A comparative physicochemical study of unsymmetrical indium phthalocyanines in the presence of magnetic nanoparticles or quantum dots |
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| Authors: | Olawale L Osifeko |
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| Institution: | Department of Chemistry, Rhodes University, Grahamstown, South Africa |
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| Abstract: | Asymmetric indium phthalocyanine (3, containing an NH2 group) was conjugated (via an amide bond) to magnetic nanoparticle (MNP) functionalized with carboxylic acid or glutathione-capped CdTe/ZnSe/ZnO quantum dots to form 3-MNPs or 3-QDs. Techniques such as time-resolved fluorescence measurements, transmission electron microscopy, XPS, elemental analysis, FTIR, NMR (1H, 13C, and cozy), electronic spectroscopy, as well as mass spectroscopy were employed to characterize 3 and its nanoconjugates. The phthalocyanine conjugated to quantum dot (3-QDs) possesses the lowest Фpd higher Ф? and ФT as well as longer triplet lifetimes compares to 3-MNPs and free phthalocyanine. |
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| Keywords: | Indium phthalocyanine magnetic nanoparticles quantum dots Förster resonance energy transfer |
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