The effects of cotton gauze coating with microbial cellulose

Meftahi, Amin; Khajavi, Ramin; Rashidi, Abosaeed; Sattari, Morteza; Yazdanshenas, Mohammad Esmail; Torabi, Mohammad

doi:10.1007/s10570-009-9377-y

Cited by 112 publications

(59 citation statements)

References 29 publications

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“…Gelin et al have shown that only 10% of the 99 wt% water, which can be present in bacterial cellulose behaves like free bulk water. Also, a study by Meftahi et al showed that cotton gauze coating with microbial cellulose increases water absorbency and wicking ability over 30%, and reduces drying time significantly. These are very positive facts with respect to making bandages using BC‐containing materials.…”

Section: Resultsmentioning

confidence: 99%

Novel Making of Bacterial Cellulose Blended Polymeric Fiber Bandages

Altun

Aydoğdu

Koç

et al. 2018

Macro Materials & Eng

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Bacterial cellulose (BC) is a very promising biological material. However, at present its utilization is limited by difficulties in shape forming it. In this Communication, it is shown how this can be overcome by blending it with poly(methylmethacrylate) (PMMA) polymer. BC:PMMA fibers are produced by pressurized gyration of blended BC:PMMA solutions. Subsequently, BC:PMMA bandage‐like scaffolds are generated with different blends. The products are investigated to determine their morphological and chemical features. Cell culture and proliferation tests are performed to obtain information on biocompatibility of the scaffolds.

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Section: Resultsmentioning

confidence: 99%

Novel Making of Bacterial Cellulose Blended Polymeric Fiber Bandages

Altun

Aydoğdu

Koç

et al. 2018

Macro Materials & Eng

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“…Cellulose is widely utilized in industrial applications (textiles, dietary supplements, gauze, scaffolds for tissue regeneration, and even headphones) (72,73). Microbial cellulose is coveted because of its purity and is typically harvested from Gluconacetobacter xylinus (73,74).…”

Section: Discussionmentioning

confidence: 99%

The Disulfide Bonding System Suppresses CsgD-Independent Cellulose Production in Escherichia coli

2014

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The bacterial extracellular matrix encases cells and protects them from host-related and environmental insults. The Escherichia coli master biofilm regulator CsgD is required for the production of the matrix components curli and cellulose. CsgD activates the diguanylate cyclase AdrA, which in turn stimulates cellulose production through cyclic di-GMP (c-di-GMP). Here, we identified and characterized a CsgD-and AdrA-independent cellulose production pathway that was maximally active when cultures were grown under reducing conditions or when the disulfide bonding system (DSB) was compromised. The CsgD-independent cellulose activation pathway was dependent on a second diguanylate cyclase, called YfiN. c-di-GMP production by YfiN was repressed by the periplasmic protein YfiR, and deletion of yfiR promoted CsgD-independent cellulose production. Conversely, when YfiR was overexpressed, cellulose production was decreased. Finally, we found that YfiR was oxidized by DsbA and that intraprotein YfiR disulfide bonds stabilized YfiR in the periplasm. Altogether, we showed that reducing conditions and mutations in the DSB system caused hyperactivation of YfiN and subsequent CsgD-independent cellulose production.

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“…[3][4][5][6] Veloderm ® is a biological polymeric membrane (manufactured by BTC S.r.l., Ancona, Italy) composed of cellulose microfibrils that are characterized by a low polymerization degree and a high level of crystallinity. [3][4][5][6] Veloderm ® is a biological polymeric membrane (manufactured by BTC S.r.l., Ancona, Italy) composed of cellulose microfibrils that are characterized by a low polymerization degree and a high level of crystallinity.…”

mentioning

confidence: 99%

Application of Crystalline Cellulose Membrane (Veloderm®) on Split-Thickness Skin Graft Donor Sites in Burn or Reconstructive Plastic Surgery Patients

Liu

Rong

et al. 2013

Journal of Burn Care & Research

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The present study was performed in China to compare the efficacy and safety of an advanced wound dressing made of crystalline cellulose (Veloderm) to a conventional treatment of three Vaseline gauzes in the management of skin donor sites of burns or reconstructive plastic surgery. In this prospective, multicenter, open-labeled, randomized clinical trial performed in three Chinese burn centers in China, 96 patients who required autologous split skin graft were randomized into either the test (Veloderm) group or the control (Vaseline gauze) group. Average healing times in the test group and in the control group were 8.40±2.90 and 8.92±2.58 days, respectively, with median values of 7.00 and 8.00 days, respectively: the difference between two groups was statistically significant (P=.045). Scores for exudates, pain intensity, and peripheral erythema showed no difference between the groups; however, composite scores of three variables on day 10 postoperatively was significantly lower in the test group (0.00±0.00 vs. 0.13±0.49; P = .043). The need for a dressing change was also significantly lower in the test group (12.5 vs. 31.25%; P = .036). Veloderm is a safe and effective dressing that may offer some advantages over the traditional application of Vaseline gauze in the management of donor sites in burn or reconstructive plastic surgery patients.

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The effects of cotton gauze coating with microbial cellulose

Cited by 112 publications

References 29 publications

Novel Making of Bacterial Cellulose Blended Polymeric Fiber Bandages

Novel Making of Bacterial Cellulose Blended Polymeric Fiber Bandages

The Disulfide Bonding System Suppresses CsgD-Independent Cellulose Production in Escherichia coli

Application of Crystalline Cellulose Membrane (Veloderm®) on Split-Thickness Skin Graft Donor Sites in Burn or Reconstructive Plastic Surgery Patients

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