Use of gamma irradiation technology for modification of bacterial cellulose nanocrystals/chitosan nanocomposite film

Salari, Mahdieh; Khiabani, Mahmoud Sowti; Mokarram, Reza Rezaei; Ghanbarzadeh, Babak; Kafil, Hossein Samadi

doi:10.1016/j.carbpol.2020.117144

Cited by 39 publications

(18 citation statements)

References 35 publications

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“…The chitosan-based films possess good permeability, a large surface area, and unique antibacterial properties, thus making them a potential alternative to artificial skin and an important material for wound dressings ( Vivcharenko et al, 2020 ). The surface hydrophobicity, permeability, and sensitivity of gamma ray–irradiated chitosan films can be increased without significant changes in the original chemical structure ( Salari et al, 2021 ). Introducing montmorillonite-copper chloride into chitosan films can increase their tensile strength and elongation at break and also confer higher antibacterial activity against foodborne pathogens, further highlighting their use as a wound dressing to combat infections ( Nouri et al, 2018 ).…”

Section: Drug Carriers Prepared Using Chitosan and Its Derivativesmentioning

confidence: 99%

Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases

Xia

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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Chitosan and its derivatives are bioactive molecules that have recently been used in various fields, especially in the medical field. The antibacterial, antitumor, and immunomodulatory properties of chitosan have been extensively studied. Chitosan can be used as a drug-delivery carrier in the form of hydrogels, sponges, microspheres, nanoparticles, and thin films to treat diseases, especially those of the skin and soft tissue such as injuries and lesions of the skin, muscles, blood vessels, and nerves. Chitosan can prevent and also treat soft tissue diseases by exerting diverse biological effects such as antibacterial, antitumor, antioxidant, and tissue regeneration effects. Owing to its antitumor properties, chitosan can be used as a targeted therapy to treat soft tissue tumors. Moreover, owing to its antibacterial and antioxidant properties, chitosan can be used in the prevention and treatment of soft tissue infections. Chitosan can stop the bleeding of open wounds by promoting platelet agglutination. It can also promote the regeneration of soft tissues such as the skin, muscles, and nerves. Drug-delivery carriers containing chitosan can be used as wound dressings to promote wound healing. This review summarizes the structure and biological characteristics of chitosan and its derivatives. The recent breakthroughs and future trends of chitosan and its derivatives in therapeutic effects and drug delivery functions including anti-infection, promotion of wound healing, tissue regeneration and anticancer on soft tissue diseases are elaborated.

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Section: Drug Carriers Prepared Using Chitosan and Its Derivativesmentioning

confidence: 99%

Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases

Xia

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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“…Gamma radiation also has the capability to penetrate the materials, so it is widely used in polymer sterilization and characteristics modification (Benyathiar et al 2021 ). It can cause crosslinking or degradation of the polymer chain (Rogers 2012 ), thereby altering some chemical and physical properties of BC (Salari et al 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…However, the chemical and physical properties of polymers can alter as a result from exposure to gamma irradiation which cause crosslinking or degradation of the polymer chain and the same may occur in BC (Rogers, 2012 ; Salari et al 2021 ). FTIR spectra of BCNF after irradiation process showed slight shifts of the peaks, implying the same chemical structure from different culture media.…”

Section: Discussionmentioning

confidence: 99%

Biosynthesis of bacterial cellulose nanofibrils in black tea media by a symbiotic culture of bacteria and yeast isolated from commercial kombucha beverage

