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Water solubilization of hydrophobic nanocrystals by means of poly(maleic anhydride-alt-1-octadecene)

Journal of Materials Chemistry (Impact Factor: 7.44). 01/2008; 18(17):1991-1996. DOI: 10.1039/B717801H

ABSTRACT Poly(maleic anhydride-alt-1-octadecene), a cheap and commercially available polymer, was used to water-solubilize colloidal nanocrystals with various compositions, morphologies, and sizes. Highly pure nanoparticles with homogeneous distributions of sizes and surface charges were obtained after a single purification step of the polymer-coated particles by ultracentrifugation, saving precious time as compared to a previously published and similar polymer coating procedure. This simple strategy proved also to be generally applicable and represents a valid methodology to water-solubilize nanoparticles.

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    • "The phase transfer of hydrophobic nanoparticles of a variety of different core materials has been demonstrated by Pellegrino et al. (2004), using commercial poly(maleic anhydride alt-1-tetradecene), which is no longer available. The still available analogue poly(maleic anhydride alt-1-octadecene) can be used with an adopted procedure (Di Corato et al. 2008). A similar commercial derivative with tertiary amino groups has also been used for nanoparticle coating and phase transfer (Qi & Gao 2008), saving the step of postmodification with dimethylethylenediamine and EDC (Yezhelyev et al. 2008). "
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