Results 71 to 80 of about 9,317 (210)

Different electrode modification protocols for evaluating the water-splitting properties of a P(V)-metalloporphyrin [PDF]

Journal of the Serbian Chemical Society
Water electrolysis is currently a notable research domain, having the identification of highly active, stable, and low-cost electrocatalysts as one of its most important pursuits.
Taranu Bogdan-Ovidiu
doaj   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

Packaging Technology and Science, EarlyView.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely, Young‐Teck Kim, Haibo Huang, Novitri Hastuti, Su Jung Hong   +4 more
wiley   +1 more source

The Unique Structure–Activity Relationship of Porphyrins and Clay Mineral Systems in Modern Applications: A Comprehensive Review [PDF]

Chemical and Biochemical Engineering Quarterly
Porphyrins are a group of organic heterocyclic macromolecules, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges. This unique and significant group of compounds has a special relationship with inorganic
J. Hassen, J. Silver
doaj   +1 more source

Enantioselective Enzyme-Catalyzed Aziridination Enabled by Active-Site Evolution of a Cytochrome P450 [PDF]

, 2015
One of the greatest challenges in protein design is creating new enzymes, something evolution does all the time, starting from existing ones. Borrowing from nature’s evolutionary strategy, we have engineered a bacterial cytochrome P450 to catalyze highly
Arnold, Frances H., Farwell, Christopher C., Hyster, Todd K., McIntosh, John A., Zhang, Ruijie K.   +4 more
core   +4 more sources

Metallic Axial Asymmetry in Dome‐Like Iron Porphyrins Boosts Advanced Oxidation Processes: Implication of Allosteric Effect of Heme Peroxidases

Small Structures, EarlyView.
A structure–activity relationship between dome‐deformation‐induced metallic axial asymmetry and catalytic efficiency in iron porphyrins was established, providing a molecular blueprint for designing high‐performance enzyme‐mimetic catalysts. The remarkable catalytic activity of heme enzymes originates from distinctive allosteric effects mediated by ...
Junhao Gao, Qiuhua Liu, Yusheng Zhang, Zhihong Fang, Wenping Guo, Zhenfang Zhang, Lei Bao, Tianyi Ma, Zaichun Zhou   +8 more
wiley   +1 more source

Immobilization of metalloporphyrin on functionalized nanoporous silica [PDF]

, 2014
SBA-15 nanoporous silica were prepared cooperation assembly of tetraethylorthosilicate precursor in the presence of poly (ethylene glycol)–block- poly (propylene glycol)–block- poly (ethylene glycol) copolymer surfactant and functionalized with (3 ...
Bakar, Mohd. Bakri, Endud, Salasiah, Saadon, Nurafiqah   +2 more
core  

The Hemoprotein Hhy1 Promotes Heme‐Dependent Catalase Activity of Ctt1

Molecular Microbiology, EarlyView.
A Schizosaccharomyces pombe strain deficient in heme (hem1Δ) and siderophore (Fc) biosynthesis, as well as high‐affinity iron (Fe) uptake (blue), was used to uncover the hemoprotein Hhy1 that promotes the heme‐dependent activity of the catalase Ctt1. In contrast, hhy1Δ cells exhibit reduced Ctt1 activity and increased sensitivity to oxidative stress ...
Tobias Vahsen, Samuel Plante, Berthy Mbuya, Simon Labbé   +3 more
wiley   +1 more source

Porous metal-metalloporphyrin gel as catalytic binding pocket for highly efficient synergistic catalysis

Nature Communications, 2019
Synergistic catalysis occurring in an enzyme pocket shows enhanced performance through supramolecular recognition and flexibility. Here the authors design an enzyme-mimic strategy to develop a Co(II) metal-metalloporphyrin gel with excellent ...
Weijie Zhang, James J. Dynes, Yongfeng Hu, Pingping Jiang, Shengqian Ma   +4 more
doaj   +1 more source

Amperometric Metronidazole Sensor Based on the Supermolecular Recognition by Metalloporphyrin Incorporated In Carbon Paste Electrode

Sensors, 2003
An amperometric metronidazole (MTZ) sensor using a glycosylated metalloporphyrin as a recognition element, which was incorporated in a carbon paste electrode, is reported. For the preparation of a MTZ-sensitive active material, 5, 10, 15, 20-tetrakis [2-(
Ru-Qin Yu, Guo-Li Shen, Can-Cheng Guo, Xiao-Bing Zhang, Fu-Chun Gong   +4 more
doaj   +1 more source

Effect of Strong Electron Correlation on the Efficiency of Photosynthetic Light Harvesting

, 2012
Research into the efficiency of photosynthetic light harvesting has focused on two factors: (1) entanglement of chromophores, and (2) environmental noise.
Mazziotti, David A.
core   +1 more source