Title: Detection of creatinine on triangular silver nanoplates surface using surface-enhanced Raman scattering sensor

Authors: Norhayati Abu Bakar; Muhamad Mat Salleh; Akrajas Ali Umar

Addresses: Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia ' Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia ' Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

Abstract: In this study, we attempt to detect various concentrations of creatinine molecules on the triangular silver nanoplate films surface using a self-build surface-enhanced Raman scattering (SERS) sensor. The SERS sensor system consists of a butterfly laser diode, Inphotonic Raman fibre, Ocean Optics spectrophotometer and sensor chamber to contain the creatinine sample. Triangular-shaped silver nanoplate films were prepared on quartz surface by self-assembly technique. Detection of creatinine was done by irradiating creatinine on the triangular nanoplates surface using 785 nm of the laser light. It was found that the enhancement of the creatinine Raman peaks is linear with the creatinine concentrations. The lowest creatinine concentration that was detected by this SERS sensor is 0.005 M.

Keywords: creatinine; triangular silver nanoplates; surface-enhanced Raman scattering; SERS; self-assembly.

DOI: 10.1504/IJBNN.2017.085452

International Journal of Biomedical Nanoscience and Nanotechnology, 2017 Vol.3 No.4, pp.335 - 342

Received: 31 Aug 2016
Accepted: 17 Feb 2017
Published online: 26 Jul 2017 *

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