Hierarchical flower-like manganese oxide/polystyrene with enhanced oxidase-mimicking performance for sensitive colorimetric detection of glutathione

2022 ◽  
Vol 189 (2) ◽  
Author(s):  
Ying Liu ◽  
Jianghong Yan ◽  
Zhiheng Sun ◽  
Yu Huang ◽  
Xuwen Li ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Colorimetric Detection

Solar hydrogen from a manganese oxide based thermochemical cycle

1999 ◽  
Vol 09 (PR3) ◽  
pp. Pr3-331-Pr3-335 ◽  
Author(s):  
M. Sturzenegger ◽  
J. Ganz ◽  
P. Nüesch ◽  
Th. Schelling
Keyword(s):  
Manganese Oxide ◽  
Thermochemical Cycle ◽  
Solar Hydrogen

The growth of manganese oxide thin films by spray pyrolysis technique

2012 ◽  
Vol 1 (2) ◽  
pp. 159-161
Author(s):  
M.Sudha M.Sudha ◽  
◽  
P.Duraisamy P.Duraisamy
Keyword(s):  
Thin Films ◽  
Manganese Oxide ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Oxide Thin Films

Directed Evolution of P450 Fatty Acid Decarboxylases via High-Throughput Screening Towards Improved Catalytic Activity

2019 ◽  
Author(s):  
Huifang Xu ◽  
Weinan Liang ◽  
Linlin Ning ◽  
Yuanyuan Jiang ◽  
Wenxia Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fatty Acid ◽  
Directed Evolution ◽  
High Throughput ◽  
High Throughput Screening ◽  
Colorimetric Detection ◽  
Screening Method ◽  
Random Mutagenesis ◽  
Direct Production ◽  
Consumption Activity

P450 fatty acid decarboxylases (FADCs) have recently been attracting considerable attention owing to their one-step direct production of industrially important 1-alkenes from biologically abundant feedstock free fatty acids under mild conditions. However, attempts to improve the catalytic activity of FADCs have met with little success. Protein engineering has been limited to selected residues and small mutant libraries due to lack of an effective high-throughput screening (HTS) method. Here, we devise a catalase-deficient <i>Escherichia coli</i> host strain and report an HTS approach based on colorimetric detection of H<sub>2</sub>O<sub>2</sub>-consumption activity of FADCs. Directed evolution enabled by this method has led to effective identification for the first time of improved FADC variants for medium-chain 1-alkene production from both DNA shuffling and random mutagenesis libraries. Advantageously, this screening method can be extended to other enzymes that stoichiometrically utilize H<sub>2</sub>O<sub>2</sub> as co-substrate.

Effect of CTAB Concentration on the Morphology of Manganese Oxide Nanostructures

2018 ◽  
Vol 8 (9) ◽  
pp. 98-106
Author(s):  
B. D. Biswas ◽  
M. D. Purkayastha ◽  
T. Pal Majumder
Keyword(s):  
Manganese Oxide ◽  
Ctab Concentration ◽  
Oxide Nanostructures

Studies on manganese oxide minerals. IX. Rancieite

1969 ◽  
Vol 92 (2) ◽  
pp. 191-195 ◽  
Author(s):  
W. E. Richmond ◽  
Michael Fleischer ◽  
Mary E. Mrose
Keyword(s):  
Manganese Oxide ◽  
Oxide Minerals
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