Abstract
AbstractThe conjugation of peptides to porphyrins and related tetrapyrrole based macrocycles have extended their applications in biological systems, where the photophysical properties of these molecules and their ability to coordinate metals can be exploited for detecting and opposing to the onset of important diseases. This review presents a survey of the published literature over last years on biomedical applications of these hybrid compounds, mostly in the field of photodynamic therapy (PDT), but also in sensing key metabolites and peculiar structures of biomolecules in living systems. Peptides based strategies to improve the efficacy of the photosensitizer (PS) in PDT will be discussed, as well as solutions to overcome some limitations recently emerged in the use of peptides as delivery vehicles. An overview on possible application of porphyrin–peptide conjugates in detection of biomarkers of physiological and pathological states will be also presented.
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