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  • Article
  • Open Access
2 Citations
3,068 Views
15 Pages

Engineering the Active Site Lid Dynamics to Improve the Catalytic Efficiency of Yeast Cytosine Deaminase

  • Hanzhong Deng,
  • Mingming Qin,
  • Zhijun Liu,
  • Ying Yang,
  • Yefei Wang and
  • Lishan Yao

Conformational dynamics is important for enzyme catalysis. However, engineering dynamics to achieve a higher catalytic efficiency is still challenging. In this work, we develop a new strategy to improve the activity of yeast cytosine deaminase (yCD)...

  • Review
  • Open Access
2 Citations
2,392 Views
31 Pages

Prussian Blue Analogues and Their Derivatives for the Oxygen Evolution Reaction: A Review on Active Site Engineering Strategies

  • Zhen Cao,
  • Haozhe Shi,
  • Tingting Zhou,
  • Wenhui Yan,
  • Jiahong Song,
  • Pengqi Feng,
  • Kaili Wang and
  • Zaiyong Jiang

28 October 2025

The oxygen evolution reaction (OER) is a kinetic bottleneck in electrochemical water splitting, creating an urgent need for the development of efficient electrocatalysts. Prussian blue analogues (PBAs), a significant class of inorganic coordination p...

  • Review
  • Open Access
25 Citations
4,328 Views
16 Pages

21 January 2021

Two-dimensional-layered transition metal dichalcogenides (2D-layered TMDs) are a chemically diverse class of compounds having variable band gaps and remarkable electrochemical properties, which make them potential materials for applications in the fi...

  • Article
  • Open Access
6 Citations
6,432 Views
12 Pages

Tackling Critical Catalytic Residues in Helicobacter pylori L-Asparaginase

  • Maristella Maggi,
  • Laurent R Chiarelli,
  • Giovanna Valentini and
  • Claudia Scotti

27 March 2015

Bacterial asparaginases (amidohydrolases, EC 3.5.1.1) are important enzymes in cancer therapy, especially for Acute Lymphoblastic Leukemia. They are tetrameric enzymes able to catalyze the deamination of L-ASN and, to a variable extent, of L-GLN, on...

  • Review
  • Open Access
386 Views
23 Pages

Metal–Organic Framework-Derived Electrocatalysts for Rechargeable Zinc–Air Batteries

  • Shiqi Zhong,
  • Zhiqiang Liu,
  • Xiaolong Li,
  • Fancheng Meng,
  • Xiangfeng Wei and
  • Jiehua Liu

Rechargeable zinc–air batteries (ZABs) are still impeded by the intrinsically sluggish kinetics of oxygen reduction and evolution reactions (ORR/OER) and by the instability or prohibitive price of state-of-the-art noble metal catalysts. Metal&n...

  • Review
  • Open Access
6 Citations
4,094 Views
13 Pages

8 September 2020

Dye-sensitized solar cells (DSSCs) have emerged as promising alternatives to traditional silicon-based solar cells due to their relatively high conversion efficiency, low cost, flexibility, and environmentally benign fabrication processes. In DSSCs,...

  • Feature Paper
  • Article
  • Open Access
452 Views
13 Pages

23 January 2026

Facet engineering has emerged as a promising approach to tailor the catalytic performance of metal oxides for environmental electrocatalysis. Herein, we synthesized spinel Co3O4 nanocrystals with predominantly exposed {110}, {111}, and {112} facets t...

  • Article
  • Open Access
7 Citations
2,457 Views
12 Pages

Enhanced Photocatalytic Activity of Two-Dimensional Polar Monolayer SiTe for Water-Splitting via Strain Engineering

  • Di Gu,
  • Wen Qin,
  • Sumei Hu,
  • Rong Li,
  • Xingyuan Chen,
  • Xiaoma Tao,
  • Yifang Ouyang and
  • Weiling Zhu

27 March 2023

A two-dimensional (2D) polar monolayer with a polarization electric field can be used as a potential photocatalyst. In this work, first principle calculations were used to investigate the stability and photocatalytic properties of 2D polar monolayer...

