Oxygenated‐bacterial‐cellulose nanofibers with hydrogel, antimicrobial, and controlled oxygen release properties for rapid wound healing

2021 ◽  
pp. 51974
Author(s):  
Aida Fadakar Sarkandi ◽  
Majid Montazer ◽  
Mahnaz Mahmoudi Rad
Keyword(s):  
Wound Healing ◽  
Bacterial Cellulose ◽  
Cellulose Nanofibers ◽  
Oxygen Release

Antigen–Antibody Interaction‐Derived Bioadhesion of Bacterial Cellulose Nanofibers to Promote Topical Wound Healing

2022 ◽  
pp. 2110557
Author(s):  
Seulgi Kim ◽  
Jina Ko ◽  
Jae Hyuk Choi ◽  
Jeong Yi Kang ◽  
Chanoong Lim ◽  
...  
Keyword(s):  
Wound Healing ◽  
Bacterial Cellulose ◽  
Cellulose Nanofibers ◽  
Antigen Antibody

scholarly journals Influence of biological origin on the tensile properties of cellulose nanopapers

Cellulose ◽  
2021 ◽  
Author(s):  
Katri S. Kontturi ◽  
Koon-Yang Lee ◽  
Mitchell P. Jones ◽  
William W. Sampson ◽  
Alexander Bismarck ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cell Wall ◽  
Bacterial Cellulose ◽  
Raw Materials ◽  
Cellulose Nanofibers ◽  
Nanofibrillated Cellulose ◽  
Primary Cell Wall ◽  
Biological Origin ◽  
Basic Principles ◽  
Fiber Mats

Abstract Cellulose nanopapers provide diverse, strong and lightweight templates prepared entirely from sustainable raw materials, cellulose nanofibers (CNFs). Yet the strength of CNFs has not been fully capitalized in the resulting nanopapers and the relative influence of CNF strength, their bonding, and biological origin to nanopaper strength are unknown. Here, we show that basic principles from paper physics can be applied to CNF nanopapers to illuminate those relationships. Importantly, it appeared that ~ 200 MPa was the theoretical maximum for nanopapers with random fibril orientation. Furthermore, we demonstrate the contrast in tensile strength for nanopapers prepared from bacterial cellulose (BC) and wood-based nanofibrillated cellulose (NFC). Endemic amorphous polysaccharides (hemicelluloses) in NFC act as matrix in NFC nanopapers, strengthening the bonding between CNFs just like it improves the bonding between CNFs in the primary cell wall of plants. The conclusions apply to all composites containing non-woven fiber mats as reinforcement. Graphic abstract

scholarly journals Wound Healing Composite Materials of Bacterial Cellulose and Zinc Oxide Nanoparticles with Immobilized Betulin Diphosphate

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 713
Author(s):  
Nina Melnikova ◽  
Alexander Knyazev ◽  
Viktor Nikolskiy ◽  
Peter Peretyagin ◽  
Kseniia Belyaeva ◽  
...  
Keyword(s):  
Wound Healing ◽  
Zinc Oxide ◽  
Bacterial Cellulose ◽  
Zinc Oxide Nanoparticles ◽  
Wound Dressings ◽  
Oxide Nanoparticles ◽  
Burn Wound ◽  
Zno Nps ◽  
Wound Model ◽  
And Oxidative Stress

A design of new nanocomposites of bacterial cellulose (BC) and betulin diphosphate (BDP) pre-impregnated into the surface of zinc oxide nanoparticles (ZnO NPs) for the production of wound dressings is proposed. The sizes of crystalline BC and ZnO NPs (5–25%) corresponded to 5–6 nm and 10–18 nm, respectively (powder X-ray diffractometry (PXRD), Fourier-infrared (FTIR), ultraviolet (UV), atomic absorption (AAS) and photoluminescence (PL) spectroscopies). The biological activity of the wound dressings “BC-ZnO NPs-BDP” was investigated in rats using a burn wound model. Morpho-histological studies have shown that more intensive healing was observed during treatment with hydrophilic nanocomposites than the oleophilic standard (ZnO NPs-BDP oleogel; p < 0.001). Treatment by both hydrophilic and lipophilic agents led to increases in antioxidant enzyme activity (superoxide dismutase (SOD), catalase) in erythrocytes and decreases in the malondialdehyde (MDA) concentration by 7, 10 and 21 days (p < 0.001). The microcirculation index was restored on the 3rd day after burn under treatment with BC-ZnO NPs-BDP wound dressings. The results of effective wound healing with BC-ZnO NPs-BDP nanocomposites can be explained by the synergistic effect of all nanocomposite components, which regulate oxygenation and microcirculation, reducing hypoxia and oxidative stress in a burn wound.

Surface Modification of Bacterial Cellulose Nanofibers for Property Enhancement of Optically Transparent Composites:  Dependence on Acetyl-Group DS

2007 ◽  
Vol 8 (6) ◽  
pp. 1973-1978 ◽  
Author(s):  
Shinsuke Ifuku ◽  
Masaya Nogi ◽  
Kentaro Abe ◽  
Keishin Handa ◽  
Fumiaki Nakatsubo ◽  
...  
Keyword(s):  
Surface Modification ◽  
Bacterial Cellulose ◽  
Cellulose Nanofibers ◽  
Optically Transparent ◽  
Acetyl Group ◽  
Transparent Composites

Comparative study of paper and nanopaper properties prepared from bacterial cellulose nanofibers and fibers/ground cellulose nanofibers of canola straw

2013 ◽  
Vol 43 ◽  
pp. 732-737 ◽  
Author(s):  
Hossein Yousefi ◽  
Mehdi Faezipour ◽  
Sahab Hedjazi ◽  
Mohammad Mazhari Mousavi ◽  
Yoshio Azusa ◽  
...  
Keyword(s):  
Comparative Study ◽  
Bacterial Cellulose ◽  
Cellulose Nanofibers ◽  
Canola Straw

scholarly journals The comparision of glybenclamide and metformin-loaded bacterial cellulose/gelatin nanofibres produced by a portable electrohydrodynamic gun for diabetic wound healing

2020 ◽  
Vol 134 ◽  
pp. 109844 ◽  
Author(s):  
Muhammet Emin Cam ◽  
Maryam Crabbe-Mann ◽  
Hussain Alenezi ◽  
Ayse Nur Hazar-Yavuz ◽  
Busra Ertas ◽  
...  
Keyword(s):  
Wound Healing ◽  
Bacterial Cellulose ◽  
Diabetic Wound ◽  
Diabetic Wound Healing
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