scholarly journals Nanoparticle Properties and Synthesis Effects on Surface-Enhanced Raman Scattering Enhancement Factor: An Introduction

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Nathan D. Israelsen ◽  
Cynthia Hanson ◽  
Elizabeth Vargis
Keyword(s):  
Raman Spectroscopy ◽  
Enhancement Factor ◽  
Protective Coatings ◽  
Surface Enhanced Raman Spectroscopy ◽  
Raman Intensity ◽  
Specific Chemical ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Raman spectroscopy has enabled researchers to map the specific chemical makeup of surfaces, solutions, and even cells. However, the inherent insensitivity of the technique makes it difficult to use and statistically complicated. When Raman active molecules are near gold or silver nanoparticles, the Raman intensity is significantly amplified. This phenomenon is referred to as surface-enhanced Raman spectroscopy (SERS). The extent of SERS enhancement is due to a variety of factors such as nanoparticle size, shape, material, and configuration. The choice of Raman reporters and protective coatings will also influence SERS enhancement. This review provides an introduction to how these factors influence signal enhancement and how to optimize them during synthesis of SERS nanoparticles.

scholarly journals Towards a traceable enhancement factor in surface-enhanced Raman spectroscopy

2020 ◽  
Vol 8 (46) ◽  
pp. 16513-16519
Author(s):  
Eleonora Cara ◽  
Luisa Mandrile ◽  
Alessio Sacco ◽  
Andrea M. Giovannozzi ◽  
Andrea M. Rossi ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Density ◽  
Enhancement Factor ◽  
Surface Enhanced Raman Spectroscopy ◽  
Molecular Surface ◽  
X Ray ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Determination of the SERS enhancement factor through the challenging measurement of the molecular surface density by reference-free X-ray fluorescence.

scholarly journals Designing dendronic-Raman markers for sensitive detection using surface-enhanced Raman spectroscopy

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28222-28227
Author(s):  
Priyanka Jain ◽  
Robi Sankar Patra ◽  
Sridhar Rajaram ◽  
Chandrabhas Narayana
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sensitive Detection ◽  
Trace Detection ◽  
New Approach ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A new approach of tuning SERS enhancement with the aid of coupling chemistry for trace detection. A greater number of Raman-active molecules are constrained in a dendronic framework as an improved SERS analyte.

scholarly journals Asphaltene detection using surface enhanced Raman scattering (SERS)

2015 ◽  
Vol 51 (33) ◽  
pp. 7152-7155 ◽  
Author(s):  
O. O. Alabi ◽  
A. N. F. Edilbi ◽  
C. Brolly ◽  
D. Muirhead ◽  
J. Parnell ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface enhanced Raman spectroscopy using a gold substrate and excitation at 514 nm can detect sub parts per million quantities of asphaltene and thereby petroleum.

scholarly journals Surface-Enhanced Raman Scattering as an Emerging Characterization and Detection Technique

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Mustafa Culha ◽  
Brian Cullum ◽  
Nickolay Lavrik ◽  
Charles K. Klutse
Keyword(s):  
Raman Spectroscopy ◽  
Molecular Biology ◽  
Rapid Growth ◽  
Scientific Community ◽  
Surface Enhanced Raman Spectroscopy ◽  
Biological Applications ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

While surface-enhanced Raman spectroscopy (SERS) has been attracting a continuously increasing interest of scientific community since its discovery, it has enjoyed a particularly rapid growth in the last decade. Most notable recent advances in SERS include novel technological approaches to SERS substrates and innovative applications of SERS in medicine and molecular biology. While a number of excellent reviews devoted to SERS appeared in the literature over the last two decades, we will focus this paper more specifically on several promising trends that have been highlighted less frequently. In particular, we will briefly overview strategies in designing and fabricating SERS substrates using deterministic patterning and then cover most recent biological applications of SERS.

Fabrication of Raspberry-Like Gold Nanoparticles and their Applications in Surface-Enhanced Raman Spectroscopy and Catalysis

2014 ◽  
Vol 881-883 ◽  
pp. 952-955
Author(s):  
Chun Rong Wang ◽  
Xian Zai Yan ◽  
Lili Yu ◽  
Jian Dan Li
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Ascorbic Acid ◽  
Surface Enhanced Raman Spectroscopy ◽  
Methanol Solution ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
High Yields

The raspberry-like gold nanoparticles were synthesized with high yields following reduction with hydrochloroauric acid and peptide (Boc-Leu-Aib-Trp-OH) in methanol solution. Peptide acted as reducing agent. The prepared raspberry-like gold nanoparticles are effective application for surface-enhanced Raman scattering in ascorbic acid (Vc). Here, we also demonstrate the effective catalysts of raspberry-like gold nanoparticles for the activation and reduction of methylene blue in the presence of NaBH4.

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.

Fabrication of lipophilic gold nanoparticles for studying lipids by surface enhanced Raman spectroscopy (SERS)

The Analyst ◽  
2014 ◽  
Vol 139 (13) ◽  
pp. 3352-3355 ◽  
Author(s):  
Michael Driver ◽  
Yue Li ◽  
Jinkai Zheng ◽  
Eric Decker ◽  
David Julian McClements ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Fabrication Method ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A simple fabrication method for preparing lipophilic gold nanoparticles (AuNPs) suitable for use as substrates in surface-enhanced Raman scattering (SERS) applications of lipids was developed.

Surface-enhanced Raman scattering on aluminum using near infrared and visible excitation

2014 ◽  
Vol 50 (28) ◽  
pp. 3744-3746 ◽  
Author(s):  
Klaus Bo Mogensen ◽  
Marina Gühlke ◽  
Janina Kneipp ◽  
Shima Kadkhodazadeh ◽  
Jakob B. Wagner ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Surface Enhanced Raman Spectroscopy ◽  
Infrared Range ◽  
Support Surface ◽  
Aluminum Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Near Infrared Range

Discontinuous nanostructured aluminum films can support surface-enhanced Raman spectroscopy using excitation in the near infrared range.

Surface Enhanced Raman Spectroscopy Detection of Crystal Violet Based on an Excellent Silver Nanoparticles/Silicon Pyramid Arrays Structure

2020 ◽  
Vol 15 (11) ◽  
pp. 1321-1326
Author(s):  
Aning Ma ◽  
Wenjing Wei ◽  
Zhongqiang Zhang ◽  
Sichang Peng ◽  
Yurong Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

An efficient surface-enhanced Raman scattering substrate based on silver nanoparticles/silicon pyramid arrays structure is theoretically investigated and experimentally demonstrated. The electric field distributions using finite-element-method are calculated. The surface-enhanced Raman scattering behaviors of sensitivity, uniformity and stability are emphatically discussed and compared by the detection of crystal violet. These theoretical and experimental results reveal that the silver nanoparticles/silicon pyramid arrays substrate is expected to be an effective surface-enhanced Raman scattering platform for label-free sensitive surfaceenhanced Raman spectroscopy detection in areas of biotechnology, medicine and food safety.

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