title: The challenging combination of intense fluorescence and high singlet oxygen quantum yield in photostable chlorins--a contribution to theranostics.
abstract: High fluorescence quantum yields, high singlet oxygen quantum yields and intense absorptions in the phototherapeutic window are fundamental properties for compounds intended for fluorescence diagnosis and photodynamic therapy. We report on photostable chlorins that combine these properties. The fluorinated tetraphenylchlorin FCMet has ΦF = 0.396 and ΦΔ = 0.58 ± 0.07, whereas F2CMet has ΦF = 0.360 and ΦΔ = 0.54 ± 0.05, and both have molar absorption coefficients larger than 30,000 M(-1) cm(-1) above 650 nm. These dual functional agents use nearly all the energy absorbed to perform the desired functions and are appropriate for theranostics applications.
authors.affiliation: Chemistry Department, University of Coimbra, Rua Larga, Coimbra, Portugal.
authors.forename: Elsa F F
authors.initials: EF
authors.lastname: Silva
authors.forename: Fábio A
authors.initials: FA
authors.lastname: Schaberle
authors.forename: Carlos J P
authors.initials: CJ
authors.lastname: Monteiro
authors.forename: Janusz M
authors.initials: JM
authors.lastname: Dąbrowski
authors.forename: Luis G
authors.initials: LG
authors.lastname: Arnaut
mesh_terms: D010782:Photolysis; D017319:Photosensitizing Agents / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D011789:Quantum Theory; D026082:Singlet Oxygen / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature
chemical_list: D017319:Photosensitizing Agents; D011166:Porphyrins; D026082:Singlet Oxygen; C006969:chlorin