Preparation of hydrogel with self-healing properties based on poly(vinyl alcohol)/corn starch/zeolite/cellulose nanocrystals for wound dressing applications

Author(s):  
Poonsub Threepopnatkul ◽  
Jenpob Sokjorhor ◽  
Pongpoom Homchan ◽  
Wongsakorn Khammee
2021 ◽  
Author(s):  
Luong Ngoc Diem ◽  
Indranil Banerjee ◽  
Kunal Pal ◽  
Udomlak Sukatta ◽  
Prapassorn Rugthaworn ◽  
...  

Abstract Biomaterial-based wound dressings were fabricated using cellulose nanocrystals (CNCs) as nano-filler in a polymeric mixture of poly(vinyl alcohol) (PVA) and gum tragacanth (GT) via solution casting. Physical and chemical characteristics of neat PVA, PVA/GT and PVA/GT/CNC films with varying concentrations (2 to 10%) of CNCs were observed. Initial analysis of CNCs showed nanosized particles of 104 nm length and 7 nm width. Scanning electron microscopy (SEM) illustrated cluster formations of CNCs in the polymer matrix. Fourier transform infrared (FTIR) spectrometry was used to confirm the chemical functional groups in the material. The presence of GT and CNCs in the polymer matrix improved water uptake and prolonged stability for 7 days. The CNCs enhanced tensile strength from 54.63 MPa to 80.39MPa. Biological properties of PVA/GT/CNC films were analyzed. Results showed that the dressing material was nontoxic to mouse fibroblast cells L929, while film loaded with betel leaf extract exhibited excellent antibacterial activities against Staphylococcus aureus DMST 8840 and Pseudomonas aeruginosa TISTR 781, indicating that composite film was suitable for application in wound dressing.


Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2104
Author(s):  
Sibusiso Alven ◽  
Blessing Atim Aderibigbe

The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, promote tissue regeneration, etc. Formulation of these wound dressings via electrospinning technique is cost-effective, useful for uniform and continuous nanofibers with controllable pore structure, high porosity, excellent swelling capacity, good gaseous exchange, excellent cellular adhesion, and show a good capability to provide moisture and warmth environment for the accelerated wound healing process. Based on the above-mentioned outstanding properties of nanofibers and the unique properties of hybrid wound dressings prepared from poly (vinyl alcohol) and poly (ε-caprolactone), this review reports the in vitro and in vivo outcomes of the reported hybrid nanofibers.


2021 ◽  
Author(s):  
Aranee Pleng Teepakakorn ◽  
Makoto Ogawa

Water-induced self-healing materials were prepared by the hybridization of a water-soluble polymer, poly(vinyl alcohol), with a smectite clay by mixing in an aqueous media and subsequent casting. Without using chemical...


Soft Matter ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 2373 ◽  
Author(s):  
Tiffany Abitbol ◽  
Timothy Johnstone ◽  
Thomas M. Quinn ◽  
Derek G. Gray

Soft Matter ◽  
2022 ◽  
Author(s):  
Xiangqian Gao ◽  
Tiantian Deng ◽  
Xindi Huang ◽  
Mengmeng Yu ◽  
Danyang Li ◽  
...  

A new composite hydrogels with excellent self-healing properties was prepared by combining poly(vinyl alcohol) (PVA) and boron nitride nanofibers (BNNFs) via a facile one-pot assembly method. One-dimensional porous BNNFs with...


2021 ◽  
Vol 398 (1) ◽  
pp. 2000194
Author(s):  
Vítor Corrêa da Costa ◽  
Fernando Gomes de Souza Junior ◽  
Luana de Castro Sousa ◽  
Kaushik Pal ◽  
Romildo Dias Tolêdo Filho

2013 ◽  
Vol 24 (10) ◽  
pp. 2479-2487 ◽  
Author(s):  
Takayuki Takei ◽  
Hideki Nakahara ◽  
Sadao Tanaka ◽  
Hiroto Nishimata ◽  
Masahiro Yoshida ◽  
...  

2018 ◽  
Vol 19 (2) ◽  
pp. 626-632 ◽  
Author(s):  
Yong-Guang Jia ◽  
Jiahong Jin ◽  
Sa Liu ◽  
Li Ren ◽  
Juntao Luo ◽  
...  

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