Ein kostengünstiges, tragbares Open-Source-Sensorboard mit drahtloser Kommunikation und Fluoreszenzdetektion zur farbmetrischen Detektion für mikrofluidische Anwendungen

Microfluidic colorimetric biosensors have demonstrated promising potential for detecting metal cations, anions, organic dyes, drugs, and pesticides. However, most colorimetric sensors are currently read using either a smartphone or professional optical imaging system, and there is still a need for an affordable and reliable colorimetric detector for microfluidic chips. Integrating reading and detection capabilities into a microfluidic system is crucial for point-of-care (POC) detection and can enable more complex microfluidic operations, such as lab-on-a-chip experiments or programmable microfluidics. Thus, we have developed an open-source colorimetric detection sensor board that can be easily integrated into existing microfluidic systems. The sensor board has a built-in UV source that enables fluorescence detection and can be directly communicated with using built-in USB and Wi-Fi connectivity, along with a set of simple APIs. With a total build cost of less than 12 EUR per unit, the sensor board is ideal for low-cost systems and DIY microfluidic users. Additionally, we have created a companion microfluidic chip carrier cartridge that can be customized based on the chip's dimensions. Lastly, we have developed a cross-platform open-source client application that showcases the sensor board's communication APIs and functionality.