Browsing Chemistry by Author "Kempaiah, Ravindra"
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Adsorption and Desorption of DNA on Graphene Oxide Studied by Fluorescently Labeled Oligonucleotides
Wu, Marissa; Kempaiah, Ravindra; Huang, Po-Jung Jimmy; Maheshwari, Vivek; Liu, Juewen (American Chemical Society, 2011-03-15)Being the newest member of the carbon materials family, graphene possesses many unique physical properties resulting is a wide range of applications. Recently, it was discovered that graphene oxide can effectively adsorb ... -
Electromechanical Coupling of Graphene With Cells
Kempaiah, Ravindra (University of Waterloo, 2011-08-10)Nanomaterials have been studied extensively in the last decade in the context of many applications such as polymer composites, energy harvesting systems, sensors, ‘transparent’-like materials, field-effect transistors (FETs), ... -
Synergistic pH effect for reversible shuttling aptamer-based biosensors between graphene oxide and target molecules
Huang, Po-Jung Jimmy; Kempaiah, Ravindra; Liu, Juewen (Royal Society of Chemistry, 2011-06-07)DNA aptamers are known to desorb from graphene oxide (GO) surface in the presence of target molecules. We demonstrate herein that the binding equilibrium can be shifted by simply tuning the solution pH. At lower pH, the ...