Results 81 to 90 of about 270,169 (306)

Oxygen Vacancy‐Enriched Platinum Single‐Atom Nanozyme Wrapped in Nanoislands: Unlocking Catalytic Activity and Reprogramming Redox Microenvironment for Osteonecrosis Repair

Advanced Science, EarlyView.
CeO2‐x/Pt single‐atom nano‐island is constructed via low‐temperature reduction, featuring abundant oxygen vacancies and an island–sea structure. It delivers outstanding multi‐enzyme‐mimetic activity and ROS‐scavenging efficiency. Density functional theory reveals optimized electronic structures and reaction pathways.
Yang Zhu, Zehui Lv, Xuejie Cai, Penghui Wei, Dengliang Wang, Zhao Wang, Ruoying Wang, Yingjie Wang, Xingdong Yang, Yixin Bian, Jiawei Xu, Xisheng Weng, Liangfeng Wei   +12 more
wiley   +1 more source

The influence of high Cd2+ concentrations on lipid peroxidation and antioxidant system function of wheat (Triticum aestivum) and rye (Secale cereale) etiolated shoots [PDF]

Journal of Stress Physiology & Biochemistry, 2012
The influence of high Cd2+ concentrations on lipid peroxidation and antioxidant system function of winter wheat (Triticum aestivum) and rye (Secale cereale) etiolated shoots.
Kolesnichenko A.V., Kolesnichenko V.V.
doaj  

Mycobacterium tuberculosis Catalase Inhibits the Formation of Mast Cell Extracellular Traps

Frontiers in Immunology, 2018
Tuberculosis is one of the leading causes of human morbidity and mortality. Mycobacterium tuberculosis (Mtb) employs different strategies to evade and counterattack immune responses persisting for years.
Marcia Campillo-Navarro, Marcia Campillo-Navarro, Kahiry Leyva-Paredes, Luis Donis-Maturano, Gloria M. Rodríguez-López, Rodolfo Soria-Castro, Blanca Estela García-Pérez, Nahum Puebla-Osorio, Stephen E. Ullrich, Stephen E. Ullrich, Julieta Luna-Herrera, Leopoldo Flores-Romo, Héctor Sumano-López, Sonia M. Pérez-Tapia, Sonia M. Pérez-Tapia, Sergio Estrada-Parra, Iris Estrada-García, Rommel Chacón-Salinas, Rommel Chacón-Salinas   +18 more
doaj   +1 more source

SuFEx‐Enabled Reprogramming of Flavonoids for Selective α‐Glucosidase Covalent Inhibition

Advanced Science, EarlyView.
Selective inhibition of intestinal α‐glucosidase remains limited by poor enzyme specificity and off‐target metabolic effects. Here, SuFEx click chemistry is used to reprogram natural flavonoids into covalent inhibitors with enhanced α‐glucosidase selectivity and controlled reactivity. This strategy enables effective regulation of carbohydrate digestion
Fengyu Guo, Liwei Zhang, Minlong Wang, Yanjin Du, Tianyu Zhang, Hao Chen, Jiazeng Sun, Yang Yu, Zude He, Jie An, Xiaoxu Zhang, Weilin Lin, Fazheng Ren, Pengjie Wang, Ping Liu   +14 more
wiley   +1 more source

Restoring catalase activity in [PDF]

, 2010
Staphylococcus aureus subsp. anaerobius, a microaerophilic and catalase-negative bacterium, is the etiological agent of abscess disease, a specific chronic condition of sheep and goats, which is characterized by formation of necrotic lesions that are ...
Gustavo Domínguez-Bernal, José A. Orden, Orden, José A., Ricardo de la Fuente, Díez, Rosa M., Domínguez-Bernal, Gustavo, Martínez-Pulgarín, Susana, Susana Martínez-Pulgarín, Rosa M. Díez, de La Fuente, Ricardo   +9 more
core   +1 more source

Effect of nanoporous membranes thickness in electrochemical biosensing performance: application for the detection of a wound infection biomarker

Frontiers in Bioengineering and Biotechnology
Introduction: Nanoporous alumina membranes present a honeycomb-like structure characterized by two main parameters involved in their performance in electrochemical immunosening: pore diameter and pore thickness.
C. Toyos-Rodríguez, C. Toyos-Rodríguez, D. Valero-Calvo, D. Valero-Calvo, A. Iglesias-Mayor, A. Iglesias-Mayor, A. de la Escosura-Muñiz, A. de la Escosura-Muñiz   +7 more
doaj   +1 more source

A Sprayable Nanoplatform Breaks the Vicious Cycle of Diabetic Wounds via Photoactivated Antioxidant and Drug Delivery

Advanced Science, EarlyView.
A sprayable near‐infrared‐activated nanoplatform incorporating MXene, ZnHCF nanozyme, and deferoxamine efficiently breaks the vicious cycle of diabetic wounds. Upon irradiation, interfacial electron transfer and photothermal effects enhance multi‐enzyme activity, enabling explosive ROS elimination, alleviation of hypoxia, and controlled DFO release ...
Jiahao Guo, Yuanyuan Meng, Qixiang Gui, Xi‐Tao Yang, Yong Fan, Xiaodong Zhu   +5 more
wiley   +1 more source

Effect of drought stress and subsequent recovery on protein, carbohydrate contents, catalase and peroxidase activities in three chickpea (Cicer arietinum) cultivars [PDF]

, 2011
Drought stress is one of the major abiotic stresses in agriculture worldwide. This study was carried out to investigate the effects of drought stress and subsequent recovery on protein, carbohydrate content, catalase (CAT), and peroxidase (POX ...
Siosemardeh, A., Mafakheri, A., Struik, P.C., Bahramnejad, B., Sohrabi, Y.   +4 more
core  

Experimental Studies on Catalase Synthesis in Animals [PDF]

, 1973
A comparative study was made on the uptake of intra-peritoneally administered radioiron by catalase of blood, liver, and, bone marrow in guinea pigs and rabbits. Radioactivity of (59)Fe per catalase activity (c. p.
Yoshio MORITA, Morita, Yoshio
core   +1 more source

Influence of cadmium loading on the state of the antioxidant system in the organism of bulls

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2016
This article presents the results of research on the influence of cadmium loading on the state level of enzymatic and non-enzymatic antioxidant links of the antioxidant defense system of the organisms of young cattle, such as the activity of catalase ...
B. V. Gutyj, S. D. Mursjka, D. F. Hufrij, I. I. Hariv, N. D. Levkivska, N. V. Nazaruk, M. B. Haydyuk, O. B. Priyma, O. Y. Bilyk, Z. A. Guta   +9 more
doaj   +1 more source