Design carboxymethyl cotton knitted fabrics for wound dressing applications: Solvent effects

Zhao, Jinchao; Tang, Youhong; Liu, Yun; Cui, Li; Xi, Xianxin; Zhang, Nannan; Zhu, Ping

doi:10.1016/j.matdes.2015.07.124

Cited by 22 publications

(12 citation statements)

References 25 publications

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“…A 100% water carboxymethylation solution yields a degree of substitution of just 0.13, whereas a 2:1 ethanol to water solution has been shown to exhibit a degree of substitution of 0.39, three times that of using water alone. 23 Knowing this, the cotton swatches were carboxymethylated in a 2:1 ethanol to water solution to increase the available nucleation sites for subsequent MOF growth. To verify carboxymethylation was successful, IR spectroscopy was performed on both natural cotton and the carboxymethylated material (Figure 3).…”

Section: Resultsmentioning

confidence: 99%

“…Recent advances in the understanding of carboxymethylation suggest that an increased degree of substitution, yielding a greater percentage of carboxylate moieties on the surface of the cotton fibers, can be achieved by adding alcohol to the carboxymethylation solution. A 100% water carboxymethylation solution yields a degree of substitution of just 0.13, whereas a 2:1 ethanol to water solution has been shown to exhibit a degree of substitution of 0.39, three times that of using water alone . Knowing this, the cotton swatches were carboxymethylated in a 2:1 ethanol to water solution to increase the available nucleation sites for subsequent MOF growth.…”

Section: Resultsmentioning

confidence: 99%

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Surface-Anchored Metal–Organic Framework–Cotton Material for Tunable Antibacterial Copper Delivery

Rubin

Neufeld

Reynolds

2018

ACS Appl. Mater. Interfaces

129

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In the present study, a new copper metal-organic framework (MOF)-cotton material was strategically fabricated to exploit its antibacterial properties for postsynthetic modification (PSM) to introduce a free amine to tune the physicochemical properties of the material. A modified methodology for carboxymethylation of natural cotton was utilized to enhance the number of nucleation sites for the MOF growth. Subsequently, MOF Cu(NHBTC) was synthesized into a homogenous surface-supported film via a layer-by-layer dip-coating process. The resultant materials contained uniformly distributed 1 μm × 1 μm octahedral MOF crystals around each carboxymethylated fiber. Importantly, the accessible free amine of the MOF ligand allowed for the PSM of the MOF-cotton surface with valeric anhydride, yielding 23.5 ± 2.2% modified. The Cu ion-releasing performance of the materials was probed under biological conditions per submersion in complex media at 37 °C. Indeed, PSM induces a change in the copper flux of the material over the first 6 h. The materials continue to slowly release Cu ions beyond 24 h tested at a flux of 0.22 ± 0.003 μmol·cm·h with the unmodified MOF-cotton and at 0.25 ± 0.004 μmol·cm·h with the modified MOF-cotton. The antibacterial activity of the material was explored using Escherichia coli by testing the planktonic and attached bacteria under a variety of conditions. MOF-cotton materials elicit antibacterial effects, yielding a 4-log reduction or greater, after 24 h of exposure. Additionally, the MOF-cotton materials inhibit the attachment of bacteria, under both dry and wet conditions. A material of this type would be ideal for clothing, bandages, and other textile applications. As such, this work serves as a precedence toward developing uniform, tunable MOF-composite textile materials that can kill bacteria and prevent the attachment of bacteria to the surface.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Surface-Anchored Metal–Organic Framework–Cotton Material for Tunable Antibacterial Copper Delivery

Rubin

Neufeld

Reynolds

2018

ACS Appl. Mater. Interfaces

129

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“…In ancient research work, Waring et al (2001) [282] fabricated a novel Na-CMC fiber structure that demonstrated its moderate potential for fluid immobilization by gel-blocking, which has inspired further research attempts to develop more advanced fibrous materials using CMC. Similarly, Zhao et al (2015) [283] fabricated carboxymethyl cotton knitted fabrics using various solvents such as water, isopropanol/water, and ethanol/water mixtures at specific aspect ratios. Doh et al (2013) [284] developed a nonwoven composite of CMC and PE/PP bi-component fibers by a wet-laid process that exhibited all of the critical properties used in an advanced wound dressing material.…”

Section: Tissue Engineering Wound Dressingmentioning

confidence: 99%

Recent Developments of Carboxymethyl Cellulose

et al. 2021

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Carboxymethyl cellulose (CMC) is one of the most promising cellulose derivatives. Due to its characteristic surface properties, mechanical strength, tunable hydrophilicity, viscous properties, availability and abundance of raw materials, low-cost synthesis process, and likewise many contrasting aspects, it is now widely used in various advanced application fields, for example, food, paper, textile, and pharmaceutical industries, biomedical engineering, wastewater treatment, energy production, and storage energy production, and storage and so on. Many research articles have been reported on CMC, depending on their sources and application fields. Thus, a comprehensive and well-organized review is in great demand that can provide an up-to-date and in-depth review on CMC. Herein, this review aims to provide compact information of the synthesis to the advanced applications of this material in various fields. Finally, this article covers the insights of future CMC research that could guide researchers working in this prominent field.

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“…The alkaline cellulose samples were then immersed in the chloroacetate solution (30%) neutralized by sodium hydroxide for 15 min. The samples were then cured at 70°C for 3 h, then neutralized with 0.2 M acetic acid and washed three times in isopropanol-water solution (1:4 volume ratio) and finally dried in an oven at 90°C [14].…”

Section: Methodsmentioning

confidence: 99%

Effect of extraction method on properties of feather keratin grafted modified cotton nonwoven fabric for biomedical applications

Khalilipourroodi

Dadashian

Solouk

2021

Journal of Industrial Textiles

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This study offers a new wound dressing by immobilization of amino acid residues on partially carboxymethylated cotton nonwoven fabrics (CM-CN). To improve the absence of capacity to protect the open wound from infection, firstly, a usual cotton nonwoven fabric was chemically modified by utilizing a pad-dry-cure technique including a carboxymethylation procedure. Subsequently, the chicken feather wastes as a natural source were used for the cationization of CM-CN by the same method. Keratin successfully was extracted from chicken feathers using both chemical and enzymatic processes. Physicochemical and biological properties of the prepared samples were evaluated by FTIR, SEM, mechanical properties such as tensile, bending test and wrinkle recovery, biodegradation, permeability (air and water vapor), and MTT assay for cell viability and proliferation. The tensile strength increased to 200%, the air permeability almost doubled, and the greatest cell growth was observed for modified samples. According to the obtained results, enzymatic extraction was influential and the samples coated with enzyme-extracted keratin showed enhanced properties suitable for wound dressing applications.

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Design carboxymethyl cotton knitted fabrics for wound dressing applications: Solvent effects

Cited by 22 publications

References 25 publications

Surface-Anchored Metal–Organic Framework–Cotton Material for Tunable Antibacterial Copper Delivery

Surface-Anchored Metal–Organic Framework–Cotton Material for Tunable Antibacterial Copper Delivery

Recent Developments of Carboxymethyl Cellulose

Effect of extraction method on properties of feather keratin grafted modified cotton nonwoven fabric for biomedical applications

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