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    Π‘ΠΈΠ½Ρ‚Π΅Π· ΠΈ функционализация нанокристаллов Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ ΠΈΠ· Ρ‡Π°ΠΉΠ½ΠΎΠ³ΠΎ Π³Ρ€ΠΈΠ±Π° для Ρ€Π°Π½Π΅Π²Ρ‹Ρ… повязок

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    In this study, bacterial cellulose nanocrystals and aldehyde functionalized bacterial cellulose nanocrystals were synthesized from kombucha tea. Bacterial cellulose derived from kombucha tea is a biopolymer synthesized by a symbiotic consortium of bacteria and yeast (SCOBY). The main goal of this work was the synthesis and chemical modification of cellulose nanocrystals from bacterial cellulose isolated from kombucha tea. The hydrolysis of bacterial cellulose using sulfuric acid resulted in bacterial cellulose nanocrystals. Aldehyde modified bacterial cellulose nanocrystals were synthesized using periodate oxidation in order to acquire new properties such as a non-toxic crosslinking agent with other biopolymers. The bacterial cellulose nanocrystals and dialdehyde bacterial cellulose nanocrystals were characterized by FT-IR spectroscopy, X‑ray diffraction, thermal analysis and particle size distribution. The synthesized bacterial cellulose nanocrystals and the dialdehyde derivative are excellent materials that could be used as potent wound dressing materials and scaffolds for tissue engineering applicationsΠ’ этом исслСдовании нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ ΠΈ нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹, Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄Π½Ρ‹ΠΌΠΈ Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ, Π±Ρ‹Π»ΠΈ синтСзированы ΠΈΠ· Ρ‡Π°ΠΉΠ½ΠΎΠ³ΠΎ Π³Ρ€ΠΈΠ±Π°. Π‘Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½Π°Ρ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Π°, получСнная ΠΈΠ· Ρ‡Π°ΠΉΠ½ΠΎΠ³ΠΎ Π³Ρ€ΠΈΠ±Π°, прСдставляСт собой Π±ΠΈΠΎΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€, синтСзированный симбиотичСским консорциумом Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ ΠΈ Π΄Ρ€ΠΎΠΆΠΆΠ΅ΠΉ (SCOBY). Основной Ρ†Π΅Π»ΡŒΡŽ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π» синтСз ΠΈ химичСская модификация нанокристаллов Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ ΠΈΠ· Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹, Π²Ρ‹Π΄Π΅Π»Π΅Π½Π½ΠΎΠΉ ΠΈΠ· Ρ‡Π°ΠΉΠ½ΠΎΠ³ΠΎ Π³Ρ€ΠΈΠ±Π°. Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ Π³ΠΈΠ΄Ρ€ΠΎΠ»ΠΈΠ·Π° Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ сСрной кислотой Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹. Нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹, ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄Π½Ρ‹ΠΌΠΈ Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ, Π±Ρ‹Π»ΠΈ синтСзированы с использованиСм ΠΏΠ΅Ρ€ΠΈΠΉΠΎΠ΄Π°Ρ‚Π° для приобрСтСния Π½ΠΎΠ²Ρ‹Ρ… свойств, Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ нСтоксичный ΡΡˆΠΈΠ²Π°ΡŽΡ‰ΠΈΠΉ Π°Π³Π΅Π½Ρ‚ с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ Π±ΠΈΠΎΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π°ΠΌΠΈ. Нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ ΠΈ нанокристаллы диальдСгидной Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ Π±Ρ‹Π»ΠΈ ΠΎΡ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Ρ‹ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ИК-Π€ΡƒΡ€ΡŒΠ΅-спСктроскопии, рСнтгСновской Π΄ΠΈΡ„Ρ€Π°ΠΊΡ†ΠΈΠΈ, тСрмичСского Π°Π½Π°Π»ΠΈΠ·Π°, ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ распрСдСлСния частиц ΠΏΠΎ Ρ€Π°Π·ΠΌΠ΅Ρ€Π°ΠΌ. Π‘ΠΈΠ½Ρ‚Π΅Π·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ нанокристаллы Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ†Π΅Π»Π»ΡŽΠ»ΠΎΠ·Ρ‹ ΠΈ Π΅Π΅ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ΅ Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄Π½Ρ‹ΠΌΠΈ Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΠΎΠ΅ ΡΠ²Π»ΡΡŽΡ‚ΡΡ прСвосходными ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠΆΠ½ΠΎ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ Π² качСствС эффСктивных пСрСвязочных ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² для Ρ€Π°Π½ ΠΈ каркасов для ΠΏΡ€ΠΈΠ»ΠΎΠΆΠ΅Π½ΠΈΠΉ Ρ‚ΠΊΠ°Π½Π΅Π²ΠΎΠΉ ΠΈΠ½ΠΆΠ΅Π½Π΅Ρ€ΠΈ

    A Review on Chitosan and Cellulose Hydrogels for Wound Dressings

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    Wound management remains a challenging issue around the world, although a lot of wound dressing materials have been produced for the treatment of chronic and acute wounds. Wound healing is a highly dynamic and complex regulatory process that involves four principal integrated phases, including hemostasis, inflammation, proliferation, and remodeling. Chronic non-healing wounds are wounds that heal significantly more slowly, fail to progress to all the phases of the normal wound healing process, and are usually stalled at the inflammatory phase. These wounds cause a lot of challenges to patients, such as severe emotional and physical stress and generate a considerable financial burden on patients and the general public healthcare system. It has been reported that about 1–2% of the global population suffers from chronic non-healing wounds during their lifetime in developed nations. Traditional wound dressings are dry, and therefore cannot provide moist environment for wound healing and do not possess antibacterial properties. Wound dressings that are currently used consist of bandages, films, foams, patches and hydrogels. Currently, hydrogels are gaining much attention as a result of their water-holding capacity, providing a moist wound-healing milieu. Chitosan is a biopolymer that has gained a lot of attention recently in the pharmaceutical industry due to its unique chemical and antibacterial nature. However, with its poor mechanical properties, chitosan is incorporated with other biopolymers, such as the cellulose of desirable biocompatibility, at the same time having the improved mechanical and physical properties of the hydrogels. This review focuses on the study of biopolymers, such as cellulose and chitosan hydrogels, for wound treatment
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