Aminodextran-coated potassium niobate (KNbO3) nanocrystals for second harmonic bio-imaging

Abstract : Potassium niobate (KNbO3) nanocrystals exhibiting good second harmonic generation properties were coated with dextran derivatives containing primary amine groups. The surface modification results from attractive electrostatic interaction between the aminodextran molecules and the negatively charged surface of bare KNbO3 nanocrystals. To avoid flocculation, a suspension of KNbO3 nanocrystals was firstly prepared and then added drop-wise to an aqueous solution of aminodextran. The as-prepared hybrid (ADcoated KNbO3) nanoparticles were then characterized by using various techniques including transmission electron microscopy (TEM), infrared analysis (FTIR), dynamic light scattering (DLS) and zeta potential measurements as a function of pH of the dispersion medium. Then, the prepared AD- coated KNbO3 nanoparticles were evaluated in vitro diagnostic application as biomarker for non-tumor lung-derived.
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2013, pp. 7
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https://hal.archives-ouvertes.fr/hal-00874800
Contributeur : Polytech Annecy-Chambéry Symme <>
Soumis le : vendredi 18 octobre 2013 - 15:45:07
Dernière modification le : vendredi 22 mars 2019 - 14:30:12

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  • HAL Id : hal-00874800, version 1

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Rachid Ladj, Thibaud Magouroux, Hatem Fessi, Yannick Mugnier, Ronan Le Dantec, et al.. Aminodextran-coated potassium niobate (KNbO3) nanocrystals for second harmonic bio-imaging. Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2013, pp. 7. 〈hal-00874800〉

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