Back to Search
Start Over
Electrical characterization of phytoplankton suspensions using impedance spectroscopy
Electrical characterization of phytoplankton suspensions using impedance spectroscopy
- Source :
- Journal of Applied Phycology. 33:1643-1650
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- This study used impedance spectroscopy measurements to extract the electrical properties of phytoplankton cells in suspension. Experimental measurements were acquired, and the single-shell model was applied to extract the specific membrane capacitance, cytoplasm permittivity, and conductivity of assumingly spherical cells in suspension utilizing Maxwell’s mixture theory of a controlled volume fraction of cells. The impedance of suspensions of algae was measured at different frequencies ranging from 3 kHz to 10 MHz and impedance values were compared to investigate differences between two types of cells by characterizing their change in cytoplasm permittivity and specific membrane capacitance. Differentiation between healthy control and nitrogen-depleted cultured algae was attempted. The extracted specific membrane capacitances of Chlamydomonas and Selenastrum were 15.5 ± 3.6 and 40.6 ± 12.6 mF m− 2 respectively. Successful differentiation based on the specific membrane capacitance of different algae species was achieved. However, no significant difference was noticed between nitrogen-abundant and nitrogen-depleted cultures.
- Subjects :
- 0106 biological sciences
Permittivity
Membrane potential
Materials science
biology
010604 marine biology & hydrobiology
Analytical chemistry
Plant Science
Selenastrum
Aquatic Science
Conductivity
biology.organism_classification
01 natural sciences
Dielectric spectroscopy
Membrane
Volume fraction
Suspension (vehicle)
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15735176 and 09218971
- Volume :
- 33
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Phycology
- Accession number :
- edsair.doi...........e0c5b03beeed0f784f7f9c95c7082f26
- Full Text :
- https://doi.org/10.1007/s10811-020-02363-2