Advances in sensor technologies have had a profound and fundamental impact across virtually every industry. With increased emphasis on environmental monitoring, sensor technologies, with their capabilities to detect and discriminate various components at the molecular level, are increasingly assisting the detection of pollutants in environmental processes. Also, sensor technologies are offering a deeper understanding of how different electronics function and how biomolecules interact. With the evolution of sensor technologies, like in chemical sensing, comprehending the underlying mechanisms becomes increasingly essential, especially in the production of sensing materials.