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Synthesis of a low-cost, stable, silicon-based SERS substrate for rapid, nondestructive biosensing.
- Source :
-
Optik - International Journal for Light & Electron Optics . 2019, Vol. 192, pN.PAG-N.PAG. 1p. - Publication Year :
- 2019
-
Abstract
- Uniform, low-cost, surface-enhanced Raman scattering (SERS) active substrates were prepared by sputtering silver onto porous silicon (pSi) fabricated by an electrochemical etching method. The resulting Ag/pSi SERS substrates were characterized by scanning electron microscopy (SEM), and the SERS effect of the substrates was investigated using rhodamine 6G (R6G) as a probe. Furthermore, the signal uniformity of the Ag/pSi SERS substrates was confirmed through mapping measurements. The Ag/pSi SERS substrates exhibited uniform shape and size and stable SERS activity. Then, we demonstrated the capacity of the prepared silicon-based SERS substrates for detecting bovine serum albumin (BSA) and serum samples. Therefore, our Ag/pSi SERS substrates can be easily employed in practical applications to effectively assess healthcare. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POROUS silicon
*SERUM albumin
*RAMAN scattering
*SCANNING electron microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 00304026
- Volume :
- 192
- Database :
- Academic Search Index
- Journal :
- Optik - International Journal for Light & Electron Optics
- Publication Type :
- Academic Journal
- Accession number :
- 138572252
- Full Text :
- https://doi.org/10.1016/j.ijleo.2019.162959