Combination of oxidative and hydrolytic functions of nitric acid in production of enterosorbents based on carboxylated microcrystalline cellulose

Gert, E. V.; Torgashov, V. I.; Zubets, O. V.; Капуцкий, Ф. Н.

doi:10.1134/s1070427206110309

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…in different combinations and structural forms, 1,2 as well as different conventional chemical compounds, such as inorganic salts, phenols, formaldehyde derivatives, amines, etc., into/onto the fibrous /textile substrate. 3–5 Iodine is one of these chemical compounds, showing not only great antimicrobial, but also antioxidative properties. Based on the available evidence from clinical trials, iodine is an effective antiseptic agent showing neither the purported harmful effects nor a delay in the wound-healing process, particularly in chronic and burn wounds and other infections.…”

mentioning

confidence: 99%

Medical textiles based on viscose rayon fabrics coated with chitosan-encapsulated iodine: antibacterial and antioxidant properties

Zemljič

Peršin

Šauperl

et al. 2017

Textile Research Journal

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Adsorption of chitosan nanoparticles with embedded iodine was implemented onto pristine and oxidized cellulose viscose fabrics in order to introduce antimicrobial and antioxidative functionalization. The adsorption capacity, charging behavior and electrokinetic response of differently functionalized viscose at different pH values were analyzed by determining their zeta potential. Desorption studies, besides zeta potential measurements, were supported by polyelectrolyte titration. Finally, the antimicrobial properties were evaluated by the standard ASTM E2149 method, whilst antioxidative properties were determined by 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical cation decolorization assay. It was found that the oxidation of viscose fabrics further modified by chitosan–iodine nanoparticles dispersion was a very promising functionalization process, providing good coating stability along with antimicrobial and antioxidant properties.

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mentioning

confidence: 99%

Medical textiles based on viscose rayon fabrics coated with chitosan-encapsulated iodine: antibacterial and antioxidant properties

Zemljič

Peršin

Šauperl

et al. 2017

Textile Research Journal

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“…45 Conversion of the acidic form of OC into salt forms, e.g., sodium, is accompanied by strong hydrophylization of microcrystals and formation of water-soluble PHARMACEUTICAL AND MEDICAL APPLICATIONS OF OXYCELLULOSE fraction from a part of oxidized macromolecules of the surface area, which facilitates preparation of stable thixotropic gels. 46 In general, OC exhibits a poor chemical stability manifesting itself by yellowing and loss of strength when OC is presented in fiber or tissue form (e.g., Surgicel TM , Oxycel TM ). 47−49…”

Section: Physical and Chemical Properties Of Oxidized Cellulosementioning

confidence: 99%

Oxycellulose: Significant characteristics in relation to its pharmaceutical and medical applications

Bajerová¹,

Krejčová²,

Rabišková³

et al. 2009

Adv Polym Technol

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As a biomaterial, cellulose can be converted into a wide range of derivatives with desired properties for a variety of medical, biomedical, and pharmaceutical applications. The oxidation of cellulose yields oxidized cellulose (OC, oxycellulose, 6-carboxycellulose). OC represents an important class of biocompatible and bioresorbable polymers. In vivo bioabsorption of OC occurs via chemical depolymerization and enzymatic hydrolysis. Despite the fact OC is well established as a hemostatic agent and is widely used in a clinical practice, it still attracts a great interest and its new applications, especially pharmaceutical, are investigated. The present review is focused on characterization of OC's physical and chemical properties. Its synthesis and mechanisms involved in its in vivo and in vitro biodegradation are discussed. Medical and biomedical applications of OC are summarized, and especially its hemostatic, enterosorbent, and wound-healing properties are described. In addition to these applications, OC could be used as a pharmaceutical excipient in solid (e.g.

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“…In fact, extensive work is being put into improving substances and procedures that could provide safe and adequate protection against various microorganisms. For example, chemical materials such as phenols, nitro compounds, and formaldehyde derivatives, have been extensively used in the manufacturing of antibacterial medical textiles [1][2][3][4]. However, most of these compounds have serious drawbacks in terms of toxicity and poor biodegradability, which make their use quite limited.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and UV Protection Properties of Modified Cotton Fabric Using a Curcumin/TiO2 Nanocomposite for Medical Textile Applications

et al. 2021

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Medical textiles are one of the most rapidly growing parts of the technical textiles sector in the textile industry. This work aims to investigate the medical applications of a curcumin/TiO2 nanocomposite fabricated on the surface of cotton fabric. The cotton fabric was pretreated with three crosslinking agents, namely citric acid, 3-Chloro-2-hydroxypropyl trimethyl ammonium chloride (Quat 188) and 3-glycidyloxypropyltrimethoxysilane (GPTMS), by applying the nanocomposite to the modified cotton fabric using the pad-dry-cure method. The chemistry and morphology of the modified fabrics were examined by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. In addition, the chemical mechanism for the nanocomposite-modified fabric was reported. UV protection (UPF) and antibacterial properties against Gram-positive S. aureus and Gram-negative E. coli bacterial strains were investigated. The durability of the fabrics to 20 washing cycles was also examined. Results demonstrated that the nanocomposite-modified cotton fabric exhibited superior antibacterial activity against Gram-negative bacteria than Gram-positive bacteria and excellent UV protection properties. Moreover, a good durability was obtained, which was possibly due to the effect of the crosslinker used. Among the three pre-modifications of the cotton fabric, Quat 188 modified fabric revealed the highest antibacterial activity compared with citric acid or GPTMS modified fabrics. This outcome suggested that the curcumin/TiO2 nanocomposite Quat 188-modified cotton fabric could be used as a biomedical textile due to its antibacterial properties.

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Combination of oxidative and hydrolytic functions of nitric acid in production of enterosorbents based on carboxylated microcrystalline cellulose

Cited by 11 publications

References 2 publications

Medical textiles based on viscose rayon fabrics coated with chitosan-encapsulated iodine: antibacterial and antioxidant properties

Medical textiles based on viscose rayon fabrics coated with chitosan-encapsulated iodine: antibacterial and antioxidant properties

Oxycellulose: Significant characteristics in relation to its pharmaceutical and medical applications

Antibacterial and UV Protection Properties of Modified Cotton Fabric Using a Curcumin/TiO2 Nanocomposite for Medical Textile Applications

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