A chemiluminescence method for the determination of mercury(ii) ions by tuning the catalytic activity of gold nanoparticles with ethylenediamine

2019 ◽  
Vol 11 (10) ◽  
pp. 1317-1323 ◽  
Author(s):  
Meiling Wang ◽  
Yafang Kong ◽  
Ying Li ◽  
Yongxin Huang ◽  
Aiping Fan
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Detection Method ◽  
Chemiluminescence Detection ◽  
Chemiluminescence Method ◽  
Turn On ◽  
Mercuric Ions

A turn-on and an ultrasensitive chemiluminescence detection method for mercuric ions was developed.

scholarly journals Effect of anti-thyroid peroxidase (TPO) antibodies on TPO activity measured by chemiluminescence assay

1997 ◽  
Vol 43 (8) ◽  
pp. 1392-1396 ◽  
Author(s):  
V Kaczur ◽  
Gy Vereb ◽  
I Molnár ◽  
G Krajczár ◽  
E Kiss ◽  
...  
Keyword(s):  
Western Blotting ◽  
Competitive Inhibition ◽  
High Sensitivity ◽  
Inhibitory Effect ◽  
Thyroid Peroxidase ◽  
Chemiluminescence Detection ◽  
Chemiluminescence Method ◽  
Blotting Technique ◽  
Hypothyroid Patients

Abstract A chemiluminescence method was developed to measure thyroid peroxidase (TPO) activity and the inhibitory effect of anti-TPO antibodies in purified porcine TPO. The TPO preparation was characterized kinetically and controlled by Western-blotting technique. The chemiluminescence method proved to be reproducible and much more sensitive than the widely used guaiacol method, being able to detect TPO concentrations of 2.21 × 10−5 g/L vs 6.63 × 10−2g/L with the latter. Otherwise, the determinations with the two methods correlated well (r = 0.76). Investigating the effect of IgGs from 23 hypothyroid patients on measured TPO activity, we detected inhibition in 19 cases with the chemiluminescence technique (15 with the guaiacol method). Anti-TPO antibodies showed competitive inhibition of TPO activity with respect to the substrate guaiacol. In both systems, the inhibition is present in the IgG F(ab′)2 fragment. We conclude that the high sensitivity of chemiluminescence detection allows routine determination of the inhibition of TPO activity by anti-TPO antibodies.

Development of a sensitive flow-injection-chemiluminescence detection method for the determination of laevodopa

Luminescence ◽  
2008 ◽  
Vol 23 (5) ◽  
pp. 327-332 ◽  
Author(s):  
Seikh Mafiz Alam ◽  
Mohammad Mainul Karim ◽  
Sang Hak Lee ◽  
Saikh Mohammad Wabaidur ◽  
Hye Young Chung ◽  
...  
Keyword(s):  
Flow Injection ◽  
Detection Method ◽  
Chemiluminescence Detection ◽  
Flow Injection Chemiluminescence

Development of a sensitive flow injection-chemiluminescence detection method for the indirect determination of propranolol

2005 ◽  
Vol 541 (1-2) ◽  
pp. 149-155 ◽  
Author(s):  
George Z. Tsogas ◽  
Dimitrios V. Stergiou ◽  
Athanasios G. Vlessidis ◽  
Nicholaos P. Evmiridis
Keyword(s):  
Flow Injection ◽  
Detection Method ◽  
Chemiluminescence Detection ◽  
Indirect Determination ◽  
Flow Injection Chemiluminescence

Colorimetric and turn-on fluorescence determination of mercury (II) by using carbon dots and gold nanoparticles

2021 ◽  
Author(s):  
Lu Changfang ◽  
Ding Hao ◽  
Wang Yutong ◽  
Xiong Chaoying ◽  
Xianxiang Wang
Keyword(s):  
Gold Nanoparticles ◽  
Carbon Dots ◽  
Turn On ◽  
Fluorescence Determination

A second-order advantage achieved with the aid of gold nanoparticle catalytic activity. Determination of nitrophenol isomers in binary mixtures

2014 ◽  
Vol 6 (9) ◽  
pp. 3056-3064 ◽  
Author(s):  
Faride Rabbani ◽  
Hamid Abdollahi ◽  
M. Reza Hormozi-Nezhad
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Gold Nanoparticle ◽  
Binary Mixtures ◽  
Spectrophotometric Method ◽  
Second Order ◽  
Activity Determination

A novel, simple and rapid spectrophotometric method for the determination of nitrophenol (NP) isomer mixtures based on the catalytic activity of gold nanoparticles is described.

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