國家衛生研究院 NHRI:Item 3990099045/5794
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    题名: One-pot tuning of au nucleation and growth: from nanoclusters to nanoparticles
    作者: Lai, SF;Chen, WC;Wang, CL;Chen, HH;Chen, ST;Chien, CC;Chen, YY;Hung, WT;Cai, X;Li, E;Kempson, IM;Hwu, Y;Yang, CS;Tok, ES;Tan, HR;Lin, M;Margaritondo, G
    贡献者: Center for Nanomedicine Research
    摘要: We describe a simple and effective method to obtain colloidal surface-functionalized Au nanoparticles. The method is primarily based on irradiation of a gold solution with high-flux X-rays from a synchrotron source in the presence of 11-mercaptoundecanoic acid (MUA). Extensive tests of the products demonstrated high colloidal density as well as excellent stability, shelf life, and biocompatibility. Specific tests with X-ray diffraction, UV–visible spectrometry, visible microscopy, Fourier transform infrared spectroscopy, dark-field visible-light scattering microscopy, and transmission electron microscopy demonstrated that MUA, being an effective surfactant, not only allows tunable size control of the nanoparticles, but also facilitates functionalization. The nanoparticle sizes were 6.45 ± 1.58, 1.83 ± 1.21, 1.52 ± 0.37 and 1.18 ± 0.26 nm with no MUA and with MUA-to-Au ratios of 1:2, 1:1, and 3:1. The MUA additionally enabled functionalization with l-glycine. We thus demonstrated flexibility in controlling the nanoparticle size over a large range with narrow size distribution.
    日期: 2011-07
    關聯: Langmuir. 2011 Jul;27(13):8424-8429.
    Link to: http://dx.doi.org/10.1021/la200861e
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0743-7463&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000292124000059
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79959778812
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