheres is proposed. This method combines the advantages that the silver nanoparticles and bovine serum albumin (BSA) can be precipitated simultaneously from water-in-oil microemulsion by the easy control of CO2 pressure, which was revealed by our high-pressure UV-VIS spectra. The Ag/BSA nanocomposites were successfully prepared using this method. The transmission electronic microscopy (TEM) if the obtained nanocomposites shows that the small-sized Ag nanaoparticles are immobilized by the BSA nanospheres, and the phase structure was characterized by X-ray diffraction (XRD). The Ag/BSA nanocomposites show absorption properties at a wavelength around 435 nm.
Zhang
Jianling
J
Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
Han
Buxing
B
Chen
Jing
J
Li
Zhonghao
Z
Liu
Zhimin
Z
Wu
Weize
W
D001672:Biocompatible Materials / Q000138:chemical synthesis; D002245:Carbon Dioxide / Q000737:chemistry*; D004655:Emulsions / Q000737:chemistry; D043942:Nanotubes / Q000737:chemistry*; D009821:Oils / Q000737:chemistry; D011312:Pressure; D012710:Serum Albumin, Bovine / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry
D001672:Biocompatible Materials; D004655:Emulsions; D009821:Oils; D012997:Solvents; D014867:Water; D002245:Carbon Dioxide; D012710:Serum Albumin, Bovine; D012834:Silver