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Absorbance and fluorescence (excitation at λ 350 nm) spectra of NPs and AlPc-NPs (1 μM AlPc) dispersed in PBS, before and after NP dissolution, and of 1 μM free AlPc in PBS or ethanol.
Abbreviations: OD, optical density; AlPc, aluminum–phthalocyanine chloride; PBS, phosphate buffered saline; NP, nanoparticle.
