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polyamine units is obviously a good means for bring-
ing a efficient balance between hydrophilicity and
hydrophobicity. Owing to the high photosensitizing
potential of these new conjugates, the specific influenc-
es of polyamine moieties on cellular uptake and bind-
ing to specific cellular targets deserve additional
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We thank the ‘Conseil Regional du Limousin’ for finan-
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Scheme of synthesis of polyamines 3–8, spectroscopic
data (Rf, UV, H NMR, MALDI, HRMS, and micro-
1
analytical data) of photosensitizers 12–15, 17–20, and
experimental information concerning partition coeffi-
cient measurement and cell culture method is available
in Supplementary data. Supplementary data associated
with this article can be found, in the online version, at
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