Lensless fluorescence detection system provides highly sensitive water quality assessment

Researchers have shown that a fluorescence detection system that doesn’t contain any lenses can provide highly sensitive detection of deadly microorganisms in drinking water. With further development, the new approach could provide a low-cost and easy-to-use way to monitor water quality in resource-limited settings such as developing countries or areas affected by disasters. It could also be useful when water safety results are needed quickly, such as for swimming events, a concern highlighted during the Paris Olympics.