Gold Nanoparticle Cluster Arrays for High-Performance SERS Substrates Fabricated by Electro-oxidative Lithography

ChemNanoMat ◽  
2016 ◽  
Vol 2 (8) ◽  
pp. 781-785 ◽  
Author(s):  
He Liu ◽  
Almut M. Schwenke ◽  
Florian Kretschmer ◽  
Stephanie Hoeppener ◽  
Ulrich S. Schubert
Keyword(s):  
Gold Nanoparticle ◽  
High Performance ◽  
Sers Substrates ◽  
Nanoparticle Cluster

scholarly journals Gold Nanoparticle-Mediated Noncovalent Functionalization of Graphene for Field-Effect Transistor

2021 ◽  
Author(s):  
Dongha Shin ◽  
Hwa Rang Kim ◽  
Byung Hee Hong
Keyword(s):  
Transport Properties ◽  
Gold Nanoparticle ◽  
Electrical Transport ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistor ◽  
Electrical Transport Properties ◽  
Noncovalent Functionalization ◽  
Effect Transistor

Since of its first discovery, graphene has attracted much attention because of the unique electrical transport properties that can be applied to high-performance field-effect transistor (FET). However, mounting chemical functionalities...

scholarly journals Facile Detection and Quantification of Acetamiprid Using a Portable Raman Spectrometer Combined with Self-Assembled Gold Nanoparticle Array

Chemosensors ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 327
Author(s):  
Panxue Wang ◽  
Yan Sun ◽  
Li Wang ◽  
Xiang Li ◽  
Miaomiao Liu ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Correlation Coefficients ◽  
Nanoparticle Array ◽  
Sers Signal ◽  
Sers Substrates ◽  
Specificity And Sensitivity ◽  
Exciting Opportunity ◽  
Sers Detection ◽  
Self Assembled ◽  
Detection And Quantification

Rapid and facile determination of pesticides is critically important in food and environmental monitoring. This study developed a self-assembled gold nanoparticle array based SERS method for highly specific and sensitive detection of acetamiprid, a neonicotinoid pesticide that used to be difficult in SERS analysis due to its low affinity with SERS substrates. SERS detection and quantification of acetamiprid was conducted with self-assembled gold nanoparticle arrays at the interface of chloroform and water as the enhancing substrate. Since targets dissolved in chloroform (organic phase) also have access to the hot-spots of Au NP array, the developed method exhibited good sensitivity and specificity for acetamiprid determination. Under the optimal conditions, SERS intensities at Raman shifts of 631 cm−1 and 1109 cm−1 displayed a good linear relationship with the logarithm concentration of acetamiprid in the range of 5.0 × 10−7 to 1.0 × 10−4 mol/L (0.11335 ppm to 22.67 ppm), with correlation coefficients of 0.97972 and 0.97552, respectively. The calculated LOD and LOQ of this method were 1.19 × 10−7 mol/L (0.265 ppb) and 2.63 × 10−7 mol/L (0.586 ppb), respectively, using SERS signal at 631 cm−1, and 2.95 × 10−7 mol/L (0.657 ppb) and 3.86 × 10−7 mol/L (0.860 ppb) using SERS signal at 1109 cm−1, respectively. Furthermore, the developed SERS method was successfully applied in determining acetamiprid on the surface of apple and spinach. This method offers an exciting opportunity for rapid detection of acetamiprid and other organic pesticides considering its advantages of simple preparation process, good specificity and sensitivity, and short detection time (within 1 h).

A colorimetric sensor array for detection and discrimination of antioxidants based on Ag nanoshell deposition on gold nanoparticle surfaces

The Analyst ◽  
2019 ◽  
Vol 144 (21) ◽  
pp. 6276-6282
Author(s):  
Yanan Li ◽  
Qingyun Liu ◽  
Zhengbo Chen
Keyword(s):  
Gold Nanoparticle ◽  
Human Body ◽  
High Performance ◽  
Essential Role ◽  
Sensor Array ◽  
Colorimetric Sensor ◽  
Colorimetric Sensor Array

There is growing interest in developing a high-performance sensor array for detection and discrimination of antioxidants owing to their widespread use and essential role in the human body.

