Abstract
We describe a miniaturized field-deployable biosensor module, designed to function as an element in a sensor network for standoff monitoring and mapping of environmental hazards. The module harbors live bacterial sensor cells, genetically engineered to emit a bioluminescent signal in the presence of preselected target materials, which act as its core sensing elements. The module, which detects and processes the biological signal, composes a digital record that describes its findings, and can be transmitted to a remote receiver. The module is an autonomous self-contained unit that can function either as a standalone sensor, or as a node in a sensor network. The biosensor module can potentially be used for detecting any target material to which the sensor cells were engineered to respond. The module described herein was constructed to detect the presence of buried landmines underneath its footprint. The demonstrated detection sensitivity was 0.25 mg 2,4-dinitrotoluene per Kg soil.
Original language | American English |
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Article number | 113253 |
Journal | Biosensors and Bioelectronics |
Volume | 185 |
DOIs | |
State | Published - 1 Aug 2021 |
Bibliographical note
Funding Information:This research was sponsored by the Army Research Office and the Defense Advanced Research Projects Agency ( DARPA ) Biological Technologies Office ( BTO ) and was accomplished under Cooperative Agreement Number W911NF-18-2-0002. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Office and the Defense Advanced Research Projects Agency (DARPA) Biological Technologies Office (BTO) or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein. Work in the Belkin lab was partially supported by the Minerva Center for Bio-Hybrid Complex Systems.
Publisher Copyright:
© 2021 Elsevier B.V.
Keywords
- Bacterial whole-cell biosensors
- Bioluminescence
- Chemical sensing
- Environmental monitoring
- Explosives
- Optoelectronic biosensor module