Ordered assemblies of silver nanoparticles on carbon nitride sheets and their application in the non-enzymatic sensing of hydrogen peroxide and glucose

2015 ◽  
Vol 3 (7) ◽  
pp. 1289-1300 ◽  
Author(s):  
Manas Kumar Kundu ◽  
Mriganka Sadhukhan ◽  
Sudip Barman

A facile fabrication of an ordered assembly of silver nanoparticles on carbon nitride sheets is reported. A modified glassy carbon electrode with carbon nitride sheets doped with silver nanoparticles can be used as a sensitive electrochemical sensor for hydrogen peroxide and glucose.

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13742-13748 ◽  
Author(s):  
Zhewei Peng ◽  
Zhongwei Jiang ◽  
Xin Huang ◽  
Yuanfang Li

A familiar metal–organic framework MIL-101(Fe) and silver nanoparticles composite acted as a novel electrode modified material for the detection of tryptophan.


2020 ◽  
Vol 16 (4) ◽  
pp. 424-437
Author(s):  
Kubra Ozturk ◽  
Nurgul K. Bakirhan ◽  
Sibel A. Ozkan ◽  
Bengi Uslu

Background:: new and selective electrochemical sensor was developed for the determination of levocetirizine dihydrochloride, which is an antihistaminic drug. Method:: The investigation was performed by using cyclic, differential pulse and square wave voltammetric methods on the β-cyclodextrin modified glassy carbon electrode. It is thereby planned to obtain information about levocetirizine determination and its mechanism. Result:: The efficiency of experimental parameters including pH, scan rate, and accumulation potential and time on the anodic response of levocetirizine dihydrochloride was studied. By employing the developed method and under optimized conditions, the current showed linear dependence with a concentration in the range between 2 × 10-8 M and 6 × 10-6 M in pH 2.0 Britton Robinson (BR) buffer. Conclusion:: The achieved limits of detection and quantification were found as 3.73 × 10-10 M and 1.24 × 10-9 M, respectively. In addition, the possibility of applying the developed sensor for real sample analysis was investigated, so β-cyclodextrin modified glassy carbon electrode was used to determine levocetirizine dihydrochloride in Xyzal® tablet dosage form. Finally, this sensor was successfully applied to the real sample as a selective, simple, reproducible, repeatable electrochemical sensor.


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