Oxidative chemical vapor deposition (oCVD) of patterned and functional grafted conducting polymer nanostructures

Journal of Materials Chemistry (Impact Factor: 7.44). 01/2010; 20(19):3968--3972. DOI: 10.1039/B925736E


We present a simple one-step process to simultaneously create patterned and amine functionalized biocompatible conducting polymer nanostructures, using grafting reactions between oxidative chemical vapor deposition (oCVD) PEDOT conducting polymers and amine functionalized polystyrene (PS) colloidal templates. The functionality of the colloidal template is directly transferred to the surface of the grafted PEDOT, which is patterned as nanobowls, while preserving the advantageous electrical properties of the bulk conducting polymer. This surface functionality affords the ability to couple bioactive molecules or sensing elements for various applications, which we demonstrate by immobilizing fluorescent ligands onto the PEDOT nanopatterns. Nanoscale substructure is introduced into the patterned oCVD layer by replacing the FeCl3 oxidizing agent with CuCl2.

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    • "An SEM image of poly(butylacrylate) grafted functional 'nanobowls', fabricated using 1 µm diameter spheres, after the colloid template had been removed, is reported in figure 4(b). Colloidal patterning of oCVD electrically conducting polymers has also been demonstrated [64]. Chen et al [65] also combined CVD with nanolithography: they demonstrated that depositing a coating by CVD containing active functional groups, it is possible to nanostructure a broad range of different substrates by nanolithography. "
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