We are currently developing a miniaturized low-cost device for detecting algae species based on their pigmentation. In contrast to existing technology, our device is modular and can integrate up to 8 different excitation wavelengths and 4 different emission channels. The device is operated in a flow-through mode similar to a flow-cytometer, however, using only low-cost equipment such as photodiodes and LEDs. The sampling frequency of 1 kHz will allow the detection of single particles or cells passing through the quartz capillary (ID of 1.9 mm) with a flow-rate of 30 mL/min. First results showed promising patterns down to concentrations of about 2 cells per 10 µL (the volume of the illuminated part of the capillary) for the diatom species Skeletonema costatum. Our focus is on the early detection of potentially harmful algae species, such as biotoxin producing dinoflagellates.


Mistlberger, G., Graz University of Technology, Austria, mistlberger@tugraz.at

Müller, B. J., Graz University of Technology, Austria, b.mueller@tugraz.at

Holly, C., Graz University of Technology, Austria, christian.holly@tugraz.at

Klimant, I., Graz University of Technology, Austria, klimant@tugraz.at


Poster presentation

Session #:137
Date: 2/26/2015
Time: 18:30 - 20:00
Location: Poster/Exhibit Hall

Presentation is given by student: No

PosterID: 521