  • Article
  • Open Access
27 Citations
7,044 Views
13 Pages

19 March 2018

Adipic acid is an important raw chemical for the commercial production of polyamides and polyesters. The traditional industrial adipic acid production utilizes nitric acid to oxidize KA oil (mixtures of cyclohexanone and cyclohexanol), leading to the...

  • Review
  • Open Access
4 Citations
3,156 Views
13 Pages

Behind the Scenes of PluriZyme Designs

  • Ana Robles-Martín,
  • Sergi Roda,
  • Rubén Muñoz-Tafalla and
  • Victor Guallar

3 January 2024

Protein engineering is the design and modification of protein structures to optimize their functions or create novel functionalities for applications in biotechnology, medicine or industry. It represents an essential scientific solution for many of t...

  • Article
  • Open Access
14 Citations
2,715 Views
14 Pages

Defective functional-group-endowed polymer semiconductors, which have unique photoelectric properties and rapid carrier separation properties, are an emerging type of high-performance photocatalyst for various energy and environmental applications. H...

  • Article
  • Open Access
27 Citations
4,837 Views
16 Pages

In Situ FTIR Spectroscopy for Scanning Accessible Active Sites in Defect-Engineered UiO-66

  • Vera V. Butova,
  • Videlina R. Zdravkova,
  • Olga A. Burachevskaia,
  • Andrei A. Tereshchenko,
  • Pavletta S. Shestakova and
  • Konstantin I. Hadjiivanov

18 May 2023

Three UiO-66 samples were prepared by solvothermal synthesis using the defect engineering approach with benzoic acid as a modulator. They were characterized by different techniques and their acidic properties were assessed by FTIR spectroscopy of ads...

  • Review
  • Open Access
22 Citations
5,009 Views
13 Pages

Laccase Engineering: Redox Potential Is Not the Only Activity-Determining Feature in the Metalloproteins

  • Misha Ali,
  • Priyanka Bhardwaj,
  • Hassan Mubarak Ishqi,
  • Mohammad Shahid and
  • Asimul Islam

23 August 2023

Laccase, one of the metalloproteins, belongs to the multicopper oxidase family. It oxidizes a wide range of substrates and generates water as a sole by-product. The engineering of laccase is important to broaden their industrial and environmental app...

  • Article
  • Open Access
6 Citations
6,153 Views
14 Pages

Efficient Base-Catalyzed Kemp Elimination in an Engineered Ancestral Enzyme

  • Luis I. Gutierrez-Rus,
  • Miguel Alcalde,
  • Valeria A. Risso and
  • Jose M. Sanchez-Ruiz

11 August 2022

The routine generation of enzymes with completely new active sites is a major unsolved problem in protein engineering. Advances in this field have thus far been modest, perhaps due, at least in part, to the widespread use of modern natural proteins a...

  • Article
  • Open Access
1 Citations
1,336 Views
15 Pages

28 December 2024

Constructing fast electron transfer pathways and abundant electro-active sites is an effective strategy to improve the oxygen evolution reaction (OER) performance of catalysts. Herein, structural engineering and dual-phase engineering were employed t...

  • Review
  • Open Access
1,747 Views
10 Pages

21 April 2025

Atomically dispersed catalysts, including single-atom, dual-atom, and periodic single-metal site catalysts, have revolutionized electrocatalysis by merging atomic precision with heterogeneous stability. This review traces their evolution from pioneer...

  • Feature Paper
  • Review
  • Open Access
4 Citations
4,809 Views
29 Pages

25 June 2025

Molybdenum disulfide (MoS2) is a promising earth-abundant electrocatalyst for the hydrogen evolution reaction (HER), attributed to its favorable electronic structure and chemical stability. Nevertheless, its application is limited by poor electrical...

  • Review
  • Open Access
107 Citations
13,194 Views
22 Pages

Human milk oligosaccharides (HMOs) signify a unique group of oligosaccharides in breast milk, which is of major importance for infant health and development. The functional benefits of HMOs create an enormous impetus for biosynthetic production of HM...

