Electrostatic-Driven Coordination Interaction Enables High Specificity of UO22+ Peroxidase Mimic for Visual Colorimetric Detection of UO22+

2020 ◽  
Vol 8 (31) ◽  
pp. 11630-11637 ◽  
Author(s):  
Zhengxing Jiang ◽  
Hua Li ◽  
Rui Ai ◽  
Yuequan Deng ◽  
Yi He
Keyword(s):  
Colorimetric Detection ◽  
High Specificity ◽  
Coordination Interaction ◽  
Peroxidase Mimic

scholarly journals Cu@Au(Ag)/Pt nanocomposite as peroxidase mimic and application of Cu@Au/Pt in colorimetric detection of glucose and l-cysteine

RSC Advances ◽  
2019 ◽  
Vol 9 (71) ◽  
pp. 41561-41568 ◽  
Author(s):  
Cuifeng Jiang ◽  
Xiaoxiu Wei ◽  
Shuai Bao ◽  
Huajian Tu ◽  
Wei Wang
Keyword(s):  
Colorimetric Detection ◽  
Peroxidase Mimic

Cu@Au(Ag)/Pt nanocomposite possess good peroxidase-like activity and can be used for detection of glucose and l-cysteine.

Identifying the active site of ultrathin NiCo LDH as an efficient peroxidase mimic with superior substrate affinity for sensitive detection of hydrogen peroxide

2019 ◽  
Vol 7 (40) ◽  
pp. 6232-6237 ◽  
Author(s):  
Yue Sun ◽  
Hai Xu ◽  
Xi Zhao ◽  
Zengyu Hui ◽  
Chenyang Yu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Active Site ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Substrate Affinity ◽  
Peroxidase Mimic

Ultra-thin NiCo LDH was synthesized as a nanozyme for sensitive colorimetric detection of H2O2 and its active site was identified.

DNAzyme based visual detection of DNA methylation

2018 ◽  
Vol 54 (14) ◽  
pp. 1710-1713 ◽  
Author(s):  
Mei Li ◽  
Lei Zhang ◽  
Gangyi Chen ◽  
Jing Zhou ◽  
Yi Yuan ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Visual Detection ◽  
Colorimetric Detection ◽  
High Specificity ◽  
Specificity And Sensitivity

The colorimetric detection of DNA methylation has been achieved with high specificity and sensitivity by using DNAzyme as a signal reporter.

Double enzymatic cascade reactions within FeSe–Pt@SiO2 nanospheres: synthesis and application toward colorimetric biosensing of H2O2 and glucose

The Analyst ◽  
2015 ◽  
Vol 140 (19) ◽  
pp. 6684-6691 ◽  
Author(s):  
Fengmin Qiao ◽  
Zhenzhen Wang ◽  
Ke Xu ◽  
Shiyun Ai
Keyword(s):  
Colorimetric Detection ◽  
Cascade Reactions ◽  
Cascade Reaction ◽  
Peroxidase Mimic ◽  
Colorimetric Biosensing

The FeSe–Pt@SiO2 nanospheres possessed both intrinsic GOx- and peroxidase-mimic activities, which realized colorimetric detection of glucose through a cascade reaction.

scholarly journals Colorimetric Detection of Class A Soybean Saponins by G-Quadruplex-Based Hybridization Chain Reaction

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Congcong Yin ◽  
Qiaoling Zhao ◽  
Aiqin Yue ◽  
Weijun Du ◽  
Dingbin Liu ◽  
...  
Keyword(s):  
Visual Detection ◽  
Colorimetric Detection ◽  
High Specificity ◽  
Hybridization Chain Reaction ◽  
Chain Reaction ◽  
Class A ◽  
Key Enzyme ◽  
Hairpin Probes ◽  
Type Ab ◽  
Triton X

Soybean saponin is one of the important secondary metabolites in seeds, which has various beneficial physiological functions to human health. GmSg-1 gene is the key enzyme gene for synthesizing class A saponins. It is of great significance to realize the visual and rapid detection of class A saponins at the genetic level. The hybridization chain reaction (HCR) was employed to the visual detection of GmSg-1 gene, which was implemented by changing the length of the target fragment to 92 bp and using the hairpin probes we designed to detect the GmSg-1a and GmSg-1b genes. The best condition of HCR reaction is hemin (1.2 μM), Triton X-100 (0.002%), ABTS (3.8 μM), and H2O2 (1.5 mM). It was found that HCR has high specificity for GmSg-1 gene and could be applied to the visual detection of different soybean cultivars containing Aa type, Ab type, and Aa/Ab type saponins, which could provide technical reference and theoretical basis for molecular breeding of soybean and development of functional soybean products.

Colorimetric Detection of Hg(II) Sensor Based on Mos2 Nanosheets Acting as Peroxidase Mimics

2021 ◽  
Vol 37 (3) ◽  
pp. 679-682
Author(s):  
S. Kavitha ◽  
S. Mary Jelastin Kala ◽  
A. Anand Babu Christus
Keyword(s):  
Colorimetric Detection ◽  
High Sensitivity ◽  
Colorimetric Determination ◽  
X Ray Diffraction ◽  
Mos2 Nanosheets ◽  
Peroxidase Mimic ◽  
Sem Image ◽  
Peroxidase Mimics ◽  
Ft Ir

This paper presents colorimetric determination of Hg(II) based on MoS2 nanosheets with peroxidase mimics activity. The structure of the this sensor by the peroxidase mimic activity material of MoS2 nanosheets with TMB (Tetramethylbenzidine) solution, the colorimetric detection target of Hg(II) is determined by on-off mechanism using biomolecule of cysteine. The MoS2 nanosheets evaluated by X-ray diffraction, FT-IR and SEM image, confirms formation of a flower like structure. Our results shows that a simple colorimetric detection using peroxidase mimic mechanism can be used to MoS2 nanosheets and determine the Hg(II) in aqueous solution with high sensitivity (10 nM) comparable to those of other nanomaterials. The result suggests that MoS2 nanosheets is a promising new and simple colorimetric sensor for applications in environmental and biological applications.

Stable gold nanoparticles as a novel peroxidase mimic for colorimetric detection of cysteine

2016 ◽  
Vol 8 (11) ◽  
pp. 2494-2501 ◽  
Author(s):  
Rong Sheng Li ◽  
Hai Liu ◽  
Bin Bin Chen ◽  
Hong Zhi Zhang ◽  
Cheng Zhi Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Colorimetric Detection ◽  
High Sensitivity ◽  
Peroxidase Mimic ◽  
Sensitivity And Selectivity ◽  
Blue Solution

In this work, stable gold nanoparticles (AuNPs) were prepared with good compatibility and favorable catalytic activity. They were developed as a peroxidase mimic for colorimetric detection of cysteine with a weakened blue solution, which supplied high sensitivity and selectivity.

Construction and Stabilization of a Peptide-based Peroxidase Mimic for the Colorimetric Detection of Uric Acid and Sarcosine

2021 ◽  
pp. 129149
Author(s):  
Zhiqiang Ma ◽  
Lijun Yang ◽  
Yutong Wang ◽  
Mengfan Wang ◽  
Wei Qi ◽  
...  
Keyword(s):  
Uric Acid ◽  
Colorimetric Detection ◽  
Peroxidase Mimic
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