Solid-Phase Colorimetric Sensor Based on Gold Nanoparticle-Loaded Polymer Brushes: Lead Detection as a Case Study

2013 ◽  
Vol 85 (8) ◽  
pp. 4094-4099 ◽  
Author(s):  
Abdul Rahim Ferhan ◽  
Longhua Guo ◽  
Xiaodong Zhou ◽  
Peng Chen ◽  
Seungpyo Hong ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Polymer Brushes ◽  
Solid Phase ◽  
Colorimetric Sensor ◽  
Lead Detection

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.

Matrix solid-phase dispersion as a tool for phytochemical and bioactivities characterisation: Crataegus oxyacantha L._A case study

2017 ◽  
Vol 32 (10) ◽  
pp. 1220-1223 ◽  
Author(s):  
Wassila Benabderrahmane ◽  
Marta Lores ◽  
Juan Pablo Lamas ◽  
Samir Benayache
Keyword(s):  
Solid Phase ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion

Coupling solid-phase microextractions and surface-enhanced Raman scattering: towards a point-of-need tool for hepatic cancer screening

2017 ◽  
Vol 9 (32) ◽  
pp. 4641-4646 ◽  
Author(s):  
Jennifer H. Granger ◽  
Aleksander Skuratovsky ◽  
Marc D. Porter ◽  
Courtney L. Scaife ◽  
Jill E. Shea ◽  
...  
Keyword(s):  
Cancer Screening ◽  
Raman Scattering ◽  
Gold Nanoparticle ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Scattering ◽  
Hepatic Cancer ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A method for rapid, highly portable immunoassays at low limits of detection has been developed by combining solid-phase microextraction membranes, gold nanoparticle labels, and surface-enhanced Raman scattering.

Reproductive Steroid Responses in Fish Exposed to Pulp Mill Condensates: An Investigation of Cause Case Study

2010 ◽  
Vol 45 (2) ◽  
pp. 163-173 ◽  
Author(s):  
Deborah L. MacLatchy ◽  
Craig Milestone ◽  
Kevin S. Shaughnessy ◽  
Andrew M. Belknap ◽  
Monique G. Dubé ◽  
...  
Keyword(s):  
High Performance ◽  
Fundulus Heteroclitus ◽  
Solid Phase ◽  
Pulp Mill ◽  
Chemical Recovery ◽  
Plasma Testosterone ◽  
Evaluation Approach ◽  
Identification Evaluation ◽  
Active Substances

Abstract An investigation of cause (IOC) approach integrating artificial stream exposures and laboratory bioassays has been used to identify waste stream sources of contaminants at the Irving Pulp & Paper Ltd. mill, in Saint John, New Brunswick, Canada. Chemical recovery condensates have shown the greatest potential for reducing circulating steroids in mummichog (Fundulus heteroclitus), an endemic fish species. A solid phase extraction (SPE) technique was developed to isolate hormonally active substances from the condensates, and a toxicity identification evaluation approach was used to gain a better understanding of the chemical characteristics of the active substances. Extracts were fractionated by high performance liquid chromatography (HPLC) and the fractions were used in a seven-day bioassay. Dose-response experiments indicated that steroid reductions in male mummichog were observed consistently after a 4% (vol/vol) exposure. At 4% (vol/vol), however, steroid reductions were not observed in fractions of the active SPE extract generated by HPLC. Some fractions actually induced increases in plasma testosterone. Recent work has focused on understanding what methodologies must be used to handle the semivolatile condensates to ensure 100% chemical recovery and retention of biological activity. Results are summarized in the context of developing an industry-wide IOC framework.

Solid-phase extraction and HPLC-MS profiling of pyrrolizidine alkaloids and theirN-oxides: a case study ofEchium plantagineum

2005 ◽  
Vol 16 (2) ◽  
pp. 108-119 ◽  
Author(s):  
Steven M. Colegate ◽  
John A. Edgar ◽  
Andrew M. Knill ◽  
Stephen T. Lee
Keyword(s):  
Solid Phase Extraction ◽  
Pyrrolizidine Alkaloids ◽  
Solid Phase ◽  
Phase Extraction
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