  • Feature Paper
  • Article
  • Open Access
15 Citations
5,863 Views
18 Pages

Integrated EDM and 4D BIM-Based Decision Support System for Construction Projects Control

  • Hassan Mohamed Ayman,
  • Sameh Youssef Mahfouz and
  • Ahmed Alhady

Project schedule monitoring and controlling are critical challenges of construction project management that are not adequately implemented, likely due to the predominance of earned value management and the lack of utilizing technology, such as BIM to...

  • Article
  • Open Access
1 Citations
1,382 Views
12 Pages

26 May 2025

A “thermal-annealing vacancy-filling” synthesis strategy was developed to engineer cobalt single-atom catalysts (Co-MoS2/RGO) for exceptional hydrogen evolution reaction (HER) performance. By anchoring atomic Co onto Frenkel defect-engine...

  • Article
  • Open Access
7 Citations
2,299 Views
11 Pages

Modifying the electronic structure of a catalyst through interface engineering is an effective strategy to enhance its activity in the hydrogen evolution reaction (HER). Interface engineering is a viable strategy to enhance the catalytic activity of...

  • Article
  • Open Access
3 Citations
4,881 Views
10 Pages

Improvement of the Pharmacological Properties of Maize RIP by Cysteine-Specific PEGylation

  • Ka-Yee Au,
  • Wei-Wei Shi,
  • Shuai Qian,
  • Zhong Zuo and
  • Pang-Chui Shaw

17 October 2016

To improve the pharmacological properties of maize ribosome-inactivating protein (maize RIP) for targeting HIV-infected cells, the previously engineered TAT-fused active form of maize RIP (MOD) was further engineered for cysteine-directed PEGylation....

  • Article
  • Open Access
908 Views
13 Pages

2 October 2025

Leghemoglobin (LegH), a plant-derived hemoprotein, is engineered for the first time as a standalone biocatalyst for carbene N–H insertion. Through semi-rational design, the K65P mutation in the heme pocket significantly enhances catalytic effic...

  • Article
  • Open Access
34 Citations
5,978 Views
21 Pages

11 August 2020

Water, which is an intrinsic part of the exhaust gas of combustion engines, strongly inhibits the methane oxidation reaction over palladium oxide-based catalysts under lean conditions and leads to severe catalyst deactivation. In this combined experi...

  • Review
  • Open Access
6 Citations
3,303 Views
32 Pages

Application of Defect Engineering via ALD in Supercapacitors

  • Tiange Gao,
  • Xiaoyang Xiao,
  • Zhenliang Dong,
  • Xilong Lu,
  • Liwen Mao,
  • Jinzheng Wang,
  • Yiming Liu,
  • Qingmin Hu and
  • Jiaqiang Xu

10 December 2024

Supercapacitors are a kind of energy storage device that lie between traditional capacitors and batteries, characterized by high power density, long cycle life, and rapid charging and discharging capabilities. The energy storage mechanism of supercap...

  • Article
  • Open Access
1 Citations
2,186 Views
12 Pages

Enhancing Paenibacillus sp. Cold-Active Acetyl Xylan Esterase Activity through Semi-Rational Protein Engineering

  • Keunho Ji,
  • Sondavid Nandanwar,
  • So Yeon Jeon,
  • Gyu Ri Yang,
  • Lixiao Liu,
  • Hyun-Myung Oh and
  • Hak Jun Kim

26 June 2024

Interest in protein engineering for the enzymatic production of valuable products, such as pharmaceutical compounds and biofuels, is growing rapidly. The cold-active acetyl xylan esterase from Paenibacillus sp. (PbAcE) presents unusually broad substr...

  • Article
  • Open Access
21 Citations
6,514 Views
15 Pages

Engineering the Enantioselectivity of Yeast Old Yellow Enzyme OYE2y in Asymmetric Reduction of (E/Z)-Citral to (R)-Citronellal

  • Xiangxian Ying,
  • Shihua Yu,
  • Meijuan Huang,
  • Ran Wei,
  • Shumin Meng,
  • Feng Cheng,
  • Meilan Yu,
  • Meirong Ying,
  • Man Zhao and
  • Zhao Wang

18 March 2019

The members of the Old Yellow Enzyme (OYE) family are capable of catalyzing the asymmetric reduction of (E/Z)-citral to (R)-citronellal—a key intermediate in the synthesis of L-menthol. The applications of OYE-mediated biotransformation are usu...

