Microfluidic Chip with Fiber-Tip Sensors for Synchronously Monitoring Concentration and Temperature of Glucose Solutions

Monitoring the properties of fluids in microfluidic chips often requires complex open-space optics technology and expensive equipment. In this work, we introduce dual-parameter optical sensors with fiber tips into the microfluidic chip. Multiple sensors were distributed in each channel of the chip,...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (5), p.2478
Main Authors: Qu, Jian, Liu, Yi, Li, Yan, Li, Jinjian, Meng, Songhe
Format: Article
Language:English
Subjects:
Biofilms
Communication
Design and construction
dual parameter sensor
fiber-tip sensor
Flow velocity
Glucose
Glucose monitors
Hyperglycemia
Light
microfluidic chips
Microfluidics
Monitoring
Optical fibers
Optical measuring instruments
Optics
Patient monitoring
Polymerization
Sensitivity
Sensors
Technology application
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Summary:Monitoring the properties of fluids in microfluidic chips often requires complex open-space optics technology and expensive equipment. In this work, we introduce dual-parameter optical sensors with fiber tips into the microfluidic chip. Multiple sensors were distributed in each channel of the chip, which enabled the real-time monitoring of the concentration and temperature of the microfluidics. The temperature sensitivity and glucose concentration sensitivity could reach 314 pm/°C and -0.678 dB/(g/L), respectively. The hemispherical probe hardly affected the microfluidic flow field. The integrated technology combined the optical fiber sensor with the microfluidic chip and was low cost with high performance. Therefore, we believe that the proposed microfluidic chip integrated with the optical sensor is beneficial for drug discovery, pathological research and material science investigation. The integrated technology has great application potential for micro total analysis systems (μ-TAS).
ISSN:1424-8220
1424-8220
DOI:10.3390/s23052478