Direct Analysis of soil, water and biological fluids
What is Electrochemical micro-sensors
Electrochemical micro-sensor devices offer real-time information on complex environments by coupling a chemically selective layer to an electrochemical transducer. Electrochemical sensors provide a direct conversion of a biological event to an electronic signal. There are four main types of electrochemical sensors: potentiometric or ion-selective electrodes (ISEs), amperometric, impedimetric and transistors (OECT— organic electrochemical transistor, ISFET, etc.)
Applications:
- CEA-Leti’s technology can be adapted to curve various optical components—2D & 3D imagers, IR sensors, Microdisplays—for:
- Human and veterinarian healthcare for monitoring purposes:
- Wearable devices for noninvasive physiologica monitoring
- Point-of-care testing and diagnostics
- Wearable artificial organs
- Post-surgery infection
- Environment and industrial studies for monitoring
- Water and soil quality
- Inline or in bioreactor process
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What's new?
Electrochemical microfluidic-biosensors offers a wide range of improvements for both health practitioners and scientists: - Compact and low-cost devices
- Real-time and continuous multi-parametric measurement
- Biocompatible, flexible or pitch medium
- Autonomous devices: wireless communication, low energy consumption
- Formulation of sensitive and bio-sensitive layers for specific electrochemical detection
- Form factor, level of robustness depending on the application
The range of parameters measured covers: pH, Sodium (Na+), Potassium (K+), Calcium (Ca2+), Ammonium (NH4+), Carbon dioxide (CO2), Nitrate/nitrite (NO3-/ NO2-), Nitrogen monoxide (NO), Glucose (H2O2), Lactic acide, Creatinine. |
What's next?
CEA-Leti’s team is currently developing:
- Electrochemical sensors integrated into a microfluidic device—lab on a chip
Sensor networks for both cell culture and organ-on-chip
- Resorbable sensors
Sensors on paper
Liquid gated field effect transistors (LGFET) based on graphene
Coupling OECT and LGFET for design Boolean electrochemical sensors
Additional parameters are coming soon: Magnesium (Mg2+), Fluorine (F-), Phosphate (PO4-), Urea, heavy metal (Lead, Cadmium, Mercury, etc.), Arsenic