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Relevant bibliographies by topics / Poly(N-isopropylacrylamide) [PNIPAM]

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Journal articles

Academic literature on the topic 'Poly(N-isopropylacrylamide) [PNIPAM]'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 March 2025

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Journal articles on the topic "Poly(N-isopropylacrylamide) [PNIPAM]"

1

Tao, Xiang Dong, Ran Zhan, and Qian Duan. "Synthesis and Property Study of Modified Poly(N-isopropylacrylamide) Containing Eu(III)." Advanced Materials Research 239-242 (May 2011): 2553–57. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2553.

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Poly(N-isopropylacrylamide)(PNIPAM) with terminal aromatic groups were synthesized by atom transfer radical polymerization (ATRP), using N-isopropylacrylamide as monomer and phenyl 2-chloropropionate, (4’-phenyl)phenyl 2-chloropropionate and (2’,6’-diphenyl)phenyl 2-chloropropionate as initators. Then novel functional complexes of poly(N-isopropylacrylamide) and Eu(III) (PNIPAM-Eu(III)) with thermosensitive and fluorescent properties were synthesized and characterized by X-ray photoelectron spectroscopy (XPS), and fluorescence spectroscopy. Eu(III) was bonded to nitrogen and oxygen atoms in th

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2

Winnik, Françoise M., Alexander Adronov, and Hiromi Kitano. "Pyrene-labeled amphiphilic poly-(N-isopropylacrylamides) prepared by using a lipophilic radical initiator: synthesis, solution properties in water, and interactions with liposomes." Canadian Journal of Chemistry 73, no. 11 (1995): 2030–40. http://dx.doi.org/10.1139/v95-251.

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Fluorescently labeled amphiphilic poly-(N-isopropylacrylamides) (PNIPAM) substituted with a N-[4-(1-pyrenyl)butyl]-N-n-octadecyl group at the chain end were prepared by free-radical polymerization in dioxane of N-isopropylacrylamide (NIPAM) using 4,4′-azobis{4-cyano-N,N-[4-(1-pyrenyl)butyl]-n-octadecyl}pentanamide as the initiator. The solution properties of the polymers in water were studied as a function of polymer concentration and temperature. Quasi-elastic light-scattering measurements and fluorescence experiments monitoring the pyrene excimer and pyrene monomer emissions revealed the pre

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3

Babelyte, Migle, Laura Peciulyte, Vesta Navikaite-Snipaitiene, Joana Bendoraitiene, Volodymyr Samaryk, and Ramune Rutkaite. "Synthesis and Characterization of Thermoresponsive Chitosan-graft-poly(N-isopropylacrylamide) Copolymers." Polymers 15, no. 15 (2023): 3154. http://dx.doi.org/10.3390/polym15153154.

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Thermoresponsive chitosan-graft-poly(N-isopropylacrylamide) (CS-g-PNIPAAm) copolymers of different composition were synthesized by free-radical polymerization of chitosan (CS) and N-isopropylacrylamide (NIPAAm) in aqueous solution using potassium persulfate (PPS) as an initiator. By changing the molar ratio of CS:NIPAAm from 1:0.25 to 1:10 graft copolymers with a CS backbone and different amounts of PNIPAM side chains were prepared. The chemical structure of the obtained CS-g-PNIPAAm copolymers was confirmed by FTIR and 1H NMR spectroscopy. 1H NMR spectra were also used to calculate the conten

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4

Lima, Luiz H., Yael Morales, and Thiago Cabral. "Ocular Biocompatibility of Poly-N-Isopropylacrylamide (pNIPAM)." Journal of Ophthalmology 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/5356371.

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Purpose. To study the safety of intravitreal injections of poly-N-isopropylacrylamide (pNIPAM) tissue adhesive in rabbit eyes. Methods. Twelve study rabbits received an intravitreal injection of 0.1 mL 50% pNIPAM in the right eye. Follow-up examinations included color fundus photography, fundus fluorescein angiography (FA), optical coherence tomography (OCT), and electroretinography (ERG). Subsequent to the last follow-up assessment, the rabbits were sacrificed and histopathological study on the scleral incision sites was performed. Results. All study animals developed mild to moderate levels

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5

Yong, Ernest Hsin Nam, Kim Yeow Tshai, Siew Shee Lim, and Ing Kong. "Poly(N-Isopropylacrylamide) Microgel Synthesised by Emulsion Polymerization." Solid State Phenomena 307 (July 2020): 345–50. http://dx.doi.org/10.4028/www.scientific.net/ssp.307.345.

