Results 51 to 60 of about 31,060 (253)

Sterols affecting meiosis: novel chemical syntheses and the biological activity and spectral properties of the synthetic sterols

open access: yesJournal of Lipid Research, 1998
4,4-Dimethyl-5α-cholesta-8,14,24-trien-3β-ol (I) from human follicular fluid and 4,4-dimethyl-5α-cholesta-8,24-dien-3β-ol (II) from bull testes have been reported to activate meiosis in mouse oocytes (Byskov et al., 1995. Nature. 374: 559–562). Described
Benfang Ruan   +7 more
doaj   +1 more source

Borohydride electro-oxidation by Ag-doped lanthanum chromites

open access: yesJournal of Chemical Sciences, 2014
The electrocatalytic activity of Ag-doped lanthanum chromites electrode materials viz., LaCr0.4Ag0.6O3 and LaCr0.7Ag0.3O3 prepared by decomposing the precursor complex is studied. Pure LaCrO3 is synthesized by combustion route using oxalic acid as a fuel.
S SURESH BALAJI, A USHA, V V GIRIDHAR
openaire   +2 more sources

A Pt/MnV2O6 nanocomposite for the borohydride oxidation reaction

open access: yesJournal of Energy Chemistry, 2021
Abstract Problems associated with carbon support corrosion under operating fuel cell conditions require the identification of alternative supports for platinum-based nanosized electrocatalysts. Platinum supported on manganese vanadate (Pt/MnV2O6) was prepared by microwave irradiation method and characterized using X-ray diffraction, Fourier-transform
Jadranka Milikić   +9 more
openaire   +3 more sources

Timing Mechanotransduction: Mechanically Dynamic Biomaterials Reveal the Temporal Hierarchy of YAP/TAZ Control Nodes

open access: yesAdvanced Science, EarlyView.
This work develops dynamically softening polyacrylamide hydrogels for time‐resolved imaging during continuous mechanical transitions. The study revealed that mechanotransduction is biphasic; YAP/TAZ inactivation is driven by early loss of the nucleocytoskeletal continuum connecting subnuclear adhesions, F‐actin, and the nuclear envelope, coupled with ...
Alessandro Gandin   +12 more
wiley   +1 more source

Zwitterionic Acetylated Cellulose Nanofibrils

open access: yesMolecules, 2019
A strategy is devised to synthesize zwitterionic acetylated cellulose nanofibrils (CNF). The strategy included acetylation, periodate oxidation, Schiff base reaction, borohydride reduction, and a quaternary ammonium reaction. Acetylation was performed in
Jowan Rostami   +2 more
doaj   +1 more source

Enhancing the CO tolerance of Pt/C as PEM fuel cell anode catalyst by modifying the catalyst synthesis method [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2019
The most important challenge in Proton Exchange Membrane (PEM) fuel cells is poisoning of the anode catalyst in the presence of impurities, especially carbon monoxide (CO) in the hydrogen feed.
Shaker Kheradmandinia   +2 more
doaj   +1 more source

Electro-oxidation of Ethanol on Carbon Supported PtSn and PtSnNi Catalysts [PDF]

open access: yes, 2016
Even though platinum is known as an active electro-catalyst for ethanol oxidation at low temperatures (< 100 oC), choosing the electrode material for ethanol electro-oxidation is a crucial issue.
Hidayati, Nur, Scott, Keith
core   +2 more sources

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

open access: yesAdvanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang   +6 more
wiley   +1 more source

Borophene: Crucial Challenges and the Way Forward

open access: yesAdvanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li   +3 more
wiley   +1 more source

Au–NiZn/Ti Electrocatalyst for Efficient Sodium Borohydride Oxidation

open access: yesCrystals
Direct borohydride fuel cells (DBFCs) are emerging as a promising source of clean energy; however, their performance depends heavily on efficient anode catalysts for the oxidation reaction of sodium borohydride (BOR).
Tripura Ganti   +6 more
doaj   +1 more source

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