Dielectric and interaction behavior of chitosan/polyvinyl alcohol and chitosan/polyvinyl pyrrolidone blends with some antimicrobial activities

Abou-Aiad, T. H.; Abd‐El‐Nour, K. N.; Hakim, I. K.; Elsabeé, Maher Z.

doi:10.1016/j.polymer.2005.02.122

Cited by 48 publications

(28 citation statements)

References 27 publications

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“…The tensile strength of chitosan, PVP with 0.01 mg nanoparticle (1:1:0.01) was maximum followed by chitosan, PVP with 0.005 mg nanoparticle (1:1:0.005), chitosan, PVP with 0.001 mg nanoparticle (1:1:0.001) and blend without nanoparticle (1:1:0). Previously it was reported that with a decreasing ratio of PVP up to 50% in the composite membranes, the strength of the prepared dressing significantly increased [14]. The tensile strength of CPS film without nanoparticle was 33.22 ± 0.24 MPa increasing to a maximum value of 35.98 ± 0.98 MPa when the nanoparticle was incorporated in composite dressing.…”

Section: Mechanical Propertiesmentioning

confidence: 92%

“…PVP is a synthetic polymer has good compatibility, good transparency and used as a blood plasma expander [12] and as a vitreous humor substitute [13]. The blends of chitosan and PVP have already studied for antibacterial activity [14], biocompatibility [15] and biomedical applications [16]. NMR and FTIR analyses proved that hydrogen bonding was present between the chitosan and PVP [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chitosan-PVP-nano silver oxide wound dressing: In vitro and in vivo evaluation

Archana

Singh

Dutta

et al. 2015

International Journal of Biological Macromolecules

329

134

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Section: Mechanical Propertiesmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Chitosan-PVP-nano silver oxide wound dressing: In vitro and in vivo evaluation

Archana

Singh

Dutta

et al. 2015

International Journal of Biological Macromolecules

329

134

View full text Add to dashboard Cite

“…The combination of polymeric materials is not a new idea. In fact, some decades ago, one experiments with this kind of systems [2][3][4][5][6][7] . When two or more polymer components are blended, the goal is to maintain or to improve the properties of the pure polymers 1,8 .…”

Section: Introductionmentioning

confidence: 99%

Blends of Poly(n-Vinyl-2-Pyrrolidone) and Dihydric Phenols: Thermal and Infrared Spectroscopic Studies. Part Iv

Gatica¹,

SOTO²,

MORAGA³

et al. 2013

J. Chil. Chem. Soc.

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The blending behaviour of binary systems formed by the polymer component poly(N-vinyl-2-pyrrolidone) (PVP) and the low molecular weight compounds 4,4'-biphenol (44BP) and 2,2'-biphenol (22BP) was studied. The blends were characterized in the entire composition range by Differential Scanning Calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM). Both, the glass transition temperature (Tg) and the melting point (Tm) of the pure components were affected as a consequence of the blending process. It was observed miscibility between the components in both blends and a higher interaction degree in the blend containing 44BP. FTIR analysis detected the hydrogen bonding as intermolecular interaction responsible of the observed miscibility, by means of the variation in the wave number corresponding to the stretching vibration of PVP carbonyl group. TGA and SEM analyses provided coherent and complementary results with both DSC and FTIR.

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“…Chitosan can also be blended with polymers that possess electrical properties, like conductivity [130][131][132]. The conductive materials based on the blends of chitosan with other polymers can be used in biomedical devices.…”

Section: New Materials Based On Blends Of Chitosan With Other Polymersmentioning

confidence: 99%

Natural Polymers as Components of Blends for Biomedical Applications

Sionkowska¹

2013

Polymeric Biomaterials

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INTRODUCTIONThe biomedical sector requests more and more complex structures in attempts to fulfill the requirements of a multitude of different applications. For this reason, polymer scientists exploit existing compounds and also design new compounds with properties that can be considered as new materials for biomedical applications [1,2]. The applications of polymers are essential in surgery, for prosthetic systems, and in pharmacology, for drug formulation and controlled drug delivery. Polymeric biomaterials are usually used under complex, demanding conditions, and must fulfill stringent requirements relating to their chemical, biological, and physicomechanical properties. Therefore, there is an urgent need for new polymeric biomaterials that can satisfy the demanding performance requirements and standards required for these applications [3]. The development of innovative polymeric biomaterials can be an engine of innovation for new medical treatments and therapies. The existing knowledge clearly shows that the careful optimization of the chemical structure of polymers used in medical implants can result in better clinical outcomes for the implant recipients. Biodegradable polymers play a significant role in the preparation of polymeric materials for biomedical applications. They are preferred candidates for developing therapeutic devices such as temporary prostheses, three-dimensional porous structures as scaffolds for tissue engineering, and as controlled/sustained release drug delivery vehicles [4].At the end of the twentieth century, a new trend in the development of polymeric materials was observed [5]. Many scientific laboratories started to work with polymer blends as potential new materials for medicine (biomaterials), the food industry (biodegradable and photodegradable food packaging materials), and for the electronic industry (conducting polymers). Especially, new materials for biomedical applications based on the blends of two polymers were studied. Cell-based transplantation, CONTENTS

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Dielectric and interaction behavior of chitosan/polyvinyl alcohol and chitosan/polyvinyl pyrrolidone blends with some antimicrobial activities

Cited by 48 publications

References 27 publications

Chitosan-PVP-nano silver oxide wound dressing: In vitro and in vivo evaluation

Chitosan-PVP-nano silver oxide wound dressing: In vitro and in vivo evaluation

Blends of Poly(n-Vinyl-2-Pyrrolidone) and Dihydric Phenols: Thermal and Infrared Spectroscopic Studies. Part Iv

Natural Polymers as Components of Blends for Biomedical Applications

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