کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
29569 44422 2016 6 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Highly efficient energy transfer from quantum dot to allophycocyanin in hybrid structures
ترجمه فارسی عنوان
انتقال انرژي بسيار موثر از نقطه کوانتوم به آلفوكوكسيانين در ساختارهاي هيبريد
کلمات کلیدی
نقاط کوانتومی؛ آلوفوکسیانین؛ انتقال انرژی تحریک؛ فلورسانس؛ سازه های ترکیبی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی


• CdSe/ZnS QD transfers excitation energy to allophycocyanin fluorophores.
• Allophycocyanin monomers show increased exciton–exciton interaction with QD.
• We obtained covalently bound hybrid structures via random chemical coupling method.
• Significant enhancement of APC fluorescence was shown in covalently bound hybrids.

Excitation energy transfer (EET) is observed in hybrid structures that composed of allophycocyanin and CdSe/ZnS core-shell quantum dot (QD). We demonstrate that the EET efficiency in such systems could be significantly increased under conditions inducing monomerization of allophycocyanin trimers. For these purposes, the EET efficiency was estimated under different experimental conditions (pH, high temperature or the presence of NaSCN) for self-assembled hybrid structures. Additionally, the hybrid structures were stabilized by covalent coupling which resulted in approximately 20-fold enhancement of allophycocyanin fluorescence upon excitation of QDs. The observed effect provides new opportunities for the practical implementation of hybrid systems as fluorescent markers.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 160, July 2016, Pages 96–101
نویسندگان
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