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http://dx.doi.org/10.12772/TSE.2017.54.287

Effect of Solution Parameters on Fluorescent Properties of Chitosan  

Im, Dong Su (Department of Organic Materials Engineering, Chungnam National University)
Cheon, Ja Young (Department of Organic Materials Engineering, Chungnam National University)
Park, Won Ho (Department of Organic Materials Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.54, no.4, 2017 , pp. 287-291 More about this Journal
Abstract
Chitosan was prepared by deacetylation of chitin composed of an N-acetyl-D-glucosamine unit. In general, a fluorescent material contains atomic groups that exhibit a luminescent effect, and is known to fluoresce, owing to the excitation and emission processes at a low energy state. Organic compounds exhibiting such fluorescence can be applied in bio-imaging and detection. In a previous study, chitosan oligomers were reported to exhibit fluorescence in an aqueous solution, owing to their unique molecular structure properties. In this study, the effect of solution parameters on the fluorescence properties of chitosan were investigated in terms of the polymer parameters (molecular weight, degree of deacetylation, and concentration) and solvent parameter (concentration of acetic acid). The fluorescent intensity of chitosan increased at a lower molecular weight, higher degree of deacetylation, and lower acetic acid concentration.
Keywords
chitosan; fluorecent intensity; degree of deacetylation; carbamate ion;
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