scholarly journals Poly(vinyl alcohol): Physical Approaches to Designing Biomaterials for Biomedical Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Shathani Nkhwa ◽  
Kristo Fernando Lauriaga ◽  
Evren Kemal ◽  
Sanjukta Deb
Keyword(s):  
Vinyl Alcohol ◽  
Biomedical Applications ◽  
Physical And Mechanical Properties ◽  
Poly Vinyl Alcohol ◽  
Biocompatible Polymers ◽  
Chemical Crosslinking ◽  
Biocompatible Polymer ◽  
Physical Methods ◽  
Physically Crosslinked ◽  
Physical Crosslinking

Poly(vinyl alcohol) is a non-toxic, biosynthetic polymer and biocompatible polymer that has the ability to form hydrogels either via chemical or physical crosslinking. Whilst chemical crosslinking provides greater control on the properties of the resultant hydrogel, physically crosslinked hydrogels or blends with other biocompatible polymers are more suited for biomedical applications. In this paper we report a systematic study on the effect of varying concentrations of PVA, physical methods of crosslinking, and PVA-gelatin and PVA-PVP blends on the physical and mechanical properties of the hydrogels.

Functionalized Antimicrobial Electrospun Poly (vinyl alcohol) Nanowebs

2016 ◽  
Vol 11 (2) ◽  
pp. 155892501601100 ◽  
Author(s):  
Uday Turaga ◽  
Vinitkumar Singh ◽  
Anna Gibson ◽  
Shahrima Maharubin ◽  
Carol Korzeniewski ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Vinyl Alcohol ◽  
Biomedical Applications ◽  
Antimicrobial Properties ◽  
Poly Vinyl Alcohol ◽  
Biocompatible Polymers ◽  
Gram Negative Bacteria ◽  
Gram Negative

Electrospun poly (vinyl alcohol) [PVA] nanowebs functionalized with a commercially available microbiocidal solution Reputex™ 20 were prepared. The active ingredient of Reputex™ 20 is polyhexamethylene biguanides, a safe antiseptic. Fourier Transform Infrared spectroscopy confirmed the functionalization of PVA nanowebs. Functionalized nanowebs were characterized by evaluating their antimicrobial properties, breathability characteristics and tensile properties. Functionalized nanowebs demonstrated significant antimicrobial activity against both Gram positive and Gram negative bacteria. Nanowebs developed from biocompatible polymers like PVA, and functionalized with safe antiseptics, could find many biomedical applications such as wound bandages.

Semi-interpenetrating polymeric networks based on poly(dimethylsiloxane)-chitosan-poly(vinyl alcohol) crosslinked with genipin with possible use in biomedical applications

2021 ◽  
Vol 56 (9) ◽  
pp. 5936-5955
Author(s):  
J. A. Benítez-Martínez ◽  
I. M. Garnica-Palafox ◽  
G. Vázquez-Victorio ◽  
M. Hautefeuille ◽  
F. M. Sánchez-Arévalo
Keyword(s):  
Vinyl Alcohol ◽  
Biomedical Applications ◽  
Poly Vinyl Alcohol ◽  
Polymeric Networks ◽  
Interpenetrating Polymeric Networks

scholarly journals A facile method for synthesizing free-shaped and tough double network hydrogels using physically crosslinked poly(vinyl alcohol) as an internal mold

2010 ◽  
Vol 1 (5) ◽  
pp. 693 ◽  
Author(s):  
Tasuku Nakajima ◽  
Naoyuki Takedomi ◽  
Takayuki Kurokawa ◽  
Hidemitsu Furukawa ◽  
Jian Ping Gong
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Internal Mold ◽  
Double Network ◽  
Physically Crosslinked

scholarly journals Viscosity, Miscibility Studies and Mechanical Properties of Pullulan/Poly(vinyl alcohol) Blends at 30 ºC and 40 ºC

2019 ◽  
Vol 32 (2) ◽  
pp. 260-264
Author(s):  
M.S. Jayaprakash ◽  
K Shivakumar ◽  
Shashidhar ◽  
T.K. Vishnuvardhan
Keyword(s):  
Mechanical Properties ◽  
Vinyl Alcohol ◽  
Physical And Mechanical Properties ◽  
Sem Analysis ◽  
Poly Vinyl Alcohol ◽  
Refractive Indices ◽  
Ultrasonic Velocities ◽  
Reduced Viscosity ◽  
Ubbelohde Viscometer ◽  
Miscibility Studies

The miscibility studies of pullulan and poly(vinyl alcohol) (PVA) blends by reduced viscosity measurements, refractometry, mechanical properties and SEM analysis. Viscometric measurements at 30 and 40 ºC were taken using Ubbelohde viscometer. Ultrasonic interferometric was used to measure the ultrasonic velocities of different blend compositions. Refractive indices of blend solutions with different compositions were measured directly with an Abbe′s refractometer with thermostat containing water circulated at 30 and 40 ºC. The mechanical properties, refractive index, ultrasonic velocity and density studies showed that there is an increase of all these with PVA content in the blends. But SEM studies have given an indication of immiscibility in the blend system. Overall, pullulan/PVA blends have shown good physical and mechanical properties particularly for 90/10 composition.

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