A MICRO CO2 GAS SENSOR BASED ON SENSING OF PH-SENSITIVE HYDROGEL SWELLING BY MEANS OF A PRESSURE SENSOR

Herber, S.,Bomer, J.,Olthuis, W.,Bergveld, P.

Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05. The 13th International Conference（2005）

Cited 7|Views2

No score

Abstract

In this paper a sensor is presented for the detection of carbon dioxide gas inside the stomach in order to diagnose gastrointestinal ischemia. The operational principle of the sensor is measuring the CO2 induced pressure generation of a confined pH- sensitive hydrogel by means of a micro pressure sensor. The sensor is capable of measuring COz with a response time between 2 and 4 minutes and a maximum pressure of 0.29~10~ Pa at 20 kPa COz. The sensor is able to resist up to 1 M HCI acid as can be present inside the stomach. The results are very promising for real application and clinical trials are planned.

Translated text

Key words

carbon compounds,gas sensors,microsensors,organic compounds,patient diagnosis,pressure sensors,0.29E5 Pa,20 kPa,CO2,HCl acid,biosensors,carbon dioxide gas detection,gastrointestinal ischemia diagnosis,induced pressure generation,micro gas sensors,micro pressure sensor,pH-sensitive hydrogel swelling,patient diagnosis

AI Read Science

Must-Reading Tree

Example

Generate MRT to find the research sequence of this paper

Chat Paper

Summary is being generated by the instructions you defined