The lecturer at the College of Education for Pure Sciences/Department of Chemistry, Prof. Dr. (Mohammed Nazem Bahjat) obtained the acceptance to publish a scientific article tagged with the title (Nano-kerosene Polymer) by the Scientific Articles Committee at the Presidency of Karbala University after the article fulfilled all publication conditions. (Prof. Dr. Muhammad Nazem Bahgat) mentioned that polymers of natural origin have a necessary need to be used in various fields, especially in the biomedical fields. Chitosan is one of several promising and candidate compounds for this purpose. Chitosan is a biopolymer obtained from chitin, one of the most abundant substances on Earth. It is found in the cell walls of fungi and the exoskeletons of arthropods such as crustaceans as crabs, lobsters, shrimp, insects, beaks of cephalopods, and fish scales. Chitin is defined as a linear polymer abundant on Earth after cellulose, consisting of repeating units of monosaccharides with glycosidic bonds whereas chitin consists of repeating units of N-acetyl -D- glucosamine. Chitosan is obtained by a variety of chemical processes including deproteinization, purification, decolorization, and finally, deacetylation. Chitosan has also received great interest in medicine and pharmacology in particular. Chitosan is characterized by its biodegradability, biocompatibility, antimicrobial, non-toxic, antitumor properties, and easy bio absorption. According to these distinct properties, chitosan has entered into many medical applications such as promoting wound healing, anti-infective activity, antacid and ulcer activities that prevent or weaken drug-induced stomach irritation, and increased protective effects against infection caused by certain pathogens. Anti-tumor, as it inhibits the growth of cancer cells and the formation of blood vessels caused by malignancy.
