کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175290 458907 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and physicochemical properties of zinc and indium phthalocyanines conjugated to quantum dots, gold and magnetic nanoparticles
ترجمه فارسی عنوان
سنتز و خواص فیزیکوشیمیایی فتالوسیانین های روی و فسفاته کانوژته به نقاط کوانتومی، نانوذرات طلا و مغناطیسی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• 4-(4,6-Diaminopyrimidin-2-ylthio) substituted indium or zinc phthalocyanines are synthesized.
• The complexes are linked to gold and magnetic nanoparticles as well as to quantum dots.
• Gold nanoparticle conjugates irrespective of the central atoms have the highest singlet oxygen quantum yields.

This work reports on the conjugation of semiconductors quantum dots (QDs), gold (AuNPs) or Fe3O4 magnetic (MNPs) nanoparticles to 4-(4,6-diaminopyrimidin-2-ylthio) substituted indium or zinc phthalocyanines (Pcs). The QDs and MNPs were linked to the Pcs via an amide bond and by chemisorption unto AuNP surface. There is a general decrease in fluorescence quantum yields of the Pcs in the presence of all the nanoparticles. There is an increase triplet quantum yields for Pcs in the presence of AuNPs and QDs, but not in the presence of MNPs. AuNPs conjugates irrespective of the central atoms have the highest singlet oxygen quantum yield and are more photo-stable than all the other conjugates. MPcs are less photostable in the presence of MNPs.

Hybrid nanoparticles containing phthalocyanines as photosensitizers in combination with quantum dots, magnetic or gold nanoparticles show improved singlet oxygen generating behaviour compared to phthalocyanines alone.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 131, August 2016, Pages 186–200
نویسندگان
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