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A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

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Optical Multi-Parameter Measuring System for Fluid and Air Bubble Recognition.

Valentina Bello¹, Elisabetta Bodo¹, Sabina Merlo¹

¹Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy.

Sensors (Basel, Switzerland)

|August 12, 2023

Summary

This summary is machine-generated.

This study presents a novel optofluidic sensor for detecting air bubbles and identifying fluids. The system simultaneously monitors fluid refractive index and bubble transit in medical devices.

Keywords:

air bubbles laser beam optical sensor position sensitive detector

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Published on: August 27, 2013

Area of Science:

Optofluidics
Biomedical Engineering
Sensing Technology

Background:

Accurate fluid monitoring is critical in medical devices, especially for liquid administration.
Air bubble detection is essential to prevent complications in fluidic systems.
Existing methods may lack the capability for simultaneous fluid and bubble analysis.

Purpose of the Study:

To develop a multi-parameter sensing system for simultaneous fluid identification and air bubble detection.
To design an optofluidic platform suitable for integration into automatic liquid administration pumps.
To validate the sensor's performance in detecting, counting, and estimating the speed of air bubbles.

Main Methods:

Utilized an optofluidic platform with a laser beam, plastic cuvette, back mirror, and position-sensitive detector.
Employed a dual-beam optical path for enhanced sensitivity and accuracy.
Developed specific signal analysis techniques for bubble detection based on light scattering patterns.

Main Results:

Successfully demonstrated simultaneous measurement of fluid refractive index and air bubble transit.
Achieved reliable detection and counting of air bubbles within the fluidic channel.
Enabled estimation of air bubble traveling speed alongside fluid characterization.

Conclusions:

The proposed optofluidic sensor offers a robust solution for real-time monitoring in medical fluidic systems.
The system's multi-parameter capability enhances safety and efficiency in liquid administration.
This technology has significant potential for integration into advanced medical devices.