Preparation and properties of poly(vinyl alcohol)/chitosan blend bionanocomposites reinforced with cellulose nanocrystals/ZnO-Ag multifunctional nanosized filler

Azizi, Susan; Ahmad, Mansor Bin; Hussein, Mohd Zobir; Ibrahim, Nor Azowa; Namvar, Farideh

doi:10.2147/ijn.s60274

Cited by 83 publications

(15 citation statements)

References 41 publications

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“…These findings suggest that the inclusion of nanoparticles did not change the structure of the matrix. According to Azizi et al [44], the fact of there was neither new peaks nor peak shifts compared with Ch pattern would be consistent with the coexistence of two phases (polymer and nanoparticles). The average crystallite size was calculated from XRD peak located at 18°based on the Debye-Scherrer equation [45,46]:…”

Section: X-ray Studiesmentioning

confidence: 79%

Assembly of chitosan support matrix with gallic acid-functionalized nanoparticles

Lamarra

Giannuzzi

Rivero

et al. 2017

Materials Science and Engineering: C

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The incorporation of gallic acid (GA) in a direct way or into nanoparticles included in chitosan edible films appears as a suitable approach to increase its preservation upon adverse conditions. The addition of nanoparticles to chitosan-based matrices resulted in improvements in their solubility, swelling, and mechanical properties. It is worth noting that by means of the nanoencapsulation, the release process can be modulated in relation to the delivery of GA included directly in the matrix, releasing the agent at a lower rate for a longer time. Films containing functionalized nanoparticles are promising as a means to develop tailor-made support matrices for improving the shelf stability of the included active compound. From the point of view of the antimicrobial activity, all studied films showed bacteriostatic activity against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Salmonella spp. and Candida vinaria. The results suggest that active films with nanoparticles could be a potential candidate for the support and controlled release of active compounds such as gallic acid.

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Section: X-ray Studiesmentioning

confidence: 79%

Assembly of chitosan support matrix with gallic acid-functionalized nanoparticles

Lamarra

Giannuzzi

Rivero

et al. 2017

Materials Science and Engineering: C

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“…Adsorbent for the removal of heavy metal ions [160][161][162] Adsorbent for the removal of acidic reagents, metals, amino acids, proteins, and other compounds [163] Biocomposite films [164,165] Biomedical applications [166] Coronary artery bypass graft [167] Drug delivery [168] Electronic [169] Food packaging [170] Medical material [171] Odor treatment [172] Self-healing [173] Textiles [174] Wound dressing [175,176] Wound healing (good antibacterial effect) [177] 9.1. Drug Delivery Nowadays, controlled drug delivery provides many advantages to humans, e.g., it can enhance efficacy and reduce or eliminate unwanted side effects and also the level of drugs.…”

Section: Potential Applications Referencesmentioning

confidence: 99%

Natural-Fiber-Reinforced Chitosan, Chitosan Blends and Their Nanocomposites for Various Advanced Applications

et al. 2022

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There has been much effort to provide eco-friendly and biodegradable materials for the next generation of composite products owing to global environmental concerns and increased awareness of renewable green resources. This review article uniquely highlights the use of green composites from natural fiber, particularly with regard to the development and characterization of chitosan, natural-fiber-reinforced chitosan biopolymer, chitosan blends, and chitosan nanocomposites. Natural fiber composites have a number of advantages such as durability, low cost, low weight, high specific strength, non-abrasiveness, equitably good mechanical properties, environmental friendliness, and biodegradability. Findings revealed that chitosan is a natural fiber that falls to the animal fiber category. As it has a biomaterial form, chitosan can be presented as hydrogels, sponges, film, and porous membrane. There are different processing methods in the preparation of chitosan composites such as solution and solvent casting, dipping and spray coating, freeze casting and drying, layer-by-layer preparation, and extrusion. It was also reported that the developed chitosan-based composites possess high thermal stability, as well as good chemical and physical properties. In these regards, chitosan-based “green” composites have wide applicability and potential in the industry of biomedicine, cosmetology, papermaking, wastewater treatment, agriculture, and pharmaceuticals.

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“…Ravichandran [38] has also reported that the mechanical properties of PVA film can be strengthened when doped with nano zinc oxide particles. Azizi et al [39] have observed that in comparison to the poly(vinyl alcohol)/chitosan, filled polymer blend showed an increase trend in tensile properties, but the reinforcing effect of cellulose (CNC) was less than that of the CNC/ZnO-Ag NPs.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Co-doped ZnO–PVA Nanocomposite for EMI Shielding

Singh¹,

Kumar²,

Sawant³

et al. 2015

Polymer-Plastics Technology and Engineering

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The paper describes the mechanical properties and electromagnetic shielding (EMI) of Co doped ZnO-Poly(vinyl alcohol) (PVA) nanocomposite. Significant improvements in mechanical properties can be obtained by incorporating inorganic nano fillers. The EModulus and tensile strength were found to be enhanced with the increase in the doping concentration of Co .05 Zn .95 O incorporated in PVA matrix. Further, we have observed that EMI of the composite filled with 2 wt% concentration of Co .05 Zn .95 O in the PVA matrix exhibited utmost reflection loss of -47.31 dB in the bandwidth 8-12 GHz which may be attributed to good compatibility of dielectric and magnetic properties of materials. Downloaded by [University of Sussex Library] at 12:06 24 August 2015 2

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Preparation and properties of poly(vinyl alcohol)/chitosan blend bionanocomposites reinforced with cellulose nanocrystals/ZnO-Ag multifunctional nanosized filler

Cited by 83 publications

References 41 publications

Assembly of chitosan support matrix with gallic acid-functionalized nanoparticles

Assembly of chitosan support matrix with gallic acid-functionalized nanoparticles

Natural-Fiber-Reinforced Chitosan, Chitosan Blends and Their Nanocomposites for Various Advanced Applications

Co-doped ZnO–PVA Nanocomposite for EMI Shielding

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