In situ Preparation of Gold Nanoparticles of Varying Shape in Molecular Hydrogel of Peptide Amphiphiles
作者： Rajendra Narayan Mitra , Prasanta Kumar Das
DOI: 10.1021/JP712106D
关键词:
摘要: We have synthesized the gold nanoparticles (GNPs) of different shaped by in situ reduction within structure-directing low molecular weight gel template tryptophan-containing peptide amphiphiles water without using any external reducing or capping agents. Gold nanocrystals with sheet, wire, octahedral, and decahedral shapes were modulated help morphology supramolecular network. The at minimum gelation concentration is prime requirement to prepare such gold. also elucidated that seeding growth approach did not stimulating affect control shape GNPs. itself has capability. formation species aqueous solution was monitored UV−vis spectroscopy, transmission electron microscopy, X-ray diffraction studies. tryptophan-based hydrogelators are elegant hosts as templates for shape-contr...
acs.org
core.ac.uk 
sci-hub.se 参考文章(51)
Mostafa A. El-Sayed, Some interesting properties of metals confined in time and nanometer space of different shapes. Accounts of Chemical Research. ,vol. 34, pp. 257- 264 ,(2001) , 10.1021/AR960016N
Clemens Burda, Xiaobo Chen, Radha Narayanan, Mostafa A. El-Sayed, Chemistry and properties of nanocrystals of different shapes. Chemical Reviews. ,vol. 105, pp. 1025- 1102 ,(2005) , 10.1021/CR030063A
Yugang Sun, Younan Xia, Shape-Controlled Synthesis of Gold and Silver Nanoparticles Science. ,vol. 298, pp. 2176- 2179 ,(2002) , 10.1126/SCIENCE.1077229
PR Selvakannan, Saikat Mandal, Sumant Phadtare, Anand Gole, Renu Pasricha, SD Adyanthaya, Murali Sastry, None, Water-dispersible tryptophan-protected gold nanoparticles prepared by the spontaneous reduction of aqueous chloroaurate ions by the amino acid Journal of Colloid and Interface Science. ,vol. 269, pp. 97- 102 ,(2004) , 10.1016/S0021-9797(03)00616-7
Rajendra Narayan Mitra, Debapratim Das, Sangita Roy, Prasanta Kumar Das, Structure and properties of low molecular weight amphiphilic peptide hydrogelators. Journal of Physical Chemistry B. ,vol. 111, pp. 14107- 14113 ,(2007) , 10.1021/JP076495X
Nikhil R. Jana, Latha Gearheart, Catherine J. Murphy, Evidence for Seed-Mediated Nucleation in the Chemical Reduction of Gold Salts to Gold Nanoparticles Chemistry of Materials. ,vol. 13, pp. 2313- 2322 ,(2001) , 10.1021/CM000662N
A. Sánchez-Iglesias, I. Pastoriza-Santos, J. Pérez-Juste, B. Rodríguez-González, F. J. García de Abajo, L. M. Liz-Marzán, Synthesis and Optical Properties of Gold Nanodecahedra with Size Control Advanced Materials. ,vol. 18, pp. 2529- 2534 ,(2006) , 10.1002/ADMA.200600475
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
Kihyun Kwon, Kang Yeol Lee, Young Wook Lee, Minjung Kim, Jinhwa Heo, Sang Jung Ahn, Sang Woo Han, Controlled Synthesis of Icosahedral Gold Nanoparticles and Their Surface-Enhanced Raman Scattering Property Journal of Physical Chemistry C. ,vol. 111, pp. 1161- 1165 ,(2007) , 10.1021/JP064317I
Lehui Lu, Atsuko Kobayashi, Keiko Tawa, Yukihiro Ozaki, Silver Nanoplates with Special Shapes: Controlled Synthesis and Their Surface Plasmon Resonance and Surface-Enhanced Raman Scattering Properties Chemistry of Materials. ,vol. 18, pp. 4894- 4901 ,(2006) , 10.1021/CM0615875