Positively Charged Mini-Protein Zbasic2 As a Highly Efficient Silica Binding Module: Opportunities for Enzyme Immobilization on Unmodified Silica Supports

Langmuir ◽  
2012 ◽  
Vol 28 (26) ◽  
pp. 10040-10049 ◽  
Author(s):  
Juan M. Bolivar ◽  
Bernd Nidetzky
Keyword(s):  
Enzyme Immobilization ◽  
Highly Efficient ◽  
Silica Supports ◽  
Unmodified Silica ◽  
Positively Charged

scholarly journals Highly efficient H2S scavengers via thiolysis of positively-charged NBD amines

2020 ◽  
Vol 11 (30) ◽  
pp. 7823-7828 ◽  
Author(s):  
Ismail Ismail ◽  
Zhuoyue Chen ◽  
Lu Sun ◽  
Xiuru Ji ◽  
Haishun Ye ◽  
...  
Keyword(s):  
Live Cells ◽  
Highly Efficient ◽  
Positively Charged

We demonstrate that positively-charged NBD amines can effectively scavenge biological H2S in live cells and in mice.

Highly Efficient Enzyme Immobilization and Stabilization within Meso-Structured Onion-Like Silica for Biodiesel Production

2012 ◽  
Vol 24 (5) ◽  
pp. 924-929 ◽  
Author(s):  
Seung-Hyun Jun ◽  
Jinwoo Lee ◽  
Byoung Chan Kim ◽  
Ji Eun Lee ◽  
Jin Joo ◽  
...  
Keyword(s):  
Enzyme Immobilization ◽  
Biodiesel Production ◽  
Highly Efficient

Supported task-specific ionic liquid catalyst for highly efficient and recyclable aerobic oxidation of benzyl alcohols

2011 ◽  
Vol 89 (1) ◽  
pp. 68-71 ◽  
Author(s):  
Lin Liu ◽  
Juanjuan Ma ◽  
Zhen Sun ◽  
Jianping Zhang ◽  
Jingjing Huang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Aerobic Oxidation ◽  
Copper Salt ◽  
High Conversion ◽  
Allylic Alcohols ◽  
Benzyl Alcohols ◽  
Highly Efficient ◽  
Silica Supports ◽  
Task Specific Ionic Liquid

A novel catalytic system was prepared by impregnating ionic liquid immobilized 2,2,6,6-tetramethylpiperidyl-1-oxyl (TEMPO) and copper salt onto various silica supports. This catalytic system was capable of rapidly converting different benzylic and allylic alcohols into the corresponding aldehydes under O2 atmosphere with high conversion. Recycling results showed that the catalyst could be easily recovered and reused.

Designing Hydrophobically Modified Polysaccharide Derivatives for Highly Efficient Enzyme Immobilization

2015 ◽  
Vol 16 (8) ◽  
pp. 2403-2411 ◽  
Author(s):  
Tamilselvan Mohan ◽  
Raffael Rathner ◽  
David Reishofer ◽  
Martin Koller ◽  
Thomas Elschner ◽  
...  
Keyword(s):  
Enzyme Immobilization ◽  
Highly Efficient ◽  
Hydrophobically Modified ◽  
Polysaccharide Derivatives

ChemInform Abstract: Rhodium Bis-phosphine Catalysts on Mesoporous Silica Supports: New Highly Efficient Catalysts for the Hydrogenation of Alkenes.

ChemInform ◽  
2010 ◽  
Vol 32 (40) ◽  
pp. no-no
Author(s):  
Cathleen M. Crudden ◽  
Daryl Allen ◽  
Michael D. Mikoluk ◽  
Jian Sun
Keyword(s):  
Mesoporous Silica ◽  
Highly Efficient ◽  
Silica Supports

scholarly journals Application of Immobilized Cholest-4-en-3-one Δ1-Dehydrogenase from Sterolibacterium denitrificans for Dehydrogenation of Steroids

2020 ◽  
Author(s):  
Mateusz Tataruch ◽  
Patrycja Wójcik ◽  
Agnieszka M. Wojtkiewicz ◽  
Katarzyna Zaczyk ◽  
Katarzyna Szymańska ◽  
...  
Keyword(s):  
Enzyme Immobilization ◽  
Electron Acceptor ◽  
Immobilized Enzyme ◽  
Specific Activity ◽  
Batch Reactor ◽  
Fed Batch ◽  
Immobilized Catalyst ◽  
Silica Supports ◽  
Dehydrogenase Enzyme ◽  
Final Yield

Cholest-4-en-3-one Δ1-dehydrogenase (AcmB) from Sterolibacterium denitrificans is successfully immobilized on 3-aminopropyltrimethoysilane functionalized MCF and SBA-15 silica supports using adsorption or covalently with glutaraldehyde or divinyl sulfone linkers. The best catalyst, AcmB on MCF linked covalently with glutaraldehyde, retains the specific activity of the homogenous enzyme while exhibiting a substantial increase of the operational stability. The immobilized enzyme was used continuously in the fed-batch reactor for 27 days, catalyzing 1,2-dehydrogenation of androst-4-en-3-one to androst-1,4-dien-3-one with a final yield of 29.9 mM (8.56 g/L) and 99% conversion. The possibility of reuse of the immobilized catalyst was also demonstrated and resulted with a doubling of the product amount compared to that in the reference homogenous reactor. Finally, it was shown that molecular oxygen from the air can efficiently be used as an electron acceptor either reoxidizing directly the enzyme or the reduced DCPIPH2. Keywords: 3-ketosteroid D1-dehydrogenase; KSTD; KSDH; AcmB; 1,2-dehydrogenation; cholest-4-en-3-one Δ1-dehydrogenase; enzyme immobilization, FAD-dependent enzymes; enzyme immobilization;

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