Fluorine-substituted tetracationic ABAB-phthalocyanines for efficient photodynamic inactivation of Gram-positive and Gram-negative bacteria.

Abstract:

:Herein, we report the synthesis and characterization of new amphiphilic phthalocyanines (Pcs), the study of their singlet oxygen generation capabilities, and biological assays to determine their potential as photosensitizers for photodynamic inactivation of bacteria. In particular, Pcs with an ABAB geometry (where A and B refer to differently substituted isoindole constituents) have been synthesized. These molecules are endowed with bulky bis(trifluoromethylphenyl) groups in two facing isoindoles, which hinder aggregation and favour singlet oxygen generation, and pyridinium or alkylammonium moieties in the other two isoindoles. In particular, two water-soluble Pc derivatives (PS-1 and PS-2) have proved to be efficient in the photoinactivation of S. aureus and E. coli, selected as models of Gram-positive and Gram-negative bacteria.

journal_name

Eur J Med Chem

authors

Revuelta-Maza MÁ,González-Jiménez P,Hally C,Agut M,Nonell S,de la Torre G,Torres T

doi

10.1016/j.ejmech.2019.111957

subject

Has Abstract

pub_date

2020-02-01 00:00:00

pages

111957

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(19)31109-2

journal_volume

187

pub_type

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