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Bhandari NL, Bhandari G, Bist K, Adhikari D, Dhakal KN, Adhiklari R, Lach R, Kim AA, Yoo DJ, Poudel MB. Comparative investigation of fillers loading effect on morphological, micromechanical, and thermal properties of polyvinyl alcohol/biofillers-based composites. Int J Biol Macromol 2024:136192. [PMID: 39357722 DOI: 10.1016/j.ijbiomac.2024.136192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 09/27/2024] [Accepted: 09/29/2024] [Indexed: 10/04/2024]
Abstract
Polyvinyl alcohol (PVA)-based biocomposites were fabricated by the incorporation of chitosan (Ch), cellulose fibers (CS), and their mixture (1:1 ratio). Fillers with various loading (2, 4, 8, and 10 wt.-%) were incorporated into PVA employing the solution casting method. The fillers and biocomposites were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), brightfield microscopy, tensile and microindentation tests, contact angle measurement and thermogravimetric analysis (TGA). FTIR spectra revealed the removal of lignin, and intermolecular H-bonding between PVA and fillers promoting their filler-matrix interfacial interactions. Crystallographic results showed varied crystallite sizes and crystallinity of composites. Microscopic techniques revealed a uniform filler distribution, attributed to their compatibility with PVA. Tensile and microindentation tests demonstrated a decreased tensile strength (3.3-8.2 MPa of the composites compared to 15.7 MPa of the matrix) and Martens hardness (HM) of biocomposites. However, their value was increased with higher filler concentration, signifying the mechanical reinforcement. Contact angle analysis confirms the decreased wettability (hydrophilicity) of biocomposites, attributed to higher compatibility of fillers with PVA and intermolecular H-bonding between them. A slightly decreased thermal stability of biocomposites with filler incorporation is implied by TGA results despite their uniform distribution and strong matrix-filler interfacial interactions.
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Affiliation(s)
- Netra Lal Bhandari
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
| | - Ganesh Bhandari
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Ghantaghar, Kathmandu, Nepal
| | - Kabita Bist
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Deepjyoti Adhikari
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Kedar Nath Dhakal
- Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Rameshwar Adhiklari
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal; Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Ralf Lach
- Polymer Service GmbH Merseburg (PSM), Geusaer Straße 81f, 06217 Merseburg, Germany
| | - Allison A Kim
- Department of Healthcare Management, Woosung University, Daejon, Republic of Korea
| | - Dong Jin Yoo
- Department of Energy Storage/Conversion Engineering, R&D Education Center for Specialized Graduate School of Hydrogen and Fuel Cells Engineering, Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeollabuk-do 561-756, Republic of Korea
| | - Milan Babu Poudel
- Department of Energy Storage/Conversion Engineering, R&D Education Center for Specialized Graduate School of Hydrogen and Fuel Cells Engineering, Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeollabuk-do 561-756, Republic of Korea.
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Rathore K, Singh I, Balani K, Sharma S, Verma V. Fabrication and characterization of multi-layered coaxial agar-based electrospun biocomposite mat, novel replacement for transdermal patches. Int J Biol Macromol 2024; 275:133712. [PMID: 38977044 DOI: 10.1016/j.ijbiomac.2024.133712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 06/15/2024] [Accepted: 07/05/2024] [Indexed: 07/10/2024]
Abstract
In the performed study, a novel fabrication of agar-based nanofibers was electrospun in an asymmetric bilayer dressing for biomedical transdermal patches. The optimal parameters for the fabrication of agar-based nanofibers after optimization were a feed rate of 10 μL/min, a 7 cm collector-to-nozzle distance, a 15 kV applied voltage, and a 700-rpm rotating collector speed. Coaxial nanofibers, as a second asymmetric layer, were produced using polyvinyl alcohol (PVA) with cephalexin hydrate, an antibacterial drug, as the core and agar-PCL as the sheath. The morphology of the developed uniaxial and coaxial nanofibrous layers was analysed using a scanning electron microscope and transmission electron microscopy, respectively. For the formation of bilayer asymmetric structures, the agar-PCL uniaxial layer was fabricated over the layer of coaxial PVA and agar-PCL layers for sustained drug release. The agar-based nanofibrous mats exhibited tensile strength of 7 MPa with 40 % elongation failure, 8-fold increased swelling, enhanced wettability (60° contact angle), and a moisture transmission rate of 2174 g/m2/day. The developed coaxial bilayer mats exhibited antimicrobial activity, hemocompatibility, and cytocompatibility. Overall, this novel agar nanofibrous dressing offers promising potential for advanced biomedical applications, particularly as transdermal patches for efficient drug delivery systems.