scholarly journals Preparation of polymer gold nanoparticle composites with tunable plasmon coupling and their application as SERS substrates

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 19884-19894 ◽  
Author(s):  
Samir A. Belhout ◽  
Frederico R. Baptista ◽  
Stephen J. Devereux ◽  
Anthony W. Parker ◽  
Andrew D. Ward ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Optical Tweezer ◽  
Plasmon Coupling ◽  
Sers Substrates ◽  
Nanoparticle Composites ◽  
Composite Properties ◽  
Properties Of Composites ◽  
Plasmon Ruler

The plasmonic properties of composites with controlled AuNP loading are found to be well described by a plasmon ruler equation, and Raman optical tweezer results show the SERS performance in the bulk is dominated by the discrete composite properties.

Highly conductive electrocatalytic gold nanoparticle-assembled carbon fiber electrode for high-performance glucose-based biofuel cells

2019 ◽  
Vol 7 (22) ◽  
pp. 13495-13505 ◽  
Author(s):  
Cheong Hoon Kwon ◽  
Yongmin Ko ◽  
Dongyeeb Shin ◽  
Seung Woo Lee ◽  
Jinhan Cho
Keyword(s):  
Carbon Fiber ◽  
Gold Nanoparticle ◽  
High Power ◽  
High Performance ◽  
Biofuel Cells ◽  
Au Nanoparticle ◽  
Layer By Layer ◽  
Carbon Fiber Electrodes ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode

Au nanoparticle-coated highly conductive carbon fiber electrodes for high-power glucose-biofuel cells were developed based on a layer-by-layer assembling method.

Self-assembly of various silver nanocrystals on PmPD/PAN nanofibers as a high-performance 3D SERS substrate

The Analyst ◽  
2015 ◽  
Vol 140 (16) ◽  
pp. 5707-5715 ◽  
Author(s):  
Peng Jia ◽  
Bing Cao ◽  
Jianqiang Wang ◽  
Jin Qu ◽  
Yuxuan Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Nanofiber Mats ◽  
Pan Nanofiber

The AgNCs (AgNPs, AgNTs and AgNDs) decorated-PmPD/PAN nanofiber mats were obtained as highly sensitive 3D SERS substrates.

Fabrication and simulation of V-shaped Ag nanorods as high-performance SERS substrates

2018 ◽  
Vol 20 (40) ◽  
pp. 25623-25628 ◽  
Author(s):  
Jianghao Li ◽  
Yihang Fan ◽  
Xiaotian Xue ◽  
Lingwei Ma ◽  
Sumeng Zou ◽  
...  
Keyword(s):  
High Performance ◽  
Sers Substrates

V-shaped AgNRs have a higher SERS sensitivity than straight AgNRs and their resonance wavelengths can be tuned linearly.

Tunable 3D light trapping architectures based on self-assembled SnSe2 nanoplate arrays for ultrasensitive SERS detection

2019 ◽  
Vol 7 (33) ◽  
pp. 10179-10186 ◽  
Author(s):  
Weiwei Li ◽  
Lei Xiong ◽  
Nianci Li ◽  
Shuo Pang ◽  
Guoliang Xu ◽  
...  
Keyword(s):  
High Performance ◽  
Light Trapping ◽  
Sers Substrates ◽  
Sers Detection ◽  
Self Assembled

We demonstrate tunable 3D light trapping (up to ∼96%) architectures based on the SnSe2 nanoplate arrays (NPAs) via self-assembled growth and high performance (EF: 6.33 × 106, LOD: 1 × 10−12 M) SERS substrates based on SnSe2 NPAs.

scholarly journals Bioscaffold arrays decorated with Ag nanoparticles as a SERS substrate for direct detection of melamine in infant formula

RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 21771-21776 ◽  
Author(s):  
Nan Zhao ◽  
Hefu Li ◽  
Cunwei Tian ◽  
Yanru Xie ◽  
Zhenbao Feng ◽  
...  
Keyword(s):  
High Performance ◽  
Direct Detection ◽  
Three Dimensional ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Plasmonic Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Performance Surface

Three-dimensional (3D) plasmonic structures have been intensively investigated as high performance surface enhanced Raman scattering (SERS) substrates.

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