Results 161 to 170 of about 2,588 (196)

The permanent ureterocutaneostomy (UCST)

International Urology and Nephrology, 1992
During a period of eleven years, ureterocutaneostomy (UCST) as a permanent urinary diversion was performed in 44 highly selected patients. Postoperative complications, in particular stenoses or strictures, can be avoided if subtle operative techniques are applied. Ureterocutaneostomy, which is functionally similar to an incontinent ileal conduit, turns
G, Wandschneider, R, Petek, K, Pummer, G, Primus   +3 more
openaire   +2 more sources

PNIPAm-Based Microgels With a UCST Response

Polymer, 2017
Abstract Thermoresponsive microgels with an upper critical solution temperature (UCST) response (i.e., showing volume expansion at higher temperature) are highly desirable for a variety of applications, but quite uncommon, in particular if they are to work in physiological conditions.
Laurinda Areias, José Paulo S Farinha, Maria Teresa Viciosa   +2 more
exaly   +2 more sources

Design of an LCST–UCST-Like Thermoresponsive Zwitterionic Copolymer

Langmuir, 2021
Thermoresponsive polymers that possess both UCST- and LCST-like behaviors have generally been designed using diblock copolymers that are mostly composed of an LCST-like polymer and a UCST polymer. Herein, we prepared an LCST-UCST-type polymer composed of UCST-like thermoresponsive zwitterionic sulfabetaine methacrylate and nonthermoresponsive PEG ...
Nobuyuki Morimoto, Masaya Yamamoto
openaire   +2 more sources

Triple Hydrophilic UCST–LCST Block Copolymers

Macromolecules, 2016
Thermosensitive ABC triblock copolymers with different block lengths and block orders were prepared by reversible addition–fragmentation chain transfer (RAFT) polymerization. Using a nonionic macro-RAFT agent containing poly(ethylene oxide) (PEO, average degree of polymerization 17), either N-acryloylglycinamide (NAGA) or N-isopropylacrylamide (NIPAM ...
Lauri Mäkinen, Divya Varadharajan, Heikki Tenhu, Sami Hietala   +3 more
openaire   +1 more source

RAFT Synthesis in Water of Cationic Polyelectrolytes With Tunable UCST

Macromolecular Rapid Communications, 2015
Cationic polyelectrolytes showing an upper critical solution temperature (UCST) are synthesized by reversible addition‐fragmentation chain transfer (RAFT) polymerization in water at a temperature well above the UCST. The polymerization is well controlled by the RAFT process, with excellent pseudo‐first‐order kinetics.
Zesheng An, Xueteng Cao
exaly   +3 more sources

Design of UCST Polymers for Chilling Capture of Proteins

Biomacromolecules, 2013
Ureido-derivatized polymers, such as poly(allylurea) (PU) and poly(L-citrulline) derivatives, exhibited upper critical solution temperature (UCST) behavior under physiological buffer conditions as we previously reported. The PU derivatives having amino groups (PU-Am) also showed UCST behavior.
N. Shimada, M. Nakayama, A. Kano, ATSUSHI MARUYAMA   +3 more
openaire   +2 more sources

LCST–UCST-Based Copolymerizations

2011
It was shown in Chap. 3 that a polymerization system can start as a conventional precipitation system and end as an FRRPP system, especially if the phase diagram exhibits an hourglass-shaped phase envelope at relatively high polymer molecular weight. This sets up the arguments for other types of shifts from UCST- and LCST-based chain polymerizations ...
Gerard Caneba, Yadunandan Dar
openaire   +1 more source

Tryptophan-based styryl homopolymer and polyzwitterions with solvent-induced UCST, ion-induced LCST and pH-induced UCST

Polymer Chemistry, 2019
A multi-stimuli responsive tryptophan-based styryl homopolymer and polyzwitterions with solvent-induced UCST, ion-induced LCST and pH-induced UCST under different conditions are presented.
Somdeb Jana, Mahammad Anas, Tanmoy Maji, Sanjib Banerjee, Tarun K. Mandal   +4 more
openaire   +1 more source

Highly Ordered Polypeptide with UCST Phase Separation Behavior

Journal of the American Chemical Society, 2018
Manipulating phase separation structures of thermoresponsive polymers will enhance the usefulness of structure-controllable materials in fields such as drug delivery and tissue engineering. However, behaviors of upper critical solution temperature (UCST) have been less investigated so far, despite the importance of UCST.
Sotaro Kuroyanagi, Naohiko Shimada, Shota Fujii, Tadaomi Furuta, Atsushi Harada, Kazuo Sakurai, Atsushi Maruyama   +6 more
openaire   +2 more sources

LCST and UCST Behavior in Polymer Solutions and Blends

Polymer, 2012
Abstract We introduce a model for polymer solutions and blends that display both an upper and a lower critical solution temperature (UCST, LCST). Using our simple analytic lattice theory along with a fixed parameter set independent of both composition and temperature, we study solutions and blends exhibiting complicated miscibility patterns ...
E.A. Clark, J.E.G. Lipson
exaly   +2 more sources