Self-Reducing Prussian Blue on Ti3C2Tx MXene Nanosheets as a Dual-Functional Nanohybrid for Hydrogen Peroxide and Pesticide Sensing

2020 ◽  
Vol 59 (35) ◽  
pp. 15556-15564
Author(s):  
Ying He ◽  
Xitong Zhou ◽  
Liya Zhou ◽  
Xiaoning Zhang ◽  
Li Ma ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Prussian Blue ◽  
Dual Functional

scholarly journals Ultramicrosensors based on transition metal hexacyanoferrates for scanning electrochemical microscopy

2013 ◽  
Vol 4 ◽  
pp. 649-654 ◽  
Author(s):  
Maria A Komkova ◽  
Angelika Holzinger ◽  
Andreas Hartmann ◽  
Alexei R Khokhlov ◽  
Christine Kranz ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Detection Limit ◽  
Transition Metal ◽  
Prussian Blue ◽  
Electrochemical Deposition ◽  
Mixed Layer ◽  
Scanning Electrochemical Microscopy ◽  
The Stability ◽  
Mixed Layers ◽  
Electrochemical Microscopy

We report here a way for improving the stability of ultramicroelectrodes (UME) based on hexacyanoferrate-modified metals for the detection of hydrogen peroxide. The most stable sensors were obtained by electrochemical deposition of six layers of hexacyanoferrates (HCF), more specifically, an alternating pattern of three layers of Prussian Blue and three layers of Ni–HCF. The microelectrodes modified with mixed layers were continuously monitored in 1 mM hydrogen peroxide and proved to be stable for more than 5 h under these conditions. The mixed layer microelectrodes exhibited a stability which is five times as high as the stability of conventional Prussian Blue-modified UMEs. The sensitivity of the mixed layer sensor was 0.32 A·M−1·cm−2, and the detection limit was 10 µM. The mixed layer-based UMEs were used as sensors in scanning electrochemical microscopy (SECM) experiments for imaging of hydrogen peroxide evolution.

Facile synthesis of Prussian blue @ gold nanocomposite for nonenzymatic detection of hydrogen peroxide

RSC Advances ◽  
2013 ◽  
Vol 3 (36) ◽  
pp. 15987 ◽  
Author(s):  
Pengjuan Ni ◽  
Yue Zhang ◽  
Yujing Sun ◽  
Yan Shi ◽  
Haichao Dai ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Prussian Blue ◽  
Facile Synthesis

Synthesis of hollow Prussian blue cubes as an electrocatalyst for the reduction of hydrogen peroxide

2017 ◽  
Vol 11 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Qinglin Sheng ◽  
Dan Zhang ◽  
Yu Shen ◽  
Jianbin Zheng
Keyword(s):  
Hydrogen Peroxide ◽  
Prussian Blue

scholarly journals P450BM3-Catalyzed Oxidations Employing Dual Functional Small Molecules

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 567 ◽  
Author(s):  
Willot ◽  
Tieves ◽  
Girhard ◽  
Urlacher ◽  
Hollmann ◽  
...  
Keyword(s):  
Amino Acids ◽  
Hydrogen Peroxide ◽  
Cytochrome P450 ◽  
Small Molecules ◽  
Bacillus Megaterium ◽  
Cytochrome P450 Monooxygenase ◽  
Oxidation Reactions ◽  
P450 Monooxygenase ◽  
Dual Functional ◽  
Catalytic Epoxidation

A set of dual functional small molecules (DFSMs) containing different amino acids has been synthesized and employed together with three different variants of the cytochrome P450 monooxygenase P450BM3 from Bacillus megaterium in H2O2-dependent oxidation reactions. These DFSMs enhance P450BM3 activity with hydrogen peroxide as an oxidant, converting these enzymes into formal peroxygenases. This system has been employed for the catalytic epoxidation of styrene and in the sulfoxidation of thioanisole. Various P450BM3 variants have been evaluated in terms of activity and selectivity of the peroxygenase reactions.

Sign in / Sign up

Export Citation Format

Share Document