Results 51 to 60 of about 177,698 (261)

Catalase Activity in Anaplasma marginale [PDF]

Journal of Bacteriology, 1965
Wallace, W. R. (Louisiana State University, Baton Rouge), and G. T. Dimopoullos . Catalase activity in Anaplasma marginale . J. Bacteriol. 91: 309–311. 1965.—Extracts of erythrocytes infected with Anaplasma marginale were found to ...
W R, WALLACE, G T, DIMOPOULLOS
openaire   +2 more sources

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

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

Gold nanoparticles promote pathogenic Salmonella infection in mice by catalase-mimetic H2O2 scavenging

Nano Research
Endogenous H2O2 production by intestinal cells and commensal lactic acid bacteria plays an important role in reducing pathogenic infection. Few reports have addressed the influence of catalase-mimetic gold nanoparticles (AuNPs) on intestinal barrier ...
Xinyu Guo, Mingkai Bai, Yan Liu, Xiumei Jiang, Jun-Jie Yin, Haohao Wu, Suqin Zhu   +6 more
doaj   +1 more source

Calorimetric Estimation of Catalase Activity.

Experimental Biology and Medicine, 1953
SummaryA method is described for estimating catalase activity by the amount of heat liberated. The latter is estimated from the temperature rise of the solution, the maximum temperature being conveniently recorded by a clinical thermometer. The average temperature rise of the solution to which 0.01 ml of human blood was added was found to be about 12°C,
openaire   +2 more sources

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

EFFECT OF NITROGEN AND HUMIC FERTILIZERS ON THE BIOCHEMICAL STATE OF OIL‐CONTAMINATED CHERNOZEM

Юг России: экология, развитие, 2019
Aim. In this paper, we aim to assess the effect of nitrogen and humic fertilizers on the biochemical state of oil‐contaminated chernozem.Methods. In order to simulate the oil pollu‐ tion, chernozem was exposed to oil doses constituting 1, 5 and 10% of ...
T. V. Minnikova, S. I. Kolesnikov, T. V. Denisova   +2 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

Roles of Nitrogen Deep Placement on Grain Yield, Nitrogen Use Efficiency, and Antioxidant Enzyme Activities in Mechanical Pot-Seedling Transplanting Rice

Agronomy, 2020
Mechanical pot-seedling transplanting (PST) is an efficient transplanting method and deep nitrogen fertilization has the advantage of increasing nitrogen use efficiency.
Lin Li, Zheng Zhang, Hua Tian, Zhaowen Mo, Umair Ashraf, Meiyang Duan, Zaiman Wang, Shuli Wang, Xiangru Tang, Shenggang Pan   +9 more
doaj   +1 more source