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.

Uricase-free on-demand colorimetric biosensing of uric acid enabled by integrated CoP nanosheet arrays as a monolithic peroxidase mimic

2018 ◽  
Vol 1021 ◽  
pp. 113-120 ◽  
Author(s):  
Yanfang He ◽  
Fei Qi ◽  
Xiangheng Niu ◽  
Wenchi Zhang ◽  
Xifeng Zhang ◽  
...  
Keyword(s):  
Uric Acid ◽  
Peroxidase Mimic ◽  
On Demand ◽  
Nanosheet Arrays ◽  
Colorimetric Biosensing

Porphyrin functionalized Co(OH)2/GO nanocomposites as an excellent peroxidase mimic for colorimetric biosensing

The Analyst ◽  
2019 ◽  
Vol 144 (17) ◽  
pp. 5284-5291 ◽  
Author(s):  
Xin Zhao ◽  
Kaili Wu ◽  
Haoyuan Lyu ◽  
Xianxi Zhang ◽  
Zhenxue Liu ◽  
...  
Keyword(s):  
Colorimetric Sensor ◽  
Sensitive Detection ◽  
Peroxidase Mimic ◽  
Colorimetric Biosensing

A colorimetric sensor based on the enhanced peroxidase-like activity of Por/Co(OH)2/GO for the sensitive detection of H2O2 and GSH.

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.

Self color-changing ordered mesoporous ceria for reagent-free colorimetric biosensing

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1419-1424
Author(s):  
Min Su Kim ◽  
Do Hyun Kim ◽  
Junsang Lee ◽  
Hee Tae Ahn ◽  
Moon Il Kim ◽  
...  
Keyword(s):  
Pore Size ◽  
Glucose Oxidase ◽  
Cerium Oxide ◽  
Detection Method ◽  
Limit Of Detection ◽  
Colorimetric Detection ◽  
Oxidative Enzyme ◽  
Ordered Mesoporous ◽  
Colorimetric Biosensing ◽  
Large Pore Size

A reagent-free colorimetric detection method using mesoporous cerium oxide with a large pore size trapping an oxidative enzyme has been developed and glucose is sensitively detected with a limit of detection of 10 μM by supporting glucose oxidase on mesoporous cerium oxide.

scholarly journals Synthesis of spiro[benzo[4,5]imidazo[2,1-b][1,3]thiazole-2,3-thiolane]s via sulfa-Michael/aldol cascade reactions

2019 ◽  
Vol 43 (1-2) ◽  
pp. 63-66 ◽  
Author(s):  
Jiaying Lei ◽  
Xinliang Fu ◽  
Yulin Huang ◽  
Xiaofang Li
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Cascade Reactions ◽  
Cascade Reaction ◽  
Crystallographic Analysis ◽  
X Ray ◽  
Resolution Mass

The sulfa-Michael/aldol cascade reaction of ( Z)-2-arylmethylidene-benzo[4,5]imidazo[2,1- b]thiazol-3(2H)-ones and 1,4-dithiane-2,5-diol afforded novel 2-aryl-4-hydroxy-spiro[benzo[4,5]imidazo[2,1- b][1,3]thiazole-2,3-thiolan]-3-ones in moderate yields. The structures of all the products were characterized thoroughly by nuclear magnetic resonance, infrared and high-resolution mass spectrometry together with X-ray crystallographic analysis.

scholarly journals Brushing the surface: cascade reactions between immobilized nanoreactors

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1551-1562 ◽  
Author(s):  
Dalin Wu ◽  
Serena Rigo ◽  
Stefano Di Leone ◽  
Andrea Belluati ◽  
Edwin C. Constable ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Cascade Reactions ◽  
Cascade Reaction

A tandem cascade reaction between polymer brushes-supported nanoreactors has been demonstrated.

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.

Diversity-Oriented Synthesis of Natural Products via Gold-Catalyzed Cascade Reactions

Synlett ◽  
2018 ◽  
Vol 29 (12) ◽  
pp. 1552-1571 ◽  
Author(s):  
Jianxian Gong ◽  
Zhen Yang ◽  
Yueqing Gu ◽  
Ceheng Tan
Keyword(s):  
Natural Products ◽  
Total Synthesis ◽  
Cascade Reactions ◽  
Cascade Reaction ◽  
Biologically Active ◽  
Synthetic Methods ◽  
Left Wing ◽  
Asymmetric Total Synthesis ◽  
Diversity Oriented Synthesis ◽  
Active Natural

This account describes our group’s latest research in the field of diversity-oriented synthesis of natural products via gold-catalyzed cascade reactions. We present two general strategies based on gold-catalyzed cycloisomerization: a gold-catalyzed cascade reaction of 1,7-diynes and a pinacol-terminated gold-catalyzed cascade reaction. We highlight our development of synthetic methods for the construction of biologically active natural products by using these two strategies.1 Introduction2 Gold-Catalyzed Cascade Reactions of 1,7-Diynes2.1 Collective Synthesis of C15 Oxygenated Drimane-Type Sesquiterpenoids2.2 Synthesis of Left-Wing Fragment of Azadirachtin I2.3 Collective Synthesis of Cladiellins3 Pinacol-Terminated Gold-Catalyzed Cascade Reaction3.1 Asymmetric Formal Total Synthesis of (+)-Cortistatins3.2 Total Synthesis of Orientalol F3.3 Asymmetric Total Synthesis of (–)-Farnesiferol C4 Summary and Outlook

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