INTERACTIONS BETWEEN CHITOSAN AND ALPHA-EMITTERS - PU-238 AND AM-241

Authors
Citation
E. Piron et A. Domard, INTERACTIONS BETWEEN CHITOSAN AND ALPHA-EMITTERS - PU-238 AND AM-241, International journal of biological macromolecules, 23(2), 1998, pp. 121-125
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biology
ISSN journal
0141-8130
Volume
23
Issue
2
Year of publication
1998
Pages
121 - 125
Database
ISI
SICI code
0141-8130(1998)23:2<121:IBCAA->2.0.ZU;2-Q
Abstract
This paper deals with the first study published on the interactions be tween chitosan and two radioactive elements (alpha emitters): Pu-238 a nd Am-241. The authors determined the optimal experimental conditions for each of them (pH, ionic strength (FI), carbonate concentration) an d attempted to explain the mechanism of interaction. The study of the nature and the percentage of the metallic ionic species present in sol ution as a function of the experimental conditions was carried out by means of the TOT software for Am-241. The authors showed a good fixati on of Pu-238 and Am-241 On chitosan for pH's between 11-12, with the b est results for Am-241. Nevertheless, an increase of the FI or the add ition of a complexant of these alpha emitters induced a decrease of th e interactions with chitosan. (C) 1998 Elsevier Science B.V. All right s reserved.