Optically trapped surface-enhanced Raman probes prepared by silver photoreduction to 3D microstructures

Vizsnyiczai, G., Lestyán, T., Joniova, J., Aekbote, B. L. , Strejčková, A., Ormos, P., Miskovsky, P., Kelemen, L. and Bánó, G. (2015) Optically trapped surface-enhanced Raman probes prepared by silver photoreduction to 3D microstructures. Langmuir, 31(36), pp. 10087-10093. (doi:10.1021/acs.langmuir.5b01210) (PMID:26292094)

Vizsnyiczai, G., Lestyán, T., Joniova, J., Aekbote, B. L. , Strejčková, A., Ormos, P., Miskovsky, P., Kelemen, L. and Bánó, G. (2015) Optically trapped surface-enhanced Raman probes prepared by silver photoreduction to 3D microstructures. Langmuir, 31(36), pp. 10087-10093. (doi:10.1021/acs.langmuir.5b01210) (PMID:26292094)

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Abstract

3D microstructures partially covered by silver nanoparticles have been developed and tested for surface-enhanced Raman spectroscopy (SERS) in combination with optical tweezers. The microstructures made by two-photon polymerization of SU-8 photoresist were manipulated in a dual beam optical trap. The active area of the structures was covered by a SERS-active silver layer using chemically assisted photoreduction from silver nitrate solutions. Silver layers of different grain size distributions were created by changing the photoreduction parameters and characterized by scanning electron microscopy. The structures were tested by measuring the SERS spectra of emodin and hypericin.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Aekbote, Dr Badri
Authors: Vizsnyiczai, G., Lestyán, T., Joniova, J., Aekbote, B. L., Strejčková, A., Ormos, P., Miskovsky, P., Kelemen, L., and Bánó, G.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Langmuir
Publisher:American Chemical Society
ISSN:0743-7463
ISSN (Online):1520-5827
Published Online:20 August 2015

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