AP2.4 - Using Optical Sensor Nanoparticles for Imaging Chemical Dynamics is Marine Systems
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
- Applications 2 - Real-life Environments
- K. Koren - Department of Bioscience – Microbiology, Aarhus University, Aarhus (Denmark), M. Mosshammer, K. Brodersen, E. Trampe, M. Kühl - Marine Biological Section, University of Copenhagen, Helsingor (Denmark)
- 362 - 363
Dynamic chemical gradients are prevalent in many surface-associated marine habitats due to limited diffusion and high volume specific reaction rates of key analytes such as O2. For example, photosynthetic O2 production in biofilms and algal tissues can change O2 levels within a few minutes in response to changes in irradiance. In addition, many marine systems (e.g. corals or biofilms) are structurally complex and heterogeneous. We will discuss different possibilities of using optical nanosensors to visualize chemical dynamics in such heterogeneous systems. Marine applications of optical nanosensors in combination with different imaging techniques will be presented. By using optical nanosensor-based chemical imaging, it is possible to study structurally complex samples at high resolution; a clear advantage to other existing sensor approaches.