Results 11 to 20 of about 2,588 (196)

UCST‐Responsive PMEGA: From Solution Behavior to Functional Hydrogel Surfaces

Advanced Materials Interfaces
Thermoresponsive polymer coatings have attracted considerable attention for applications in materials science, biotechnology, and surface engineering.
Thi Phuong Thu Nguyen, Léa Milenkovic, Bruno Bresson, Nadège Pantoustier, Yvette Tran   +4 more
doaj   +3 more sources

UCST-Type Polymer Capsules Formed by Interfacial Complexation

ACS Macro Letters, 2022
Formation of aqueous-core polymer capsules exhibiting an upper critical solution temperature (UCST) was achieved using surfactant-polymer interfacial complexation in water-in-oil inverse emulsions. In fluorinated oil, Coulombic interactions between Krytox, an anionic oil-soluble surfactant, and a cationic poly(lysine) grafted with poly(acrylamide-co ...
Sixdenier, Lucas, Augé, Amélie, Zhao, Yue, Marie, Emmanuelle, Tribet, Christophe   +4 more
openaire   +4 more sources

Counterion-Induced UCST for Polycations

Macromolecules, 2014
A method to promote upper crit. soln. temp. (UCST) type of behavior for polycations is introduced. This relies on in situ introduction of a hydrophobic anion to an aq. soln. of a polycation in the presence of sufficient ionic strength. This was studied using two polycations: poly(2-methacryloyloxyethyltrimethylammonium iodide) and poly(3-methyl-1-(4 ...
Karjalainen Erno, Tenhu Heikki, Aseyev Vladimir   +2 more
openaire   +2 more sources

Smart “Thrombus”: Self-Localizing UCST-Type Microcage

ACS Macro Letters, 2023
Embolization is often used to block blood supply for controlling the growth of fibroids and malignant tumors, but limited by embolic agents lacking spontaneous targeting and post-treatment removal. So we first adopted nonionic poly(acrylamide-co-acrylonitrile) with an upper critical solution temperature (UCST) to build up self-localizing microcages by ...
Shenglong Gan, Jiao Dong, Xian Li, Juan Wang, Longbin Chen, Yao Wang, Shiting Feng, Hao Li, Guofu Zhou   +8 more
core   +5 more sources

Synthesis and Thermo-Responsive Performance of Chitosan-Based UCST-Type Superplasticizers for Cement Composites

Polysaccharides
Conventional polycarboxylate superplasticizers (PCEs) suffer from uncontrollable adsorption, characterized by rapid initial uptake and limited subsequent release, which causes pronounced slump loss, particularly at elevated temperatures where hydration ...
Zhilong Quan, Huijin Zhan, Lang Ye, Xiaoqing Zhang, Shuanghua Zhou, Hongwei Chen   +5 more
doaj   +2 more sources

Scaled water sigma potential as a descriptor of LCST and UCST behavior in aqueous ionic liquid solutions

Journal of Ionic Liquids
This study introduces the scaled sigma potential of water (σr), a new metric using the COSMO-RS (Conductor like Screening Model for Real Solvents) framework, as a descriptor of upper and lower critical solution temperature (UCST and LCST) governed phase ...
Sidharth Sanadhya, Gregory M. Durling, Brandon L. Ashfeld, Saeed Moghaddam   +3 more
doaj   +2 more sources

Coarse-Grained Simulations Rationalize Thermosensitivity and Hydrolytic Degradation of Vinyl Copolymers Obtained by Radical Ring-Opening Polymerization. [PDF]

Angew Chem Int Ed Engl
Coarse‐grained (CG) molecular dynamics simulations were used to predict the upper critical solution temperature of copolymers obtained by radical ring‐opening copolymerization of cyclic ketene acetals and vinyl monomers, and to account for their unique degradation kinetics under physiological conditions by evaluating the solvation of their ester groups.
Gao P, Jiang Y, Ha-Duong T, Nicolas J.
europepmc   +3 more sources

Infrared Laser Heating Reveals a Reversible Phase Transition of Phosphofructokinase 1 in Mammalian Cells. [PDF]

Chemistry
In this study, we present a novel method to investigate the phase behavior of biomolecular condensates in living cells. The method complements FRAP experiments, expanding the existing toolbox for characterization of condensates within living cells. ABSTRACT Metabolic enzymes can operate in concerted networks, so‐called metabolons.
Mosbach M, Kuruvanthara SP, Johannknecht L, Ebbinghaus S.   +3 more
europepmc   +2 more sources

Harnessing Phase Separation for the Development of High-Performance Hydrogels. [PDF]

Adv Sci (Weinh)
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Shao Y, Ma Y, Shao B, Stevens MM.
europepmc   +2 more sources

LCST polymers with UCST behavior

Soft Matter, 2021
In this study, temperature dependent behavior of dense dispersions of core crosslinked flower-like micelles is investigated.
Marzieh Najafi, Mehdi Habibi, Remco Fokkink, Wim E. Hennink, Tina Vermonden   +4 more
openaire   +6 more sources