Results 21 to 30 of about 39,253 (260)

Low-energy binding agent for stone wool-based products [PDF]

open access: yesНанотехнологии в строительстве
Introduction. The primary objective of this study is to reduce the energy consumption involved in manufacturing mineral wool products by developing an innovative binder based on modified epoxy compounds. To achieve this objective, the potential use of
Aleksey D. Zhukov   +4 more
doaj   +1 more source

Natural Products in Drug Discovery: Antibacterial and Antifungal Activity of Essential Oil of Compound Isolated from Senecio royleanus

open access: yesJournal of Pure and Applied Microbiology, 2019
Natural products are an excellent source of therapeutic products which has led to the discovery of many important drugs that play an important role in the treatment of various human diseases.
Chandra Mohan Singh Bisht   +7 more
doaj   +1 more source

Cytotoxic and antimicrobial activities of two new sesquiterpenoids from red sea brittle star Ophiocoma dentata

open access: yesScientific Reports, 2022
Bioactive compounds were extracted from a locally available brittle star; Ophiocoma dentata, collected from the Red Sea, Egypt. Two new sesquiterpenoids; 8, 11-epoxy-9(15)-himachaladiene-4-ol (O8-ophiocomane) and, 11-epoxy-9(15)-himachaladiene-4-ol (O7 ...
Shaymaa E. El Feky   +7 more
doaj   +1 more source

Monoterpenoid Indole Alkaloids from Alstonia yunnanensis and Their Cytotoxic and Anti-inflammatory Activities

open access: yesMolecules, 2012
The 80% ethanol extract of Alstonia yunnanensis afforded five new monoterpenoid indole alkaloids: 11-hydroxy-6,7-epoxy-8-oxo-vincadifformine (1), 14-chloro-15-hydroxy- vincadifformine (2), perakine N4-oxide (3), raucaffrinoline N4-oxide (4), and vinorine
Guobiao Liang   +5 more
doaj   +1 more source

Effect of Incorporation of Inhibitor Loaded Mesoporous Silica on the Corrosion Behavior of Epoxy Coatings [PDF]

open access: yesJournal of Ultrafine Grained and Nanostructured Materials, 2013
In this research, mesoporous silica was applied as the host of corrosion inhibitor (molybdate). The loaded mesoporous silica was dispersed in an epoxy matrix. The composite was then coated on the mild steel plate.
Mahdi Yeganeh   +2 more
doaj   +1 more source

Synthesis and Properties of Peroxy Oligomers Obtained by Telomerization Effects of the Presence of Bases

open access: yesEurasian Chemico-Technological Journal, 2003
New bifunctional oligomers bearing peroxy groups have been synthesized by telomerization in one step reaction. For obtaining oligoperoxides (PO) by telomerization method, epoxide compounds will react with substances containing labile hydrogen atom ...
M. M. Bratychak   +2 more
doaj   +1 more source

A New Bioactive Cembranolide Sarcophytonolide V from Bornean Soft Coral Genus

open access: yesNatural Product Communications, 2019
A new cembranolide diterpene, sarcophytonolide V ( 1 ), along with 6 known compounds, isosarcophytonolide D ( 2 ), (4 Z ,8 S *,9 R *,12 E ,14 E )-9-hydroxy-1-(prop-1-en-2-yl)-8,12-dimethyl-oxabicyclo[9.3.2]-hexadeca-4,12,14-trien-18-one ( 3 ), (7 E ,11 E
Kazuki Tani   +3 more
doaj   +1 more source

Comparative Analysis of the Definition of StressState of Epoxy Compoundsby Hydrostatic Shrinkage and Tenzometric Deformation

open access: yesФізика і хімія твердого тіла, 2017
The comparative analysis of definition of stress state of epoxy compounds by hydrostatic shrinkage and tensometric deformationhas been done. The results of the shrinkage coefficient depending on the selected calculation formula have been shown.Key words ...
H. O. Sirenko   +3 more
doaj   +1 more source

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

open access: yesFEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan   +11 more
wiley   +1 more source

Über die Synthese neuer Epoxyverbindungen

open access: yesCHIMIA, 1962
Firstly, the different types of epoxy compounds are considered : • Glycidyl ethers, esters, and amines. • Epoxydation products: a) linear aliphatic epoxides, epoxidised fatty acids and fatty acid derivatives and epoxidised polybutadienes; b ...
Hans Batzer, Erwin Nikles
doaj   +1 more source

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