Colloidal Au and Au/Ag nanoparticles prepared by laser ablation in liquid as a substrate of surface enhanced Raman scattering (SERS) in ascorbic acid detection

2020 ◽  
Author(s):  
Yuliati Herbani ◽  
Isnaeni ◽  
Irmaniar ◽  
Mohammad Rifqi Ihsan ◽  
Yudha Pratama Putra ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Laser Ablation ◽  
Raman Scattering ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Laser Ablation In Liquid ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Ascorbic Acid Detection

scholarly journals Surface-enhanced Raman Scattering (SERS) Substrate of Colloidal Ag Nanoparticles Prepared by Laser Ablation for Ascorbic Acid Detection

Molekul ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 48 ◽  
Author(s):  
Teguh Endah Saraswati ◽  
Yudha Pratama Putra ◽  
Mohammad Rifqi Ihsan ◽  
Isnaeni Isnaeni ◽  
Yuliati Herbani
Keyword(s):  
Ascorbic Acid ◽  
Laser Ablation ◽  
Raman Scattering ◽  
Incubation Time ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Ag nanoparticles were synthesized by laser ablation using an Ag plate in distilled water. This method was performed using a laser with a wavelength of 532 nm and energy of 30 mJ for 60 min. Ag nanoparticles successfully formed, confirmed by the selected area electron diffraction (SAED) which revealed four principal crystal planes of (111), (200), (220) and (311). The size distribution of Ag nanoparticles ranged from 5 to 40 nm, as estimated from electron imaging observed by transmission electron microscope (TEM). Ascorbic acid was used as the analyte to test the characteristics of surface-enhanced Raman scattering (SERS) of colloidal Ag nanoparticles. The concentration of ascorbic acid (1.0, 0.5 and 0.25 wt%) and incubation time (0 and 6 h) were varied to determine the limit of detection and the effect of incubation time. The Raman scattering spectroscopy results showed that the colloidal Ag nanoparticle substrate improved the signals for detection of ascorbic acid.

Surface-Enhanced Raman Scattering Using Silver Nanoparticles Produced by Laser Ablation in Liquid

2015 ◽  
Vol 477 (1) ◽  
pp. 54-62 ◽  
Author(s):  
M. S. Nebogatikov ◽  
V. Ya. Shur ◽  
A. E. Tyurnina ◽  
R. V. Kozin ◽  
V. Yu. Sukhanova ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Laser Ablation In Liquid ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Development of Effectual Substrates for SERS by Nanostructures-on flexible surfaces

2021 ◽  
Vol 2114 (1) ◽  
pp. 012084
Author(s):  
Hammad R. Humud ◽  
Fatimah Jumaah Moaen
Keyword(s):  
Raman Scattering ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Wave Number ◽  
Plasmonic Nanostructures ◽  
Sers Substrate ◽  
Two Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Abstract The current study examines recent advancements in surface-enhanced Raman scattering (SERS), a technique that employs flexible surfaces as an active substrate, this surfaces consist from two-dimensional thermo-plasmonic grating. With 53 nm Au layer (was deposited on the 2D grating structure of the PDMS by the PVD method). The explosive wire technique was used to preparing Ag nanoparticles that were used for the purpose of SERS. The effect of the plasmonic nanostructures on the absorption spectra and Surface - Enhanced Raman Scattering (SERS) activities was examined. Rhodamine 6G dye was used as a probe molecule. X-Ray diffraction (XRD) was used to examine the structural characteristics of the nanoparticles. The morphology was assessed using Field Emission Scanning Electron Microscopy(FESEM). A twin beam UV-Vis Spectrophotometer was used to measure the absorption of the combined Rh6G dye (concentration 1×10“–6M) with the nanostructures. a Sunshine Raman microscope system and a 50mm objective lens, used for investigating the Raman spectra of the Rh6G combined with nanostructures. The results showed that the enhancement factor (EF) for SERS of R6G (1×M) reached to (2.2×10 3) When using Ag nanoparticles and (0.08 × 103) when R6G deposited directly on the flexible substrates without nanostructures at the wave number (1650 cm−1), we produced a recyclable, homogeneous, and highly sensitive SERS substrate with dependable reproducibility. For the SERS substrate, a surface made up of two-dimensional (2D) flexible grating substrates was chosen to provide multiple modalities in electrical and medicinal applications.

Sign in / Sign up

Export Citation Format

Share Document