Antibacterial and antiviral chitosan oligosaccharide modified cellulosic fibers with durability against washing and long-acting activity

Lan, Jinxin; Chen, Jiazhen; Zhu, Ruiqi; Lin, Changmei; Ma, Xiaojuan; Cao, Shilin

doi:10.1016/j.ijbiomac.2023.123587

Cited by 11 publications

(2 citation statements)

References 67 publications

(76 reference statements)

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“…Nowadays, it has been widely exploited in traditional fields and advanced applications [17][18][19][20][21]. Different forms derived from cellulose such as film [22,23], particle [6,24,25], microfibrillated particle [26], sheet [27], modified fiber [28] have been performed. Nevertheless, the hydrophilic part of cellulose greatly limits its use in stabilizing texture which requires other hydrophobic molecules for balancing structure.…”

Section: Cellulose-silk Fibroin Composite Particles For Hydrophilic D...mentioning

confidence: 99%

Cellulose-Silk Fibroin Composite Particles for Hydrophilic Drug-Controlled Release System: Preparation and Characterization

Srihanam,

Baimark,

Thonpho

et al. 2023

ajc

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The objective of this study was to investigate the dissolution of cellulose (C) powder as a potential material for particle formation when combined with a silk fibroin (SF) solution. Each polymer solution as well as a mixture of cellulose and silk fibroin in different ratios were prepared into particles using the solvent emulsion-diffusion method. The particle morphology was characterized by scanning electron microscopy (SEM) and by attenuated reflection Fourier-transformed infrared spectroscopy (ATR-FTIR) and thermogravimetric analyzer (TGA) for the C-SF molecular interaction and thermal properties, respectively. The results showed that the cellulose particles appeared as separate fibers and loosely bound together, while silk fibroin particles were spherical in shape with dense texture and smooth surface. The C/SF mixed particles with different ratios could be formed into spherical particles and a ratio of 1:3 has the most spherical and solid. The ATR-FTIR results indicated the absorption spectra of the main functional groups both cellulose and silk fibroin. Blue dextran helped to enhance the temperature of the maximum decomposition rate (Td,max) of the particles via hydrogen bond interaction between the blue dextran and polymers. A burst release of blue dextran was observed in the first 12 h due to the swelling of particle surfaces and the slowest release found in the silk fibroin particles. The C/SF composite showed different blue dextran- eleased profiles and the particle with a high content of silk fibroin-released blue dextran in slowly rate. The results of this work can be used as a basis for applying C/SF composite particles in a hydrophilic drug release-controlled system.

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Section: Cellulose-silk Fibroin Composite Particles For Hydrophilic D...mentioning

confidence: 99%

Cellulose-Silk Fibroin Composite Particles for Hydrophilic Drug-Controlled Release System: Preparation and Characterization

Srihanam,

Baimark,

Thonpho

et al. 2023

ajc

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“…Thus, the synthesis of BC-based antibacterial wound healing can be achieved by antibiotic impregnations, nanoparticles, or polymers that have antimicrobial activity. [9][10][11] Metal nanoparticles have attracted great interest and are typically applied in various industrial sectors because of their unique optical, catalytic, and biological features. [12][13][14] Currently, microbially synthesized nanoparticles have been recognized as a cost-effective and environmentally friendly method and are suitable for large-scale production.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel Bacterial Cellulose Based Silver-Metal Organic Frameworks (BC@Ag-MOF) as Antibacterial Wound Healing

Puspitasari,

Arief,

Ismadji

et al. 2023

Fine Chemical Engineering

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Bacterial Cellulose (BC) is a polymer derived from the bacterium Komagataeibacter xylinus with great potential for biomedical applications due to its high biocompatibility and biodegradability. In addition, the polymer is naturally biosynthesized by bacteria as hydrogels which can be used as optimal substrates for wound healing. However, the drawback of BC is the absence of antibacterial properties. Nowadays, some infections become more prevalent and harder to treat because of antimicrobial resistance, therefore, it is necessary to develop a strategy for modifying BC as wound healing that provides protection against bacterial contamination. In this work, silver-based Metal Organic Frameworks (MOFs) were immobilized into Bacterial Cellulose (BC). MOFs are porous coordination materials consisting of metal ions and multidentate organic ligands that have the potential as a matrix for metal ions due to their ability to gradually release metal ions. The structure and morphology of BC@Ag-MOF were successfully confirmed by Fourier-Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscope (SEM). Evidently, BC@Ag-MOF exhibited a higher silver content (63.19%) than BC@Ag without immobilization into MOF (48.46%). Therefore, it indicated that MOF has large pores for enhancing the capacity for silver ion absorption in BC. The modified BC has never been reported and achieved the highest antibacterial activity of 99.99% against Gram-negative bacteria Escherichia coli. Moreover, BC@Ag-MOF has a higher antibacterial efficiency of 97% compared to BC@Ag without matrix. This study expands the potential application of BC modification in the field of biological antibacterial. has never been reported and achieved the highest antibacterial activity of 99.99% against Gram-negative bacteria Escherichia coli. Moreover, BC@Ag-MOF has a higher antibacterial efficiency of 97% compared to BC@Ag without matrix. This study expands the potential application of BC modification in the field of biological antibacterial.

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Production and characterization of cellulose acetate using olive tree pruning biomass as feedstock

Rodríguez‐Liébana,

Robles‐Solano,

Jurado‐Contreras

et al. 2024

Biofuels Bioprod Bioref

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Olive tree pruning (OTP) is one of the most abundant sources of biomass waste in the Mediterranean basin. This is especially relevant in southern Spain where olive oil production represents a large part of the economy. Olive tree prunings are mostly either burned or are spread in olive orchards as an organic amendment, or used for heat generation on a domestic scale. However, the lignocellulosic composition of OTP makes it a potential source of biopolymers, thus providing an excellent economic alternative for the olive oil sector. In this work, pretreated OTP fibers were subjected to an optimized alkaline treatment followed by a single‐step bleaching reaction with H2O2. Afterwards, the cellulose pulp was transformed chemically to obtain cellulose acetate. Noncellulosic components were removed effectively from OTP, thus obtaining a pulp highly purified in cellulose with 71% crystallinity and 355 °C maximum degradation temperature. Nevertheless, a very large amount of cellulose (ca. 50%) was eliminated throughout the process, especially during acid pretreatment, which was responsible for 38% solubilization. A similar level of acetylation and degree of substitution was obtained by using acetylation times in the range of 1 to 6 h. No large differences were observed in the infrared spectra and X‐ray diffractograms of the synthesized acetates. However, their thermal stability varied significantly with reaction time, evolving from a multistep degradation pattern to a single and sharp peak between 300 and 400 °C with increasing time. Thermogravimetric curves revealed that at least 5 h (preferably 6 h) were needed to obtain cellulose acetate from OTP with adequate thermal stability for further processing.

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Antibacterial and antiviral chitosan oligosaccharide modified cellulosic fibers with durability against washing and long-acting activity

Cited by 11 publications

References 67 publications

Cellulose-Silk Fibroin Composite Particles for Hydrophilic Drug-Controlled Release System: Preparation and Characterization

Cellulose-Silk Fibroin Composite Particles for Hydrophilic Drug-Controlled Release System: Preparation and Characterization

Synthesis of Novel Bacterial Cellulose Based Silver-Metal Organic Frameworks (BC@Ag-MOF) as Antibacterial Wound Healing

Production and characterization of cellulose acetate using olive tree pruning biomass as feedstock

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