A theoretic insight into the catalytic activity promotion of CeO2 surfaces by Mn doping

A new tendency toward the design of artificial enzymes based on nanostructures (nanodots, nanofibers, mesoporous materials) has emerged. On one hand, nanotechnology bestows self-catalytic nanoparticles with a specific activity to achieve efficient reactions with low number of by-products. On other hand, the nanoparticles may behave as nanometric scaffolds for hosting enzymes, promoting their catalytic activity and stability. In this case, enzyme immobilization requires the preservation of the catalytic activity by preventing enzyme unfolding and avoiding its aggregation. These approaches render many other advantages like hosting/storing enzymes in nanotechnological solid, liquid, and gel-like media. This chapter focuses on the most up-to-date approaches to manipulate or mimic enzyme activity based on nanotechnology, and offers examples of their applications in the most promising fields. It also gives new insight into the creation of reusable nanotechnological tools for enzyme storage.

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Metal-free graphene-based catalyst—Insight into the catalytic activity: A short review

Applied Catalysis A General ◽

10.1016/j.apcata.2014.11.041 ◽

2015 ◽

Vol 492 ◽

pp. 1-9 ◽

Cited By ~ 87

Author(s):

Huawen Hu ◽

John H. Xin ◽

Hong Hu ◽

Xiaowen Wang ◽

Yeeyee Kong

Keyword(s):

Catalytic Activity ◽

Short Review ◽

Metal Free ◽

Free Graphene ◽

Insight Into

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FeOx/FeP hybrid nanorods neutral hydrogen evolution electrocatalysis: insight into interface

Journal of Materials Chemistry A ◽

10.1039/c8ta02204f ◽

2018 ◽

Vol 6 (20) ◽

pp. 9467-9472 ◽

Cited By ~ 48

Author(s):

Jianwen Huang ◽

Ying Su ◽

Yadong Zhang ◽

Wenqi Wu ◽

Chunyang Wu ◽

...

Keyword(s):

Catalytic Activity ◽

Hydrogen Evolution ◽

Water Adsorption ◽

Neutral Hydrogen ◽

Interface Effect ◽

Tafel Slope ◽

Adsorption And Dissociation ◽

Insight Into

The introduction of the FeOx/FeP interface effect not only facilitates the water adsorption and dissociation in neutral HER, but also modifies the ΔG(H*) of FeP, exhibiting remarkable catalytic activity with a Tafel slope as low as 47 mV dec−1.

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Post-translational modifications of PRC2: signals directing its activity

Epigenetics & Chromatin ◽

10.1186/s13072-020-00369-1 ◽

2020 ◽

Vol 13 (1) ◽

Author(s):

Yiqi Yang ◽

Gang Li

Keyword(s):

Catalytic Activity ◽

Transcriptional Repression ◽

Essential Role ◽

Histone H3 ◽

Post Translational Modifications ◽

Polycomb Repressive Complex 2 ◽

Cellular Identity ◽

Organismal Development ◽

Biochemical Signals ◽

Insight Into

Abstract Polycomb repressive complex 2 (PRC2) is a chromatin-modifying enzyme that catalyses the methylation of histone H3 at lysine 27 (H3K27me1/2/3). This complex maintains gene transcriptional repression and plays an essential role in the maintenance of cellular identity as well as normal organismal development. The activity of PRC2, including its genomic targeting and catalytic activity, is controlled by various signals. Recent studies have revealed that these signals involve cis chromatin features, PRC2 facultative subunits and post-translational modifications (PTMs) of PRC2 subunits. Overall, these findings have provided insight into the biochemical signals directing PRC2 function, although many mysteries remain.

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