This edited compilation presents some of the latest advancements in the field of nanotechnology. Chapter One details the use of self-emulsifying drug delivery systems as a technique for improving drug solubility. Chapter Two describes a proposal for improving the efficiency of solar panels by harvesting heat energy as well as light energy. Chapter Three investigates the efficacy of a sensor composed of carbon nanotubes and other nanomaterials for detecting toxic phenolic compounds in the environment. Chapter Four studies the characteristics of a sensor prepared with low-dimensional metal oxide nanoparticles with a fast response towards Xanthine. Chapter Five compares different approaches to modelling of the kinetics of metal nanoparticles formation and analyses how these methods could be improved. Chapter Six deals with the use of heavy metal oxide nanoparticles for unsafe bio-chemical detection. Chapter Seven summarises the importance, properties and applications of carbon nanotubes as a potential superior adsorbent group. Lastly, Chapter Eight obtains the structural model of an electroelastic actuator for nanotechnology.