it is possible to develop new biodegradable active packaging by coating biopolymers on paper-based packaging material and also incorporating proper antimicrobial agents into coating structure. in this study bacterial contamination of two commercial cardboard were evaluated.in order to manufacture an appropriate antibacterial packaging material, coating of chitosan-poly vinyl alcohol blends with...

A new class of biologically active nanocomposites and modified polymers based on poly (vinyl alcohol) (PVA) with some organic compounds [II, IV, V VI] were synthesized using silver nanoparticles (Ag-NPs). All nucleophilic substitution interactions characterized by FTIR, DSC TGA. The biological activity the was evaluated against: gram (+) (staphylococcus aureus) (-): (Es cherichia coli bacteria)...

Poly(vinyl alcohol) and poly(vinyl pyrrolidone) were blended and films were obtained by casting method. Glutaraldehyde, hydrochloric acid and lactic acid were added to investigate their effect on mechanical properties, swelling and solubility of the blends with the aim to find a possible material candidate for medium or long term implants. Combination of all three additives (lactic acid, glutar...

The use of biodegradable films to replace the synthetic polymers prepared from natural has been strongly limited owing their poor barrier and mechanical properties. modification was carried out with a partial replacement polymer, such as PVA (poly vinyl alcohol), increase properties film. addition an active ingredient in form nanoparticles Zinc Oxide (ZnO), enhanced packaging materials compared...

Citation: Sapalidis A, Sideratou Z, Panagiotaki KN, Sakellis E, Kouvelos EP, Papageorgiou S and Katsaros F (2018) Fabrication of Antibacterial Poly(Vinyl Alcohol) Nanocomposite Films Containing Dendritic Polymer Functionalized Multi-Walled Carbon Nanotubes. Front. Mater. 5:11. doi: 10.3389/fmats.2018.00011 Fabrication of antibacterial Poly(Vinyl alcohol) nanocomposite Films containing Dendritic...

poly(vinyl acetate) is synthesized via solution polymerization, and then it is converted to poly(vinyl alcohol) by alkaline alcoholysis. the aim of the work study was to investigate statistically the  influence of reaction variables in vinyl acetate polymerization, the conversion of this monomer to polymer, degree of branching of acetyl group in poly(vinyl acetate), as well as the molecular wei...

A selectively cross-linking method, which is based on the ‘‘di–diol” interaction between poly(vinyl alcohol) and borate and the strong electrostatic interaction between chitosan and tripolyphosphate, was developed. Chitosan/poly(vinyl alcohol) films cross-linked separately with borate, tripolyphosphate and borate/tripolyphosphate were then prepared in terms of this method. Water vapor permeatio...

poly vinyl alcohol/chitosan nanofibrous mat were prepared by electrospinning method with suitable pore sizes as potential matrices for soft tissue engineering. the designed scaffolds by electrospinning method evaluated by differentanalyses such morphological, mechanical, and cellular analysis.microscopic results showed diameters of poly vinyl alcohol/chitosan nanofibers were approximately 150 n...

Electrospun poly (vinyl alcohol) [PVA] nanowebs functionalized with a commercially available microbiocidal solution ReputexTM 20 were prepared. The active ingredient of ReputexTM 20 is polyhexamethylene biguanides, a safe antiseptic. Fourier Transform Infrared spectroscopy confirmed the functionalization of PVA nanowebs. Functionalized nanowebs were characterized by evaluating their antimicrobi...

The mucoadhesive hydrogel film was prepared and optimized for the purpose of local drug delivery to oral cavity for the treatment of oral Candidiasis. The mucoadhesive hydrogel film was prepared with the poly(vinyl alcohol) by freeze/thaw crosslinking technique. 3(2) full factorial design was employed to optimize the formulation. Number of freeze/thaw cycles (4, 6, and 8 cycles) and the concent...