Conference proceeding
Development of surface-enhanced Raman scattering (SERS) substrates using nanoparticle-based printing inks
COLLOIDAL QUANTUM DOTS FOR BIOMEDICAL APPLICATIONS III, v 6866(1), pp 686610-686616
01 Jan 2008
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Raman spectroscopy is now a well-established analytical tool for obtaining rapid and compound specific information for chemical analysis. However, Raman scattering - inelastic scattering of photons - cross sections are typically of the order of 10(-30) cm(2) per molecule and thus Raman signals are usually weak. In Surface Enhanced Raman Scattering (SERS) the signals can be greatly amplified by using specially structured metallic (usually Ag, Au, and Cu) substrates. SERS substrates can be fabricated by a variety of methods. Here, we report a method for fabricating SERS substrates from commercially available silver nanoparticle based printing inks. For dilute inks (similar to 1-2% Ag by weight) the method involves the airbrushing of inks on heated (similar to 100 degrees C) quartz or polymer substrates followed by heating at 170 degrees C for about 20 minutes. The heating treatment removes the polymer coating used to prevent aggregation of Ag particles in the colloidal suspension and allows partial sintering of particles. More concentrated inks (similar to 20 - 30% Ag by weight) can be applied to various substrates at room temperature followed by the thermal treatment. SERS spectra of Rhodamine 6G, and beta-carotene molecules are reported. SERS amplification factors of more than 10(6) can be easily obtained reproducibly.
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Details
- Title
- Development of surface-enhanced Raman scattering (SERS) substrates using nanoparticle-based printing inks
- Creators
- Manuel A. Figueroa - Drexel UniversitySam Park - Drexel UniversityKambiz Pourrezaei - Drexel UniversitySomdev Tyagi - Drexel University
- Contributors
- M Osinski (Editor)T M Jovin (Editor)K Yamamoto (Editor)
- Publication Details
- COLLOIDAL QUANTUM DOTS FOR BIOMEDICAL APPLICATIONS III, v 6866(1), pp 686610-686616
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 6
- Grant note
- Nano-Technology Institute (NTI) of Southeastern Pennsylvania
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Physics; School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000256020800019
- Scopus ID
- 2-s2.0-43249122928
- Other Identifier
- 991019168359704721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Biomedical
- Optics