  • Article
  • Open Access
8 Citations
4,850 Views
23 Pages

Insights to the Structural Basis for the Stereospecificity of the Escherichia coli Phytase, AppA

  • Isabella M. Acquistapace,
  • Emma J. Thompson,
  • Imke Kühn,
  • Mike R. Bedford,
  • Charles A. Brearley and
  • Andrew M. Hemmings

AppA, the Escherichia coli periplasmic phytase of clade 2 of the histidine phosphatase (HP2) family, has been well-characterized and successfully engineered for use as an animal feed supplement. AppA is a 1D-6-phytase and highly stereospecific but tr...

  • Review
  • Open Access
7 Citations
3,794 Views
24 Pages

A Review of Perovskite Catalysts for the Simultaneous Elimination of Soot and NOx Emissions from Diesel Engine

  • Peng Chen,
  • Jia Fang,
  • Zinong Zuo,
  • Chengzhuang Zhang,
  • Kejian Wang,
  • Zhiqiang Han and
  • Wei Tian

9 December 2024

The problem of removing NOx and carbon particle emissions from diesel engines has been a challenge in the field of environmental protection, which is prompting people to actively explore ways to improve the efficiency of pollutant emission treatment....

  • Article
  • Open Access
1 Citations
2,301 Views
13 Pages

2 August 2023

Uridine diphosphate glycosyltransferases (UGTs) are known for promiscuity towards sugar acceptors, a valuable characteristic for host plants but not desirable for heterologous biosynthesis. UGTs characterized for the O-glycosylation of isoflavonoids...

  • Feature Paper
  • Article
  • Open Access
6 Citations
1,154 Views
14 Pages

Dual-Engineering Tailored Co3O4 Hollow Microspheres Assembled by Nanosheets for Boosting Oxygen Evolution Reaction

  • Yinghan Cui,
  • Shiduo Yang,
  • Jianqiang Zhu,
  • Zaidong Wang,
  • Sen Chen,
  • Jian Qi and
  • Huan Wang

The development of efficient, low-cost electrocatalysts for the oxygen evolution reaction (OER) is crucial for advancing sustainable hydrogen production through water splitting. This study presents a dual-engineering strategy to enhance the OER perfo...

  • Article
  • Open Access
856 Views
11 Pages

Amorphous MoSx Nanosheets with Abundant Interlayer Dislocations for Enhanced Photolytic Hydrogen Evolution Reaction

  • Xuyang Xu,
  • Zefei Wu,
  • Weifeng Hu,
  • Ning Sun,
  • Zijun Li,
  • Zhe Feng,
  • Yinuo Zhao and
  • Longlu Wang

13 September 2025

Transition metal dichalcogenides (TMSs), exemplified by molybdenum disulfide (MoS2), exhibit significant potential as alternatives to noble metals (e.g., Pt) for the hydrogen evolution reaction (HER). However, conventional synthesis methods of MoSx o...

  • Article
  • Open Access
2 Citations
2,033 Views
12 Pages

Micro-Structure Engineering in Pd-InOx Catalysts and Mechanism Studies for CO2 Hydrogenation to Methanol

  • Fengwang Zhao,
  • Gemeng Liang,
  • Xiaoli Yang,
  • Yang Lei,
  • Fayi Jin,
  • Leilei Xu,
  • Chuanhui Zhang,
  • Wei Jiang,
  • Haoxi Ben and
  • Xingyun Li

6 August 2024

Significant interest has emerged for the application of Pd-In2O3 catalysts as high-performance catalysts for CO2 hydrogenation to CH3OH. However, precise active site control in these catalysts and understanding their reaction mechanisms remain major...

