Results 51 to 60 of about 1,124,114 (299)

CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE

Química Nova, 2015
Bacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 oC with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times
Lima, Lais R., Santos, Daniele B., Santos, Moliria V., Barud, Hernane S., Henrique, Mariana A., Pasquini, Daniel, Pecoraro, Edison, Ribeiro, Sidney J. L.   +7 more
openaire   +3 more sources

Fish powder as a low-cost component in media for producing bacterial cellulose [PDF]

, 2012
Some bacteria can produce extracellular bacterial cellulose (BC). This polysaccharide is chemically identical to cellulose produced by plants but has no associated lignin and hemicelluloses. The unique mechanical properties, chemical stability and purity
Lay, Mark C., Nair, Giridhar R., Swan, Janis E., Adnan, Azila Binti   +3 more
core  

Production and characterization of bacterial cellulose scaffold and its modification with hyaluronic acid and gelatin for glioblastoma cell culture

, 2021
Three-dimensional (3D) in vitro cell culture models have recently gained increasing interest in predicting the response of anticancer drugs. In this study first, we tried to obtain a novel hyaluronic acid (HA)/gelatin (Gel) modified bacterial cellulose ...
GÜNDÜZ, OĞUZHAN, ÜNAL YILDIRIM, SEMRA, YILMAZ, BETÜL, OKTAR, FAİK NÜZHET   +3 more
core   +1 more source

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

Advanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali, Jixin Zheng, Satoshi Wakai, Jie Liu, Hidetaka Nomaki, Misato Tsukatani, Noriyuki Isobe, Jingcheng Sang, Yuriko Aoki, Hideo Okamura, Daisuke Sasaki, Chiaki Ogino, Yuzo Yamazaki, Takashi Nishikaze, Kenji Takada, Maiko K. Okajima, Tatsuo Kaneko   +16 more
wiley   +1 more source

Microbial Cellulose: Fermentative Production and Applications

Food Technology and Biotechnology, 2009
Bacterial cellulose, an exopolysaccharide produced by some bacteria, has unique structural and mechanical properties and is highly pure as compared to plant cellulose.
Prashant R. Chawla, Ishwar B. Bajaj, Shrikant A. Survase, Rekha S. Singhal   +3 more
doaj  

Antibacterial Activity of Bacterial Cellulose Loaded with Bacitracin and Amoxicillin: In Vitro Studies

Molecules, 2020
The use of bacterial cellulose (BC) in skin wound treatment is very attractive due to its unique characteristics. These dressings’ wet environment is an important feature that ensures efficient healing. In order to enhance the antimicrobial performances,
Georgiana-Mădălina Lemnaru (Popa), Roxana Doina Truşcă, Cornelia-Ioana Ilie, Roxana Elena Țiplea, Denisa Ficai, Ovidiu Oprea, Anicuța Stoica-Guzun, Anton Ficai, Lia-Mara Dițu   +8 more
doaj   +1 more source

PLL‐g‐HPA Hydrogel Microneedles Loaded With Rhoifolin Target Macrophages to Alleviate Fibroblast Senescence for Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
Diabetic wound healing is hindered by a pathological crosstalk wherein elevated IL‐11 induces M1 macrophage polarization, leading to IL‐1β/IL‐6 release and subsequent fibroblast senescence via RAS/p38MAPK/p53/E2F1 signaling. Here, we develop a Gel@M‐Rho microneedle patch that delivers rhoifolin‐loaded, macrophage membrane‐coated nanoparticles to target
Jiewen Liao, Lin Gan, Li Lu, Lizhi Ouyang, Yuan Xiong, Fawwaz Al‐Smadi, Guandong Dai, Mohammad‐Ali Shahbazi, Bobin Mi, Mengfei Liu, Guohui Liu   +10 more
wiley   +1 more source

Oxidation of cellulose in pressurized carbon dioxide [PDF]

, 2009
This work presents first results upon oxidation of type II cellulose by nitrogen dioxide dissolved in carbon dioxide at high pressure. This reaction leads to oxidized cellulose, a natural-based bioresorbable fabric used for biomedical applications.
Montanari, Suzelei, Vignon, Michel, Camy, Séverine, Rattaz, Aurélie, Condoret, Jean-Stéphane   +4 more
core   +1 more source

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

Advanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi, Matthew B. Baker, Dominik Schauenburg   +2 more
wiley   +1 more source

Sustainable Synthesis of Bacterial Cellulose Nanocrystals from Glucomannan-Based Bacterial Cellulose

Indonesian Journal of Chemistry
Bacterial cellulose (BC), derived from glucose fermentation, is a renewable material known for its abundant availability, quick production, cost-effectiveness, and eco-friendly characteristics.
Tri Widjaja, Siti Nurkhamidah, Hikmatun Ni’mah, Endarto Yudo Wardhono, Aisyah Alifatul Zahidah Rohmah, Anggi Tirta, Rossesari Nailah, Citra Yulia Sari   +7 more
doaj   +1 more source