Results 1 to 10 of about 6,818 (209)

Poly(N-isopropylacrylamide) and Copolymers: A Review on Recent Progresses in Biomedical Applications [PDF]

open access: yesGels, 2017
The innate ability of poly(N-isopropylacrylamide) (PNIPAAm) thermo-responsive hydrogel to copolymerize and to graft synthetic polymers and biomolecules, in conjunction with the highly controlled methods of radical polymerization which are now available ...
Sonia Lanzalaco, Elaine Armelin
doaj   +5 more sources

Synthesis and characterization of PIL/pNIPAAm hybrid hydrogels

open access: yesCurrent Directions in Biomedical Engineering, 2016
In this study, varying amounts of NIPAAm and an ionic liquid (IL), namely 1-vinyl-3-isopropylimidazolium bromide ([ViPrIm]+[Br]−), have been used to synthesize hybrid hydrogels by radical emulsion polymerization. Amounts of 70/30%, 50/50%, 30/70%, 15/85%
Pfensig Sylvia   +5 more
doaj   +2 more sources

Molecular design of dynamically thermoresponsive biomaterials [PDF]

open access: yesScience and Technology of Advanced Materials
Dynamically thermoresponsive biomaterials, particularly those utilizing poly(N-isopropylacrylamide) (PNIPAAm), have attracted much attention in biomedical applications due to their reversible phase transition near body temperature.
Jun Kobayashi   +2 more
doaj   +2 more sources

Swelling Deswelling Behavior of PS‐PNIPAAM Copolymer Particles and PNIPAAM Brushes Grafted from Polystyrene Particles & Monoliths

open access: yesMacromolecular Materials and Engineering, 2008
AbstractTwo sets of emulsion particles have been synthesized. In the first set, surfactant free emulsion was used to directly synthesize PS‐PNIPAAM copolymer particles. In the second set, polystyrene particles with an ATRP initiator shell were first synthesized and subsequently grafted with PNIPAAM brushes.
Vikas Mittal   +2 more
exaly   +2 more sources

Functional aligned mesenchymal stem cell sheets fabricated using micropatterned thermo-responsive cell culture surfaces [PDF]

open access: yesMaterials Today Bio
Mesenchymal stem cells (MSCs) are frequently applied for cell transplantation and regenerative therapy because they secrete diverse therapeutic cytokines that prompt immuno-stimulatory and tissue repair processes. Furthermore, cultured MSC sheets exhibit
Kenichi Nagase   +3 more
doaj   +2 more sources

Trithiocarbonate-Functionalized PNiPAAm-Based Nanocomposites for Antimicrobial Properties [PDF]

open access: yesPolymers, 2018
In this study, four trithiocarbonate-functionalized PNiPAAms with different molecular weights were synthesized and used as a matrix to form composites with silver nanoparticles. Nanocomposites with several polymer-to-silver ratios P:Ag+ were prepared in order to evaluate the influence of silver loading.
Milène Tan   +3 more
openaire   +5 more sources

New Alginate/PNIPAAm Matrices for Drug Delivery [PDF]

open access: yesPolymers, 2019
This paper deals with a comparative study on the interpolymeric complexes of alginate poly(N-isopropyl acryl amide (PNIPAAm) and corresponding graft copolymers with various compositions in respect to their toxicity, biocompatibility and in vitro and in vivo release of theophylline (THP).
Catalina N. Cheaburu-Yilmaz   +2 more
openaire   +3 more sources

Polypropylene mesh for hernia repair with controllable cell adhesion/de-adhesion properties [PDF]

open access: yes, 2020
Herein, a versatile bilayersystem, composed by a polypropylene(PP)mesh and a covalently bonded poly(N-isopropylacrylamide) (PNIPAAm) hydrogel, is reported.
Alemán Llansó, Carlos   +6 more
core   +2 more sources

Temperature Responsive Polymer Conjugate Prepared by “Grafting from” Proteins toward the Adsorption and Removal of Uremic Toxin

open access: yesMolecules, 2022
In this study, temperature-responsive polymer-protein conjugate was synthesized using a “grafting from” concept by introducing a chain transfer agent (CTA) into bovine serum albumin (BSA).
Erika Yoshihara   +4 more
doaj   +1 more source

Fast and Large Shrinking of Thermoresponsive Hydrogels with Phase-Separated Structures

open access: yesGels, 2021
Thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) hydrogels have been attracting attention in a variety of functional materials, such as biomaterials, because they exhibit a volume phase transition phenomenon near physiological temperatures. However,
Taehun Chung   +4 more
doaj   +1 more source

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