Results 51 to 60 of about 1,208,360 (336)

Selective Electrochemical Conversion of Biomass-derived Valeric Acid to Ethers/Esters

open access: yesInternational Journal of Electrochemical Science, 2018
To quantitatively convert biomass into value-added chemicals or biofuels is still a great challenge. Herein, we develop an efficient electrochemical method to convert the biomass-derived valeric acid into ethers (butyl methyl ether and butyraldehyde ...
Yuchen liu   +3 more
doaj   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo   +10 more
wiley   +1 more source

New [4 + 2] Cycloadditions of in situ Generated Indolyl Enol Ethers and Their Anions with Dimethyl Acetylenedicarboxylate: A One-Pot Access to 4-Alkoxy-Substituted Carbazoles

open access: yesCHIMIA, 1992
The 3-indolyl(methyl)methoxycarbenium tetrafluoroborates 1a?d were deprotonated with NaH to furnish in situ the highly reactive 3-indolyl enol ethers 2a or their corresponding 3-indolyl enol ether anions 2b.
Ulf Pindur, Martina Rogge
doaj   +2 more sources

Engineering Pendant Group Chemistry to Control Hydrophilicity and Oxidative Degradation of Thioketal‐Based Biomaterials

open access: yesAdvanced Functional Materials, EarlyView.
Thioketal (TK) polymers are promising biomaterials due to their selective biodegradation by reactive oxygen species (ROS), but they respond slowly to physiologic doses of ROS. Here, the TK bond's pendant groups are modified to enhance the degradation of TK‐based implants both in vitro and in vivo.
Karina A. Bruce   +6 more
wiley   +1 more source

The synthesis, separation, and identification of the methyl ethers of arabinose and their derivatives

open access: yes, 1967
A study has been made of various methods available for the identification and separation of the methyl ethers of arabinose. Gas–liquid partition chromatography has been used to separate the acetylated glycosides and the acetylated alditols of the methyl ...
J. K. N. Jones, S. C. Williams
core   +1 more source

Engineering of Glioblastoma‐Derived Biomimetic Vesicles and Their Structural and Molecular Features

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT Biomimetic nanosystems and vesicles have arisen as a novel approach to design vesicular transport systems with diverse therapeutic potential. The ‘biomimetic’ strategy involves the integration of cell membrane components into lipid bilayers, conferring them with biological properties originating from the cell of origin. Until now, most studies
Noelia Hernández‐Lobato   +6 more
wiley   +1 more source

Novel Copper-Catalyzed Multicomponent Cascade Synthesis of Iminocoumarin Aryl Methyl Ethers

open access: yes, 2016
A copper(I)-catalyzed one-pot synthesis of iminocoumarin aryl methyl ethers has been developed from ynal, phenol, and sulfonyl azide at ambient conditions via a cascade [3 + 2]-cycloaddition, 1,3-pseudopericyclic ketenimine rearrangement, 1,4-conjugate ...
Tharmalingam Punniyamurthy (1490761)   +1 more
core   +2 more sources

Design and Synthesis of Peptide‐Polyester Conjugates for Cell‐Mediated Scaffold Degradation

open access: yesAdvanced Healthcare Materials, EarlyView.
This work describes polycaprolactone (PCL)‐based biomaterials engineered to degrade in response to cell‐secreted proteases. A fast‐degrading peptide (Fast) sequence is integrated into a PCL conjugate backbone to produce a biomaterial that is selectively degraded by multiple cell types compared to its scrambled control (ScrFast).
Korina Vida G. Sinad   +7 more
wiley   +1 more source

High-performance liquid chromatographic separation of surface flavonoid aglycones in Artemistia annua L. and Artemisia vulgaris L [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
External flavonoid aglycones from Artemisia annua L. and Artemisia vulgaris L. were analyzed by the HPLC method. The mobile phase was composed of t-butanol-methanol- 20 mmol l-1 phosphate buffer, pH 3.22.
Nikolova Milena   +2 more
doaj   +1 more source

Long‐Term Hydrophilic, Anti‐Clotting, and Anti‐Fibrotic Dynamic Covalent Silicone‐Based Biomaterials

open access: yesAdvanced Healthcare Materials, EarlyView.
Dynamic covalent crosslinking of a Schiff‐base silicone elastomer with hydrazide‐functionalized polymers is demonstrated to improve the long‐term hydrophilicity as well as the anti‐fouling and anti‐clotting properties of PDMS implants. The hydrazone‐functionalized material prevents hydrophobic recovery, resists clotting, and significantly reduces ...
Norma A. Garza Flores   +12 more
wiley   +1 more source

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