Results 11 to 20 of about 59,626 (307)

Preparation and properties of polyvinyl alcohol/calcium phosphate composite bone cement [PDF]

open access: yesJournal of International Medical Research
Background The inherent brittleness of calcium phosphate cement has limited its clinical application. Polyvinyl alcohol fibers have been demonstrated to enhance the tensile toughness of concrete matrices.
Shengliang He   +9 more
doaj   +2 more sources

Graphene-based electrocatalysts for advanced energy conversion

open access: yesGreen Energy & Environment, 2023
Graphene-based nanocatalysts have appealed much interest as advanced electrocatalysts toward energy conversion reactions due to their outstanding electrocatalytic performance from the distinctive chemical composites and strong synergistic effects. Aiming
Pingping Yang   +4 more
doaj   +1 more source

Electrochemical Behavior of β-Cyclodextrin-Ni-MOF-74/Reduced Graphene Oxide Sensors for the Ultrasensitive Detection of Rutin

open access: yesMolecules, 2023
Rutin, as a biological flavonoid glycoside, has very important medicinal value. The accurate and rapid detection of rutin is of great significance. Herein, an ultrasensitive electrochemical rutin sensor based on β-cyclodextrin metal–organic framework ...
Li Zhang   +5 more
doaj   +1 more source

Comparative study of Conplast SP 430 and Polycarboxylic Ether based super plasticizer on M50 grade PVA-FRC [PDF]

open access: yesE3S Web of Conferences, 2021
The properties of conventional concrete is improved by addition of fiber in it. By addition of these fibers ductility of concrete is enhanced and brittleness of concrete reduced.
Naik G. Prashanth   +2 more
doaj   +1 more source

Toxicity of polyvinyl alcohols in medicinal chemistry

open access: yesMANAS: Journal of Engineering, 2021
Polyvinyl alcohol (Chemical Abstracts Service No: 9002-89-5), biodegradable, biocompatible, water-soluble, odorless, tasteless, transparent, white to creamy granular or powder appearance, and is a synthetic hydroxy polymer used in a broad variety of ...
Orkun Dalyan   +2 more
doaj   +1 more source

Polyvinyl alcohol improves resistance of epoxy-treated bovine pericardium to calcification in vitro

open access: yesТрансплантология (Москва), 2023
Background. Around half of bioprosthetic heart valves become dysfunctional 15 years postimplantation because of structural valve deterioration notable for the degradation and calcification of the prosthetic tissue.
A. E. Kostyunin   +6 more
doaj   +1 more source

Fragmentation of microspheres after bronchial artery injection: a case report and review of the literature

open access: yesJournal of Medical Case Reports, 2021
Background Massive hemoptysis due to aspergilloma is a rare but life-threatening complication. Bronchial artery embolization is recommended as a definitive treatment for massive hemoptysis.
Wei Luo, Tongchen Hu, Yu Mao, Qi Yu
doaj   +1 more source

A self-healing coating based on facile pH-responsive nanocontainers for corrosion protection of magnesium alloy

open access: yesJournal of Magnesium and Alloys, 2022
The preparation of pH-responsive nanocontainers by typical silane modification of the mesoporous silica nanoparticle (MSN) surface is usually high-cost, complex, and time-consuming, which remains a great challenge for effective corrosion protection of ...
Yuejun Ouyang   +5 more
doaj   +1 more source

Investigating the effect of graphene oxide nanosheets on the barrier properties of high density polyethylene coated by layer-by-layer assembly method [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2023
Hypothesis: A nanocomposite layer including graphene nanosheets could be used to enhance the barrier properties of high density polyethylene through a layer-by-layer assembly method.
Ehsan Sharghi   +3 more
doaj   +1 more source

When the Political Spotlight is On: Social Evaluations of Ri Sŭnggi and Ryǒ Kyǒnggu, Two Chemical Engineers in North Korea [PDF]

open access: yesInternational Journal of Korean History, 2021
Dr. Ri Sŭnggi is celebrated alongside vinalon (also known as vinylon) in North Korea. As a synthetic fiber produced from polyvinyl alcohol, vinalon was invented by the research team to which Ri Sŭnggi belonged in 1939, and industrial production began in ...
Eunsung Cho
doaj   +1 more source

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