In vitro dynamic swelling behaviors of radiation synthesized polyacrylamide with crosslinkers in the simulated physiological body fluids

Saraydın, Dursun; Işıkver, Yasemin; Karadağ, Erdener; Şahiner, Nurettin; Güven, Olgun

doi:10.1016/s0168-583x(01)00956-9

Cited by 29 publications

(17 citation statements)

References 18 publications

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“…Thus, prediction of the behavior of the hydrogel provides a great advantage to a designer from a scientific point of view. 24 The accumulation of wound exudate often causes maceration and bacterial overgrowth in the wound site. To prevent a secondary infection of bacteria, an ideal wound dressing absorbs wound fluid.…”

Section: Swelling In Pecf Solutionmentioning

confidence: 99%

Radiation synthesis of poly(N‐vinyl‐2‐pyrrolidone)–κ‐carrageenan hydrogels and their use in wound dressing applications. I. Preliminary laboratory tests

Şen

Avcı

2005

J Biomedical Materials Res

101

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Poly(N-vinyl-2-pyrrolidone)--carrageenan hydrogels (PVP-KC) were prepared by irradiating the mixtures of aqueous solutions of PVP, KC, potassium chloride, and poly(ethylene glycol) by ␥-rays at different doses. Their preliminary laboratory tests were evaluated to identify their usability in wound dressing applications. For investigation of the effect of components on the gelation of PVP, sol-gel analyses were made and gel fractions of the hydrogels were determined. Mechanical experiments were conducted for both unirradiated and irradiated samples. For investigation of the fluid uptake capacity of the hydrogels, swelling experiments were performed in pseudo-extracellular fluid solution at various temperatures. Acidity/alkalinity (pH) and electrical conductivity tests were achieved from aqueous extracts of hydrogels, and bioadhesion strength of the hydrogels was investigated on human skin.

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Section: Swelling In Pecf Solutionmentioning

confidence: 99%

Radiation synthesis of poly(N‐vinyl‐2‐pyrrolidone)–κ‐carrageenan hydrogels and their use in wound dressing applications. I. Preliminary laboratory tests

Şen

Avcı

2005

J Biomedical Materials Res

101

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“…Cross-link density is one of the most significant structural parameters for a family of hydrogels which influences the water absorbency [31]. It was clear from Fig.…”

Section: Network Studiesmentioning

confidence: 92%

Synthesis of poly(acrylamide-co-acrylic acid)-based super-absorbent hydrogels by gamma radiation: study of swelling behaviour and network parameters

Tomar

Gupta

Singhal

et al. 2007

Designed Monomers and Polymers

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Abstract-A series of poly(acrylamide-co-acrylic acid) (poly(AAm-co-AAc))-based super-absorbent hydrogels (SAHs) was prepared by gamma radiation at the dose rate of 15 kGy. The amount of AAm was varied in the range of 30-70% (mol of total monomer) in feed. The co-polymers were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, nuclear magnetic resonance and network parameters, such as average molar mass between cross-links and cross-link density, were determined to explain the swelling behaviour. The experimental results indicated that an increase in the AAm content present in the hydrogels varied from 38.87% to 64.02%, equilibrium water absorbency decreased from 872 to 402 g H 2 O/g sample. The equilibrium water absorbency of various SAHs was investigated in different concentration of saline solutions. The effect of synthesized co-polymer on growth of seeds of ladyfinger is reported.

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“…In order to verify the above fact we determined the network parameters such as average molecular weight between cross-links (M c ) and cross-link density (q) for hydrogels A 0.5 to A 4 having varying AAm content (Table 4). From the network parameters study it is indicated that a decrease of average molecular weight between cross-link (M c ) is accompanied by an increase of cross-link density resulting a decrease of swelling ratio [1] (Fig. 3).…”

Section: Effect Of Aam Concentration On Swelling Behaviourmentioning

confidence: 98%

“…Among the many biomaterials, synthetic hydrogels have recently been gaining a lot of attention for their resemblance to living tissue [1,2]. Hydrogels are water-swollen networks (cross-linked structures) composed of hydrophilic homopolymers or co-polymers [3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(AAm-co-BMA-co-AAc) hydrogels: effect of acrylamide content on swelling behaviour

Gupta¹,

Tomar²,

Nagpal³

et al. 2006

Designed Monomers and Polymers

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Poly(acrylamide-co-butyl methacrylate-co-acrylic acid) hydrogels were prepared in various concentrations of a dioxane/water mixture as polymerization media using different percentages of cross-linker and by varying the amount of acrylamide over 4-fold in order to study the effect of acrylamide content on swelling behaviour of hydrogels. It was found that hydrogels prepared in 50% aqueous dioxane solution exhibited the highest swelling. The results also indicated that with increasing acrylamide content, swelling increased initially. And when acrylamide content further increased to 66% (based on total monomer), the swelling decreased gradually. Detailed swelling kinetics, such as swelling ratio, transport exponent n and diffusion coefficient D, were studied and the effect of pH on equilibrium swelling was also studied. The hydrogels were also characterized by network parameters, such as molecular weight between cross-links (M c ) and cross-link density (q), that were determined to explain the swelling behaviour. The hydrogels were also characterized by Fourier transform infrared spectroscopy, elemental analysis, differential scanning calorimetry and scanning electron microscopy.

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In vitro dynamic swelling behaviors of radiation synthesized polyacrylamide with crosslinkers in the simulated physiological body fluids

Cited by 29 publications

References 18 publications

Radiation synthesis of poly(N‐vinyl‐2‐pyrrolidone)–κ‐carrageenan hydrogels and their use in wound dressing applications. I. Preliminary laboratory tests

Radiation synthesis of poly(N‐vinyl‐2‐pyrrolidone)–κ‐carrageenan hydrogels and their use in wound dressing applications. I. Preliminary laboratory tests

Synthesis of poly(acrylamide-co-acrylic acid)-based super-absorbent hydrogels by gamma radiation: study of swelling behaviour and network parameters

Synthesis and characterization of poly(AAm-co-BMA-co-AAc) hydrogels: effect of acrylamide content on swelling behaviour

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