Results 41 to 50 of about 835 (215)

Sustainable Polymer Biocomposites for Food Packaging: Green Nanotechnology, Circular Plastic Upcycling and Smart Functional Materials

open access: yesPackaging Technology and Science, EarlyView.
Graphical abstract showing the development of biodegradable polymer biocomposites reinforced with natural fibres, green nanoparticles and waste‐plastic upcycling pathways toward sustainable smart food packaging materials ABSTRACT The fundamental hypothesis behind this review is that the combination of biodegradable polymer‐based biocomposites, which ...
Chandra Sekhar Espenti, Jaewoong Lee
wiley   +1 more source

Recent progress on the development of hydrogel‐based microneedles for transdermal drug delivery

open access: yesVIEW, EarlyView.
This study provides a comprehensive and up‐to‐date analysis of recent progress in HMN technology, covering fundamental transdermal delivery mechanisms and design principles, biomaterials used in HMN fabrication, drug loading and release strategies, and emerging therapeutic applications.
Mohammad Muhtasim Ittisaf   +5 more
wiley   +1 more source

First Base-Free Catalytic Wittig Reaction

open access: yes, 2015
The first base-free catalytic Wittig reaction utilizing readily available Bu3P (5 mol %) as an organocatalyst is reported. The initial Michael addition of the phosphine to a suitable acceptor substituted alkene ultimately results in the formation of an ...
Thomas Werner (10006)   +2 more
core   +1 more source

Thermal Degradation and Thermal Decomposition of Plasticized PVC Including POSS Additives for PVC Compounds: Mechanisms, Impact, and Performance of Standards

open access: yesJournal of Vinyl and Additive Technology, EarlyView.
Additives' structures. ABSTRACT Poly(vinyl chloride) has been a key polymeric material since its commercial production in 1931, demonstrating versatility across numerous industries due to its compatibility with various additives. PVC's inherent properties, flame retardance, durability, and recyclability make it ideal for building and construction ...
Stefano Gardi   +4 more
wiley   +1 more source

Pyridine‐Catalyzed Stereoselective Addition of Acyclic 1,2‐Diones to Acetylenic Esters: Synthetic and Theoretical Studies of an Unprecedented Rearrangement

open access: yes, 2008
A systematic study of the addition of various 1,2-acyclic diones to activated acetylenic esters catalyzed by pyridine under mild conditions is described. This reaction provides a new protocol for the stereoselective synthesis of 1,2-diaroyl maleates. The
Pillai, Abhilash N.   +2 more
core   +1 more source

Biochemical and structural characterization of a tail‐spike protein with depolymerase activity identified in a marine podovirus

open access: yesActa Crystallographica Section D, EarlyView.
The marine tail‐spike protein Dpo31 degrades the exopolysaccharide of its host and has structural features similar to those of other members of this protein class, despite similarity not being detected at the sequence level.Marine phages are, through the infection of their bacterial hosts, key regulators of microbiome and carbon fluxes in the ocean ...
Serena Sirigu   +7 more
wiley   +1 more source

Fluorometric Determination of Methylergonovine Maleate and Ergonovine Maleate in Tablets and Injections

open access: yesJournal of AOAC INTERNATIONAL, 1978
Abstract A column cleanup, followed by a shakeout and fluorometric determination, has been developed to determine methylergonovine maleate and ergonovine maleate in tablets and injections. The ether eluate is extracted with tartaric acid solution. An aliquot is diluted with sodium tartrate solution, and this solution is excited at 325 nm.
openaire   +2 more sources

The benefits of multidisciplinary collaboration in the successful management of two complex feline cases

open access: yesAustralian Veterinary Journal, EarlyView.
Despite a frequent misconception that behavioural concerns are diagnoses of exclusion, medical conditions and behavioural disorders are frequently inter‐related. In human medicine, the ‘multidisciplinary team’ approach (MDTA) is considered the most efficacious way of managing patients with complex and chronic health conditions.
BE Bollaert, JM Ley, HE Zulch
wiley   +1 more source

Synthesis of α,β-unsaturated esters of perfluoropolyalkylethers (PFPAEs) based on hexafluoropropylene oxide units for photopolymerization [PDF]

open access: yes, 2018
α,β-unsaturated esters are usually synthesized for polymer applications. However, the addition of maleate (cis-configuration) to a fluorinated moiety is challenging due to its potential isomerization during esterification. Various synthetic routes were
Friesen, Chadron M.   +9 more
core   +1 more source

Memantine prevents acute stress‐induced memory deficits by reversing sex‐dependent pathophysiological glutamatergic alterations in the dorsal hippocampus

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose The neural mechanisms underlying effects of acute stress on memory are poorly understood. We demonstrated previously that acute stress produces identical spatial memory deficits in male and female mice but through distinct molecular mechanisms, with females exhibiting up‐regulation of N‐methyl‐D‐aspartate (NMDA) receptor
Sebastiano A. Torrisi   +13 more
wiley   +1 more source

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