Oligo(styryl)benzenes liposomal AIE-dots for bioimaging and phototherapy in an in vitro model of prostate cancer
JOURNAL OF COLLOID AND INTERFACE SCIENCE(2024)
Abstract
Bioquimica, Facultad de Farmacia, C/ Jose symbolscript Maria S symbolscript Ib symbolscript symbolscript ez s/n, 02008 Albacete, Spain Whilst the development of advanced organic dots with aggregation -induced emission characteristics (AIE-dots) is being intensively studied, their clinical translation in efficient biotherapeutic devices has yet to be tackled. This study explores the synergistic interplay of oligo(styryl)benzenes (OSBs), potent fluorogens with an increased emission in the aggregate state, and Indocyanine green (ICG) as dual Near Infrared (NIR)-visible fluorescent nanovesicles with efficient reactive oxygen species (ROS) generation capacity for cancer treatment using photodynamic therapy (PDT). The co -loading of OSBs and ICG in different nanovesicles has been thoroughly investigated. The nanovesicles ' physicochemical properties were manipulated via molecular engineering by modifying the structural properties of the lipid bilayer and the number of oligo(ethyleneoxide) chains in the OSB structure. Diffusion Ordered Spectroscopy (DOSY) NMR and spectrofluorometric studies revealed key differences
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Key words
Photodynamic therapy,Reactive oxygen species,Aggregation -induced emission,Oligo(styryl)benzenes,Indocyanine green
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