Compatibility studies of chitosan/PVA blend in 2% aqueous acetic acid solution at 30°C

Kumar, H.M.P. Naveen; Prabhakar, M. N.; Prasad, C. Venkata; Rao, K. Madhusudhan; Reddy, T. Veera; Subha, M. C. S.

doi:10.1016/j.carbpol.2010.04.021

Cited by 130 publications

(38 citation statements)

References 25 publications

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“…Here we can observe from Figure (b), that presence of CS in the blends has changed the diffraction patterns of PVA. One significant peak was observed at 2 θ of 19‐20° for each blend ratio, which indicates the strong inter and intramolecular hydrogen bonding between CS and PVA chains …”

Section: Resultsmentioning

confidence: 96%

Electrospinning, mechanical properties, and cell behavior study of chitosan/PVAnanofibers

Koosha

Mirzadeh

2015

J Biomedical Materials Res

228

143

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Electrospinning process has been widely used to produce nanofibers from polymer blends. Poly(vinyl alcohol) (PVA) and chitosan (CS) have numerous biomedical applications such as wound healing and tissue engineering. Nanofibers of CS/PVA have been prepared by many works, however, a complete physicochemical and mechanical characterization as well as cell behavior has not been reported. In this study, PVA and CS/PVA blend solutions in acetic acid 70% with different volume ratios (30/70, 50/50, and 70/30) were electrospun in constant electrospinning process parameters. The structure and morphology of nanofibrous mats were characterized by SEM, FTIR, and XRD methods. The best nanofibrous mat was achieved from the CS/PVA 30/70 blend solution regarding the electrospinning throughput. The dynamic mechanical thermal analysis (DMTA) of PVA and CS/PVA 30/70 nanofibrous mats were measured which were not considered in the previous studies. DMTA results in accordance to the DSC analysis approved the partial compatibility between the two polymers, while a single glass transition temperature was not observed for the blend. The tensile strength of PVA and CS/PVA nanofibers were also reported. Results of cell behavior study indicated that the heat stabilized nanofibrous mat CS/PVA 30/70 was able to support the attachment and proliferation of the fibroblast cells.

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Section: Resultsmentioning

confidence: 96%

Electrospinning, mechanical properties, and cell behavior study of chitosan/PVAnanofibers

Koosha

Mirzadeh

2015

J Biomedical Materials Res

228

143

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“…The absorption band at 3341 cm −1 was attributed to the free and bound OH groups in SPI, and the peak at 1125 cm −1 was due to the PO groups stretching in tributyl phosphate. The PVA films exhibited several absorption peaks at 3410, 2940, 1095, and 847 cm −1 , which were attributed to the resonance of OH, CH 2 , CO, and CC, respectively . The peak of PO in tributyl phosphate was constant at the same ratio of introduction and thus was used as an interior standard peak.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of poly(vinyl alcohol) and 1,2,3‐propanetriol diglycidyl ether incorporated soy protein isolate‐based films

Zhang

et al. 2015

J of Applied Polymer Sci

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Novel biodegradable films were prepared from soy protein isolate (SPI), poly(vinyl alcohol) (PVA), glycerol, and 1,2,3‐propanetriol diglycidyl ether (PTGE). The mechanical, hydrophilic, and compatible properties of the films were investigated. The influence of PTGE as a crosslinker on the properties of the SPI/PVA/PTGE films was examined with Fourier transform infrared spectroscopy, X‐ray diffraction (XRD), thermogravimetric analysis, mechanical analysis, contact angle measurements, and scanning electron microscopy. XRD and contact angle examination confirmed that the addition of PTGE altered the film microstructure to a crystalline one. The mechanical properties and water resistance of the SPI/PVA/PTGE films increased notably compared with those of the unmodified SPI films. All results indicate that the networks were formed between SPI and PTGE and played an important role in forming a homogeneous structure in the obtained films. The novel biodegradable films provide a convenient and promising way for preparing environmentally friendly film materials. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42578.

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“…The change in the characteristic shape of the CHI spectra, as well as the shifting of peak to a lower frequency range on account of hydrogen bonding between -OH of PVA and -OH or -NH 2 of chitosan were observed in the blended films [52]. These results suggested the formation of hydrogen bonds between the CHI and PVA molecules [53]. Special features are exhibited for the BAPS (Figure 1D).…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of a Bioartificial Polymeric System with Potential Antibacterial Activity: Chitosan-Polyvinyl Alcohol-Ampicillin

et al. 2018

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Bio-artificial polymeric systems are a new class of polymeric constituents based on blends of synthetic and natural polymers, designed with the purpose of producing new materials that exhibit enhanced properties with respect to the individual components. In this frame, a combination of polyvinyl alcohol (PVA) and chitosan, blended with a widely used antibiotic, sodium ampicillin, has been developed showing a moderate behavior in terms of antibacterial properties. Thus, aqueous solutions of PVA at 1 wt.% were mixed with acid solutions of chitosan at 1 wt.%, followed by adding ampicillin ranging from 0.3 to 1.0 wt.% related to the total amount of the polymers. The prepared bio-artificial polymeric system was characterized by FTIR, SEM, DSC, contact angle measurements, antibacterial activity against Staphylococcus aureus and Escherichia coli and antibiotic release studies. The statistical significance of the antibacterial activity was determined using a multifactorial analysis of variance with ρ < 0.05 (ANOVA). The characterization techniques did not show alterations in the ampicillin structure and the interactions with polymers were limited to intermolecular forces. Therefore, the antibiotic was efficiently released from the matrix and its antibacterial activity was preserved. The system disclosed moderate antibacterial activity against bacterial strains without adding a high antibiotic concentration. The findings of this study suggest that the system may be effective against healthcare-associated infections, a promising view in the design of novel antimicrobial biomaterials potentially suitable for tissue engineering applications.

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Compatibility studies of chitosan/PVA blend in 2% aqueous acetic acid solution at 30°C

Cited by 130 publications

References 25 publications

Electrospinning, mechanical properties, and cell behavior study of chitosan/PVAnanofibers

Electrospinning, mechanical properties, and cell behavior study of chitosan/PVAnanofibers

Preparation and characterization of poly(vinyl alcohol) and 1,2,3‐propanetriol diglycidyl ether incorporated soy protein isolate‐based films

Synthesis and Characterization of a Bioartificial Polymeric System with Potential Antibacterial Activity: Chitosan-Polyvinyl Alcohol-Ampicillin

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