Results 31 to 40 of about 48,688 (248)

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source

In-Vitro Antioxidant Activity of Avocado Fruit Oil in Erbil, Kurdistan Region

Eurasian Journal of Science and Engineering, 2022
Many human diseases are linked to the accumulation of free radicals. Antioxidants can scavenge free radicals, lessening their impact. As a result, searching for naturally occurring antioxidants in plants is critical.
Amani Tahsin, Rojan Arif, Esra Bayrakdar, Subasini Uthirapathy   +3 more
doaj   +1 more source

Stage‐Adaptive Janus Microneedle System for Redox‐Immune Regulation and Mitochondrial Protection in Infected Diabetic Wound Healing

Advanced Science, EarlyView.
ABSTRACT Infected diabetic wounds are sustained by a vicious cycle of hyperglycemia‐driven bacterial infection, persistent oxidative stress, and excessive inflammation, which collectively disrupt the ordered progression of tissue repair. Here, we engineered a stage‐adaptive Janus microneedle patch (MN‐FeSAC‐PPE) to enable a staged therapeutic process ...
Mengting Yin, Yu Zhang, Xinyu Qu, Jiayi Liu, Zhongyi Sun, Haibo Liu, Ziyan Chen, Jing Ru, Jingwen Han, Bingqiang Lu, Yan Lu, Yan Wang, Xinyu Zhao, Feng Chen   +13 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

Antioxidant Studies of Ayurvedic Medicine, Dhanwanthararishtam

Journal of Pharmacy and Bioallied Sciences
Background: Dhanwanthararishtam is a classical Ayurvedic medicine, primarily used for postnatal care and rejuvenation. Aim: The present study evaluates the antioxidant properties of the Ayurvedic medicine Dhanwanthararishtam, traditionally used for ...
Barri Indira Devi, J Kalaivannan, Sumathi Jones, CS Janaki, Dhastagir Sheriff, K Prabhu, Deepalakkshmi Balakrishnan, Angelin David Selvam   +7 more
doaj   +1 more source

Can an abts antioxidant test be performed without a spectrophotometer?

Cumhuriyet Science Journal, 2020
ABTS• +(2,2-azinobis- (3-ethylbenzothiazoline-6-sulphonic acid)) radical scavenging assay is widely used to determine the antioxidant activity of natural and synthetic substances.
Nesibe Arslan Burnaz, Zeynep Akar
doaj   +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

Antioxidant Activity of Essential Oil of Baeckea frutescens L. (Ujung Atap) and GC-MS (Gas Chromatography-Mass Spectrometery) Analysis

Journal of Food and Pharmaceutical Sciences
Ujung Atap plant (Baeckea frutescens L.) is a shrub that resembles a pine tree and is usually found in tropical hills, mountains, and coastal environments. B.
Nurkhasanah Mahfudh, Silvi Apriyani, Iin Narwanti   +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

Antioxidant activity and phenolic–flavonoid content of Phlomis pungens var. pungens collected in Erzincan (Türkiye)

Pharmata
Objective: In this study, the antioxidant capacity of the methanol:water (7:3, v/v) extract obtained from the aerial parts of Phlomis pungens var. pungens (PP), native to Erzincan province, Turkey, was evaluated.Methods: The antioxidant activity of the ...
Tuğrul Çağrı Akman, Samed Şimşek, Aleyna Kiliç   +2 more
doaj   +1 more source