Detection of complex molecular samples by low-cost surface enhanced raman spectroscopy (SERS) substrate

2017 ◽  
Author(s):  
Hsuan-Chao Hou ◽  
Yaser Mohammadi Banadaki ◽  
Safura Sharifi
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Cost Surface ◽  
Surface Enhanced Raman

ZnO oxide films for ultrasensitive, rapid, and label-free detection of neopterin by surface-enhanced Raman spectroscopy

The Analyst ◽  
2015 ◽  
Vol 140 (15) ◽  
pp. 5090-5098 ◽  
Author(s):  
Agnieszka Kamińska ◽  
Aneta Aniela Kowalska ◽  
Dmytro Snigurenko ◽  
Elżbieta Guziewicz ◽  
Janusz Lewiński ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Sers Substrates ◽  
Label Free Detection ◽  
Surface Enhanced ◽  
Cost Surface ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Efficient and low-cost surface-enhanced Raman scattering (SERS) substrates based on Au coated zinc oxide layers for the detection of neopterin were prepared.

scholarly journals Plasmonic Spherical Nanoparticles Coupled with Titania Nanotube Arrays Prepared by Anodization as Substrates for Surface-Enhanced Raman Spectroscopy Applications: A Review

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7443
Author(s):  
Jorge Jimenez-Cisneros ◽  
Juan Pablo Galindo-Lazo ◽  
Miguel Angel Mendez-Rojas ◽  
Jessica Rosaura Campos-Delgado ◽  
Monica Cerro-Lopez
Keyword(s):  
Raman Spectroscopy ◽  
Metal Nanoparticles ◽  
High Performance ◽  
Low Cost ◽  
Surface Enhanced Raman Spectroscopy ◽  
Noble Metal Nanoparticles ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Tio2 Nts

As surface-enhanced Raman spectroscopy (SERS) continues developing to be a powerful analytical tool for several probes, four important aspects to make it more accessible have to be addressed: low-cost, reproducibility, high sensibility, and recyclability. Titanium dioxide nanotubes (TiO2 NTs) prepared by anodization have attracted interest in this field because they can be used as safe solid supports to deposit metal nanoparticles to build SERS substrate nanoplatforms that meet these four desired aspects. TiO2 NTs can be easily prepared and, by varying different synthesis parameters, their dimensions and specific features of their morphology can be tuned allowing them to support metal nanoparticles of different sizes that can achieve a regular dispersion on their surface promoting high enhancement factors (EF) and reproducibility. Besides, the TiO2 photocatalytic properties enable the substrate’s self-cleaning property for recyclability. In this review, we discuss the different methodological strategies that have been tested to achieve a high performance of the SERS substrates based on TiO2 NTs as solid support for the three main noble metal nanoparticles mainly studied for this purpose: Ag, Au, and Pt.

scholarly journals Bimetallic Core–Shell Nanoparticles of Gold and Silver via Bioinspired Polydopamine Layer as Surface-Enhanced Raman Spectroscopy (SERS) Platform

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 688 ◽  
Author(s):  
Asli Yilmaz ◽  
Mehmet Yilmaz
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Silver Ions ◽  
Surface Enhanced Raman Spectroscopy ◽  
Core Shell ◽  
Silver Deposition ◽  
Shell Nanoparticles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Core Shell Nanoparticles

Despite numerous attempts to fabricate the core–shell nanoparticles, novel, simple, and low-cost approaches are still required to produce these efficient nanosystems. In this study, we propose the synthesis of bimetallic core–shell nanoparticles of gold (AuNP) and silver (AgNP) nanostructures via a bioinspired polydopamine (PDOP) layer and their employment as a surface-enhanced Raman spectroscopy (SERS) platform. Herein, the PDOP layer was used as an interface between nanostructures as well as stabilizing and reducing agents for the deposition of silver ions onto the AuNPs. UV-vis absorption spectra and electron microscope images confirmed the deposition of the silver ions and the formation of core–shell nanoparticles. SERS activity tests indicated that both the PDOP thickness and silver deposition time are the dominant parameters that determine the SERS performances of the proposed core–shell system. In comparison to bare AuNPs, more than three times higher SERS signal intensity was obtained with an enhancement factor of 3.5 × 105.

Physically Self-assembled Au Nanorod Arrays for SERS

2006 ◽  
Vol 951 ◽  
Author(s):  
Motofumi Suzuki ◽  
Kaoru Nakajima ◽  
Kenji Kimura ◽  
Takao Fukuoka ◽  
Yasushige Mori
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Major Axis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Nanorod Arrays ◽  
Au Nanorods ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Oblique Deposition ◽  
Selection Of

ABSTRACTWe have demonstrated surface-enhanced Raman spectroscopy on arrays of Au nanorods aligned in line by a dynamic oblique deposition technique. For the light polarized along the major axis of the nanorods, the plasma resonance of the Au nanorods has been tuned to a wavelength suitable for Raman spectroscopy. The Raman scattering on the discrete nanorods is enhanced significantly compared with that on semi continuous Au films. Since the preparation process is physically bottom-up, it is robust in its selection of the materials and is useful in providing the SERS sensors at low cost.

scholarly journals Application of Doehlert Matrix for an Optimized Preparation of a Surface-Enhanced Raman Spectroscopy (SERS) Substrate Based on Silicon Nanowires for Ultrasensitive Detection of Rhodamine 6G

2019 ◽  
Vol 74 (2) ◽  
pp. 168-177 ◽  
Author(s):  
Awatef Ouhibi ◽  
Maroua Saadaoui ◽  
Nathalie Lorrain ◽  
Mohammed Guendouz ◽  
Noureddine Raouafi ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nitrate ◽  
Silicon Nanowires ◽  
Rhodamine 6G ◽  
Surface Enhanced Raman Spectroscopy ◽  
Influential Factor ◽  
Metallic Surface ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