Hamed

Maghrawy

Kareem

2022

World J Microbiol Biotechnol

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Bacterial cellulose has drawn the attention for its unique properties and applications including; medicine, pharmacy, food, agricultural, textile and electronics. The present study focused on the production of bacterial cellulose nanofibrils (BCNF) from black tea as cost effective alternative medium in addition to study the effect of gamma radiation on BCNF properties. A symbiotic culture of bacteria and yeast (SCOBY) were isolated from commercial Kombucha beverage and were identified as Acinetobacterlowffii and Candida krusei, respectively. The symbiotic culture was used for production of BCNF on Hestrin-Schramm (HS), black tea (BT) and modified BT media. BCNF was purified (0.5 N NaOH) and quantified by dry weight, yield and productivity determination. Characterization and effect of gamma radiation (5–25 kGy) on BCNF were studied using Scanning Electron Microscope (SEM), Fourier transform infrared (FTIR) and X-Ray Diffraction (XRD). The highest BCNF production was achieved using BT medium with 0.2% tea and 6.0% commercial sugar (with dry weight 4.77–4.61 g/l and productivity 68.14% and 65.85%, respectively). Supplementation of BT medium with 1% ethanol, 0.27% Na2HPO4 and 0.5% yeast extract individually, enhanced the BCNF production (7.85, 6.84 and 5.73 g/l), respectively. FTIR spectrum of BCNF from sugared water (SW), HS and BT showed similar structure with high purity. As a conclusion, gamma irradiation has no effect on the BCNF structure while showed different effects on its crystallinity index and size with the different doses. The changes in CrI were ranged between (17 and 23.5%), while the crystallinity size (Cs) was affected by gamma irradiation in a positive relationship where the crystalline size was decreased (33%) by exposure to 5 kGy then increased by increasing the dose of radiation reaching 25.7% at 25 kGy. SEM graphs showed the morphology of microbial culture and its symbiotic relationship in addition to the ultrafine structure of non-irradiated and irradiated BCNF. Graphical abstract

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“…Gamma radiation also has the capability to penetrate the materials, so it is widely used in polymer sterilization and characteristics modi cation (Benyathiar et al 2021). It can cause crosslinking or degradation of the polymer chain (Rogers 2012), thereby altering some chemical and physical properties of BC (Salari et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Biosynthesis of bacterial cellulose nanofibrils in black tea media by a symbiotic culture of bacteria and yeast isolated from commercial kombucha beverage

Hamed

Maghrawy

Kareem

2022

Preprint

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Bacterial cellulose has drawn the attention for its unique properties and applications including; medicine, pharmacy, food, agricultural, textile and electronics. The present study focused on the production of bacterial cellulose nanofibrils (BCNF) from black tea as cost effective alternative medium in addition to study the effect of gamma radiation on BCNF properties. A symbiotic culture of bacteria and yeast (SCOBY) were isolated from commercial Kombucha beverage and used for production of BCNF on Hestrin- Schramm (HS), black tea (BT) and modified BT media. BCNF was purified (0.5 N NaOH) and quantified by dry weight, yield and productivity determination. Characterization and effect of gamma radiation (5–25 kGy) on BCNF were studied using Scanning Electron Microscope (SEM), Fourier transform infrared (FTIR) and X-Ray Diffraction (XRD). Bacterial and yeast isolates were identified as Acinetobacter lowffii and Candida krusei (synonymous: Pichia kudriavzevii), respectively. The highest BCNF production was achieved using BT medium with 0.2 and 6.0% tea and sucrose concentrations (4.77 and 4.61g/l, respectively). Supplementation of BT medium with 1% ethanol,0.27% Na2HPO4 and 0.5% yeast extract individually, enhanced the BCNF production (7.85, 6.84 and 5.73 g/l), respectively. FTIR and XRD spectrum of BCNF from sugared water (SW), HS and BT showed similar structure with high purity. Gamma irradiation have no effect on the BCNF structure while showed increasing in its crystallinity with increasing the doses (5–25 kGy). SEM illustrated the morphology of microbial culture and its symbiotic relationship in addition to the ultrafine structure of non-irradiated and irradiated BCNF.

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Use of gamma irradiation technology for modification of bacterial cellulose nanocrystals/chitosan nanocomposite film

Cited by 39 publications

References 35 publications

Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases

Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases

Biosynthesis of bacterial cellulose nanofibrils in black tea media by a symbiotic culture of bacteria and yeast isolated from commercial kombucha beverage

Biosynthesis of bacterial cellulose nanofibrils in black tea media by a symbiotic culture of bacteria and yeast isolated from commercial kombucha beverage

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