谢青, 胡巧云, 郑琼, 林子俺. Preparation of Ti4+ Immobilized Silica Nanocomposites and Their Application in Separation and Enrichment of Phosphoproteins[J]. 2019, 38(10): 1228-1233.
谢青, 胡巧云, 郑琼, 林子俺. Preparation of Ti4+ Immobilized Silica Nanocomposites and Their Application in Separation and Enrichment of Phosphoproteins[J]. 2019, 38(10): 1228-1233.DOI: doi:10.3969/j.issn.1004-4957.2019.10.011.
The Ti4+ immobilized silica nanocomposites(SiO2-Ti4+) were fabricated by synthesizing silica nanoparticles with tetraethoxysilane(TEOS) and γ-mercaptopropyl trimethoxysilane(γ-MPTS) as precursors
followed by “thiol-ene” click reaction and “one pot” process.The morphology and structure properties of the resultant SiO2-Ti4+ were characterized by transmission electronic microscopy(TEM)
Fourier transform infrared spectroscopy(FT-IR) and X ray photoelectron spectroscopy(XPS).The adsorption behavior of the SiO2-Ti4+ towards phosphoproteins was investigated.Under the optimized conditions
the SiO2-Ti4+ showed a rather higher adsorption capacity towards phosphoproteins(α-casein,12.27 μmol/g) than non phosphoproteins(horseradishperoxidase,1.12 μmol/g).In addition
the practicality of the SiO2-Ti4+ was further demonstrated by their selective enrichment of phosphoproteins from milk samples.