In this work, we combined a hierarchical nano-array effect of silicon nanowires (SiNWs) with a metallic surface of silver nanoparticles (AgNPs) to design a surface-enhanced Raman spectroscopy (SERS) scattering substrate for sensitive detection of Rhodamine 6G (R6G) which is a typical dye for fluorescence probes. The SiNWs were prepared by Metal-Assisted Chemical Etching (MACE) of n-Si (100) wafers. The Doehlert design methodology was used for planning the experiment and analyzing the experimental results. Thanks to this methodology, the R6G SERS response has been optimized by studying the effects of the silver nitrate concentration, silver nitrate and R6G immersion times and their interactions. The immersion time in R6G solution stands out as the most of influential factor on the SERS response.

scholarly journals Porous carbon nanowire array for surface-enhanced Raman spectroscopy

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Nan Chen ◽  
Ting-Hui Xiao ◽  
Zhenyi Luo ◽  
Yasutaka Kitahama ◽  
Kotaro Hiramatsu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Porous Carbon ◽  
Hot Spots ◽  
Strong Dependence ◽  
Nanowire Array ◽  
Surface Enhanced Raman Spectroscopy ◽  
Localized Surface Plasmon ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Abstract Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmon resonance (LSPR) on metal substrates. However, SERS can be unreliable for biomedical use since it sacrifices reproducibility, uniformity, biocompatibility, and durability due to its strong dependence on “hot spots”, large photothermal heat generation, and easy oxidization. Here, we demonstrate the design, fabrication, and use of a metal-free (i.e., LSPR-free), topologically tailored nanostructure composed of porous carbon nanowires in an array as a SERS substrate to overcome all these problems. Specifically, it offers not only high signal enhancement (~106) due to its strong broadband charge-transfer resonance, but also extraordinarily high reproducibility due to the absence of hot spots, high durability due to no oxidization, and high compatibility to biomolecules due to its fluorescence quenching capability.

Surface-enhanced Raman spectroscopy (SERS) for detection of VX and HD in the gas phase using a hand-held Raman spectrometer

The Analyst ◽  
2020 ◽  
Vol 145 (19) ◽  
pp. 6334-6341 ◽  
Author(s):  
Vered Heleg-Shabtai ◽  
Hagai Sharabi ◽  
Amalia Zaltsman ◽  
Izhar Ron ◽  
Alexander Pevzner
Keyword(s):  
Raman Spectroscopy ◽  
Gas Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Raman Spectrometer ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A sensitive surface-enhanced Raman spectroscopy (SERS) substrate was developed to enable hand-held Raman spectrometers to detect gas-phase VX and HD.

scholarly journals Highly Sensitive Surface Enhanced Raman Spectroscopy from Ag Nanoparticles Decorated Graphene Sheet

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hui Song ◽  
Xin Li ◽  
Sweejiang Yoo ◽  
Yuan Wu ◽  
Weihua Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Size Distribution ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Ag Nps ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman

Surface enhanced Raman spectroscopy (SERS) is a powerful analytical technique and has been most intensively studied. In this work, electroless deposition is proposed for Ag nanoparticles (NPs) decorated on chemical vapor deposition (CVD) growth graphene sheets (GS) to create hybrid SERS substrate. From three aspects of size distribution, morphology, and coverage, Ag NPs controllable decoration on GS and SERS enhancement factors of the hybrid SERS substrate is investigated. 200–300 times enhanced SERS intensities are detected from the Ag NPs on GS hybrid as compared to pure GS. Controllable decoration is crucial for improving SERS enhancement factorsβEF, becauseβEFfrom quasi cubic Ag NPs on GS is 6.53 times stronger than that from spheric one; 1.6 timesβEFis detected while the Ag NPs size distribution is reduced to half, and when the coverage is doubled,βEFis nearly doubled. This controllable Ag NPs/GS hybrid is capable of serving as a high performance SERS substrate for efficient chemical and biological sensing applications.

scholarly journals A simple and reliable approach for the fabrication of nanoporous silver patterns for surface-enhanced Raman spectroscopy applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Angela Capaccio ◽  
Antonio Sasso ◽  
Giulia Rusciano
Keyword(s):  
Raman Spectroscopy ◽  
Inductively Coupled Plasma ◽  
Low Cost ◽  
Cost Effective ◽  
Surface Enhanced Raman Spectroscopy ◽  
Raman Signal ◽  
Plasmonic Nanostructures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Good Signal

AbstractThe fabrication of plasmonic nanostructures with a reliable, low cost and easy approach has become a crucial and urgent challenge in many fields, including surface-enhanced Raman spectroscopy (SERS) based applications. In this frame, nanoporous metal films are quite attractive, due to their intrinsic large surface area and high density of metal nanogaps, acting as hot-spots for Raman signal enhancement. In this paper, we report a detailed study on the fabrication of nanoporous silver-based SERS substrates, obtained by the application of two successive treatments with an Inductively Coupled Plasma (ICP) system, using synthetic air and Ar as feeding gases. The obtained substrates exhibit a quite broad plasmonic response, covering the Vis–NIR range, and an enhancement factor reaching 6.5 $$\times\, 10^7$$ × 10 7 , estimated by using 4-mercaptobenzoic acid (4-MBA) as probe molecule at 532 nm. Moreover, the substrates exhibit a quite good spatial reproducibility on a centimeter scale, which assures a good signal stability for analytical measurements. Globally, the developed protocol is easy and cost effective, potentially usable also for mass production thanks to the remarkable inter-batches reproducibility. As such, it holds promise for its use in SERS-based sensing platforms for sensitive detection of targets molecules.

Sign in / Sign up

Export Citation Format

Share Document