  • Article
  • Open Access
9 Citations
5,552 Views
14 Pages

Quantitative Analysis of Carbon Emissions from Highway Construction Based on Life Cycle Assessment

  • Shuohan Gao,
  • Xuexin Liu,
  • Chunying Lu,
  • Haixiao Zhang,
  • Xinjun Wang and
  • Yaping Kong

10 July 2024

Carbon dioxide (CO2) emissions from the construction of road infrastructure have been of growing interest in recent years. This paper proposes a binary statistical method for highway construction based on project cost control and a construction manag...

  • Review
  • Open Access
25 Citations
7,886 Views
23 Pages

A Promiscuous Bacterial P450: The Unparalleled Diversity of BM3 in Pharmaceutical Metabolism

  • Sian Thistlethwaite,
  • Laura N. Jeffreys,
  • Hazel M. Girvan,
  • Kirsty J. McLean and
  • Andrew W. Munro

21 October 2021

CYP102A1 (BM3) is a catalytically self-sufficient flavocytochrome fusion protein isolated from Bacillus megaterium, which displays similar metabolic capabilities to many drug-metabolizing human P450 isoforms. BM3′s high catalytic efficiency, ease of...

  • Article
  • Open Access
1,710 Views
18 Pages

2 September 2025

Understanding the structure–function relationships of pyridoxal-5′-phosphate (PLP)-dependent transaminases is key to advancing pyridoxal-phosphate-dependent catalysis and engineering transaminases for industrial applications. Despite our...

  • Feature Paper
  • Article
  • Open Access
22 Citations
6,311 Views
10 Pages

Interface Engineering-Induced 1T-MoS2/NiS Heterostructure for Efficient Hydrogen Evolution Reaction

  • Helei Wei,
  • Aidong Tan,
  • Wenbo Liu,
  • Jinhua Piao,
  • Kai Wan,
  • Zhenxing Liang,
  • Zhipeng Xiang and
  • Zhiyong Fu

25 August 2022

Metal phase molybdenum disulfide (1T-MoS2) is considered a promising electrocatalyst for the hydrogen evolution reaction (HER). In this work, an interface engineering-induced strategy is reported to prepare a 1T-MoS2/NiS heterostructure. The 1T-MoS2/...

  • Article
  • Open Access
12 Citations
3,695 Views
15 Pages

Efficient Oxygen Vacancy Defect Engineering for Enhancing Visible-Light Photocatalytic Performance over SnO2−x Ultrafine Nanocrystals

  • Tiekun Jia,
  • Chenxi Sun,
  • Nianfeng Shi,
  • Dongsheng Yu,
  • Fei Long,
  • Ji Hu,
  • Jilin Wang,
  • Binbin Dong,
  • Jili Li and
  • Joong Hee Lee
  • + 2 authors

25 September 2022

Regardless of its good electron-transfer ability and chemical stability, pure Zn2SnO4 (ZSO) still has intrinsic deficiencies of a narrow spectral response region, poor absorption ability, and high photo-activated carrier recombination rate. Aiming to...

  • Article
  • Open Access
25 Citations
8,229 Views
17 Pages

25 April 2012

Studies related to the engineering of calcium binding sites of CGTase are limited. The calcium binding regions that are known for thermostability function were subjected to site-directed mutagenesis in this study. The starting gene-protein is a varia...

  • Review
  • Open Access
7 Citations
3,011 Views
18 Pages

Advancements in the Engineering Modification of Sucrose Phosphorylase

  • Shuru Ma,
  • Hongyu Zhang,
  • Tingting Lou and
  • Suying Wang

9 November 2024

Sucrose phosphorylase (SPase) is a member of the glycoside hydrolase family 13, catalyzing the reversible phosphorolysis of sucrose to produce α–glucose–1–phosphate and exhibiting transglycosylation activity toward multiple su...

  • Article
  • Open Access
10 Citations
3,530 Views
19 Pages

β-Galactosidase from Arthrobacter sp. 32cB (ArthβDG) is a cold-adapted enzyme able to catalyze hydrolysis of β-d-galactosides and transglycosylation reaction, where galactosyl moiety is being transferred onto an acceptor larger than a...

