Results 191 to 200 of about 9,571 (263)

pH and thermo-responsive hybrid hydrogels based on PNIPAAM and keratin

European Polymer Journal, 2020
This study investigated PNIPAAM/keratin hybrids that were prepared by free radical polymerization of NIPAMM in the presence of functionalized keratin with vinyl group.
Maria Isabel Felisberti
exaly   +2 more sources

Tailoring the LCST of PNIPAAM‐b‐PLA‐b‐PNIPAAM Triblock Copolymers via Stereocomplexation

Macromolecular Rapid Communications, 2013
Poly(N‐isopropylacrylamide)‐block‐poly(l‐lactic acid)‐block‐poly(N‐isopropylacrylamide) (PNIPAAM‐b‐PLLA‐b‐PNIPAAM) and PNIPAAM‐b‐PDLA‐b‐PNIPAAM triblock copolymers with varying polylactic acid (PLA) lengths are synthesized using a combination of ring‐opening polymerization and atom‐transfer radical polymerization.
Zhang, X., Tan, B.H., He, C.
openaire   +2 more sources

Thermosensitive polymeric vesicles self-assembled by PNIPAAm-b-PPG-b-PNIPAAm triblock copolymers

Colloid and Polymer Science, 2004
PNIPAAm-b-PPG-b-PNIPAAm triblock copolymers were prepared by redox polymerization. The self-assembly behavior and thermosensitive property of the copolymers in water were studied using 1H-NMR, TEM and a UV spectrophotometer. The results showed that the LCST of the copolymers was 32 °C, which was consistent with that of pure PNIPAAm.
Xiangrong Chen, Xiaobin Ding, Zhaohui Zheng, Yuxing Peng   +3 more
openaire   +1 more source

Understanding the Diffusion of Dextrans in ‘Click’ PNIPAAm Hydrogels

Australian Journal of Chemistry, 2013
Arguably the most important property of a hydrogel is the ability to allow the diffusion of solutes through the crosslinked network. Studies of the diffusion in hydrogels are important for providing information on the rate and extent of the passage of the solute and on the details of the microstructure of the hydrogel.
Ooi, Huey Wen, Peng, Hui, Jack, Kevin S., Whittaker, Andrew K.   +3 more
openaire   +3 more sources

One-side non-covalent modification of CVD graphene sheet using pyrene-terminated PNIPAAm generated via RAFT polymerization for the fabrication of thermo-responsive actuators

Sensors and Actuators B: Chemical, 2017
Degang Jiang, Huihui Zhu, Wenrong Yang   +2 more
exaly   +2 more sources

Preparation of thermosensitive PNIPAAm hydrogels with superfast response

Chemical Communications, 2004
A simple, effective strategy was developed and demonstrated to prepare thermosensitive poly(N-isopropylacrylamide) (PNIPAAm) hydrogel with a superfast response by using an organic solvent, tetrahydrofuran (THF), as a foaming agent as well as a precipitation agent during the polymerization/crosslinking in water at room temperature.
Xian-Zheng, Zhang, Chih-Chang, Chu
openaire   +2 more sources

Peptide–PNIPAAm conjugate based hydrogels: synthesis and characterisation

Soft Matter, 2011
Thermo-responsive PNIPAAm rich hydrogels with controllable properties have been prepared by introducing small quantities of peptide-PNIPAAm bioconjugates where the peptide self-assembled into a β-sheet rich fibrillar network. This was achieved in a one pot synthesis using a thiol-modified peptide as the chain-transfer agent in the free radical ...
Maslovskis, Antons, Tirelli, Nicola, Saiani, Alberto; id_orcid 0000-0002-5504-8306, Saiani, Aline; id_orcid 0000-0003-2731-3536   +3 more
openaire   +2 more sources

“Click” PNIPAAm hydrogels – a comprehensive study of structure and properties

Polymer Chemistry, 2013
A detailed understanding of the structural and chemical features of hydrogels is vital when it comes to modifying and tailoring these materials into potential beneficial tools for different disciplines, such as drug delivery, membrane science, etc. However the characterization of hydrogels using conventional analytical techniques is a major challenge ...
Ooi, Huey Wen, Jack, Kevin S., Peng, Hui, Whittaker, Andrew K.   +3 more
openaire   +4 more sources

Bulk poly(N-isopropylacrylamide) (PNIPAAm) thermoresponsive cell culture platform: toward a new horizon in cell sheet engineering.

Biomaterials Science, 2019
Although a conventional method of utilizing thermoresponsive grafted poly(N-isopropylacrylamide) (PNIPAAm) enables the harvest of a healthy confluent cell-to-cell junction preserved cell sheet while limiting the use of the trypsin enzyme, the absolute ...
A. Choi, Kyoung Duck Seo, Hyungjun Yoon, S. Han, Dong Sung Kim   +4 more
semanticscholar   +1 more source

PNIPAAM modified mesoporous hydroxyapatite for sustained osteogenic drug release and promoting cell attachment

Materials Science and Engineering C, 2016
This work presented a sustained release system of simvastatin (SIM) based on the mesoporous hydroxyapatite (MHA) capped with poly(N-isopropylacrylamide) (PNIPAAM).
Lei Tan, Ning Cheng, Qi Yan
exaly   +2 more sources