Aqueous near-infrared fluorescent composites based on apoferritin- encapsulated PbS quantum dots

Hennequin, B., Turyanska, L., Ben, T. , Beltran, A. M., Molina, S.I., Li, M., Mann, S., Patane, A. and Thomas, N. R. (2008) Aqueous near-infrared fluorescent composites based on apoferritin- encapsulated PbS quantum dots. Advanced Materials, 20 (19). pp. 3592-3596. ISSN 0935-9648


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A study was conducted to demonstrate the synthesis of an aqueous soluble near-infrared (NIR) fluorescent composite, based on a PbS quantum dot (QD), entrapped in the hollow core of a horse spleen apoferritin (AFt) protein case. The synthesis was performed by two different approaches,such as reassembly and nanoreactor processes. It was demonstrated that the reassembly method involves disassembly of the AFt shell into its component protein subunits and reassembly of the protein shell in the presence of performed PbS QDs. The study also demonstrated that the AFt-PbS construct provides a stable fluorescent composite in the NIR. It was demonstrated that this property of the composite combines with its solubility in water and that AFt provides an exterior protein coat to the QD that allows covalent attachment of other biomolecules, using chemical techniques.

Keywords:Carbon fiber reinforced plastics, Complexation, Fluorescence, Infrared devices, Light emission, Luminescence, Optical waveguides, Quantum electronics, Semiconducting lead compounds, Shells (structures), A stables, Apoferritin, Aqueous, Bio-molecules, Chemical techniques, Composite combines, Covalent attachments, Fluorescent composites, Hollow cores, Infrared, Protein subunits, Quantum dot, Quantum dots, Reassembly, Synthesis of, Semiconductor quantum dots
Subjects:F Physical Sciences > F300 Physics
F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
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ID Code:22578
Deposited On:25 Mar 2016 20:09

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