Preparation and properties of antibacterial Poly(vinyl alcohol) nanofibers by nanoparticles

Kim, Hyoung Guen; Kim, Joon Ho

doi:10.1007/s12221-011-0602-6

Cited by 29 publications

(15 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydrogels also absorb exudates and maintain necessary factors for tissue degradation and repair such as lysosomes and growth factors close to the wound. [ 9 10 ]…”

Section: Discussionmentioning

confidence: 99%

“…The starch/nZ composites films were prepared by a two-step procedure based on the method described by Tang et al . [ 9 10 ] First, a mixture of 64 wt% corn starch and nZ (at 0, 1, 2, 3, and 4 wt% nanoparticles/starch ratio), 15 wt% glycerol, 19 wt% water, and 2 wt% chamomile extract were extruded by a twin screw extruder (C. W. Brabender, Model 2802) at a screw speed of 200 rpm. Then, the extruded mixture was grounded by a Willy mill and an ultra-mill making a dry powder.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of nanozeolite/starch thermoplastic hydrogels on wound healing

et al. 2017

View full text Add to dashboard Cite

Background:Wound healing is a complex biological process. Some injuries lead to chronic nonhealing ulcers, and healing process is a challenge to both the patient and the medical team. We still look forward an appropriate wound dressing.Materials and Methods:In this study, starch-based nanocomposite hydrogel scaffolds reinforced by zeolite nanoparticles (nZ) were prepared for wound dressing. In addition, a herbal drug (chamomile extract) was added into the matrix to accelerate healing process. To estimate the cytocompatibility of hydrogel dressings, fibroblast mouse cells (L929) were cultured on scaffolds. Then, 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium-bromide assay test and interaction of cells and scaffolds were evaluated. For evaluating healing process, 48 male rats were randomly divided into four groups of four animals each (16 rats at each step). The ulcers of the first group were treated with the same size of pure hydrogels. The second group received a bandage with the same size of hydrogel/extract/4 wt% nZ (hydrogel NZE). The third group was treated with chamomile extract, and the fourth group was considered as control without taking any medicament. Finally, the dressings were applied on the chronic refractory ulcers of five patients.Results:After successful surface morphology and cytocompatibility tests, the animal study was carried out. There was a significant difference between starch/extract/4 wt% nZ and other groups on wound size decrement after day 7 (P < 0.05). At the clinical pilot study step, the refractory ulcers of all five patients were healed without any hypersensitivity reaction.Conclusion:Starch-based hydrogel/zeolite dressings may be safe and effective for chronic refractory ulcers.

show abstract

“…Hydrogels also absorb exudates and maintain necessary factors for tissue degradation and repair such as lysosomes and growth factors close to the wound. [ 9 10 ]…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effects of nanozeolite/starch thermoplastic hydrogels on wound healing

et al. 2017

View full text Add to dashboard Cite

show abstract

“…For the pure PVA film, the strong and broad band at 3690-2996 cm −1 was related to the O-H stretching frequencies of PVA's wide distribution of hydrogen bonding among the hydroxyl groups from molecular water ( Figure 1a). As shown in Figure 1b, changes in the intensity and position of this peak for samples 4-6 were representative of the interactions between the PVA and CL after treatment at different crosslinking temperatures [29,30]. After modification of zeolite with PVA at 140°C, the OH stretching frequency of the PVA shifted from 3309 to 3250 cm −1 , which indicates the formation of crosslinking between PVA, TA, and CL to form a solid compound through the hydrogen bonding mechanism [31][32][33][34].…”

Section: Ftir/atr Spectral Analysismentioning

confidence: 92%

The influence of crosslinking temperature on the spectroscopic, thermal, andmechanical properties of poly(vinyl alcohol)/zeolite composites

Denktaş¹

2019

Turk J Phys

View full text Add to dashboard Cite

The aim of this study was to understand the effect of crosslinking temperature on the spectroscopic, thermal, and mechanical properties of poly(vinyl alcohol) (PVA)/zeolite composites. The PVA nanocomposite films were prepared using the solvent casting method with tartaric acid as the crosslinker. The changes in the structures of pure PVA film and powder clinoptilolite (CL) and nanocomposite films were analyzed by means of ATR-FTIR spectroscopy. The effect of both crosslinking temperature and CL on the composite films prepared by the addition of constant CL to the polymer matrix at different crosslinking temperatures (series II) and pure PVA films prepared with different crosslinking temperatures (series III films) shows that the tensile strengths increase with increasing crosslinking temperature, while the elongation at break of films decreases due to the crosslinking temperature and CL. The differential scanning calorimetry results show that the crosslinking temperature leads to an increase in the glass transition ( Tg) of nanocomposites.According to the results of this study, both zeolite and crosslinking temperature affect the thermal and mechanical properties of the material. These results may be used for membrane technology.

show abstract

“…However, renewability and environmental concerns have been shifting attention of research towards environmentally friendly and biodegradable polymers. Polymers like polylactide [46], polyurethane [29], cellulose acetate [28], chitosan [47,48], poly(vinyl alcohol) [49] among others have attracted a lot of interest in research with successful reports for use in antimicrobial packaging due to their biodegradability and compatibility. Of interest to this study is cellulose acetate (CA), a regenerated natural polymer from purified cellulose.…”

Section: Introductionmentioning

confidence: 99%

Electrospun cellulose acetate and poly(vinyl chloride) nanofiber mats containing silver nanoparticles for antifungi packaging

et al. 2019

View full text Add to dashboard Cite

Nanofiber mats of poly(vinyl chloride) (PVC) and cellulose acetate (CA) encapsulated with silver (Ag) nanoparticles were fabricated via electrospinning for potential use as antimicrobial food packaging materials. 16 wt% PVC was prepared in 1:1 w/w tetrahydrofuran-N,N-dimethylformamide while 16 wt% CA was prepared in 3:2 (w/w) Acetone-N,N-dimethylformamide. Scanning electron microscopy analysis showed that thinner fibers could be electrospun from cellulose acetate as compared to poly(vinyl chloride) at the same solution concentrations with fiber diameters ranging from 70 to 130 nm for cellulose acetate and 180-340 nm for poly(vinyl chloride). Nanofiber diameter reduced with addition and increase of silver nanoparticles from 0 to 1 wt%. Due to the smaller cellulose acetate nanofiber diameter, its mats had lower air permeability rates. Tensile strength tests indicated that the nanofiber mats had marginal to good tensile strength values relative to film based packaging materials. Antimicrobial examination of the nanofiber mats against yeast and mould indicated that there was inhibited growth of the microorganisms on mats containing silver nanoparticles.

show abstract

Preparation and properties of antibacterial Poly(vinyl alcohol) nanofibers by nanoparticles

Cited by 29 publications

References 20 publications

Effects of nanozeolite/starch thermoplastic hydrogels on wound healing

Effects of nanozeolite/starch thermoplastic hydrogels on wound healing

The influence of crosslinking temperature on the spectroscopic, thermal, andmechanical properties of poly(vinyl alcohol)/zeolite composites

Electrospun cellulose acetate and poly(vinyl chloride) nanofiber mats containing silver nanoparticles for antifungi packaging

Contact Info

Product

Resources

About