Results 111 to 120 of about 35,683 (287)

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

Nanoparticle-enhanced ester-mineral oil blends: Electrical insulation boost with calcium copper titanate (CCTO) and boron nitrate (BN)

Next Materials
Mineral oil is the most common type of transformer oil, but it has a low fire point and does not break down in the environment, so it is not ideal. Biodegradable, non-toxic, and fireproof ester-based oils are considered second-generation insulators ...
Sujatha Balaraman, Chellappan Suresh, Rengaraj Madavan, Alagar Karthick   +3 more
doaj   +1 more source

Comparison of partial discharge inception voltages for ester and mineral oils under divergent fields

, 2013
Ester oils are making their way into the transformer market, but still some doubts exist about their ability to be successful fluids for high and extra-high voltage transformers.
CAVALLINI, ANDREA, AZCARRAGA, CARLOS, C. G. Azcarraga, A. Cavallini   +3 more
core   +1 more source

Sodium Ascorbate‐Accelerated Gelling Hydrogels With Rapid Self‐Mineralized Capacity for Chronic Wounds

Advanced Science, EarlyView.
An immunoregulatory hydrogel based on sodium ascorbate (SA)‐accelerated gelation and in situ self‐mineralization is prepared here. Such a hydrogel is constructed by mixing benzaldehyde‐ and cyanoacetate‐functionalized dextran with silver nitrate (AgNO3) and SA, enabling the ultrafast solidification and in situ self‐mineralization of silver ...
Xiaoya Ding, Wei Yang, Wenzhao Li, Guifang Xu, Yuanjin Zhao   +4 more
wiley   +1 more source

Have transport costs contributed to the relative decline of sub-Saharan African exports? Some preliminary empirical evidence [PDF]

From the mid-1950s to 1990, sub-Saharan Africa's share of global exports fell from 3.1 to under 1.2 percent, a decline that implies associated export earning losses of about $65 billion annually.
Yeats, Alexander J., Amjadi, Azita
core  

Vegetable, Fish and Mineral Oils Control Grapevine Powdery Mildew

, 2005
Laboratory, greenhouse and field experiments were performed on vegetable, fish and mineral oils to evaluate their phytotoxic effects on grapevine and their effectiveness in the control of grapevine powdery mildew.
J.A. Jacas, C. Cabaleiro, Hernández, S., B. Martín, S. Hernández, Cabaleiro, C., C. Silvarrey, Martín, B., Silvarrey, C., Jacas, J.A.   +9 more
core   +1 more source

Engineered Exosomal miR‐146a‐5p Reprograms BMSC Fate and Restores Mitochondrial Homeostasis in Glucocorticoid‐Induced Osteonecrosis of Femoral Head

Advanced Science, EarlyView.
Exosomal miR‐146a‐5p is identified as a pivotal regulator in steroid‐induced osteonecrosis. Its reduction activates NF‐κB signaling, compromises mitophagy, and disrupts mitochondrial bioenergetics, resulting in autophagic disequilibrium. Engineered exosomes delivering miR‐146a‐5p reinstate mitochondrial function, augment oxidative phosphorylation and ...
Zehui Lv, Xuejie Cai, Yiming Xu, Xingdong Yang, Ruoying Wang, Han Wang, Yixin Bian, Jiawei Xu, Jiao Lu, Lulu Liu, Yingjie Wang, Jibin Song, Bin Feng, Xisheng Weng   +13 more
wiley   +1 more source

Lesion Site‐Targeted Microspheres Modulate Nav1.7‐Related Signaling for Osteoarthritis Treatment

Advanced Science, EarlyView.
Cartilage‐targeted carbamazepine‐loaded WYRGRL‐modified composite microspheres (CBZ/WCOM) anchor to exposed type II collagen in osteoarthritic lesions and release carbamazepine under acidic conditions. This bind‐then‐release platform modulates Nav1.7‐related sodium signaling, Na⁺/Ca²⁺ exchanger‐associated Ca2+ dynamics, and heat shock protein 70 ...
Cheng Chen, Jiaying Li, Jinjin Ma, Xiaonan Yuan, Yao Xiao, Yang Zhang, Yuan Chen, Hao Jiang, Hui He, Jie Hu, Qianglong Chen, Jinniu Zhang, Bin Li, Yun Zhou, Fengxuan Han, Yong Wang   +15 more
wiley   +1 more source

Upcycling Water Pollutants Into Long‐Chain Polymers via Synergistic Interfacial Dechlorination and Organic Radical Stabilization

Angewandte Chemie, EarlyView.
HEO‐regulated electronic structure drives nonradical PI activation, promoting ETP‐mediated polymerization of 4CP into high‐molecular‐weight products with enhanced surface enrichment. Concurrent dechlorination occurs via radical coupling and •OHads attack, enabling efficient carbon retention and selective product evolution at the liquid–solid interface.
Ziwei Yao, Yidi Chen, Penghui Shao, Jian Liu, Xiaodan Wang, Kunsheng Hu, Xubiao Luo, Nanqi Ren, Xiaoguang Duan   +8 more
wiley   +2 more sources

Comparative study of statistical breakdown in mineral, synthetic and natural ester oils under AC voltage

, 2011
International audienceThis paper reports on a comparative study of statistical Breakdown Voltage (BDV) in mineral oils, natural esters (vegetable oils) issued from different origins, and one synthetic ester through the measurements of 32 BDV using ...
Dang, Viet Hung, Viet-Hung Dang, Perrier, Christophe, A. Beroual, C. Perrier, Beroual, Abderrahmane   +5 more
core   +1 more source