Observation of a chemically resistant organic residue from maize crop soils by transmission electron microscopy reveals the occurrence of thin laminae with 10-50 nm thickness, similar to resistant, highly aliphatic biopolymers found in kerogens and microbes. This discovery shows evidence for a novel and alternative mode of formation of soil organic matter by selective preservation of resistant ...

Background :Gelatin and chitosan are known as biodegradable and biocompatible biopolymers.These biopolymers have recently receivedincreasingly more attention for tissueengineering.The aim of this study was to evaluate the toxicity effects of gelatin-chitosan film on bone marrow stromal cell(BMSCs) culture in rat.                                                  Materials & Methods: First, gel...

Background Gelatin and chitosan are known as biodegradable and biocompatible biopolymers.These biopolymers have recently receivedincreasingly more attention for tissueengineering.The aim of this study was to evaluate the toxicity effects of gelatin-chitosan film on bone marrow stromal cell(BMSCs) culture in rat.                                                  Material & Methods: First, gelat...

Cellulose, chitin and chitosan are the most abundant biopolymer on earth and constitute an important class of biodegradable materials. The decomposition of three major biopolymers viz. chitin, chitosan and cellulose are studied using simultaneous thermal analysis i.e. thermogravimetry/differential thermal analyzer (TG/DTA). Thermal analysis is performed from ambient temperature to 700 °C in a f...

Bacterial cellulose (BC) has a range of structural and physicochemical properties that make it a particularly useful material for the culture of bacteria. We studied the growth of 14 genera of bacteria on BC substrates produced by Acetobacter xylinum and compared the results to growth on the commercially available biopolymers agar, gellan, and xanthan. We demonstrate that BC produces rates of b...

Biopolymers possess highly favorable properties for electrochemical biosensing such as their inherent biocompatibility, inexpensive nature, and strong interfacial adhesion. In this mini-review, we will focus on chitosan polydopamine, two of the most commonly used biopolymers, sensing applications. Chitosan is a polysaccharide that exhibits high chemical resistance, offers straightforward modifi...

Biodegradable plastics has gained significant commercial interest in recent years as they are having similar properties to that of the synthetic plastic used now a days, they are completely bio-degradable, are produced from natural (microbial) sources and are biocompatible in human system. These properties make PHB as an ideal candidate for various applications in medical field. The present art...

Biopolymers produced extracellularly by Pseudomonas putida KT2442 were examined via atomic force microscopy (AFM) and single molecule force spectroscopy. Surface biopolymers were probed in solutions with added salt concentrations ranging from that of pure water to 1 M KCl. By studying the physicochemical properties of the polymers over this range of salt concentrations, we observed a transition...