Effect of Chitosan concentration and heat treatment on electrospun PVA/Chitosan nanofibers

Riwu, Yonas Ferdinand; Loi, Fames Humala Putra; Kusumaatmaja, Ahmad; Roto,; Triyana, Kuwat

doi:10.1063/1.4958585

Cited by 6 publications

(5 citation statements)

References 11 publications

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“…showed that multicarboxylic acids present at high percentages (10% or above) can be used for cross-linking PVA and chitosan; they also found more expression of hydrophobicity in the thus-modified fibers. [ 19 ] Heat treatment was also shown to increase the water insolubility of the PVA/chitosan fibers by Riwu et al, but the combination of the effects of these modifiers, the heat treatments, and the addition of green cross-linking agents (below 5%) have not yet been investigated [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…Cui et al, in 2017, showed that two parallel processes can take place: the increase in chitosan content decreased the contact angles, but the cross-linking with glutaraldehyde increased the hydrophobicity of the net [ 26 ]. This process could also be induced by additional heat treatment [ 15 , 32 ] or plasma treatment [ 45 ]. This is also true in the case of the green cross-linker—citric acid [ 46 ]—which was chosen in the present work [ 47 ].…”

Section: Discussionmentioning

confidence: 99%

“…Citric acid can be used to cross-link different polymers, including PVA [ 15 , 16 , 30 ] or chitosan (as this ionic cross-linker can increase the water-resisting capacity of chitosan films [ 31 ]), or even both of these polymers [ 19 ]. The cross-linkage can be initiated by heat treatment [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of the PVA/Chitosan/Citric Acid Ratio on the Hydrophilicity of Electrospun Nanofiber Meshes

et al. 2021

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In this study, scaffolds were prepared via an electrospinning method for application in oral cavities. The hydrophilicity of the fiber mesh is of paramount importance, as it promotes cell spreading; however, the most commonly used polyvinyl alcohol (PVA) and other hydrophilic fiber meshes immediately disintegrate in aqueous media. In contrast, the excessive hydrophobicity of the scaffolds already inhibits cells adhesion on the surface. Therefore, the hydrophilicity of the fiber meshes needed to be optimized. Scaffolds with different polyvinyl alcohol (PVA)/chitosan/citric acid ratios were prepared. The addition of chitosan and the heat initiated cross-linkage of the polymers via citric acid enhanced the scaffolds’ hydrophobicity. The optimization of this property could be followed by contact angle measurements, and the increased number of cross-linkages were also supported by IR spectroscopy results. The fibers’ physical parameters were monitored via low-vacuum scanning electron microscopy (SEM) and atomic force microscopy (AFM). As biocompatibility is essential for dental applications, Alamar Blue assay was used to prove that meshes do not have any negative effects on dental pulp stem cells. Our results showed that the optimization of the fiber nets was successful, as they will not disintegrate in intraoral cavities during dental applications.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The Effect of the PVA/Chitosan/Citric Acid Ratio on the Hydrophilicity of Electrospun Nanofiber Meshes

et al. 2021

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“…The nanofibers produced by electrospinning resulted in a smaller diameter than the fibers created by conventional methods [1][2][3] . The electrospinning method produced nanofibers in the range of micrometers until nanometer scale [3][4][5] . These small fibers are potentially using for many applications, such as membrane of filtration and composite materials [6][7][8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

The Spatial Arrangement of The Electric Field in the Needle-Plate Electrospinning

Kusumaatmaja,

Manaf,

Hidayat

et al. 2023

Indonesian J Appl Phys

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<p class="IJASEITAbtract">The electric field distribution of the Neddle-Plate (NP) electrospinning set up has reported due to the simple classical electrodynamics solutions. The charge is assumed to distribute uniformly in the needle (nozzle) and the collector (plate). The electric field has an influence only in the early stage of the electrospinning process. The electric field and the viscosity of the jet fluid have caused the bending of the straight jet. The high viscosity of the fluid can preserve the straight jet length much longer. The electric field gives the initial angular momentum of the jet due to the whipping motion of the jet. For the area away from the nozzle, the electric does not influence the whipping motion. Then the whipping motion solely due to the influence from the charge repulsion of the jet fluid and the evaporation of the solvent.</p>

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“…Previously, thermal treatment is used to prepare water-resistant electrospun mats in combination with crosslinking agents such as citric acid and GA intended for wound healing and antibacterial applications. [21,22] As PVA exhibits bioinertness and it tries to modulate the bioactivity by reinforcing of cerium oxide (CO) nanoparticles. The CO belongs to the lanthanide series and the most abundant rare earth metal, also known as nanoceria.…”

Section: Introductionmentioning

confidence: 99%

Electrospun mat of thermal‐treatment‐induced nanocomposite hydrogel of polyvinyl alcohol and cerium oxide for biomedical applications

Ranglani

Kharche

et al. 2020

J of Applied Polymer Sci

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Hydrogels are one of the most thought‐provoking formulations used widely for biomedical applications. In the present investigation, poly(vinyl) alcohol (PVA) and its cerium oxide (CO) composite‐based hydrogels were prepared by the combination of electrospinning and thermal processing technique. The partial crosslinking, along with time‐controlled heating (10 min), delivered PVA hydrogel. The mechanism was explained with Fourier‐transform infrared spectroscopy analysis, where the hydroxyl group disappeared in long‐duration (30 min) of heat treatment and they retain in lesser duration. The heat‐treated PVA transformed from amorphous to crystalline, since the Tg of PVA disappeared in 30 min heat treatment, while the Tg increased to 85°C (10 min heat treatment) from 70°C in PVA, suggested the full and partial crystallinity. The swelling and porosity studies reveal the hydrogel formation of heat‐treated PVA. Interestingly, CO reinforced PVA composites show better swelling with respect to heat‐treated PVA. Furthermore, CO reinforced PVA hydrogel demonstrated better biocompatibility platelet adhesion and accelerated wound healing competence.

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Effect of Chitosan concentration and heat treatment on electrospun PVA/Chitosan nanofibers

Cited by 6 publications

References 11 publications

The Effect of the PVA/Chitosan/Citric Acid Ratio on the Hydrophilicity of Electrospun Nanofiber Meshes

The Effect of the PVA/Chitosan/Citric Acid Ratio on the Hydrophilicity of Electrospun Nanofiber Meshes

The Spatial Arrangement of The Electric Field in the Needle-Plate Electrospinning

Electrospun mat of thermal‐treatment‐induced nanocomposite hydrogel of polyvinyl alcohol and cerium oxide for biomedical applications

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