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Issue 15, 2013
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Bio-nanohybrids of quantum dots and photoproteins facilitating strong nonradiative energy transfer

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Abstract

Utilization of light is crucial for the life cycle of many organisms. Also, many organisms can create light by utilizing chemical energy emerged from biochemical reactions. Being the most important structural units of the organisms, proteins play a vital role in the formation of light in the form of bioluminescence. Such photoproteins have been isolated and identified for a long time; the exact mechanism of their bioluminescence is well established. Here we show a biomimetic approach to build a photoprotein based excitonic nanoassembly model system using colloidal quantum dots (QDs) for a new bioluminescent couple to be utilized in biotechnological and photonic applications. We concentrated on the formation mechanism of nanohybrids using a kinetic and thermodynamic approach. Finally we propose a biosensing scheme with an ON/OFF switch using the QD–GFP hybrid. The QD–GFP hybrid system promises strong exciton–exciton coupling between the protein and the quantum dot at a high efficiency level, possessing enhanced capabilities of light harvesting, which may bring new technological opportunities to mimic biophotonic events.

Graphical abstract: Bio-nanohybrids of quantum dots and photoproteins facilitating strong nonradiative energy transfer

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Publication details

The article was received on 21 Mar 2013, accepted on 19 May 2013 and first published on 21 May 2013


Article type: Paper
DOI: 10.1039/C3NR01417G
Citation: Nanoscale, 2013,5, 7034-7040
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    Bio-nanohybrids of quantum dots and photoproteins facilitating strong nonradiative energy transfer

    U. O. Safak Seker, E. Mutlugun, P. L. Hernandez-Martinez, V. K. Sharma, V. Lesnyak, N. Gaponik, A. Eychmüller and H. V. Demir, Nanoscale, 2013, 5, 7034
    DOI: 10.1039/C3NR01417G

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