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A novel plant nanobionic optical sensor, capable of both detecting and, in real time, monitoring levels of arsenic in underground environments, exhibits changes in fluorescence intensity to indicate the presence and quantity of the metal. Scientists from Disruptive & Sustainable Technologies for Agricultural Precision (DiSTAP), an interdisciplinary research group at the Singapore-MIT Alliance for Research and Technology (SMART), MIT’s research enterprise in Singapore, introduced the technology.
In application, the sensor embeds into living plant tissue, where it detects arsenic levels as low as 0.2 parts per billion (ppb). Readouts from the nanosensors are obtainable via portable (and often inexpensive electronics). The…READ MORE