  • Feature Paper
  • Article
  • Open Access
5 Citations
2,576 Views
17 Pages

Feedback Inhibition of DszC, a Crucial Enzyme for Crude Oil Biodessulfurization

  • Rui P. P. Neves,
  • Bruno Araújo,
  • Maria J. Ramos and
  • Pedro A. Fernandes

13 April 2023

The Rhodococcus erythropolis (strain IGTS8) bacterium has a tremendous industrial interest as it can remove sulfur from crude oil through its four-enzyme (DszA-D) 4S metabolic pathway. DszC is one of the rate-limiting enzymes of the pathway and the o...

  • Review
  • Open Access
19 Citations
4,912 Views
17 Pages

13 September 2021

Theoretically, a DNA sequence-specific recognition protein that can distinguish a DNA sequence equal to or more than 16 bp could be unique to mammalian genomes. Long-sequence-specific nucleases, such as naturally occurring Homing Endonucleases and ar...

  • Article
  • Open Access
17 Citations
5,944 Views
20 Pages

The accumulation of polyethylene terephthalate (PET) seriously harms the environment because of its high resistance to degradation. The recent discovery of the bacteria-secreted biodegradation enzyme, PETase, sheds light on PET recycling; however, th...

  • Article
  • Open Access
23 Citations
3,333 Views
11 Pages

2 November 2022

Transition-metal sulfides exaggerate higher theoretical capacities and were considered a type of prospective nanomaterials for energy storage; their inherent weaker conductivities and lower electrochemical active sites limited the commercial applicat...

  • Article
  • Open Access
13 Citations
4,557 Views
14 Pages

Conformational Landscapes of Halohydrin Dehalogenases and Their Accessible Active Site Tunnels

  • Miquel Estévez-Gay,
  • Javier Iglesias-Fernández and
  • Sílvia Osuna

1 December 2020

Halohydrin dehalogenases (HHDH) are industrially relevant biocatalysts exhibiting a promiscuous epoxide-ring opening reactivity in the presence of small nucleophiles, thus giving access to novel carbon–carbon, carbon–oxygen, carbon–...

  • Article
  • Open Access
707 Views
15 Pages

Enhancement of the Peroxidase Activity of Metal–Organic Framework with Different Clay Minerals for Detecting Aspartic Acid

  • Chen Tian,
  • Lang Zhang,
  • Yali Yu,
  • Ting Liu,
  • Jianwu Chen,
  • Jie Peng,
  • Chu Dai and
  • Jinhua Gan

17 December 2025

The strategic engineering of metal–organic frameworks (MOFs) through integration with clay minerals offers a promising route to tailor their functional properties and expand their application scope. In this study, a series of clay-MOF composite...

  • Article
  • Open Access
20 Citations
7,295 Views
15 Pages

Fibrin Hydrogel Based Bone Substitute Tethered with BMP-2 and BMP-2/7 Heterodimers

  • Lindsay S. Karfeld-Sulzer,
  • Barbara Siegenthaler,
  • Chafik Ghayor and
  • Franz E. Weber

6 March 2015

Current clinically used delivery methods for bone morphogenetic proteins (BMPs) are collagen based and require large concentrations that can lead to dangerous side effects. Fibrin hydrogels can serve as osteoinductive bone substitute materials in non...

  • Article
  • Open Access
9 Citations
5,825 Views
8 Pages

Rational Engineering of a Flavoprotein Oxidase for Improved Direct Oxidation of Alcohols to Carboxylic Acids

  • Mathias Pickl,
  • Christoph K. Winkler,
  • Silvia M. Glueck,
  • Marco W. Fraaije and
  • Kurt Faber

12 December 2017

The oxidation of alcohols to the corresponding carbonyl or carboxyl compounds represents a convenient strategy for the selective introduction of electrophilic carbon centres into carbohydrate-based starting materials. The O2-dependent oxidation of pr...

  • Article
  • Open Access
11 Citations
3,813 Views
24 Pages

1 December 2023

Cytochrome P450 monooxygenases (CYPs; P450s) are a superfamily of heme-containing enzymes that are recognized for their vast substrate range and oxidative multifunctionality. CYP107 family members perform hydroxylation and epoxidation processes, prod...

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