Results 141 to 150 of about 76,516 (303)

Kinetic Investigation of Propylene Oxide Ring‐Opening Polymerization in a Multiphase Semibatch Reactor

open access: yesHelvetica Chimica Acta, EarlyView.
A semi‐batch kinetic model for propylene oxide ring‐opening polymerization reveals that polymerization is governed by mass transfer at the catalyst–liquid interface rather than gas–liquid transport. ABSTRACT The multiphasic semi‐batch ring‐opening polymerization of propylene oxide was investigated with respect to mass‐transfer limitations at the solid ...
Tabea A. Thiel   +4 more
wiley   +1 more source

FRET‐Based Investigation of the Dynamics of Peptide‐Folded Single Chain Nanoparticles Inside Cancer Cells

open access: yesMacromolecular Rapid Communications, EarlyView.
Little is known about the cellular uptake of single chain nanoparticles that are cross‐linked with dynamic bonds. Using Förster resonance energy transfer and fluorescence lifetime imaging microscopy (FRET‐FLIM) the dynamic nature of the bonds is seen, in which the interaction between two peptides, disassemble quickly, relatively.
Shegufta Farazi   +5 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

open access: yesPolymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani   +4 more
wiley   +1 more source

Testing optimal defense theory: Root resistance selection in chicory (Cichorium intybus) reduces foliar defense and alters aphid performance and feeding behavior

open access: yesPest Management Science, EarlyView.
Root‐focused resistance in chicory reduces defenses in leaves, impairing root aphids but enhancing foliar aphid performance. Selecting root resistance can create unintended trade‐offs across plant organs. Abstract BACKGROUND Plants are constantly exposed to a wide range of herbivores at both aboveground (AG) and belowground (BG) levels, involving ...
Thomas Cochenille   +5 more
wiley   +1 more source

Pesticide use in integrated pest and pollinator management framework to protect pollinator health

open access: yesPest Management Science, Volume 81, Issue 4, Page 1691-1696, April 2025.
Integrated pest management (IPM) emphasizes non‐chemical methods, with pesticides as a last resort, while integrated pest and pollinator management (IPPM) integrates pollinator health into pest control strategies. Abstract Agricultural pesticides have historically been a critical tool in controlling pests and diseases, preventing widespread suffering ...
Ngoc T Phan   +6 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Ashwagandha: Is It Safe? Part 2: A Preclinical Evidence Review

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT The preclinical evidence for the safety of ashwagandha (Withania somnifera (L.) Dunal, AS) is reviewed, and its preparations (extracts) and constituents, from the general toxicity in animal models to in vitro and cell culture studies, which may elucidate mechanisms of action and explain clinical case reports.
Elizabeth M. Williamson, Thomas Brendler
wiley   +1 more source

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