Abstract
We describe a novel surface-enhanced Raman scattering (SERS) tag that is based on Au/Ag core-shell nanostructures embedded with p-aminothiophenol. The Au/Ag core-shell sandwich nanostructures demonstrate bright and dark stripe structure and possess very strong SERS activity. Under optimum conditions, the maximum SERS signal was obtained with a 10 nm thick Ag nanoshell, and the enhancement factor is 3.4 × 104 at 1077 cm−1. After conjugation to the antibody of muramidase releasing protein (MRP), the Au/Ag core-shell nanostructures were successfully applied to an SERS-based detection scheme for MRP based on a sandwich type of immunoassay.
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Ung T, Liz-Marzán LM, Mulvaney P (1999) Redox catalysis using Ag@ SiO2 colloids. J Phys Chem B 103:6770
Saunders A, Popov I, Banin U (2006) Synthesis of hybrid CdS-Au colloidal nanostructures. J Phys Chem B 110:25421
Kamata K, Lu Y, Xia Y (2003) Synthesis and characterization of monodispersed core-shell spherical colloids with movable cores. J Am Chem Soc 125:2384
Hu JW, Zhang Y, Li JF, Liu Z, Ren B, Sun SG, Tian ZQ, Lian T (2005) Synthesis of Au@Pd core-shell nanoparticles with controllable size and their application in surface-enhanced Raman spectroscopy. Chem Phys Lett 408:354
Xu W, Xu S, Ji X, Song B, Yuan H, Ma L, Bai Y (2005) Preparation of gold colloid monolayer by immunological identification. Colloids Surf B 40:169
Cui Y, Ren B, Yao JL, Gu RA, Tian ZQ (2006) Synthesis of Ag core Au shell bimetallic nanoparticles for immunoassay based on surface-enhanced Raman spectroscopy. J Phys Chem B 110:4002
Bao F, Yao JL, Gu RA (2009) Synthesis of magnetic Fe2O3/Au core/shell nanoparticles for bioseparation and immunoassay based on surface-enhanced Raman spectroscopy. Langmuir 25:10782
Shao M, Lu L, Wang H, Luo S, Ma D (2009) Microfabrication of a new sensor based on silver and silicon nanomaterials, and its application to the enrichment and detection of bovine serum albumin via surface-enhanced Raman scattering. Microchim Acta 164:157
Kang T, Yoo S, Yoon I, Lee S, Kim B (2010) Patterned multiplex pathogen DNA detection by Au particle-on-wire SERS sensor. Nano Lett 10:1189
Knauer M, Ivleva N, Liu X, Niessner R, Haisch C (2010) Surface-enhanced Raman scattering-based label-free microarray readout for the detection of microorganisms. Anal Chem 82:2766
Wang F, Shen H, Feng J, Yang H (2006) PNA-modified magnetic nanoparticles and their hybridization with single-stranded DNA target: surface enhanced Raman scatterings study. Microchim Acta 153:15
Porter MD, Lipert RJ, Siperko LM, Wang G, Narayanana R (2008) SERS as a bioassay platform: fundamentals, design, and applications. Chem Soc Rev 37:1001
Alvarez-Puebla R, Liz-Marzán L (2010) SERS-based diagnosis and biodetection. Small 6:604
Lin CC, Yang YM, Chen YF, Yang TS, Chang HC (2008) A new protein a assay based on raman reporter labeled immunogold nanoparticles. Biosens Bioelectron 24:178
Lee S, Kim S, Choo J, Shin SY, Lee YH, Choi HY, Ha S, Kang K, Oh CH (2007) Biological imaging of HEK293 cells expressing PLC 1 using surface-enhanced Raman microscopy. Anal Chem 79:916
Kahraman M, Aydm Ö, Çulha M (2009) Oligonucleotide-mediated Au-Ag core-shell nanoparticles. Plasmonics 4:293
Yang Y, Shi J, Kawamura G, Nogami M (2008) Preparation of Au-Ag, Ag-Au core-shell bimetallic nanoparticles for surface-enhanced Raman scattering. Scr Mater 58:862
Cao Y, Jin R, Mirkin C (2001) DNA-modified core-shell Ag/Au nanoparticles. J Am Chem Soc 123:7961
Huang Y, Yang Y, Chen Z, Li X, Nogami M (2008) Fabricating Au-Ag core-shell composite films for surface-enhanced Raman scattering. J Mater Sci 43:5390
Lim DK, Kim IJ, Nam JM (2008) DNA-embedded Au/Ag core-shell nanoparticles. Chem Commun 42:5312
Staats JJ, Feder I, Okwumabua O, Chengappa MM (1997) Streptococcus suis: past and present. Vet Res Commun 21:381
Chu CY, Shu SF, Huang JH, Hsu JP, Xue KR (2009) Rapid detection of streptococcus suis serotypes and virulent factors in southern taiwan by multiplex polymerase chain reaction. Taiwan Vet J 35:107
Wu HM, Han HY, Jin ML, Zhang AD (2009) A novel method to detect muramidase released protein (MRP) antigen of streptococcus sui serotype 2 based on CdSe/ZnS quantum dot probe. Acta Chimi Sin 67:1087
Frens G (1973) Controlled nucleation for regulation of particle-size in monodisperse gold suspensions. Nat Phys Sci 241:20
