A novel bovine serum albumin (BSA) imprinted Mn-doped ZnS quantum dots (Mn:ZnS QDs) is firstly reported. The molecular imprinted polymer (MIP) functionalized Mn:ZnS QDs (Mn:ZnS @SiO2@MIP) include the prepar...A novel bovine serum albumin (BSA) imprinted Mn-doped ZnS quantum dots (Mn:ZnS QDs) is firstly reported. The molecular imprinted polymer (MIP) functionalized Mn:ZnS QDs (Mn:ZnS @SiO2@MIP) include the preparation of Mn:ZnS QDs, the coating of silica on the surface of Mn:ZnS QDs, and the functional polymerization by sol-gel reaction using 3-aminophenylboronic acid as the functional and cross-linking monomer in the presence of BSA (Mn:ZnS@SiO2@MIP-BSA), and then the elution of the imprinted BSA on the surface of Mn:ZnS@SiO2 QDs. The results showed that the phosphorescence of Mn:ZnS@SiO2@MIP is stronger quenched by BSA than that of non-imprinted one (Mn:ZnS@SiO2@NIP), indicating that the selectivity of the imprinted Mn:ZnS quantum dots toward BSA is superior to that of non-imprinted one.展开更多
A simple one-bath strategy has been developed to synthesize a novel CdTe@SiO_2@MIP(molecularly imprinted and silica-functionalized CdTe quantum dots,MISFQDs),in which a silica shell was coated on the surface of CdTe...A simple one-bath strategy has been developed to synthesize a novel CdTe@SiO_2@MIP(molecularly imprinted and silica-functionalized CdTe quantum dots,MISFQDs),in which a silica shell was coated on the surface of CdTe quantum dots (CdTe@SiO_2 QDs) and then a polymer for selective recognition of 4-chlorophenol(4-CP) was constructed on the surface of CdTe@SiO_2 QDs using mercaptoacetic acid as stabilizer,3-aminopropyl-trimethoxysilane(APTES) as functional monomers and tetraethoxysilane(TEOS) as crosslink agent.The structures of CdTe@SiO_2@MIP were analyzed by ultraviolet-visible absorption. Fluorescence,FT-IR spectrum and powder X-ray diffraction.The application and characterization of the CdTe@SiO_2@MIP were investigated by experiments.All results indicated that the CdTe@SiO_2@MIP can selectively recognize 4-chlorophenol.展开更多
基金financial support from the Hubei Science Foundation(No.2010CDA061)
文摘A novel bovine serum albumin (BSA) imprinted Mn-doped ZnS quantum dots (Mn:ZnS QDs) is firstly reported. The molecular imprinted polymer (MIP) functionalized Mn:ZnS QDs (Mn:ZnS @SiO2@MIP) include the preparation of Mn:ZnS QDs, the coating of silica on the surface of Mn:ZnS QDs, and the functional polymerization by sol-gel reaction using 3-aminophenylboronic acid as the functional and cross-linking monomer in the presence of BSA (Mn:ZnS@SiO2@MIP-BSA), and then the elution of the imprinted BSA on the surface of Mn:ZnS@SiO2 QDs. The results showed that the phosphorescence of Mn:ZnS@SiO2@MIP is stronger quenched by BSA than that of non-imprinted one (Mn:ZnS@SiO2@NIP), indicating that the selectivity of the imprinted Mn:ZnS quantum dots toward BSA is superior to that of non-imprinted one.
基金the financial support from the Hubei Science Foundation(No.2010CDA061)the Science Foundation of the Education Department of Hubei Province(No.D200922005)
文摘A simple one-bath strategy has been developed to synthesize a novel CdTe@SiO_2@MIP(molecularly imprinted and silica-functionalized CdTe quantum dots,MISFQDs),in which a silica shell was coated on the surface of CdTe quantum dots (CdTe@SiO_2 QDs) and then a polymer for selective recognition of 4-chlorophenol(4-CP) was constructed on the surface of CdTe@SiO_2 QDs using mercaptoacetic acid as stabilizer,3-aminopropyl-trimethoxysilane(APTES) as functional monomers and tetraethoxysilane(TEOS) as crosslink agent.The structures of CdTe@SiO_2@MIP were analyzed by ultraviolet-visible absorption. Fluorescence,FT-IR spectrum and powder X-ray diffraction.The application and characterization of the CdTe@SiO_2@MIP were investigated by experiments.All results indicated that the CdTe@SiO_2@MIP can selectively recognize 4-chlorophenol.