The world is seeing a wireless technological revolution in communication and sensing. With the ever-increasing demand for additional smart functionalities in existing technologies, a significant amount of research has been directed towards sensing devices. As a result, microwave devices and systems, which constitute the backbone of all communication systems, have significantly advanced in recent years. Microwave sensors that are bi product of the recent revolution has been highly utilized for chemical sensing. They are used to report very small environmental changes and provide feedback for informed decision-making. In this proposal, we will utilize this knowledge, to develop sensors to obtain real time in-situ information.