CdS nanoparticles were prepared and modified with mercaptoacetic acid. The functionalized nanoparticles were water soluble and biocompatible and used as fluorescence probe in the determination of Human serum albumin(H...CdS nanoparticles were prepared and modified with mercaptoacetic acid. The functionalized nanoparticles were water soluble and biocompatible and used as fluorescence probe in the determination of Human serum albumin(HSA) and γ globulin( γ G). Under the optimal conditions, linear relationships were found between the enhanced intensity of fluorescence and the concentration of protein in the range of 0 2 and 3 5 μg/mL for HSA and 0 2 and 11 0 μg/mL for γ G. The limits of detection were 0 09 μg/mL for HSA and 0 18 μg/mL for γ G.展开更多
CdS nanoparticles with different sizes have been successfully synthesi zed by microwave-assisted solid state reaction between Cd(CH3COO)2·2H2O and Na2 S·9H2O at the presence of surfactant PEG400. The process...CdS nanoparticles with different sizes have been successfully synthesi zed by microwave-assisted solid state reaction between Cd(CH3COO)2·2H2O and Na2 S·9H2O at the presence of surfactant PEG400. The process of heating has influen ce on the crystallinity of CdS. The products were characterized by XRD, SEM, TEM , and the formation mechanism of CdS nanoparticles has also been discussed.展开更多
The CdS nanoparticles with good crystallinity were prepared by hydrothermal method in microemulsion composed of poly oxyethylene lauryl ether/water/ cyclohexane/butanol. The structure and the size of the nanoparticles...The CdS nanoparticles with good crystallinity were prepared by hydrothermal method in microemulsion composed of poly oxyethylene lauryl ether/water/ cyclohexane/butanol. The structure and the size of the nanoparticles were analyzed by TEM and XRD. The UV-Vis optical absorption of the samples was also investigated.The results show that hydrothermal treatment is an effective method to prepare CdS nanoparticles of hexagonal structure at low temperature. The particles were in dimensional uniformity. The diameter of the nanoparticles decreased with the increase of the molar ratio of water to surfactant. The minimum diameter of the nanoparticles prepared in this work was 10 nm. Obvious blue-shift were observed in the UV-Vis absorption.展开更多
文摘CdS nanoparticles were prepared and modified with mercaptoacetic acid. The functionalized nanoparticles were water soluble and biocompatible and used as fluorescence probe in the determination of Human serum albumin(HSA) and γ globulin( γ G). Under the optimal conditions, linear relationships were found between the enhanced intensity of fluorescence and the concentration of protein in the range of 0 2 and 3 5 μg/mL for HSA and 0 2 and 11 0 μg/mL for γ G. The limits of detection were 0 09 μg/mL for HSA and 0 18 μg/mL for γ G.
文摘CdS nanoparticles with different sizes have been successfully synthesi zed by microwave-assisted solid state reaction between Cd(CH3COO)2·2H2O and Na2 S·9H2O at the presence of surfactant PEG400. The process of heating has influen ce on the crystallinity of CdS. The products were characterized by XRD, SEM, TEM , and the formation mechanism of CdS nanoparticles has also been discussed.
文摘The CdS nanoparticles with good crystallinity were prepared by hydrothermal method in microemulsion composed of poly oxyethylene lauryl ether/water/ cyclohexane/butanol. The structure and the size of the nanoparticles were analyzed by TEM and XRD. The UV-Vis optical absorption of the samples was also investigated.The results show that hydrothermal treatment is an effective method to prepare CdS nanoparticles of hexagonal structure at low temperature. The particles were in dimensional uniformity. The diameter of the nanoparticles decreased with the increase of the molar ratio of water to surfactant. The minimum diameter of the nanoparticles prepared in this work was 10 nm. Obvious blue-shift were observed in the UV-Vis absorption.
