Development of low-cost microfluidics sensor to monitor algae chlorophyll in surface waters

Implementation period: 30/05/2016 - 19/05/2017

GA number: 114-451-554/2016-03

Type of Project: National

Project aim: The project is aimed at developing a low-cost system for determining the concentration of algae in aquatic ecosystems.

 

About the project: Microscopic algae are an essential part of aquatic ecosystems, but due to the increased amount of nutrients, originating from pollution, they can overpopulate. This phenomenon is called “water blooms” and is very common in surface waters in Vojvodina, especially in the summer months. “Water bloom” is not only of an aesthetic nature but also leads to an unfavorable oxygen regime and the production of toxins that are harmful to human and animal health (high concentrations can be the cause of fish deaths). For this purpose, monitoring the concentration of algae, indirectly through the concentration of chlorophyll, is of crucial importance.

As part of the project, using a 3D printing technology, a cheap portable fluorescence sensor was developed that integrates low-cost optics available on the market in order to monitor the concentration of chlorophyll in aquatic environments. A sensor for field use has been developed that determines algal concentration without a requirement for additional laboratory equipment and analysis. The sensor is based on the theory of microfluidics, fabricated using cheap 3D printing technology. The entire photodetector measuring system is integrated with other electronic components and the wireless communication module into a complete detection system. The following activities have been realized within the project: prototyping using 3D printing technology, assembly of optical components, electronic system fabrication, collection of samples from different aquatic environments, and calibration of sensors in the laboratory using standard spectrophotometric methods.

 

Centers:

CST

CST