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Affiliation(s)
- Kalpana Rathore
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India; Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Indrajeet Singh
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India
| | - Kantesh Balani
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India
| | - Sandeep Sharma
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, Punjab, India.
| | - Vivek Verma
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India; Centre for Environmental Science & Engineering, Indian Institute of Technology Kanpur, India; Samtel Centre for Display Technologies, Indian Institute of Technology Kanpur, India; National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, India.
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3
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Ma Y, Cao Y, Zhang L, Yu Q. Preservation of chilled beef using active films based on bacterial cellulose and polyvinyl alcohol with the incorporation of Perilla essential oil Pickering emulsion. Int J Biol Macromol 2024; 271:132118. [PMID: 38811316 DOI: 10.1016/j.ijbiomac.2024.132118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/26/2024] [Accepted: 05/04/2024] [Indexed: 05/31/2024]
Abstract
In this study, Perilla essential oil (PEO) Pickering emulsions, prepared using soybean protein isolate-chitosan nanoparticles (SPI-CSNPs) as emulsifiers (SCEO), were used to improve the performance of bacterial cellulose/polyvinyl alcohol (BC/PVA) films for application in chilled beef preservation. The SCEO has a smaller particle size (185 nm), higher viscosity, a more uniform dispersion and was more stable at an oil phase volume fraction of 80 %. An increase in the films' surface roughness and in the hydrogen bonding between SCEO and the films' matrix was also observed, resulting in a lower tensile strength (TS, 94.75-62.02 MPa) and higher elongation at break (EAB, 26.78-55.62 %). Moreover, the thermal stability, water vapor permeability, antioxidant and antibacterial properties of the composite films improved as the SCEO content increased. Furthermore, the Pickering emulsion method was effective in preventing the loss of PEO during storage. Overall, one particular composite film, BP/SCEO3, could prolong the shelf life of chilled beef by up to 14 days, and hence was promising for food preservation.
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Affiliation(s)
- Yuying Ma
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Yinjuan Cao
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Li Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Qunli Yu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
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Castro DPDE, Santana RMC. Influence of Chemical Nature of Citric and Tartaric Acids on Reaction Time of the Crosslinking of Polyvinyl Alcohol Hydrogels. AN ACAD BRAS CIENC 2024; 96:e20230092. [PMID: 38511742 DOI: 10.1590/0001-3765202420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 11/16/2023] [Indexed: 03/22/2024] Open
Abstract
Poly(vinyl alcohol) (PVOH) is a water-soluble polymer having a hydroxyl group as a functional group contributing to excellent membrane-forming and mechanical performance. PVOH is obtained by the hydrolysis of polyvinyl acetate, and its physical properties are affected by its degree of hydrolysis, whether, partial or complete. In this study, PVOH hydrogels were synthesized by a solution under stirring and heating techniques with citric (AC) and tartaric acids (AT) crosslinker agents, with different time reactions of 20 min.; 1; 2, and 3 h were investigated. These samples were characterized by the kinetics of water uptake, gel fraction, thermal analysis, and physical-chemical analysis, and their structure was elucidated. The results obtained have shown chemical modification by organic acids and improved the properties to good thermal stability and swelling to AT hydrogels up to 900% water uptake. In the gel fraction, the samples' esterification was shown and verified by FTIR spectra. To AC hydrogels the chemical modification was low due to the steric hindrance, which caused disintegration of the hydrogel in swelling and gel fraction test, but with absorption in the moisture test performed. The incorporation and effects of citric and tartaric acids enable the development of new hydrogel systems, with specific properties.
