scholarly journals Fractal Silver Dendrites as 3D SERS Platform for Highly Sensitive Detection of Biomolecules in Hydration Conditions

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1630 ◽  
Author(s):  
Maria José Lo Faro ◽  
Cristiano D’Andrea ◽  
Antonio Alessio Leonardi ◽  
Dario Morganti ◽  
Alessia Irrera ◽  
...  
Keyword(s):  
Low Cost ◽  
Structural Features ◽  
Low Oxygen ◽  
Optical Resonances ◽  
Dendrite Network ◽  
Highly Sensitive ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Detection Of Biomolecules ◽  
Highly Sensitive Detection

In this paper, we report on the realization of a highly sensitive and low cost 3D surface-enhanced Raman scattering (SERS) platform. The structural features of the Ag dendrite network that characterize the SERS material were exploited, attesting a remarked self-similarity and scale invariance over a broad range of length scales that are typical of fractal systems. Additional structural and optical investigations confirmed the purity of the metal network, which was characterized by low oxygen contamination and by broad optical resonances introduced by the fractal behavior. The SERS performances of the 3D fractal Ag dendrites were tested for the detection of lysozyme as probe molecule, attesting an enhancement factor of ~2.4 × 106. Experimental results assessed the dendrite material as a suitable SERS detection platform for biomolecules investigations in hydration conditions.

Highly sensitive detection of paclitaxel by surface-enhanced Raman scattering

2015 ◽  
Vol 17 (11) ◽  
pp. 114019 ◽  
Author(s):  
Maximilien Cottat ◽  
Nathalie Lidgi-Guigui ◽  
Frédéric Hamouda ◽  
Bernard Bartenlian ◽  
Divya Venkataraman ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Highly Sensitive Detection

Highly sensitive detection of Cr(vi) in groundwater by bimetallic NiFe nanoparticles

2017 ◽  
Vol 9 (6) ◽  
pp. 1031-1037 ◽  
Author(s):  
Jingtao Liu ◽  
Yu Ding ◽  
Lifei Ji ◽  
Xin Zhang ◽  
Fengchun Yang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Hexavalent Chromium ◽  
Low Cost ◽  
High Sensitivity ◽  
Sensitive Detection ◽  
Toxic Heavy Metal ◽  
Metal Pollutants ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Heavy Metal Pollutants

Hexavalent chromium (Cr(vi)) is one of the most toxic heavy metal pollutants in groundwater, and thus the detection of Cr(vi) with high sensitivity, accuracy, and simplicity and low cost is of great importance.

scholarly journals Ag Nanoparticle-Decorated Cu2S Nanosheets for Surface Enhanced Raman Spectroscopy Detection and Photocatalytic Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2508
Author(s):  
Osama Nasr ◽  
Jian-Ru Jiang ◽  
Wen-Shuo Chuang ◽  
Sheng-Wei Lee ◽  
Chih-Yen Chen
Keyword(s):  
Reduction Method ◽  
Organic Pollutant ◽  
Surface Enhanced Raman Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Enhanced Raman Scattering ◽  
New Generation ◽  
Photocatalytic Applications

In this article, we demonstrate a facile, rapid, and practical approach to growing high-quality Cu2S nanosheets decorated with Ag nanoparticles (NPs) through the galvanic reduction method. The Ag/Cu2S nanosheets were efficiently applied to the surface-enhanced Raman scattering (SERS) and photocatalytic degradation applications. The photodegradation of RhB dye with the Ag/Cu2S nanosheets composites occurred at a rate of 2.9 times faster than that observed with the undecorated Cu2S nanosheets. Furthermore, the Ag/Cu2S nanosheets displayed highly sensitive SERS detection of organic pollutant (R6G) as low as 10−9 M. The reproducibility experiments indicated that the Ag/Cu2S nanosheets composites could be used for dual functionality in a new generation of outstandingly sensitive SERS probes for detection and stable photocatalysts.

scholarly journals Fabrication and SERS Performances of Metal/Si and Metal/ZnO Nanosensors: A Review

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 86 ◽  
Author(s):  
Grégory Barbillon
Keyword(s):  
Short Review ◽  
Biological Molecules ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Gold Silver ◽  
Semiconducting Nanostructures ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Highly Sensitive Detection ◽  
Analytical Tools

Surface-enhanced Raman scattering (SERS) sensors are very powerful analytical tools for the highly sensitive detection of chemical and biological molecules. Substantial efforts have been devoted to the design of a great number of hybrid SERS substrates such as silicon or zinc oxide nanosystems coated with gold/silver nanoparticles. By comparison with the SERS sensors based on Au and Ag nanoparticles/nanostructures, higher enhancement factors and excellent reproducibilities are achieved with hybrid SERS nanosensors. This enhancement can be due to the appearance of hotspots located at the interface between the metal (Au/Ag) and the semiconducting substrates. Thus, in this last decade, great advances in the domain of hybrid SERS nanosensors have occurred. In this short review, the recent advances of these hybrid metal-coated semiconducting nanostructures as SERS sensors of chemical and biological molecules are presented.

scholarly journals Development of Low-Cost AuNP-Based Aptasensors with Truncated Aptamer for Highly Sensitive Detection of 8-Oxo-dG in Urine

ACS Omega ◽  
2020 ◽  
Vol 5 (28) ◽  
pp. 17423-17430
Author(s):  
Piyaporn Matulakul ◽  
Drusawin Vongpramate ◽  
Sirinan Kulchat ◽  
Apiwat Chompoosor ◽  
Raynoo Thanan ◽  
...  
Keyword(s):  
Low Cost ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Carbon nanoparticle-protected aptamers for highly sensitive and selective detection of biomolecules based on nuclease-assisted target recycling signal amplification

2014 ◽  
Vol 50 (57) ◽  
pp. 7646-7648 ◽  
Author(s):  
Xiaoyan Lin ◽  
Liang Cui ◽  
Yishun Huang ◽  
Ya Lin ◽  
Yi Xie ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Carbon Nanoparticles ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Carbon Nanoparticle ◽  
Target Recycling ◽  
Amplification Method ◽  
Highly Sensitive ◽  
Detection Of Biomolecules ◽  
Highly Sensitive Detection

A nuclease-assisted target recycling signal amplification method based on carbon nanoparticles for highly sensitive detection of biomolecules was developed.

Highly Sensitive Detection of Blood by Surface Enhanced Raman Scattering,,

2013 ◽  
Vol 58 (3) ◽  
pp. 753-756 ◽  
Author(s):  
Samantha Boyd ◽  
Massimo F. Bertino ◽  
Dexian Ye ◽  
Lauren S. White ◽  
Sarah J. Seashols
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Highly Sensitive Detection

Driving force to detect Alzheimer's disease biomarkers: application of a thioflavine T@Er-MOF ratiometric fluorescent sensor for smart detection of presenilin 1, amyloid β-protein and acetylcholine

The Analyst ◽  
2020 ◽  
Vol 145 (13) ◽  
pp. 4646-4663
Author(s):  
Xing Ze Wang ◽  
Jing Du ◽  
Nan Nan Xiao ◽  
Yan Zhang ◽  
Ling Fei ◽  
...  
Keyword(s):  
Driving Force ◽  
Fluorescent Sensor ◽  
Low Cost ◽  
Amyloid Β ◽  
Amyloid Β Protein ◽  
Disease Biomarkers ◽  
Β Protein ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Detection Strategies

ThT@Er-MOF has been successfully applied in highly sensitive detection of three main Alzheimer Disease biomarkers through three different low cost and facile detection strategies.

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