Highly Stable and Oppositely Charged Hybrid Nanoparticles/Tubes. Fine Tuning of Electro-steric interactions To Fabricate Functional Surfaces

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Hybrid Functional Surfaces were generated via the novel surface functionalization pathway named Surface Grown Layers (SgL),where the hybrid layers are generated in a single step at a fluid/solid interface via fine tuning of electrostatic complexation between oppositely charged hybrid materials as a function of ionic strength. This simple and novel approach circumvents the drawbacks of multistep layer-by-layer self assembly. The basic criteria of SgL such as,the oppositely charged components must have a good stability towards high ionic strength was better accomplished by hybrid materials composed of inorganic nanoparticle/tubes as core and polymer as corona.This high saline stability feature allows us to switch off/back on the electrostatic interaction between oppositely charged materials by controlled removal of salt via dilution or dialysis.This bulk desalting transition was then stated on a given substrate to develop versatile functional surfaces, possess novel and tunable physicochemical properties and results anti-corrosive, conductive and superhydrophobic surfaces.

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Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: May 12, 2013
Pages: 670 - 673
Industry sector: Advanced Materials & Manufacturing
Topicss: Advanced Materials for Engineering Applications, Coatings, Surfaces & Membranes
ISBN: 978-1-4822-0581-7