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Affiliation(s)
- Dione P DE Castro
- Federal University of Rio Grande do Sul, Department of Materials Engineering, Av. Bento Gonçalves 9500, Agronomia, 91501-970 Porto Alegre, RS, Brazil
| | - Ruth Marlene C Santana
- Federal University of Rio Grande do Sul, Department of Materials Engineering, Av. Bento Gonçalves 9500, Agronomia, 91501-970 Porto Alegre, RS, Brazil
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Rosciardi V, Baglioni P. Role of amylose and amylopectin in PVA-starch hybrid cryo-gels networks formation from liquid-liquid phase separation. J Colloid Interface Sci 2023; 630:415-425. [DOI: 10.1016/j.jcis.2022.10.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/20/2022] [Accepted: 10/17/2022] [Indexed: 11/21/2022]
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Tian P, Yang S, Liu W, Zhang J. Acrylamide-modified polyvinyl alcohol and combined with graphene oxide for low dielectric constant composite films. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tuning the thermal and mechanical properties of poly(vinyl alcohol) with 2,5-furandicarboxylic acid acting as a biobased crosslinking agent. Polym J 2021. [DOI: 10.1038/s41428-021-00583-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Gautam L, Warkar SG, Ahmad SI, Kant R, Jain M. A review on carboxylic acid cross‐linked polyvinyl alcohol: Properties and applications. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25849] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Leela Gautam
- Department of Applied Chemistry Delhi Technological University New Delhi India
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Sudhir G. Warkar
- Department of Applied Chemistry Delhi Technological University New Delhi India
| | - Syed Ishraque Ahmad
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Ravi Kant
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Manish Jain
- Department of Applied Chemistry Delhi Technological University New Delhi India
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Zhao D, Nuntanaranont T, Thuaksubun N, Meesane J. Osteo-conductive hydrogel scaffolds of poly(vinylalcohol) with silk fibroin particles for bone augmentation: Structural formation and in vitro testing. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211055720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bone augmentation is an effective approach to treat patients who have bone loss at the maxillofacial area. In this research, osteo-conductive hydrogel scaffolds of poly(vinylalcohol) (PVA) with silk fibroin particles (SFP) were fabricated. The SFP were formed by dropping a solution of silk fibroin into acetone at different volume ratios (v/v) of silk to acetone: 1:3 (SFP-3), 1:6 (SFP-6), 1:12 (SFP-12), and 1:24 (SFP-24). The various SFP solutions were mixed with a PVA solution before fabrication into hydrogels by freeze-thawing. Afterwards, the hydrogels were freeze-dried to fabricate the scaffolds. The particle size and charge, molecular organization, and morphology of the SFP were characterized and observed with dynamic light scattering, Fourier transform infrared spectroscopy, differential scanning calorimetry, and scanning electron microscopy (SEM). The morphologies of the hydrogel scaffolds were observed with SEM. Swelling percentage was used to assess the swelling behavior of the hydrogel scaffolds. The mechanical properties were also tested. The scaffolds were cultured with osteoblast cells to test the biological performance, cell viability and performance, alkaline phosphatase activity, calcium deposition, and total protein. The SFP-24 was the smallest in particle size. PVA hydrogel scaffolds with SFP-24 demonstrated low particle aggregation, good particle distribution within the scaffold, and a lower swelling percentage. PVA hydrogel scaffolds with SFP had higher mechanical stability than scaffolds without the SFP. Furthermore, the PVA hydrogel scaffold with SFP-24 had better biological performance. Finally, the results demonstrated that PVA hydrogel scaffolds with SFP-24 showed good osteo-conductive performance which is promising for bone augmentation.
