This project combines advanced optical and nanofabrication techniques to develop a fast, cost-effective, highly sensitive biosensing device. The device will be applied for microbial contamination detection. Microbial contaminations are a major threat to public health, safety, and economic stability on a global scale. They result in several diseases and health conditions, ranging from foodborne illnesses to hospital-acquired infections and contamination of consumer products, which severely impact public health and safety. This project addresses the major challenges facing microbial contamination detection using two complementary approaches: advanced optics and nanofabrication. Two PhD positions are available for each of these approaches.