This paper applied a simple and cost-benefit method for the production of regenerated bacterial cellulose. The inexpensive production of cellulose with complex media derived from wastewater from food industries such as molasses adds a lot of contaminants to the produced bacterial cellulose, which puts a lot of challenges in cellulose purification. Therefore, the present study aimed...

The purpose of this study was to develop a new use for microbial cellulose produced by the bacterium, Acetobacter xylinum. There is a potential application of bacterial cellulose to construct a nano-scale laminar flow reactor. Small particles (i.e. enzymes or solid phase reactants) can be embedded in a growing cellulose matrix with geographic specificity. A fluid containing a substrate can then...

Atomic force microscopy (AFM) and Fourier transformation infrared (FT-IR) spectroscopy was used for assessment of structural differences of celluloses of various origins. Investigated celluloses were: bacterial celluloses cultured in presence of pectin and/or xyloglucan, as well as commercial celluloses and cellulose extracted from apple parenchyma. The crystallinity index (XC%) varied from 25 ...

Cellulose is a biopolymer that has long been used as a biomaterial and its different sources, as Bacterial Cellulose (BC), have shown to possess impressive mechanical properties, which can lead to the development of new biomedical implants. Bacterial Cellulose is a polysaccharide secreted by bacteria as Gluconacetobacter xylinus: BC is composed of highly hydrated nanofibrils and it is character...

We investigated the autonomous bottom-up fabrication of three-dimensional honeycomb cellulose structures, using Gluconacetobacter xylinus as a bacterial nanoengine, on cellulose honeycomb templates prepared by casting water-in-oil emulsions on glass substrates (Kasai and Kondo, Macromol. Biosci., 4, 17-21, 2004). The template film had a unique molecular orientation state along the honeycomb fra...

Cellulose, a linear polymer of glucopyranose sugar molecules, is synthesized both by plants and bacteria. The plant-produced cellulose is present along with other compounds such as hemicelluloses and lignin, and has been used historically for a wide variety of applications ranging from paper-making to cosmetics. The cellulose produced by bacteria, on the other hand, is pure and difficult to mak...

Drug-loaded mono- and multilayer composite membranes were prepared. The composites, based on nano-fibrillated bacterial cellulose, nano-powdered polyvinyl alcohol, all biocompatible biodegradable, characterized in terms of basic factors related to drug diffusivity mass transfer: swelling ability, water solubility, vapor permeability. Tetracycline hydrochloride was used this case as model. Drug ...

improvement of the physical and mechanical properties of paper in the discussion of the application is very important. in order to fulfill this purpose, conventional processing techniques such as filtering and addition of long fibers and other chemicals such as additive resistors for dry and wet the pulp have been used. one of the methods to improve the physical and mechanical properties of pap...

Bacterial cellulose is a biological polymer with a variety of extraordinary properties which make it a functional material for different industrial fields. This work aimed at monitoring the effects of three different organic acids and nanoparticles on the production, water holding capacity and structural characteristics of bacterial cellulose. Different concentrations of organic acids and nanop...

Cellulose has a complex, multi-level supermolecular architecture. This natural polymer is built from superfine fibrils having diameters in the nano scale, and each such nanofibril contains ordered nanocrystallites and low-ordered nano-domains. In this review, the nano-structure of cellulose and its influence on various properties of the polymer is discussed. In particular, the ability of nano-s...