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D.S. de Bruijn MSc (Douwe)

Guest PhD Candidate

Expertise

Engineering & Materials Science
Acoustic Impedance
Electrodes
Microfluidics
Opacity
Size Determination
Spectroscopy
Chemistry
Opacity
Physics & Astronomy
Cytometry

Research

Development of a microfluidic platform to study carbon fixation by algae

Since the industrial revolution approximately 30% of the anthropogenic CO2 is absorbed by oceans. The absorption of CO2 accelerates ocean acidification and puts pressure on the ecosystem. The oceanic carbon cycle is largely affected by algae. In particular specific algae, named Coccolithophores, are in some regions responsible for more than 20% of the total carbon fixation by means of photosynthesis and calcification.

In the past decades a lot of field and lab research has been performed on phytoplankton calcification, its climate impact and how it is affected by rising CO2 concentrations. However, it is still hard to predict future scenarios, due to the influence of a large number of factors.

In my PhD project a microfluidic platform will be developed to study single Coccolithophores using i.e. electrochemical impedance spectroscopy (EIS) to get more insight in this complex ecosystem.

Publications

Recent
de Bruijn, D. S. , ter Braak, P. M., Van de Waal, D. B. , Bomer, J. G. , Olthuis, W. , & van den Berg, A. (2021). Calcification state of algae studied with impedance flow cytometry. In 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences: 10 - 14 October 2021, Palm Springs, CA, USA (pp. 559-560)
De Bruijn, D. S. , Jorissen, K. F. A. , Olthuis, W. , & van den Berg, A. (2021). Particle Size Determination in Impedance Flow Cytometry Using Measured Opacity. In 21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 (pp. 1036-1039). (International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS); Vol. 2021). IEEE. https://doi.org/10.1109/Transducers50396.2021.9495740
de Bruijn, D. S., van de Waal, D. , Olthuis, W. , & van den Berg, A. (2021). Influence of acid treatment on the calcite exoskeleton of algae via impedance flow cytometry. Poster session presented at NanoBioTech-Montreux 2021, Montreux, Switzerland.
de Bruijn, D. S., ten Eikelder, H. R. A. , Papadimitriou, V. , Olthuis, W. , & van den Berg, A. (2021). Particle Size Determination via supervised machine learning in microfluidic impendance spectroscopy. In 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences: 10 - 14 October 2021, Palm Springs, CA, USA (pp. 1653-1654)
Kruit, S. A. , de Bruijn, D. S. , Olthuis, W. , & Segerink, L. (2021). Characterization of necrotic and viable spermatozoa in microfluidic impedance cytrometry. In 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences: 10 - 14 October 2021, Palm Springs, CA, USA (pp. 549-550)
de Bruijn, D. S. , ter Braak, P. M., Van de Waal, D. B. , Olthuis, W. , & van den Berg, A. (2020). Ocean Carbon Cycle Studied by Single-cell Impedance Cytometry on Calcifying Algae. 803-804. Paper presented at 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, ┬ÁTAS 2020, Virtual Event.

UT Research Information System

Contact Details

Visiting Address

University of Twente
Drienerlolaan 5
7522 NB Enschede
The Netherlands

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Mailing Address

University of Twente
P.O. Box 217
7500 AE Enschede
The Netherlands