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  4. Dodecaborate cluster lipids with variable headgroups for boron neutron capture therapy: synthesis, physical-chemical properties and toxicity
 
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Dodecaborate cluster lipids with variable headgroups for boron neutron capture therapy: synthesis, physical-chemical properties and toxicity

Publikationstyp
Journal Article
Date Issued
2008-12-25
Sprache
English
Author(s)
Schaffran, Tanja  
Lissel, Franziska  
Samatanga, Brighton  
Karlsson, Göran  
Burghardt, Alexander  
Edwards, Katarina  
Winterhalter, Mathias  
Peschka-Süss, Regine  
Schubert, Rolf  
Gabel, Detlef  
TORE-URI
http://hdl.handle.net/11420/15156
Journal
Journal of organometallic chemistry  
Volume
694
Issue
11
Start Page
1708
End Page
1712
Citation
Journal of Organometallic Chemistry 694 (11): 1708-1712 (2009-05-01)
Publisher DOI
10.1016/j.jorganchem.2008.12.044
Scopus ID
2-s2.0-63249132829
Publisher
Elsevier
We have prepared two new boron-containing lipids with potential use in boron neutron capture therapy of tumors. These lipids consist of a diethanolamine frame with two myristoyl chains bonded as esters, and a butylene or ethyleneoxyethylene unit linking the doubly negatively charged dodecaborate cluster to the amino function of the frame, obtained by nucleophilic attack of the amino on the tetrahydrofurane and dioxane derivatives, respectively, of closo-dodecaborate. The latter cluster lipid can form liposomes at 25 °C whereas the former lipid at this temperature assembles into bilayer disks. Both lipids form stable liposomes when mixed with suitable helper lipids. The thermotropic behavior was found to be different for the two lipids, with the butylene lipid showing sharp melting transitions at surprisingly high temperatures. Toxicity in vitro and in vivo varies greatly, with the butylene derivative being more toxic than the ethyleneoxyethylene derivative.
Subjects
Boron cluster
Boron neutron capture therapy
Lipid
Liposome
Toxicity
DDC Class
540: Chemie
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