A selective sensing platform for the simultaneous detection of ascorbic acid, dopamine, and uric acid based on AuNPs/carboxylated COFs/Poly(fuchsin basic) film

2021 ◽  
Vol 13 (38) ◽  
pp. 4503-4514
Author(s):  
Yasan He ◽  
Xiaogeng Lin ◽  
Yuan Tang ◽  
Ling Ye
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrostatic Interactions ◽  
Simultaneous Detection ◽  
Electrochemical Sensing ◽  
Sensing Platform

Selective electrochemical sensing via H-bonding and electrostatic interactions.

scholarly journals Graphene-Based Flexible Sensors for Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid

2021 ◽  
Vol 9 ◽  
Author(s):  
Shuaishuai Meng ◽  
Yaming Liu ◽  
Li Wang ◽  
Xixi Ji ◽  
Yun Chen ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Small Molecules ◽  
Simultaneous Detection ◽  
Chemical Vapor ◽  
Electrochemical Sensing ◽  
Detection Sensitivity ◽  
Carbon Cloth ◽  
Flexible Sensors ◽  
Suitable Material

Many diseases are closely related to abnormal concentrations of ascorbic acid (AA), dopamine (DA), and uric acid (UA). Therefore, the detection of these small molecules is significant for monitoring life metabolism and healthy states. Electrochemical detection has been widely used to detect small molecules due to its good selectivity, high sensitivity, and good economics. Fabrication and application are two sides of the coin, and we cannot give up one for the other. Graphene (GN) is a very suitable material for electrochemical sensing due to its excellent catalytic performance and large specific surface area. It possesses many excellent properties but cannot hold itself alone due to its nanoscale thickness. Herein, we have fabricated three-dimensional (3D) GN nanosheets (GNSs) on flexible carbon cloth (CC) by thermal chemical vapor deposition (CVD). The GNSs/CC can successfully detect AA, DA, and UA simultaneously. We find that these GNSs/CC sensors show good performance with 7 h CVD modification. The linear ranges of AA, DA, and UA are 0.02–0.1, 0.0005–0.02, and 0.0005–0.02 mM, respectively. The detection sensitivity rates of AA, DA, and UA are 5,470, 60,500, and 64,000 μA mM−1 cm−2, respectively. Our GNSs/CC flexible sensors can be successfully applied in the human serum for UA detection. The result matches with commercial sensors very well.

Gold nanoparticle-decorated MoS2 nanosheets for simultaneous detection of ascorbic acid, dopamine and uric acid

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27625 ◽  
Author(s):  
Haofan Sun ◽  
Jie Chao ◽  
Xiaolei Zuo ◽  
Shao Su ◽  
Xingfen Liu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Gold Nanoparticle ◽  
Simultaneous Detection ◽  
Mos2 Nanosheets

Nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine

Nanoscale ◽  
2021 ◽  
Author(s):  
Kai Zhang ◽  
Zhonghui Zhuo ◽  
Guorong Fan ◽  
Zongde Wang ◽  
Shangxing Chen ◽  
...  
Keyword(s):  
Uric Acid ◽  
Porous Carbon ◽  
Hydrothermal Reaction ◽  
Simultaneous Detection ◽  
Biological Molecules ◽  
Hierarchically Porous ◽  
Sensing Platform ◽  
Guanine And Adenine

A nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of four biological molecules was synthesized via an in situ hydrothermal reaction.

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