The synthesis of amphiphilic pillar[5]arene functionalized reduced graphene oxide and its application as novel fluorescence sensing platform for the determination of acetaminophen

2017 ◽  
Vol 91 ◽  
pp. 863-869 ◽  
Author(s):  
Genfu Zhao ◽  
Long Yang ◽  
Shilian Wu ◽  
Hui Zhao ◽  
E Tang ◽  
...  
RSC Advances ◽  
2020 ◽  
Vol 10 (69) ◽  
pp. 42212-42220
Author(s):  
Manh B. Nguyen ◽  
Vu Thi Hong Nhung ◽  
Vu Thi Thu ◽  
Dau Thi Ngoc Nga ◽  
Thuan Nguyen Pham Truong ◽  
...  

In the present work, we reported the fabrication of a novel electrochemical sensing platform to detect 2,4-dichlorophenol (2,4-DCP) by using a copper benzene-1,3,5-tricarboxylate–graphene oxide (Cu–BTC/GO) composite.


Author(s):  
Yanju Wu ◽  
Zikang Li ◽  
Dongyang Han ◽  
Qunpeng Duan ◽  
Fei Wang

Abstract On the surface of a glassy carbon electrode, electrochemically reduced graphene oxide-cationic pillar[6]arene (ErGO-CP6) composite film was constructed using a pulsed potential method. UV-vis spectra, SEM, Raman spectra and electrochemical experiments were applied to characterize the composite film. It was then used as a new electrochemical sensing platform for determination of thiamethoxam. Due to the synergistic effect of ErGO and CP6, this composite film shows a higher sensitivity and better selectivity toward thiamethoxam than that of ErGO film. The linear range from 1.0 × 10-7 to 1.3 × 10-5 mol L-1 was obtained by differential pulse voltammetry. Meanwhile, the method was applied to cucumber and tomato samples in a recovery test. The recovery was between 92.0% and 98.7%, and the results are satisfactory. This study presents a promising electrochemical sensing platform for rapid and sensitive analysis of thiamethoxam.


2015 ◽  
Vol 7 (6) ◽  
pp. 2554-2562 ◽  
Author(s):  
Qiaojuan Gong ◽  
Haiying Yang ◽  
Yanyun Dong ◽  
Wenchan Zhang

A sensitive impedimetric DNA biosensor for the determination of the HIV gene was developed by employing electrochemically reduced graphene oxide as a sensing platform.


2018 ◽  
Vol 259 ◽  
pp. 606-616 ◽  
Author(s):  
Muhammad Mehmood Shahid ◽  
Perumal Rameshkumar ◽  
Wan Jeffrey Basirunc ◽  
Upul Wijayantha ◽  
Wee Siong Chiu ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.


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