Abstract
We report for the first time, on the utility of plant-based biomaterial as enhanced-Raman scattering probes. The bio-substrate used in this study are commonly found in plant extracts, and are cost-effective, mechanically robust, flexible and easily transportable. The probe was fabricated by coating the plant extract with gold nanoparticles and characterized. By employing a ‘single-touch contact’ method, we reveal the ability of these probes to detect routinely used Raman markers such as 2-napthalenethiol and rhodamine B, at nano-molar concentrations, in dry and liquid forms, respectively. Reproducibility of the signals with variation <5%, and the ability to detect biomolecules are demonstrated herein. We envision these bio-probes as potential candidates for enhanced Raman sensing in chemical, environmental, and archaeological applications. By further engineering the shape, morphology, and surface chemistry of these micro-probes, we foresee their utility as miniaturized, natural SERS substrates.
References
Andrea C D, Neri F, Ossi P M, Santo N and Trusso S 2009 Nanotechnology 20 245606
Aroca R 2006 Surface-enhanced vibrational spectroscopy (Chichester, UK: John Wiley & Sons)
Bhuvana T and Kulkarni G U 2009 Nanotechnology 20 045504
Claro F and Rojas R 1993 J. Phys.: Condens. Matter 5 A187
Cui B, Clime L, Li K and Veres T 2008 Nanotechnology 19 145302
De Angelis F, Patrini M, Das G, Maksymov I, Galli M, Businaro L, Andreani L C and Di Fabrizio E 2008 Nano Lett. 8 2321
Garrett N L, Vukusic P, Ogrin F, Sirotkin E, Winlove C P and Moger J 2009 J. Biophoton. 2 157
Haes A J and Van Duyne R P 2002 J. Am. Chem. Soc. 124 10596
Haynes C L and Van Duyne R P 2001 J. Phys. Chem. B105 5599
Jackson J B and Halas N J 2004 Proc. Nat. Acad. Sci. USA 101 17930
Jensen T R, Malinsky M D, Haynes C L and Van Duyne R P 2000 J. Phys. Chem. B104 10549
Kneipp K, Moskovits M and Kneipp H (eds) 2006 Surface-enhanced Raman scattering: Physics and applications (Berlin, Heidelberg: Springer-Verlag)
Lal S, Link S and Halas N J 2007 Nature Photonics 1 641
Le Ru E C and Etchegoin P G 2009 Principles of surface-enhanced Raman spectroscopy and related plasmonic effects (Amsterdam: Elsevier)
Le F, Brandl D W, Urzhumov Y A, Wang H, Kundu J, Halas N J, Aizpurua J and Nordlander P 2008 Acs Nano 2 707
Lee D W 2009 Plant tissue optics: micro- and nanostructures. Biomimetics and Bioinspiration (San Diego, CA: SPIE) p. 740104
Linn N C, Sun C-H, Arya A, Jiang P and Jiang B 2009 Nanotechnology 20 225303
Liu Y J, Fan J G, Zhao Y P, Shanmukh S and Dluhy R A 2006 Appl. Phys. Lett. 89 173134
Moskovits M 1985 Rev. Mod. Phys. 57 783
Smith L G and Oppenheimer D G 2005 Ann. Rev. Cell Dev. Bio. 21 271
Szymanski D B, Jilk R A, Pollock S M and Marks M D 1998 Development 125 1161
West J L and Halas N J 2003 Ann. Rev. Biomed. Eng. 5 285
Whitney A V, Elam J W, Stair P C and Van Duyne R P 2007 J. Phys. Chem. C111 16827
Willets K A and Van Duyne R P 2007 Ann. Rev. Phys. Chem. 58 267
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KUMAR, G.V.P. Gold nanoparticle-coated biomaterial as SERS micro-probes. Bull Mater Sci 34, 417–422 (2011). https://doi.org/10.1007/s12034-011-0121-5
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DOI: https://doi.org/10.1007/s12034-011-0121-5