Results 61 to 70 of about 160,911 (301)

Responses of Zea mays L. Cultivars to PEG induced Drought Stress [PDF]

open access: yesJournal of Stress Physiology & Biochemistry
Water deficit stress is one major environmental constraint having a devastating impact on crop productivity. Improving plant tolerance to drought is imperative to ensure food security.
Rozina Yendrembam   +2 more
doaj  

New Chemical Constituents from the Bark of Dendropanax morbifera Leveille and Their Evaluation of Antioxidant Activities

open access: yesMolecules, 2019
Four new constituents, as cis-6-oxogeran-4-enyl-10-oxy-O-β-arabinopyranosyl-4′-O-β-arabinopyranosyl-2″-octadec-9‴,12‴,15‴-trienoate (1), geran-3(10)-enyl-1-oxy-O-β-arabinopyranosyl-4′-O-β-arabinopyranosyl-2″ ...
Ill-Min Chung   +7 more
doaj   +1 more source

Synthesis, in vitro safety and antioxidant activity of new pyrrole hydrazones

open access: yesActa Pharmaceutica, 2020
Six new N-pyrrolylhydrazide hydrazones were synthesized under micro synthesis conditions, assuring about 59–93 % yield, low harmful emissions and reagent economy. The structures of the new compounds were elucidated by melting points, TLC characteristics,
Tzankova Diana   +5 more
doaj   +1 more source

Cobalt Single‐Atom Nanozyme for Enhanced Intestinal Radioprotection and Tumor Radiosensitization via Bidirectional ROS Modulation

open access: yesAdvanced Science, EarlyView.
Orally administered, pH‐responsive Co‐SAN exerts dual functions: in the alkaline intestinal milieu, it scavenges reactive oxygen species (ROS) and suppresses the PI3K/AKT pathway and NETs formation, thus providing radioprotection; whereas in the acidic tumor microenvironment, it generates ROS and alleviates hypoxia, thereby enhancing radiosensitization.
Shengqi Yin   +13 more
wiley   +1 more source

Avaliação da atividade antioxidante da casca e torta de noz-pecã [Carya illinoinensis (Wangenh) C. Kock] [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Programa de Pós-graduação em Ciência dos AlimentosO processamento da noz-pecã resulta em subprodutos, como a casca, comercializada para preparar chá e a torta ...
Prado, Ana Cristina Pinheiro do
core  

A Disulfide‐Sticker Strategy for Marine Adhesive Coatings: From Deciphering Self‐Assembly Mechanism to Functional Application in Hair Regeneration

open access: yesAdvanced Science, EarlyView.
A disulfide‐sticker strategy, coupled with Ca2+ coordination, drives the hierarchical self‐assembly of a recombinant scallop adhesive protein into fishnet‐like nanostructures, affording a coating with versatile wet adhesion and intrinsic antioxidant activity. This biocompatible coating markedly promotes hair regeneration by activating follicular niches,
Lulu Wang   +7 more
wiley   +1 more source

The efficiency of DPPH as a polarising agent for DNP-NMR spectroscopy [PDF]

open access: yesRSC Advances, 2012
The free radical 2,2-diphenyl-1-pycrylhydrazyl (DPPH) was tested as a polarising agent for fast dissolution dynamic nuclear polarisation (DNP) NMR spectroscopy. DPPH was found to be reasonably soluble in sulfolane and the optimum concentration for DNP is 20-40 mM depending upon whether short polarisation times or the maximum signal intensity is needed.
Lloyd, Lumata   +7 more
openaire   +2 more sources

Unraveling Bone‐Skin Crosstalk Enables miRNA Nanoformulation for Cutaneous Neurovascular Reconstruction in Diabetic Mice

open access: yesAdvanced Science, EarlyView.
This study unravels that bone fracture accelerates diabetic wound healing by releasing exosomal microRNA (miR‐130b‐3p). To mimic this bone‐skin crosstalk, we engineered a self‐assembling agomir‐130b‐3p nanocomplex. Delivered via a photocrosslinkable hydrogel, this bio‐inspired therapy provides sustained localized agomir release.
Tao Shen   +14 more
wiley   +1 more source

Flavonoids, cytotoxic, antioxidant and antibacterial activities of Evax pygmaea

open access: yesPharmaceutical Biology, 2017
Context: Phytochemical study and biological potential of Evax pygmaea (L.) Brot. (Asteraceae) are reported for the first time. Objective: To identify the secondary metabolites of Evax pygmaea and to determine its antioxidant, antibacterial and cytotoxic ...
Assia Khalfallah   +7 more
doaj   +1 more source

The Potential of Liquid Tofu Waste in Increasing Antioxidant Activity of Robusta Green Coffee

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2018
Robusta is the most widely cultivated coffee in Indonesia (90% of the total Indonesian coffee production). Antioxidant activity and polyphenol content of Robusta coffee is higher than Arabica coffee or the other plants.
Ayu Rahmawati Sulistyaningtyas   +1 more
doaj   +1 more source

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