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 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

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

scholarly journals Nitrogen, Phosphorus and Sulfur Co-Doped Pyrolyzed Bacterial Cellulose Nanofibers for Supercapacitors

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1912
Author(s):  
Zheng Li ◽  
Yaogang Wang ◽  
Wen Xia ◽  
Jixian Gong ◽  
Shiru Jia ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
High Performance ◽  
Electrode Materials ◽  
Cellulose Nanofibers ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
X Ray ◽  
Diffraction Patterns ◽  
Nitrogen Phosphorus ◽  
Co Doped

Heteroatom doping is an effective way to raise the electrochemical properties of carbon materials. In this paper, a novel electrode material including nitrogen, phosphorus, and sulfur co-doped pyrolyzed bacterial cellulose (N/P/S-PBC) nanofibers was produced. The morphologies, structure characteristics and electrochemical performances of the materials were investigated by Scanning electron microscopy, Fourier transform infrared spectra, X-ray diffraction patterns, X-ray photoelectronic spectroscopy, N2 sorption analysis and electrochemical measurements. When 3.9 atom% of nitrogen, 1.22 atom% of phosphorus and 0.6 atom% of sulfur co-doped into PBC, the specific capacitance of N/P/S-PBC at 1.0 A/g was 255 F/g and the N/P/S-PBC supercapacitors’ energy density at 1 A/g was 8.48 Wh/kg with a power density of 489.45 W/kg, which were better than those of the N/P-PBC and N/S-PBC supercapacitors. This material may be a very good candidate as the promising electrode materials for high-performance supercapacitors.

Ultradrawing novel ultra-high molecular weight polyethylene fibers filled with bacterial cellulose nanofibers

2014 ◽  
Vol 101 ◽  
pp. 1-10 ◽  
Author(s):  
Jen-taut Yeh ◽  
Chih-Chen Tsai ◽  
Chuen-Kai Wang ◽  
Jhih-Wun Shao ◽  
Ming-Zheng Xiao ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Bacterial Cellulose ◽  
High Molecular Weight ◽  
Cellulose Nanofibers ◽  
Ultra High Molecular Weight ◽  
Polyethylene Fibers

Preparation of Novel Ag/Bacterial Cellulose Hybrid Nanofibers for Antimicrobial Wound Dressing

2010 ◽  
Vol 152-153 ◽  
pp. 1771-1774 ◽  
Author(s):  
Jia Zhi Yang ◽  
Ju Wei Yu ◽  
Dong Ping Sun ◽  
Xu Jie Yang
Keyword(s):  
Bacterial Cellulose ◽  
Ag Nanoparticles ◽  
Antimicrobial Agents ◽  
Chemical Reduction ◽  
Cellulose Nanofibers ◽  
Analytical Techniques ◽  
Average Diameter ◽  
X Ray Diffraction ◽  
Hybrid Nanofibers ◽  
Transmission Electron

In this work, we describe a novel facile method to prepare long one-dimensional hybrid nanofibers by using hydrated bacterial cellulose nanofibers (BCF) as template. Silver (Ag) nanoparticles with an average diameter of 1.5 nm were well dispersed on BC nanofibers via a simple in situ chemical-reduction between AgNO3 and NaBH4 at relatively low temperature. The bare BCF and as-prepared Ag/BCF hybrid nanofibers were characterized by a range of analytical techniques including transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV–vis absorption spectra (UV–vis). The results reveal that Ag nanoparticles were homogeneously precipitated on the BCF surface. The results indicate that Ag/BCF hybrid nanofibers are promising candidate materials for functional antimicrobial agents.

Biosynthesis and Characterization of Bacterial Cellulose Produced by a Wild Strain of Acetobacter spp.

2013 ◽  
Vol 1498 ◽  
pp. 109-114
Author(s):  
Fatima Yassine ◽  
Michael Ibrahim ◽  
Maria Bassil ◽  
Ali Chokr ◽  
Anatoli Serghei ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Cellulose Nanofibers ◽  
Thermo Gravimetric Analysis ◽  
Wild Strain ◽  
Culture Conditions ◽  
Gravimetric Analysis ◽  
Wild Strains ◽  
Nanomaterials Synthesis ◽  
Static Conditions ◽  
Container Shape

ABSTRACTMany advances in nanomaterials synthesis have been recorded during the last 30 years. Bacterial cellulose (BC) produced by bacteria belonging to the genera Acetobacter, Rhizobium, Agrobacterium, and Sarcina is acquiring major importance as one of many eco-friendly materials with great potential in the biomedical field. The shape of BC bulk is sensitive to the container shape and incubation conditions such as agitation, carbon source, rate of oxygenation, electromagnetic radiation, temperature, and pH. The challenge is to control the dimension and the final shape of biosynthesized cellulose, by the optimization of culture conditions. The production of 3D structures based on BC is important for many industrial and biomedical applications such as paper and textile industries, biological implants, burn dressing material, and scaffolds for tissue regeneration. In our work, wild strains of Acetobacter spp. were isolated from homemade vinegar then purified and used for cellulose production. Four media of different initial viscosity were used. Cultures were performed under static conditions at 29°C, in darkness. The dimensions and texture of obtained bacterial cellulose nanofibers were studied using scanning electron microscopy (SEM). X-ray diffraction (XRD) showed that the biosynthesized material has a cellulose I crystalline phase characterized by three crystal planes. fourrier transform infrared spectroscopy (FTIR) data confirmed the chemical nature of the fibers. Thermo-gravimetric analysis (TGA) showed that BC preserves a relatively superior non-degradable fraction compared to microcrystalline cellulose.

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