Seed-Mediated Synthesis of Gold Nanorods at Low Concentrations of CTAB.
作者： Tian-Song Deng , Ming-Zhang Wei , Qi Zhang , Zhiqun Cheng , Shiqi Li
关键词: Materials science 、 Seed mediated 、 Nanomaterials 、 Nanoparticle 、 Chemical engineering 、 Volume concentration 、 Hexadecyltrimethylammonium bromide 、 Nanorod 、 Spectroscopy 、 Transmission electron microscopy
摘要: Although gold nanorods capped with hexadecyltrimethylammonium bromide (CTAB) have been prepared through the seed-mediated method for their use in diagnostics and therapeutics, toxicity of AuNRs@CTAB limits practical applications biomedical field. In this work, synthesis tuning at very low concentrations CTAB (as as 0.008 M) was successfully achieved by using method. Furthermore, we managed to optimize growth conditions changing amount seeds, AgNO3, and/or HCl. At concentrations, tunable size aspect ratio, high monodispersity, purity were obtained studied UV-vis spectroscopy, transmission electron microscopy, Mie-Gans theoretical calculations. This work revealed a nanoparticle that may be extended synthesize other nanomaterials such Ag, Cu, Pd, Pt concentrations.
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sci-hub.st 参考文章(45)
Gilles Berhault, Marta Bausach, Laure Bisson, Loïc Becerra, Cécile Thomazeau, Denis Uzio, Seed-Mediated Synthesis of Pd Nanocrystals: Factors Influencing a Kinetic- or Thermodynamic-Controlled Growth Regime Journal of Physical Chemistry C. ,vol. 111, pp. 5915- 5925 ,(2007) , 10.1021/JP0702752
Szu-Han Wu, Dong-Hwang Chen, Synthesis of high-concentration Cu nanoparticles in aqueous CTAB solutions joint international conference on information sciences. ,vol. 273, pp. 165- 169 ,(2004) , 10.1016/J.JCIS.2004.01.071
Rina Guadagnini, Kevin Moreau, Salik Hussain, Francelyne Marano, Sonja Boland, Toxicity evaluation of engineered nanoparticles for medical applications using pulmonary epithelial cells Nanotoxicology. ,vol. 9, pp. 25- 32 ,(2015) , 10.3109/17435390.2013.855830
Ivan Gorelikov, Naomi Matsuura, Single-Step Coating of Mesoporous Silica on Cetyltrimethyl Ammonium Bromide-Capped Nanoparticles Nano Letters. ,vol. 8, pp. 369- 373 ,(2008) , 10.1021/NL0727415
N. R. Jana, L. Gearheart, C. J. Murphy, Seed‐Mediated Growth Approach for Shape‐Controlled Synthesis of Spheroidal and Rod‐like Gold Nanoparticles Using a Surfactant Template Advanced Materials. ,vol. 13, pp. 1389- 1393 ,(2001) , 10.1002/1521-4095(200109)13:18<1389::AID-ADMA1389>3.0.CO;2-F
Z.L. Wang, M.B. Mohamed, S. Link, M.A. El-Sayed, Crystallographic facets and shapes of gold nanorods of different aspect ratios Surface Science. ,vol. 440, ,(1999) , 10.1016/S0039-6028(99)00865-1
Emma Kathryn Payne, Kevin L. Shuford, Sungho Park, George C. Schatz, Chad A. Mirkin, Multipole plasmon resonances in gold nanorods Journal of Physical Chemistry B. ,vol. 110, pp. 2150- 2154 ,(2006) , 10.1021/JP056606X
Babak Nikoobakht, Mostafa A. El-Sayed, Preparation and Growth Mechanism of Gold Nanorods (NRs) Using Seed-Mediated Growth Method Chemistry of Materials. ,vol. 15, pp. 1957- 1962 ,(2003) , 10.1021/CM020732L
Zaheer Khan, Shaeel Ahmed Al-Thabaiti, Abdullah Yousif Obaid, A.O. Al-Youbi, Preparation and characterization of silver nanoparticles by chemical reduction method Colloids and Surfaces B: Biointerfaces. ,vol. 82, pp. 513- 517 ,(2011) , 10.1016/J.COLSURFB.2010.10.008
Xingchen Ye, Yuzhi Gao, Jun Chen, Danielle C. Reifsnyder, Chen Zheng, Christopher B. Murray, Seeded Growth of Monodisperse Gold Nanorods Using Bromide-Free Surfactant Mixtures Nano Letters. ,vol. 13, pp. 2163- 2171 ,(2013) , 10.1021/NL400653S