A novel natural surface-enhanced Raman spectroscopy (SERS) substrate based on graphene oxide-Ag nanoparticles-Mytilus coruscus hybrid system

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.

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Surface-Enhanced Raman Spectroscopy Detection of Cerebrospinal Fluid Glucose Based on the Optofluidic In-Fiber-Integrated Composites of Graphene Oxide, Silver Nanoparticles, and 4-Mercaptophenylboronic Acid

ACS Applied Nano Materials ◽

10.1021/acsanm.1c02216 ◽

2021 ◽

Author(s):

Danheng Gao ◽

Xinghua Yang ◽

Meng Luo ◽

Pingping Teng ◽

Haoxin Zhang ◽

...

Keyword(s):

Raman Spectroscopy ◽

Silver Nanoparticles ◽

Cerebrospinal Fluid ◽

Graphene Oxide ◽

Surface Enhanced Raman Spectroscopy ◽

Surface Enhanced ◽

Surface Enhanced Raman

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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

Applied Spectroscopy ◽

10.1177/0003702819881222 ◽

2019 ◽

Vol 74 (2) ◽

pp. 168-177 ◽

Cited By ~ 4

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.

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3D silver nanoparticles with multilayer graphene oxide as a spacer for surface enhanced Raman spectroscopy analysis

Nanoscale ◽

10.1039/c7nr09276h ◽

2018 ◽

Vol 10 (13) ◽

pp. 5897-5905 ◽

Cited By ~ 63

Author(s):

Zhen Li ◽

Shouzhen Jiang ◽

Yanyan Huo ◽

Tingyin Ning ◽

Aihua Liu ◽

...

Keyword(s):

Raman Spectroscopy ◽

Silver Nanoparticles ◽

Graphene Oxide ◽

Surface Enhanced Raman Spectroscopy ◽

Multilayer Graphene ◽

Spectroscopy Analysis ◽

Surface Enhanced ◽

Surface Enhanced Raman

We explore the variation of SERS performance towards two different Ag NP layers using multilayer GO as a spacer.

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Detection of Ultra-Low Concentration of Chiral (R)-di-2-Naphthylprolinol on Ag-Nanoparticles-Modified Ag Electrode by Surface-Enhanced Raman Spectroscopy

ECS Meeting Abstracts ◽

10.1149/ma2010-01/37/1708 ◽

2010 ◽

Keyword(s):

Raman Spectroscopy ◽

Ag Nanoparticles ◽

Surface Enhanced Raman Spectroscopy ◽

Low Concentration ◽

Ag Electrode ◽

Surface Enhanced ◽

Surface Enhanced Raman

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Porous carbon nanowire array for surface-enhanced Raman spectroscopy

Nature Communications ◽

10.1038/s41467-020-18590-7 ◽

2020 ◽

Vol 11 (1) ◽

Cited By ~ 2

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.

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