Adsorption of p-nitrothiophenol on mesostructured polyoxometalate–silicate–surfactant composites containing Au nanoparticles: study of surface-enhanced Raman scattering activity

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37323-37329 ◽  
Author(s):  
Li-Ping Wang ◽  
Shan-Chi Kuo ◽  
U-Ser Jeng ◽  
Ying-Huang Lai
Keyword(s):  
Raman Scattering ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Detection Sensitivity ◽  
Sers Substrate ◽  
Au Nps ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

When DMAB-functionalized Au-NPs@EPSS acts as the SERS substrate, the detection sensitivity of p-NTP molecules increases by ∼6 times compared with as-synthesized Au-NPs@EPSS.

Synthesis and application of homogeneous Fe3O4 core/Au shell nanoparticles with strong SERS effect

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10352-10357 ◽  
Author(s):  
Fang Li ◽  
Zhifang Yu ◽  
Liyan Zhao ◽  
Tao Xue
Keyword(s):  
Raman Scattering ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Specific Strategy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Fe3o4 Core

Magnetic Fe3O4@Au nanoparticles (NPs) were fabricated using a specific strategy for use as a surface-enhanced Raman scattering (SERS) substrate.

scholarly journals Immobilization and 3D Hot-Junction Formation of Gold Nanoparticles on Two-Dimensional Silicate Nanoplatelets as Substrates for High-Efficiency Surface-Enhanced Raman Scattering Detection

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 324 ◽  
Author(s):  
Yen-Chen Lee ◽  
Chih-Wei Chiu
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
High Efficiency ◽  
Surface Enhanced Raman Scattering ◽  
Detection Sensitivity ◽  
Sers Substrate ◽  
Two Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

We synthesize a high-efficiency substrate for surface-enhanced Raman scattering (SERS) measurements, which is composed of gold nanoparticles (AuNPs) on two-dimensional silicate nanoplatelets acting as an inorganic stabilizer, via the in-situ reduction of hydrogen tetrachloroaurate (III) by sodium citrate in an aqueous solution. Silicate platelets of ~1-nm thickness and various sizes, viz. laponite (50 nm), sodium montmorillonite (Na+–MMT, 100 nm), and mica (500 nm), are used to stabilize the AuNPs (Au@silicate), which are formed with uniform diameters ranging between 25 and 30 nm as confirmed by transmission electron microscopy (TEM). In particular, the laponite SERS substrate can be used in biological, environmental, and food safety applications to measure small molecules such as DNA (adenine molecule), dye (Direct Blue), and herbicide (paraquat) as it shows high detection sensitivity with a detection limit of 10−9 M for adenine detection. These highly sensitive SERS substrates, with their three-dimensional hot-junctions formed with AuNPs and two-dimensional silicate nanoplatelets, allow the highly efficient detection of organic molecules. Therefore, these Au@silicate nanohybrid substrates have great potential in biosensor technology because of their environmentally-friendly and simple fabrication process, high efficiency, and the possibility of rapid detection.

Surface-Enhanced Raman Scattering Dye-Labeled Au Nanoparticles for Triplexed Detection of Leukemia and Lymphoma Cells and SERS Flow Cytometry

Langmuir ◽  
2013 ◽  
Vol 29 (6) ◽  
pp. 1908-1919 ◽  
Author(s):  
Christina M. MacLaughlin ◽  
Nisa Mullaithilaga ◽  
Guisheng Yang ◽  
Shell Y. Ip ◽  
Chen Wang ◽  
...  
Keyword(s):  
Flow Cytometry ◽  
Raman Scattering ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Lymphoma Cells ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Hydrophilic-hydrophobic graphitic carbon nitride@silver hybrid substrate for recyclable surface-enhanced Raman scattering-based detection without coffee ring effect

The Analyst ◽  
2021 ◽  
Author(s):  
Yanjia Jiang ◽  
Huimin Sun ◽  
Chenjie Gu ◽  
Yongling Zhang ◽  
Tao Jiang
Keyword(s):  
Raman Scattering ◽  
Carbon Nitride ◽  
Surface Enhanced Raman Scattering ◽  
Graphitic Carbon Nitride ◽  
Sers Substrate ◽  
Organic P ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Coffee Ring Effect

There is a growing interest in developing a multifunctional surface-enhanced Raman scattering (SERS) substrate to deal with the challenge of the pretreatment-free detection and degradation of hazardous molecules in organic...

scholarly journals Multiplexed Liquid Biopsy and Tumor Imaging Using Surface-Enhanced Raman Scattering

Biosensors ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 449
Author(s):  
Francesco Dell’Olio
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Liquid Biopsy ◽  
Tumor Imaging ◽  
Surface Enhanced Raman Scattering ◽  
Detection Sensitivity ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

The recent improvements in diagnosis enabled by advances in liquid biopsy and oncological imaging significantly better cancer care. Both these complementary approaches, which are used for early tumor detection, characterization, and monitoring, can benefit from applying techniques based on surface-enhanced Raman scattering (SERS). With a detection sensitivity at the single-molecule level, SERS spectroscopy is widely used in cell and molecular biology, and its capability for the in vitro detection of several types of cancer biomarkers is well established. In the last few years, several intriguing SERS applications have emerged, including in vivo imaging for tumor targeting and the monitoring of drug release. In this paper, selected recent developments and trends in SERS applications in the field of liquid biopsy and tumor imaging are critically reviewed, with a special emphasis on results that demonstrate the clinical utility of SERS.

Sign in / Sign up

Export Citation Format

Share Document