Baker, PriscillaArotiba, Omotayo AdemolaDept. of ChemistryFaculty of Science2014-02-102024-05-132010/02/152010/02/152014-02-102024-05-132008https://hdl.handle.net/10566/14708Philosophiae Doctor - PhDIn this thesis, I present the electrochemical studies of three dendrimeric polypropylene imine (PPI) nanomaterials and their applications as a platform in the development of a novel label free DNA nanobiosensor based on electrochemical impedance spectroscopy. Cyclic voltammetry (CV), differentia pulse voltammetry (DPV), square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS) techniques were used to study and model the electrochemical reactivities of the nanomaterials on glassy carbon electrode (GCE) as the working electrode.enElectrochemical DNA biosensorPoly(propylene imine)DendrimerMetallodendrimerGold nanoparticleGlassy Carbon ElectrodeBiosensorNanobiosensorThesisUniversity of the Western Cape