The design of micro colorimetry system for bio-investigations

Abstract

Modern day sciences require modern instruments. Expanding scope of investigations utilizes sophisticated methods and techniques. Main trend of modern day analytical instrumentation is autonomization, what is impossible without miniaturized instruments. In this work we propose a concept of a micro colorimetry system that will be capable of performing measurements in few micro-liter volume droplets. The system utilizes wireless operation and is controlled using a smartphone, or a laptop. High resolution, precision visible light sensor ensures the application of different colorimetric methods. In the first design stage sensor saturation issues, the frame of the system, and the controlling aspects will be discussed. By shaping the initial microlorimeter design, the 3D printer herewith the FreeCad program were used to model and print certain parts, such as a case, which would cover and protect the sensor from the exterior light rays to measure only the desired light radius. A smartphone’s flashlight was used for the light source to determine the maximum sensor saturation point. Changing the distance between the sensor and the light source, the sensor code variation was observed, the maximum saturation point was determined at 34196 and the most suitable distance between the objects was found. During the presentation design and measurement issues will be discussed.