title: Conjugation of chitosan nanoparticles with biogenic and synthetic polyamines: A delivery tool for antitumor polyamine analogues.
abstract: We report the conjugation of chitosan nanoparticles with biogenic polyamines spermine (spm), spermidine (spmd) and synthetic polyamines 3,7,11,15-tetrazaheptadecane.4HCl (BE-333) in aqueous solution. Multiple spectroscopic methods, thermodynamic parameters and molecular modeling were used to analyse polyamine bindings to chitosan nanoparticles. Thermodynamic parameters ΔS, ΔH and ΔG showed that polyamines bind protein through H-bonding and hydrophobic contacts with biogenic polyamines form more stable conjugates than synthetic polyamines. As polymer size increases the stability of polyamine-chitosan conjugate increases. The loading efficacy was 40-50% for polyamine-chitosan conjugates. Modeling showed that polyamine-protein interaction is spontaneous and chitosan nanoparticles can be used for delivery of antitumor polyamine analogues.
authors: Department of Chemistry-Biochemistry and Physics, University of Québec at Trois- Rivières, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada.
authors: P
authors: P
authors: Chanphai
authors: Department of Chemistry-Biochemistry and Physics, University of Québec at Trois- Rivières, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada. Electronic address: tajmirri@uqtr.ca.
authors: H A
authors: HA
authors: Tajmir-Riahi
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry; D015317:Biogenic Polyamines / Q000138:chemical synthesis / Q000737:chemistry; D048271:Chitosan / Q000737:chemistry*; D016503:Drug Delivery Systems; D053758:Nanoparticles / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D015317:Biogenic Polyamines; D048271:Chitosan
keywords: Chitosan; Conjugation; Modeling; Polyamine; Stability; Thermodynamic