Professor Wallace is internationally recognized for research into the effect of electrical stimulation on organic conductors: specifically inherently conducting polymers and carbon nanotubes. The role of conductor composition and of the electrolyte in determining these properties has been elucidated. This knowledge has been used in the utilization of these materials in areas including new biosensing technologies, artificial muscles, polymer catalysts, corrosion protection, photovoltaic devices and electronic textiles. A number of patents are maintained by commercial collaborators in each of these areas. Professor Wallace has published 300 refereed publications to date and has supervised 41 PhD students to successful completion.