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Affiliation(s)
- Dan Zhao
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Thongchai Nuntanaranont
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Nuttawut Thuaksubun
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Jirut Meesane
- Institute of Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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Synthesis of syndiotacticity-rich high polymerization degree PVA polymers with VAc and VPa, fabrication of PVA fibers with superior mechanical properties by wet spinning. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02752-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Ren T, Gan J, Zhou L, Chen H. Physically Crosslinked Hydrogels Based on Poly (Vinyl Alcohol) and Fish Gelatin for Wound Dressing Application: Fabrication and Characterization. Polymers (Basel) 2020; 12:E1729. [PMID: 32748896 PMCID: PMC7465127 DOI: 10.3390/polym12081729] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 11/16/2022] Open
Abstract
We developed the interpenetrating double network composite hydrogel based on poly (vinyl alcohol) (PVA) and fish gelatin (FG) via thermal treatment and repeated freeze-thawing. A function of salicylic acid was incorporated into the hydrogel to improve its antibacterial properties. The color values, water contents, water evaporation rate, and swelling behavior were investigated. The drug-loading performance of the composite hydrogel was demonstrated by loading salicylic acid in various hydrogel systems. Moreover, the cumulative dissolution percentage of salicylic acid and the antibacterial activity of composite hydrogel were carried out. The results revealed that as FG concentration increased from 0% to 3.75% (w/v), gels changed from white to slight yellow and the swelling ratio increased from 54% to 83% (within 8 h). The presence of FG decreased the water content of gels which ranged from 86% to 89% and also decreased water evaporation rate. All gels presented the swelling index within 0.5-1.0, indicating a non-Fickian diffusion mechanism. The drug sustained dissolution behavior of pure PVA and composite hydrogel showed the same trend. Besides, the presence of the obvious bacteriostatic zones means that drug-loaded composite hydrogels have an effective antibacterial property. These results demonstrated that PVA/FG-based interpenetrating hydrogel is an appropriate biomaterial for drug-carrying wound dressing application.
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Affiliation(s)
- Teng Ren
- Marine College, Shandong University, Wenhua West Road, Gao Strict, Weihai 264209, China; (T.R.); (L.Z.)
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jing Gan
- College of Life Sciences, Yantai University, Yantai 264005, China;
| | - Liping Zhou
- Marine College, Shandong University, Wenhua West Road, Gao Strict, Weihai 264209, China; (T.R.); (L.Z.)
| | - Hao Chen
- Marine College, Shandong University, Wenhua West Road, Gao Strict, Weihai 264209, China; (T.R.); (L.Z.)
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Bozdoğan A, Aksakal B, Denktaş C, Salt Y. Prestretching effect and recovery process of polyvinyl alcohol film crosslinked with tartaric acid. J Appl Polym Sci 2020. [DOI: 10.1002/app.49421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Altan Bozdoğan
- Department of PhysicsYıldız Technical University İstanbul Turkey
| | - Baki Aksakal
- Department of PhysicsYıldız Technical University İstanbul Turkey
| | - Cenk Denktaş
- Department of PhysicsYıldız Technical University İstanbul Turkey
| | - Yavuz Salt
- Department of Chemical and Metallurgical EngineeringYıldız Technical University İstanbul Turkey
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Salgado‐Chavarría D, Palacios‐Alquisira J. Poly(vinyl alcohol) Membranes Cross‐linked with Maleic Anhydride and 2,5‐Furandicarboxylic Acid: Conventional Heating and Microwave Irradiation. ChemistrySelect 2020. [DOI: 10.1002/slct.202000564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David Salgado‐Chavarría
- Laboratorio de Fisicoquímica MacromolecularFacultad de QuímicaUniversidad Nacional Autónoma de México Escolar s/n, C.U., Coyoacán 04510, Ciudad de México
| | - Joaquín Palacios‐Alquisira
- Laboratorio de Fisicoquímica MacromolecularFacultad de QuímicaUniversidad Nacional Autónoma de México Escolar s/n, C.U., Coyoacán 04510, Ciudad de México
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