A UAV-Mounted Whole Cell Biosensor System for Environmental Monitoring Applications
| Autor: | Dominique Macias, Yi Lu, Nicole R. Kreger, Zachary S. Dean, Pak Kin Wong |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Microfluidics Cytological Techniques Biomedical Engineering Analytical chemistry Cell Culture Techniques Pharmaceutical Science Medicine (miscellaneous) Bioengineering Biosensing Techniques Bacterial growth Molecular Dynamics Simulation Article Feedback chemistry.chemical_compound Environmental monitoring Escherichia coli Electrical and Electronic Engineering Microchannel Polydimethylsiloxane business.industry Equipment Design Computer Science Applications Radiation leakage chemistry Optoelectronics Whole cell business Biosensor Biotechnology Environmental Monitoring |
| Popis: | This study reports the development of a portable whole cell biosensor system for environmental monitoring applications, such as air quality control, water pollution monitoring, and radiation leakage detection. The system consists of a lightweight mechanical housing, a temperature regulating system, and a microfluidic bacterial inoculation channel. The overall system, which is less than 200 g, serves as a portable incubator for cell inoculation and can be mounted on an unmanned aerial vehicle for monitoring remote and unreachable locations. The feedback control system maintains the inoculation temperature within 0.05 $^{\circ}{\rm C}$ . The large surface-to-volume ratio of the polydimethylsiloxane microchannel facilitates effective gas exchange for rapid bacterial growth. Molecular dynamic simulation shows effective diffusion of major gas pollutants in PDMS toward gas sensing applications. By optimizing the design, we demonstrate the operation of the system in ambient temperatures from 5 $^{\circ}{\rm C}$ to 32 $^{\circ}{\rm C}$ and rapid bacterial growth in microchannels compared to standard bacterial culture techniques. |
| Databáze: | OpenAIRE |
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