Chemically isolating hot spots on concave nanocubes.

作者: Matthew Rycenga , Mark R. Langille , Michelle L. Personick , Tuncay Ozel , Chad A. Mirkin

DOI: 10.1021/NL3032235

关键词:

摘要: We report a simple and general strategy for selectively exposing functionalizing the sharp corners of concave nanocubes, which are SERS hot spots such structures. This takes advantage unique shape cubes by coating particles with silica then etching it away to expose only corner regions, while maintaining in faces. These regions can be modified improved enhancement signal response SERS.

参考文章(37)
S. C. Glotzer, Some Assembly Required Science. ,vol. 306, pp. 419- 420 ,(2004) , 10.1126/SCIENCE.1099988
Mei Li, Heimo Schnablegger, Stephen Mann, Coupled synthesis and self-assembly of nanoparticles to give structures with controlled organization Nature. ,vol. 402, pp. 393- 395 ,(1999) , 10.1038/46509
Michelle L. Personick, Mark R. Langille, Jian Zhang, Nadine Harris, George C. Schatz, Chad A. Mirkin, Synthesis and isolation of {110}-faceted gold bipyramids and rhombic dodecahedra. Journal of the American Chemical Society. ,vol. 133, pp. 6170- 6173 ,(2011) , 10.1021/JA201826R
Yugang Sun, Younan Xia, Shape-Controlled Synthesis of Gold and Silver Nanoparticles Science. ,vol. 298, pp. 2176- 2179 ,(2002) , 10.1126/SCIENCE.1077229
Sharon C. Glotzer, Michael J. Solomon, Anisotropy of building blocks and their assembly into complex structures Nature Materials. ,vol. 6, pp. 557- 562 ,(2007) , 10.1038/NMAT1949
Jill E. Millstone, Sungho Park, Kevin L. Shuford, Lidong Qin, George C. Schatz, Chad A. Mirkin, Observation of a quadrupole plasmon mode for a colloidal solution of gold nanoprisms. Journal of the American Chemical Society. ,vol. 127, pp. 5312- 5313 ,(2005) , 10.1021/JA043245A
Yugang Sun, Byron Gates, Brian Mayers, Younan Xia, Crystalline Silver Nanowires by Soft Solution Processing Nano Letters. ,vol. 2, pp. 165- 168 ,(2002) , 10.1021/NL010093Y
Matthew Rycenga, Joseph M. McLellan, Younan Xia, Controlling the Assembly of Silver Nanocubes through Selective Functionalization of Their Faces Advanced Materials. ,vol. 20, pp. 2416- 2420 ,(2008) , 10.1002/ADMA.200800360
Mark R. Langille, Michelle L. Personick, Jian Zhang, Chad A. Mirkin, Bottom-up synthesis of gold octahedra with tailorable hollow features. Journal of the American Chemical Society. ,vol. 133, pp. 10414- 10417 ,(2011) , 10.1021/JA204375D
Benjamin J. Wiley, Zenghui Wang, Jiang Wei, Yadong Yin, David H. Cobden, Younan Xia, Synthesis and electrical characterization of silver nanobeams. Nano Letters. ,vol. 6, pp. 2273- 2278 ,(2006) , 10.1021/NL061705N