Journal ArticleDOI
Radiation synthesis and characterization of stimuli-sensitive chitosan-polyvinyl pyrrolidone hydrogels
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TLDR
In this article, the synthesis regularities and the swelling behaviour of hydrogels have been studied and it was shown that increasing of PVP concentration in feed composition also as radiation dose accompanied of increase of yield of gel fraction and decrease of swelling degree.About:
This article is published in Radiation Physics and Chemistry.The article was published on 2005-04-01. It has received 52 citations till now. The article focuses on the topics: Self-healing hydrogels & Critical micelle concentration.read more
Citations
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Journal ArticleDOI
Influence of poly (Ethylene Glycol) on the characteristics of γ radiation-crosslinked poly (Vinyl Pyrrolidone)-low molecular weight chitosan network hydrogels
TL;DR: PEG at compositions of 10, 15 and 20 g were added into the initial formulation of hydrogel L, which was composed of 6 g low molecular weight chitosan (LMC) and 14 g poly (vinyl pyrrolidone) in 100 g of 2% lactic acid as discussed by the authors.
Journal ArticleDOI
Assembly, characterization of Ag nanoparticles in P(AAm-co-NVP)/CS semi-IPN, and swelling of the resulting composite hydrogels
TL;DR: In this paper, an in situ chemical reduction route based on a microreactor template composed of poly(acrylamide-co-N-vinylpyrrolidone)/chitosan semi-interpenetrating network hydrogels, in the presence of sodium hypophosphite was investigated.
Journal ArticleDOI
Hydrogels from Chitosan and a Novel Copolymer Poly(N-Vinyl-2-Pyrrolidone-Co-Acrolein)
TL;DR: In this article, two different techniques of hydrogel attainment were used: one from mixtures of acid aqueous cosolutions of chitosan and PVP, whose resultant films and solutions were irradiated, afterwards, by ultraviolet radiation (λ = 254 nm).
Journal ArticleDOI
Designing of pH-responsive ketorolac tromethamine loaded hydrogels of alginic acid: Characterization, in-vitro and in-vivo evaluation
TL;DR: In this article , a pH-responsive hydrogel based on alginic acid grafted with acrylic acid and ethylene glycol dimethylacrylate in the presence of ammonium persulfate was developed for controlled delivery of Ketorolac tromethamine.
Journal ArticleDOI
Designing of pH-responsive ketorolac tromethamine loaded hydrogels of alginic acid: Characterization, in-vitro and in-vivo evaluation
TL;DR: In this paper, a pH-responsive hydrogel based on alginic acid grafted with acrylic acid and ethylene glycol dimethylacrylate in the presence of ammonium persulfate was developed for controlled delivery of Ketorolac tromethamine.
References
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Journal ArticleDOI
Environment-sensitive hydrogels for drug delivery
Yong Qiu,Kinam Park +1 more
TL;DR: Development of environmentally sensitive hydrogels with a wide array of desirable properties can be made is a formidable challenge, however, if the achievements of the past can be extrapolated into the future, it is highly likely that responsive hydrogelWith such properties can been made.
Journal ArticleDOI
Application of chitosan-based polysaccharide biomaterials in cartilage tissue engineering : a review
TL;DR: Some biomaterials, which have been suggested to promote chondrogenesis and to have potentials for tissue engineering of articular cartilage, are reviewed and a new biomaterial, a chitosan-based polysaccharide hydrogel, is introduced and discussed in terms of the biocompatibility with chondrocytes.
Journal ArticleDOI
Crosslinking of recycled polyethylene by gamma and electron beam irradiation
Esbaide Adem,Miguel Avalos-Borja,D. Carrillo,M. Vazquez,Ernesto Sanchez,María del Pilar Carreón,Guillermina Burillo +6 more
TL;DR: In this article, the effects of gamma and electron irradiation on virgin and recycled polyethylene were compared and their mechanical, thermal and chemical properties were analyzed, showing that VPE samples showed higher crosslinking percentages than RPE samples in all range of doses studied, unirradiated RPE sample had higher values on their tensile properties than VPE.
Journal ArticleDOI
Oral drug absorption enhancement by chitosan and its derivatives.
TL;DR: Mono-carboxymethylated chitosan (MCC) is a polyampholytic polymer, able to form visco-elastic gels in aqueous environments or with anionic macromolecules at neutral pH values, and appears to be less potent compared to the quaternized derivative.
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