One-pot synthesis of silica-coated magnetic plasmonic tracer nanoparticles

被引:26
作者
Gole, Anand [1 ,2 ]
Agarwal, Nalini [1 ]
Nagaria, Pratik [3 ]
Wyatt, Michael D. [3 ]
Murphy, Catherine J. [1 ,2 ]
机构
[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA
[2] WM Keck Open Lab Bionanoparticle Technol Discover, Columbia, SC 29208 USA
[3] Univ S Carolina, S Carolina Coll Pharm, Dept Pharmaceut & Biomed Sci, Columbia, SC 29208 USA
关键词
D O I
10.1039/b814915a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We demonstrate a one-pot procedure to synthesize and embed silver nanoparticles inside silica shells together with iron oxide nanoparticles and Raman reporter molecules, followed by fluorophore attachment to the silica, to form a class of tracer nanoparticles suitable for biological and environmental applications.
引用
收藏
页码:6140 / 6142
页数:3
相关论文
共 37 条
[1]   Quantum dots as cellular probes [J].
Alivisatos, AP ;
Gu, WW ;
Larabell, C .
ANNUAL REVIEW OF BIOMEDICAL ENGINEERING, 2005, 7 :55-76
[2]   Optical barcoding of colloidal suspensions: applications in genomics, proteomics and drug discovery [J].
Battersby, BJ ;
Lawrie, GA ;
Johnston, APR ;
Trau, M .
CHEMICAL COMMUNICATIONS, 2002, (14) :1435-1441
[3]   Evaluation of quantum dot cytotoxicity based on intracellular uptake [J].
Chang, Emmanuel ;
Thekkek, Nadhi ;
Yu, William W. ;
Colvin, Vicki L. ;
Drezek, Rebekah .
SMALL, 2006, 2 (12) :1412-1417
[4]   Dependence of fluorescence intensity on the spectral overlap between fluorophores and plasmon resonant single silver nanoparticles [J].
Chen, Yeechi ;
Munechika, Keiko ;
Ginger, David S. .
NANO LETTERS, 2007, 7 (03) :690-696
[5]   Biocompatible heterostructured nanoparticles for multimodal biological detection [J].
Choi, Jin-sil ;
Jun, Young-wook ;
Yeon, Soo-In ;
Kim, Hyoung Chan ;
Shin, Jeon-Soo ;
Cheon, Jinwoo .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (50) :15982-15983
[6]   Gold nanoparticles are taken up by human cells but do not cause acute cytotoxicity [J].
Connor, EE ;
Mwamuka, J ;
Gole, A ;
Murphy, CJ ;
Wyatt, MD .
SMALL, 2005, 1 (03) :325-327
[7]   Multifunctional magnetic-fluorescent nanocomposites for biomedical applications [J].
Corr, Serena A. ;
Rakovich, Yury P. ;
Gun'ko, Yurii K. .
NANOSCALE RESEARCH LETTERS, 2008, 3 (03) :87-104
[8]  
Derfus AM, 2004, NANO LETT, V4, P11, DOI 10.1021/nl0347334
[9]   SERS as a foundation for nanoscale, optically detected biological labels [J].
Doering, William E. ;
Piotti, Marcelo E. ;
Natan, Michael J. ;
Freeman, R. Griffith .
ADVANCED MATERIALS, 2007, 19 (20) :3100-3108
[10]   Surface plasmon resonance scattering and absorption of anti-EGFR antibody conjugated gold nanoparticles in cancer diagnostics: Applications in oral cancer [J].
El-Sayed, IH ;
Huang, XH ;
El-Sayed, MA .
NANO LETTERS, 2005, 5 (05) :829-834