title: Multi-amine-grafted SBA-15 spherical nanoparticles for the adsorption of proteins.
abstract: Mesoporous silica spheres (SBA-15) have been obtained via a two-step synthesis process by using a triblock copolymer as a template in combination with a co-surfactant and co-solvent. Multi-amine-grafted mesoporous silicas were prepared by attaching 3-aminopropyl triethoxysilane, N-2(-aminoethyl)-3-aminopropyltrimethoxysilane and (3-trimethoxysilylpropyl)diethylenetriamine via a post-synthetic method. The proteins used in adsorption experiments include Bovine Serum Albumin (BSA), Lysozyme (LYS) and Myoglobin (MYO). The protein adsorption properties such as equilibrium and kinetics were investigated. The results show that the original SBA-15 samples have the highest adsorption capacity for all proteins due to their largest pore size and internal surface area.
authors.affiliation: Department of Chemical and Biochemical Engineering, Chosun University, Gwangju 501-759, Korea.
authors.forename: Sun-Il
authors.initials: SI
authors.lastname: Kim
authors.forename: Thi Tra
authors.initials: TT
authors.lastname: Pham
authors.forename: Jae-Wook
authors.initials: JW
authors.lastname: Lee
authors.forename: Sung-Hee
authors.initials: SH
authors.lastname: Roh
mesh_terms: D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D054118:Nanospheres / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011485:Protein Binding; D011506:Proteins / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000588:Amines; D046911:Macromolecular Substances; D011506:Proteins; C509969:SBA-15; D012822:Silicon Dioxide