Highly sensitive determination of hydroxylamine using fused gold nanoparticles immobilized on sol–gel film modified gold electrode

2010 ◽  
Vol 663 (2) ◽  
pp. 158-164 ◽  
Author(s):  
P. Kannan ◽  
S. Abraham John
Keyword(s):  
Gold Nanoparticles ◽  
Gold Electrode ◽  
Sol Gel ◽  
Highly Sensitive ◽  
Gel Film ◽  
Sensitive Determination

scholarly journals The highly sensitive determination of serotonin by using gold nanoparticles (Au NPs) with a localized surface plasmon resonance (LSPR) absorption wavelength in the visible region

RSC Advances ◽  
2020 ◽  
Vol 10 (51) ◽  
pp. 30858-30869
Author(s):  
Phuong Que Tran Do ◽  
Vu Thi Huong ◽  
Nguyen Tran Truc Phuong ◽  
Thi-Hiep Nguyen ◽  
Hanh Kieu Thi Ta ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Visible Region ◽  
Localized Surface Plasmon ◽  
Au Nps ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Sensitive Determination

The development of improved methods for the synthesis of monodisperse gold nanoparticles (Au NPs) is of high priority because they can be used as substrates for surface-enhanced Raman scattering (SERS) applications relating to biological lipids.

Highly Sensitive Determination of Dopamine Using Osmium/Nafion Modified Disposable Integrated Biosensor

2009 ◽  
Vol 60-61 ◽  
pp. 311-314 ◽  
Author(s):  
Chun Xiu Liu ◽  
Hong Min Liu ◽  
Qing De Yang ◽  
Nan Sen Lin ◽  
Yi Lin Song ◽  
...  
Keyword(s):  
Detection Limit ◽  
Correlation Coefficient ◽  
Gold Electrode ◽  
High Sensitivity ◽  
Differential Pulse ◽  
Redox Polymer ◽  
Highly Sensitive ◽  
Sensitive Determination ◽  
Excellent Reproducibility

A biosensor based on gold electrode modified by Pt nanaoparticles/Osmium redox polymer/Nafion trilayer film was fabricated and used for selective and sensitive determination of dopamine. The biosensor is explored for DA sensing using the cyclic voltammetry (CV), amperometric and differential pulse voltammetric (DPV) methods. The CV anodic peak currents showed a linear range with a correlation coefficient of 0.996, localized in the concentration range 0~192 μM. The differential pulse voltammetric (DPV) peak currents were linear with DA concentration during 2~425 μM with correlation coefficient of 0.99. The biosensor showed high sensitivity of 0.5 nA /nM cm2 and excellent reproducibility with the detection limit of ~10 nM (S/N=3) for the determination of DA. The easy fabrication, low detection limit and high sensitivity of the integrated biosensor making it particularly suitable for the analytical purposes.

Highly sensitive amperometric detection of bilirubin using enzyme and gold nanoparticles on sol–gel film modified electrode

Talanta ◽  
2011 ◽  
Vol 86 ◽  
pp. 400-407 ◽  
Author(s):  
Palanisamy Kannan ◽  
Hailan Chen ◽  
Victor Tswen-Wen Lee ◽  
Dong-Hwan Kim
Keyword(s):  
Gold Nanoparticles ◽  
Modified Electrode ◽  
Sol Gel ◽  
Amperometric Detection ◽  
Highly Sensitive ◽  
Gel Film
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