Duan C, Meyerhoff ME (1994) Separation-free sandwich enzyme immunoassays using microporous gold electrodes and self-assembled monolayer/immobilized capture antibodies. Anal Chem 66:1369
Yakovleva J, Davidsson R, Lobanova A, Bengtsson M, Eremin S, Laurell T, Emneus J (2002) Microfluidic enzyme immunoassay using silicon microchip with immobilized antibodies and chemiluminescence detection. Anal Chem 74:2994
Jang S, Park J, Shin S, Yoon C, Choi BK, Gong MS, Joo SW (2004) Adsorption of 4-biphenylmethanethiolate on different-sized gold nanoparticle surfaces. Langmuir 20:1922
Mie G (1908) Beiträge zur optik trüber medien, speziell kolloidaler metallösungen. Ann Phys 25:377
Thanh NTK, Rosenzweig Z (2002) Development of an aggregation-based immunoassay for anti-protein A using gold nanoparticles. Anal Chem 74:1624
Kreibig U, Genzel L (1985) Optical absorption of small metallic particles. Surf Sci 156:678
Song C, Wang Z, Zhang R, Yang J, Tan X, Cui Y (2009) Highly sensitive immunoassay based on raman reporter-labeled immuno-Au aggregates and SERS-active immune substrate. Biosens Bioelectron 25:826
Rivas L, Sanchez-Cortes S, Garcia-Ramos JV, Morcillo G (2000) Mixed silver/gold colloids: a study of their formation, morphology, and surface-enhanced Raman activity. Langmuir 16:9722
Wang Y, Chen H, Dong S, Wang E (2006) Surface enhanced Raman scattering of p-aminothiophenol self-assembled monolayers in sandwich structure fabricated on glass. J Chem Phys 124:074709
Zhou Q, Li X, Fan Q, Zhang X, Zheng J (2006) Charge transfer between metal nanoparticles interconnected with a functionalized molecule probed by surface-enhanced Raman spectroscopy. Angew Chem Int Ed 45:3970
Osawa M, Matsuda N, Yoshii K, Uchida I (1994) Charge transfer resonance Raman process in surface-enhanced Raman scattering from p-aminothiophenol adsorbed on silver: Herzberg-teller contribution. J Phys Chem 98:12702
Wang Y, Zou X, Ren W, Wang W, Wang E (2007) Effect of silver nanoplates on Raman spectra of p-aminothiophenol assembled on smooth macroscopic gold and silver surface. J Phys Chem C 111:3259
Kim K, Yoon JK (2005) Raman scattering of 4-aminobenzenethiol sandwiched between Ag/Au nanoparticle and macroscopically smooth Au substrate. J Phys Chem B 109:20731
Hao E, Li S, Bailey RC, Zou S, Schatz GC, Hupp JT (2004) Optical properties of metal nanoshells. J Phys Chem B 108:1224
Kumar GVP, Shruthi S, Vibha B, Reddy B, Kundu T, Narayana C (2007) Hot spots in Ag core-Au shell nanoparticles potent for surface-enhanced raman scattering studies of biomolecules. J Phys Chem C 111:4388–4392
Zhang P, Guo Y (2009) Surface-enhanced raman scattering inside metal nanoshells. J Am Chem Soc 131:3808
Jiang Y, Wang A, Tian ZQ, Otto A (2009) Is it possible to observe surface-enhanced raman scattering from buried molecules? J Phys Chem C 113:5526
Orendorff CJ, Gole A, Sau TK, Murphy CJ (2005) Surface-enhanced Raman spectroscopy of self-assembled monolayers: sandwich architecture and nanoparticle shape dependence. Anal Chem 77:3261
Ren B, Lin XF, Yang ZL, Liu GK, Aroca RF, Mao BW, Tian ZQ (2003) Surface-enhanced Raman scattering in the ultraviolet spectral region: UV-SERS on rhodium and ruthenium electrodes. J Am Chem Soc 125:9598
Gole A, Sainkar SR, Sastry M (2000) Electrostatically controlled organization of carboxylic acid derivatized colloidal silver particles on amine-terminated self-assembled monolayers. Chem Mater 12:1234
Zhang DF, Niu LY, Jiang L, Yin PG, Sun LD, Zhang H, Zhang R, Guo L, Yan CH (2008) Branched gold nanochains facilitated by polyvinylpyrrolidone and their SERS effects on p-aminothiophenol. J Phys Chem C 112:16011
Acknowledgements
The authors gratefully acknowledge the support for this research by National Natural Science Foundation of China (20975042), the Program for academic pacesetter of Wuhan (200851430484), Nature Science foundation key project from Hubei Province of China (2008CDA080), International Science and Technology cooperation and Exchange Foundation (2008DFA40270) and the Fundamental Research Funds for the Central Universities of China (2009JC005).
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Luo, Z., Chen, K., Lu, D. et al. Synthesis of p-aminothiophenol-embedded gold/silver core-shell nanostructures as novel SERS tags for biosensing applications. Microchim Acta 173, 149–156 (2011). https://doi.org/10.1007/s00604-010-0537-4
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DOI: https://doi.org/10.1007/s00604-010-0537-4