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Báo cáo hóa học: " Direct Interaction Between Gold Nanorods and Glucose"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Direct Interaction Between Gold Nanorods and Glucose | Nanoscale Res Lett 2010 5 1658-1663 DOI 10.1007 s11671-010-9691-1 NANO EXPRESS Direct Interaction Between Gold Nanorods and Glucose Xiangling Ren Liuqing Yang Jun Ren Fangqiong Tang Received 21 June 2010 Accepted 1 July 2010 Published online 13 July 2010 The Author s 2010. This article is published with open access at Springerlink.com Abstract In this work we present the results of the study on the interactions between gold nanorods GNRs and glucose. The optical properties of GNRs have higher sensitivity to glucose compared with that of gold nanospheres. The long-wavelength bands of the GNRs obviously decrease as the concentration of glucose increases. At high glucose concentrations the absorption peak in long-wavelength bands almost disappears and the absorption intensities corresponding to the transverse plasmon band are also decrease. These results suggest that glucose could seriously affect the optical properties of GNRs. A possible interaction mechanism between gold nanorods GNRs and glucose has been proposed. Furthermore the influence of glucose on different amount GNRs also has been studied. Keywords Gold nanorods Glucose Interaction UV-vis spectra Introduction Nanometer-size noble metallic low-dimensional structures have received much attention in recent years due to their special electronic and optical properties 1-3 . Currently there is a great deal of interest in metallic nanorods due to X. Ren L. Yang J. Ren F. Tang Laboratory of Controllable Preparation and Application of Nanomaterials Technical Institute of Physics and Chemistry Chinese Academy of Sciences 100190 Beijing People s Republic of China e-mail tangfq@mail.ipc.ac.cn L. Yang Graduate School of the Chinese Academy of Sciences 100049 Beijing People s Republic of China 0 Springer their shape-dependent optoelectronic properties. Among various 1-D metallic nanostructures gold nanorods GNRs are of particular importance owing to their tunable surface plasmon resonance properties 4 . In addition .