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Microfluidic sensors have garnered significant attention over the past decade due to the growing need for microsystem automation and their applications in biology and optical control. This review paper explores the extensive use of microfluidic applications across diverse sectors, including medical, optical, and automation. The study examines various types of microfluidic sensors tailored for specific applications and analyzes the materials employed in microfluidic chips, including their respective advantages and disadvantages. Additionally, it delves into specific microfluidic pressure sensors, elucidating their underlying principles and methods for detecting parameters. This paper explores the concept of microfluidics sensing mechanisms with biomedical applications, flow sensor application to measure the pressure of a fluid, thermal sensor application to measure the cell temperature, and chemical sensor application to measure the concentration of chemicals such as glucose and cocaine. This material is utilized to design the sensor and fabricate the device to measure the fluid properties and effect of fluid in the channel. The paper also explores the need for microfluidic pressure sensors in different categories of applications. In conclusion, the research highlights the existing research gaps within the realm of microfluidic sensors.
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