naa a22 4500 510816320 CHVBK 20180411083509.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11468-013-9574-2 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9574-2 Plasmonic Biosensor Based on Triangular Au/Ag and Au/Ag/Au Core/Shell Nanoprisms onto Indium Tin Oxide Glass [Elektronische Daten] [Peipei Dong, Yiting Wu, Wenying Guo, Junwei Di] Gold-silver core-shell triangular nanoprisms (Au/AgTNPs) were grown onto transparent indium tin oxide (ITO) thin film-coated glass substrate through a seed-mediated growth method without using peculiar binder molecules. The resulting Au/AgTNPs were characterized by scanning electron microscopy, atomic force microscopy, X-ray diffraction, UV-vis spectroscopy, and cyclic voltammograms. The peak of dipolar plasmonic resonance was located at near infrared region of ∼700nm, which showed the refractive index (RI) sensitivity of 248nm/RIU. Moreover, thin gold shells were electrodeposited onto the surface of Au/AgTNPs in order to stabilize nanoparticles. Compared with the Au/AgTNPs, this peak of localized surface plasmon resonance (LSPR) was a little red-shift and decreased slightly in intensity. The refractive index sensitivity was estimated to be 287nm/RIU, which showed high sensitivity as a LSPR sensing platform. Those triangular nanoprisms deposited on the ITO substrate could be further functionalized to fabricate LSPR biosensors. Results of this research show a possibility of improving LSPR sensor by using core-shell nanostructures. Springer Science+Business Media New York, 2013 Localized surface plasmon resonance nationallicence Gold and silver nationallicence Core-shell nanostructures nationallicence Triangular nanoprisms nationallicence LSPR biosensor nationallicence Dong Peipei The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut Wu Yiting The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut Guo Wenying The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut Di Junwei The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1577-1583 1557-1955 8:4<1577 2013 8 11468 https://doi.org/10.1007/s11468-013-9574-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9574-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dong Peipei The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut NATIONALLICENCE 700 1- Wu Yiting The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut NATIONALLICENCE 700 1- Guo Wenying The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut NATIONALLICENCE 700 1- Di Junwei The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, 215123, Suzhou, Jiangsu, People's Republic of China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1577-1583 1557-1955 8:4<1577 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer