Next Article in Journal
Simultaneous Detection of Dopamine and Uric Acid Using a Poly(l-lysine)/Graphene Oxide Modified Electrode
Next Article in Special Issue
Two-Dimensional Semiconductor Optoelectronics Based on van der Waals Heterostructures
Previous Article in Journal
Detection of Prohibited Fish Drugs Using Silver Nanowires as Substrate for Surface-Enhanced Raman Scattering
Previous Article in Special Issue
Investigation of the Band Structure of Graphene-Based Plasmonic Photonic Crystals
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2016, 6(10), 176; doi:10.3390/nano6100176

Silver Nanoparticle-Embedded Thin Silica-Coated Graphene Oxide as an SERS Substrate

1
Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea
2
Department of Chemistry Education, Seoul National University, Seoul 151-742, Korea
3
School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Yuan Chen
Received: 13 June 2016 / Revised: 6 September 2016 / Accepted: 6 September 2016 / Published: 22 September 2016
(This article belongs to the Special Issue 2D Nanomaterials: Graphene and Beyond Graphene)
View Full-Text   |   Download PDF [1769 KB, uploaded 22 September 2016]   |  

Abstract

A hybrid of Ag nanoparticle (NP)-embedded thin silica-coated graphene oxide (GO@SiO2@Ag NPs) was prepared as a surface-enhanced Raman scattering (SERS) substrate. A 6 nm layer of silica was successfully coated on the surface of GO by the physical adsorption of sodium silicate, followed by the hydrolysis of 3-mercaptopropyl trimethoxysilane. Ag NPs were introduced onto the thin silica-coated graphene oxide by the reduction of Ag+ to prepare GO@SiO2@Ag NPs. The GO@SiO2@Ag NPs exhibited a 1.8-fold enhanced Raman signal compared to GO without a silica coating. The GO@SiO2@Ag NPs showed a detection limit of 4-mercaptobenzoic acid (4-MBA) at 0.74 μM. View Full-Text
Keywords: graphene oxide; silica coating; surface-enhanced Raman scattering (SERS); signal enhancement graphene oxide; silica coating; surface-enhanced Raman scattering (SERS); signal enhancement
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Pham, X.-H.; Hahm, E.; Kim, H.-M.; Shim, S.; Kim, T.H.; Jeong, D.H.; Lee, Y.-S.; Jun, B.-H. Silver Nanoparticle-Embedded Thin Silica-Coated Graphene Oxide as an SERS Substrate. Nanomaterials 2016, 6, 176.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top