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Smart polymers have been one of the most popularly studied materials owing to their capability to alter physio-chemical behaviour upon exposure to specific external stimuli. The biocompatible thermally responsive poly (N-isopropylacrylamide), PNIPAm shows reversible transition between hydrophilic-hydrophobic characteristics at the vicinity of human physiological temperature has great potential to propel the development of smart tissue engineering scaffold and drug delivery. However, the limited availability and its high cost have dampened the extent of research on this polymer. To address thes

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6

Yoon, Jun Hyok, Taehyoung Kim, Myungeun Seo, and Sang Youl Kim. "Synthesis and Thermo-Responsive Behavior of Poly(N-isopropylacrylamide)-b-Poly(N-vinylisobutyramide) Diblock Copolymer." Polymers 16, no. 6 (2024): 830. http://dx.doi.org/10.3390/polym16060830.

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Thermo-responsive diblock copolymer, poly(N-isopropylacrylamide)-block-poly(N-vinylisobutyramide) was synthesized via switchable reversible addition–fragmentation chain transfer (RAFT) polymerization and its thermal transition behavior was studied. Poly(N-vinylisobutyramide) (PNVIBA), a structural isomer of poly(N-isopropylacrylamide) (PNIPAM) shows a thermo-response character but with a higher lower critical solution temperature (LCST) than PNIPAM. The chain extension of the PNVIBA block from the PNIPAM block proceeded in a controlled manner with a switchable chain transfer reagent, methyl 2-

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7

Deng, Zexing, Yi Guo, Xin Zhao, et al. "Poly(N-isopropylacrylamide) Based Electrically Conductive Hydrogels and Their Applications." Gels 8, no. 5 (2022): 280. http://dx.doi.org/10.3390/gels8050280.

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Poly(N-isopropylacrylamide) (PNIPAM) based electrically conductive hydrogels (PNIPAM-ECHs) have been extensively studied in recent decades due to their thermal-responsive (leading to the volume change of hydrogels) and electrically conductive performance. The incorporation of conductive components into the PNIPAM hydrogel network makes it become conductive hydrogel, and as a result, the PNIPAM hydrogel could become sensitive to an electrical signal, greatly expanding its application. In addition, conductive components usually bring new stimuli-responsive properties of PNIPAM-based hydrogels, s

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8

Liu, Yan Zhi, Yan Liu, Su Rui Zhao, and Yi Jing Li. "Surface Redox Initiated Polymerization to Prepare the Poly(N-isopropylacrylamide) Coating." Advanced Materials Research 602-604 (December 2012): 1706–9. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.1706.

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A hydroxylated silicon substrate was modified with 3-aminopropyltriethoxysilane (APTES) monolayer, followed by the surface initiated graft polymerization of the N-isopropylacrylamide (NIPAm). The microstructure of poly(N-isopropylacrylamide) (PNIPAm) coating was examined by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), respectively. And the results showed that about 50 nm thickness of PNIPAm coating grafted successfully.

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9

Qiu, Xing-Ping, Evgeniya V. Korchagina, Jessica Rolland та Françoise M. Winnik. "Synthesis of a poly(N-isopropylacrylamide) charm bracelet decorated with a photomobile α-cyclodextrin charm". Polym. Chem. 5, № 11 (2014): 3656–65. http://dx.doi.org/10.1039/c3py01776a.

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10

Musial, Witold, Bojana Voncina, Janusz Pluta, and Vanja Kokol. "The Study of Release of Chlorhexidine from Preparations with Modified Thermosensitive Poly-N-isopropylacrylamide Microspheres." Scientific World Journal 2012 (2012): 1–8. http://dx.doi.org/10.1100/2012/243707.

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The aim of this study was to investigate and compare the release rates of chlorhexidine (CX) base entrapped in the polymeric beads of modified poly-N-isopropylacrylamides (pNIPAMs) at temperatures below and over the volume phase transition temperature (VPTT) of synthesized polymers: pNIPAM-A with terminal anionic groups resulting from potassium persulfate initiator, pNIPAM-B with cationic amidine terminal groups, and pNIPAM-C comprising anionic terminals, but with increased hydrophobicity maintained by the N-tert-butyl functional groups. The preparations, assessed in vitro below the VPTT, rele

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