Optimization of Interfacial Properties Improved the Stability and Activity of the Catalase Enzyme Immobilized on Plastic Nanobeads DOI Creative Commons
Szilárd Sáringer,

Gergő Terjéki,

Árpád Varga

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(31), P. 16338 - 16348

Published: July 27, 2024

The immobilization of catalase (CAT), a crucial oxidoreductase enzyme involved in quenching reactive oxygen species, on colloids and nanoparticles presents promising strategy to improve dispersion storage stability while maintaining its activity. Here, the CAT onto polymeric (positively (AL) or negatively (SL) charged) was implemented directly via surface functionalization with water-soluble chitosan derivatives (glycol (GC) methyl glycol (MGC)). interfacial properties were optimized obtain highly stable AL-CAT, SL-GC-CAT, SL-MGC-CAT dispersions, confocal microscopy confirmed presence composites. Assessment hydrogen peroxide decomposition ability revealed that applying process not only enhanced colloidal but also augmented activity reusability CAT. In particular, use MGC has led significant advances, indicating potential for industrial biomedical applications. Overall, findings highlight advantages using processes maintain as well provide important data development processable enzyme-based nanoparticle systems combat species.

Language: Английский

Protein-cell conjugates as artificial surface display for interfacial biocatalysis DOI Creative Commons
Xiankun Wu, Henrik Karring, Zhongkai Wang

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

We developed an artificial interface display strategy that overcomes the longstanding challenges of cellular fragility and enzyme instability in whole-cell interfacial catalysis by engineered living E. coli cells with interface-active proteins.

Language: Английский

Citations

0
Halogen Bonding-Driven Supramolecular Polymers Based on Pillararenes for Efficient Iodine Capture DOI

Chunli Song,

Menghao Li,

Gengxin Wu

et al.

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1905 - 1913

Published: April 16, 2025

Language: Английский

Citations

0
Upgrading the Bioinspired Iron-Polyporphyrin Structures by Abiological Metals Toward New-Generation Reactive Oxygen Biocatalysts DOI
Qian Li,

Zhenyang Zhao,

Ting Wang

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Developing artificial enzymes based on organic molecules or polymers for reactive oxygen biocatalysis has broad applicability. Here, inspired by heme-based enzyme systems, we construct the abiological iron group metal-based polyporphyrin (Ru/Os-coordinated porphyrin-based biocatalyst, Ru/Os-PorBC) to serve as a new generation of efficient and versatile species (ROS)-related biocatalyst. Due structural benefits, including excellent electron configuration, appropriate bandgap, optimized adsorption activation reaction intermediates, Ru/Os-PorBC shows unparalleled ROS-production activities regarding maximum rate turnover numbers, which also demonstrates superior pH temperature adaptability compared natural enzymes. Impressively, Os-PorBC manifests most efficacious capabilities, surpassing not only Ru/Fe-PorBC but existing state-of-the-art ROS-related Our findings provide pivotal direction developing next-generation polyporphyrin-based biocatalysts, setting stage era upgrading metalloenzymes metals.

Language: Английский

Citations

2
Monomeric, Oligomeric, Polymeric, and Supramolecular Cyclodextrins as Catalysts for Green Chemistry DOI Creative Commons
Makoto Komiyama

Research, Journal Year: 2024, Volume and Issue: 7

Published: Jan. 1, 2024

This review comprehensively covers recent developments of cyclodextrin-mediated chemical transformations for green chemistry. These cyclic oligomers glucose are nontoxic, eco-friendly, and recyclable to accomplish eminent functions in water. Their most important feature is form inclusion complexes with reactants, intermediates, and/or catalysts. As a result, their cavities serve as sterically restricted apolar reaction fields promote the efficiency selectivity reactions. Furthermore, unstable reagents intermediates protected from undesired side The scope applications has been further widened through covalent or noncovalent modifications. Combinations them metal catalysis especially successful. In terms these effects, various reactions achieved high yield so that valuable chemicals synthesized multiple components one-pot cyclodextrin units orderly assembled polymers show cooperation advanced properties. Recently, cyclodextrin-based metal–organic frameworks polyoxometalate–cyclodextrin have fabricated employed unique applications. Cyclodextrins fulfill many requirements chemistry should make enormous contributions this growing field.

Language: Английский

Citations

1
Synthesis of supramolecular polymers with calix[4]arene and β-cyclodextrin and their application in heavy metal ion absorption DOI Creative Commons

Jian‐Jian Bian,

S. C. Tang,

Jiao Miao

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(48), P. 35697 - 35703

Published: Jan. 1, 2024

Two categories of supramolecular polymer monomers were produced by introducing the ureidopyrimidone quadruple-hydrogen bonding assemblies on calix[4]arene and β-cyclodextrin host units. The adsorption capacity these polymers for different metal ions was investigated static adsorption. results showed that at pH = 6 when equilibrium reached, with calixarene as main body adsorbed up to 99% Pb

Language: Английский

Citations

0
Optimization of Interfacial Properties Improved the Stability and Activity of the Catalase Enzyme Immobilized on Plastic Nanobeads DOI Creative Commons
Szilárd Sáringer,

Gergő Terjéki,

Árpád Varga

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(31), P. 16338 - 16348

Published: July 27, 2024

The immobilization of catalase (CAT), a crucial oxidoreductase enzyme involved in quenching reactive oxygen species, on colloids and nanoparticles presents promising strategy to improve dispersion storage stability while maintaining its activity. Here, the CAT onto polymeric (positively (AL) or negatively (SL) charged) was implemented directly via surface functionalization with water-soluble chitosan derivatives (glycol (GC) methyl glycol (MGC)). interfacial properties were optimized obtain highly stable AL-CAT, SL-GC-CAT, SL-MGC-CAT dispersions, confocal microscopy confirmed presence composites. Assessment hydrogen peroxide decomposition ability revealed that applying process not only enhanced colloidal but also augmented activity reusability CAT. In particular, use MGC has led significant advances, indicating potential for industrial biomedical applications. Overall, findings highlight advantages using processes maintain as well provide important data development processable enzyme-based nanoparticle systems combat species.

Language: Английский

Citations

0