Chitosan is a cationic marine polymer derived form the shells of crustaceans (e.g., crabs). MP's chitosan is a partially de-acetylated chitin formed by the reaction of chitin with concentrated alkali. Chitin is a high molecular weight linear polymer of anhydro-N-acetyl-glucosamine. Chitin occurs in nature as part of the protective coating of some invertebrates. Chitosan polymer is biodegradable, with low toxicity, if any.
Chitosan forms gels with multivalent anions. Gives clear solutions that dry to strong, clear films. It is biocompatible, antibacterial and environmentally friendly polyelectrolyte with a variety of applications including water treatment, chromatography, additives for cosmetics, textile treatment for antimicrobial activity, novel fibers for textiles, photographic papers, biodegradable films, biomedical devices, and microcapsule implants for controlled release in drug delivery.
Solution Preparation: For a 1% solution, disperse 1 gram of Chitosan in 50 mL of water with a high-speed stirrer, and while agitation is continuing, add 50 mL 2% acid. Stir for 30 minutes or until dissolution is complete.
Key Applications: Enzymes, Inhibitors, Substrates
Application Areas: Molecular biology; Cell biology
Product Type: Proteins, Enzymes & Peptides
Density: bulk density: 0.15-0.3 g/cm3(Lit.)
Presentation: Off-White Powder
Format: Powder
Moisture content: ≤10%
Solubility: In Organic Acids - Chitosan is soluble at 1% in 1% acetic, adipic, formic, lactic, malic, propionic, or succinic acid. Formic acid has proved to be a good solvent over the entire acid concentration range from 0.25 to 50%, although at the extremes of this range, solutions contain gel particles. In Inorganic Acids:- Solubility in "mineral" acids is limited. It is soluble only within the acid concentration range from 0.15 to 1.1%. It is insoluble in phosphoric, or sulfuric acid. Chitosan is insoluble in neutral or alkaline media. To be effective, Chitosan must first be dissolved into an aqueous solution. In applications additional acids may be needed to maintain pH below 7 or Chitosan will precipitate out.
Storage & Handling: Store at Room Temperature (15-30°C)