Superabsorbent cellulose-based hydrogels cross-liked with borax

Tanpichai, Supachok; Phoothong, Farin; Boonmahitthisud, Anyaporn

doi:10.1038/s41598-022-12688-2

Cited by 50 publications

(34 citation statements)

References 71 publications

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“…This resulted in an enhanced water absorption capacity. Additionally, the reaction between borax and DCNFs induced an increased number of functional hydroxyl groups, such as the monodical-borax complex, which interacted with water, further contributing to the increased water absorption capacity . The FAW slope was observed to decrease at the beginning of the test for PAM/DCNF4 from 0.184 to 0.11 for pH from 3 to 10, indicating a lower rate of water absorption.…”

Section: Results and Discussionmentioning

confidence: 97%

“…Additionally, the reaction between borax and DCNFs induced an increased number of functional hydroxyl groups, such as the monodical-borax complex, which interacted with water, further contributing to the increased water absorption capacity. 45 The FAW slope was observed to decrease at the beginning of the test for PAM/DCNF4 from 0.184 to 0.11 for pH from 3 to 10, indicating a lower rate of water absorption. After that, the water absorption increased dramatically with increasing pH due to the carboxylate groups of the hydrogel being ionized to COO − ions, and the hydrogel network chain repulsion increased, causing higher water uptake.…”

Section: Water Absorption Propertiesmentioning

confidence: 90%

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Highly Flexible, Self-Bonding, Self-Healing, and Conductive Soft Pressure Sensors Based on Dicarboxylic Cellulose Nanofiber Hydrogels

Abou-Zeid

Shayan

et al. 2023

ACS Appl. Polym. Mater.

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Conductive hydrogels have gained a great deal of interest in the flexible electronics industry because of their remarkable inherent properties. However, a significant challenge remains for balancing hydrogel's conductivity, self-healing, and strength properties. Herein, double network ionic hydrogels were fabricated by concurrently introducing borax into dicarboxylic cellulose nanofiber (DCNFs) and polyacrylamide (PAM) hydrogels. The incorporation of borax provided a superabsorbent feature to the PAM/DCNF hydrogels (without borax) with the equilibrium water absorption rate increased from 552 to 1800% after 42 h. The compressive strength of the prepared hydrogel was 935 kPa compared to 132 kPa for the PAM hydrogel, with high cycling stability (stable after 1000 compression cycles with 50% strain). The hydrogel pressure sensor had a very sensitive response (gauge factor = 1.36) in the strain range from 10 to 80%, which made it possible to detect mechanical motion accurately and reliably. The developed hydrogels with high-performance, environmentally friendly properties are promising for use in future artificial skin and human−machine interface applications.

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Section: Results and Discussionmentioning

confidence: 97%

Section: Water Absorption Propertiesmentioning

confidence: 90%

Highly Flexible, Self-Bonding, Self-Healing, and Conductive Soft Pressure Sensors Based on Dicarboxylic Cellulose Nanofiber Hydrogels

Abou-Zeid

Shayan

et al. 2023

ACS Appl. Polym. Mater.

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“…Thus, the researchers believe that the outcome of this work could be a turning point in the synthesis of bacterial cellulose in larger amounts at a relatively lower cost. Nanocellulose was extracted from water hyacinth using acid hydrolysis [125]. The extracted nanocellulose was treated with NaOH and urea to form hydrogels.…”

Section: Current Reports On Nanocellulose and Their Applicationsmentioning

confidence: 99%

Nanocellulose: A Fundamental Material for Science and Technology Applications

et al. 2022

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Recently, considerable interest has been focused on developing greener and biodegradable materials due to growing environmental concerns. Owing to their low cost, biodegradability, and good mechanical properties, plant fibers have substituted synthetic fibers in the preparation of composites. However, the poor interfacial adhesion due to the hydrophilic nature and high-water absorption limits the use of plant fibers as a reinforcing agent in polymer matrices. The hydrophilic nature of the plant fibers can be overcome by chemical treatments. Cellulose the most abundant natural polymer obtained from sources such as plants, wood, and bacteria has gained wider attention these days. Different methods, such as mechanical, chemical, and chemical treatments in combination with mechanical treatments, have been adopted by researchers for the extraction of cellulose from plants, bacteria, algae, etc. Cellulose nanocrystals (CNC), cellulose nanofibrils (CNF), and microcrystalline cellulose (MCC) have been extracted and used for different applications such as food packaging, water purification, drug delivery, and in composites. In this review, updated information on the methods of isolation of nanocellulose, classification, characterization, and application of nanocellulose has been highlighted. The characteristics and the current status of cellulose-based fiber-reinforced polymer composites in the industry have also been discussed in detail.

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“…The use of hydrogels, a 3D cross-linked hydrophilic polymeric network, as different types of wound dressing materials is due to their excellent biocompatible properties as well as their ability to absorb and retain hundreds of times their weight in water by maintaining their structure [ 14 , 15 ]. Accordingly, a perfect wound dressing is deemed to be one that meets the following requirements such as biodegradability, biocompatibility, antimicrobial, super absorbency and, last but not least, the avoidance of scarring [ 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Aloe vera Based Biocompatible Hydrogel for Use in Dermatological Applications

Chelu

Musuc

Aricov

et al. 2023

IJMS

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The present research aims to describe a new methodology to obtain biocompatible hydrogels based on Aloe vera used for wound healing applications. The properties of two hydrogels (differing in Aloe vera concentration, AV5 and AV10) prepared by an all-green synthesis method from raw, natural, renewable and bioavailable materials such as salicylic acid, allantoin and xanthan gum were investigated. The morphology of the Aloe vera based hydrogel biomaterials was studied by SEM analysis. The rheological properties of the hydrogels, as well as their cell viability, biocompatibility and cytotoxicity, were determined. The antibacterial activity of Aloe vera based hydrogels was evaluated both on Gram-positive, Staphylococcus aureus and on Gram-negative, Pseudomonas aeruginosa strains. The obtained novel green Aloe vera based hydrogels showed good antibacterial properties. In vitro scratch assay demonstrated the capacity of both AV5 and AV10 hydrogels to accelerate cell proliferation and migration and induce closure of a wounded area. A corroboration of all morphological, rheological, cytocompatibility and cell viability results indicates that this Aloe vera based hydrogel may be suitable for wound healing applications.

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Superabsorbent cellulose-based hydrogels cross-liked with borax

Cited by 50 publications

References 71 publications

Highly Flexible, Self-Bonding, Self-Healing, and Conductive Soft Pressure Sensors Based on Dicarboxylic Cellulose Nanofiber Hydrogels

Highly Flexible, Self-Bonding, Self-Healing, and Conductive Soft Pressure Sensors Based on Dicarboxylic Cellulose Nanofiber Hydrogels

Nanocellulose: A Fundamental Material for Science and Technology Applications

Antibacterial Aloe vera Based Biocompatible Hydrogel for Use in Dermatological Applications

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