Shell-isolated nanoparticle-enhanced Raman Spectroscopy

4 Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy 

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Fig. 11.12 Examples of highly sensitive SERS substrate, (a) SERS-active gold-silver core-shell nano-dumbbells (GSNDs) [85] and (b) shell-isolated-nanoparticle-enhanced Raman spectroscopy (SHINERS) [50]...

Li JF, Huang YF, Ding Y, Yang ZL, Li SB, Zhou XS, Fan FR, Zhang W, Zhou ZY, Wu DY, Ren B, Wang ZL, Tian ZQ (2010) Shell-isolated nanoparticle-enhanced Raman spectroscopy. Nature 464 392-395... 

Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS)... 

The idea of TERS is to have a localized probe that, ideally, stimulates SERS but without perturbing the chemical system under study. This concept has been taken forward by Tian s group in recent work on silica- or alumina-coated Au nanoparticles in so-called shell-isolated nanoparticle-enhanced Raman spectroscopy, or SHINERS [208], The idea is that the thin (a few nanometers) silica or alumina coating renders the particles inert so that they can be scattered over the surface of interest to generate SERS signals without perturbing the surface chemistry, rather like a large random array of TERS tips. 

Honesty, N.R. and Gewirth, A.A. (2012) Shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS) investigation of benzotriazole film formation on Cu(lOO), Cu(lll), and Cu(poly). Journal of Raman Spectroscopy, 43, 46-50. 

Huang, Y.F., Li, C.Y., BroadweU, 1. et al. (2011) Shell-isolated nanoparticle-enhanced Raman spectroscopy of pyridine on smooth silver electrodes. Electrochimica Acta, 56, 10652-10657. 

Liu, B., Blaszczyk, A., Mayor, M. and Wandlowski, T. (2011) Redox-switching in a viologen-type adlayer an electrochemical shell-isolated nanoparticle enhanced Raman spectroscopy study on Au(lll)-(1 X 1) single crystal electrodes. ACS Nano, 5, 5662-5672. 

Qian, K., Liu, H.L., Yang, L.B. and Liu, J.H. (2012) Functionalized shell-isolated nanoparticle-enhanced Raman spectroscopy for selective detection of trinitrotoluene. Analyst, 137, 4644— 4646. 

Uzayisenga, V., Lin, X.D., Li, L.M. et al (2012) Synthesis, characterization, and 3D-FDTD simulation of AgOSiOj nanoparticles for shell-isolated nanoparticle-enhanced Raman spectroscopy. Langmuir, 28, 9140-9146. 

Although the core-shell method can significantly improve the SERS activity of transition metals, it did not break the limitation of the surface generality. Recently, Tian s group developed method by which SERS can be obtained from virtually any surface. They coated Au nanoparticles with ultrathin silica shells. The Au core provides Raman signal enhancement and the silica shell prevents the core from coming into direct contact with probe/ analyte molecules or the surface over which these particles are spread. They called this method shell-isolated nanoparticle-enhanced Raman spectroscopy shown in Fig. 12 (SHINERS). ... 

S.-Y. Ding, J. Yi, J.-F. Li and Z.-Q. Tian, A theoretical and experimental approach to shell-isolated nanoparticle-enhanced Raman spectroscopy of single-crystal electrodes. Surf. Set, 2015, 631, 73-80. 

Li, J. F. Huang, Y. R Ding, Y. et al. Shell-isolated nanoparticle-enhanced Raman spectroscopy. Nature 2010, 464, 392-395. 

J.F. Li, Z.Q. Tian, Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), in Frontiers of Surface-Enhanced Raman Scattering Single Narwparticles and Single Cells, ed. by Y. Ozaki, K. Kneipp, R. Aroca (Wiley, Chichester, 2014), pp. 163-192... 

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