Results 111 to 120 of about 1,208,360 (336)

Synthesis and Stereostructure-Activity Relationship of Novel Pyrethroids Possessing two Asymmetric Centers on a Cyclopropane Ring

open access: yesMolecules, 2019
2-Methylcyclopropane pyrethroid insecticides bearing chiral cyanohydrin esters or chiral ethers and two asymmetric centers on the cyclopropane ring, were synthesized.
Takashi Taniguchi   +4 more
doaj   +1 more source

Alloevodionol methyl ether

open access: yesActa Crystallographica Section E Structure Reports Online, 2001
The crystal structure determination of one of the substituted α-chromene components isolated in the hexane extraction of the fruit of the indigenous Australian tree Melicope ellyrana, the methyl ether of the known compound alloevodionol, is reported.
Smith, Graham   +3 more
openaire   +2 more sources

Synthesis, surfactant properties and antimicrobial activities of methyl glycopyranoside ethers

open access: yes, 2017
International audienceA series of amphiphilic methyl glucopyranoside ethers incorporating various alkyl chain lengths has been synthesized from commercially available methyl glucopyranosides following an acetalisation/hydrogenolysis sequence.
Lemaire, Marc   +9 more
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

Effects of Thermal Sterilization Conditions on Flavor and Lipid Oxidation of Sauced Duck Necks

open access: yesFoods
This study aimed to investigate the effect of thermal sterilization on the volatile flavor of sauced duck necks. The study revealed that thermal sterilization significantly reduced the content of unsaturated fatty acids (e.g., oleic acid C18:1n9c) in ...
Beibei Chu   +5 more
doaj   +1 more source

Chemodiversity of L. from Kyrgyzstan: Isocoumarins, Coumarins, and Flavonoids from Aerial Parts

open access: yesNatural Product Communications, 2008
A new accession of Artemisia dracunculus L., originating from Kyrgyzstan, has been analyzed for the first time regarding organ-specific accumulation of lipophilic compounds. Differences were found between leaves, stems, and inflorescences.
Tshering D. Bhutia   +1 more
doaj   +1 more source

Brain and Liver Dual‐Targeting Oridonin Nanoparticles to Enhance Aβ Clearance for Alzheimer's Disease Therapy

open access: yesAdvanced Science, EarlyView.
We developed a nanoparticle named OAF, which simultaneously targeted to both the brain and liver via the transferrin receptor 1 (TfR1) receptor, promoting lipoprotein receptor‐related protein 1 (LRP1) expression to enhance amyloid‐beta (Aβ) clearance. In AD mice model, OAF significantly reduced Aβ deposition and cognitive impairment, while a mitigating
Wenshuai Gong   +8 more
wiley   +1 more source

Acetonitrile-hydrochloric acid hydrolysis of gangliosides for high performance liquid chromatographic analysis of their long chain bases.

open access: yesJournal of Lipid Research, 1983
An improved method for the hydrolysis of long chain bases from gangliosides with aqueous acetonitrile-HCl is described. The long chain bases released from brain gangliosides were derivatized with biphenylcarbonylchloride and resolved by high performance ...
H Kadowaki   +4 more
doaj   +1 more source

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

Binary solvent participation in crystals of a multi-aromatic 1,2,3-triazole

open access: yesActa Crystallographica Section E: Crystallographic Communications
The X-ray crystal structure of a multi-aromatic substituted 1,2,3-triazole is presented, which shows an extensive three-dimensional hydrogen-bonding network involving two water molecules and two acetonitrile molecules. The structure of 4-{[(4-{[1-({[(3,4-
Jonathan Filley
doaj   +1 more source

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