This project is funded as an individual postdoctoral grant by The Danish Council for Independent Research | Technology and Production Sciences
Grant recipient: Christoph Vannahme
Institution: Technical University of Denmark (DTU)
Amount: kr 3.035.520 + kr. 815.295
- Patent applications:
- A surface refractive index scanning system, European patent application no. 14167484.6 (May 2014)
- Method of and system for identification or estimation of a refractive index of a liquid, European patent application no. 14164354.4 (April 2014).
- DTU Nanotech News:
- Conference presentations:
- Nanoimprinted distributed feedback dye laser sensor for real-time imaging of small molecule motion at IEEE Sensors 2014
- Optimized distributed feedback dye laser sensor for real-time monitoring of small molecule flow at ECIO-MOC 2014
- Teaching and learning nanoimprint lithography at DTU at NNT 2013
- Polymer optofluidic chip with DUV-induced waveguides for optical manipulation at MNE 2013
- Invited talk: Multilayer slab waveguide distributed feedback dye laser sensors at PIERS 2013 in Stockholm
- Single-mode biological distributed feedback lasers based on vitamin B doped gelatin at EOS Optofluidics 2013
- Multilayer distributed feedback dye lasers: Enhanced emission wavelength and sensing at CLEO Europe 2013
- Invited talk: Optofluidic dye lasers in a foil at Northern Optics 2012
The aim of this project is using intra-cavity detection with polymer photonic crystal dye lasers for label-free monitoring of secreted proteins from cells in time and space. This will allow protein monitoring that is not possible with state-of-the-art fluorescent label based detection. The novel tool developed in this project will lead to deeper understanding of the construction of tissue and the pathways that exist in it. In order to realize this, a photonic crystal dye laser surface will be optimized for specific and label-free detection of proteins. Due to specific protein binding to a receptor, e.g. an antibody on the laser’s surface, it reacts with a specific local wavelength shift – the detection signal. A computer controlled optical setup will be installed for read-out. In particular, the secretion of interleukin 18 from human skin cells (keratinocytes) will be investigated to gain a deeper understanding of their role in contact allergy.
The project is a collaboration between
Christoph Vannahme joined DTU Nanotech as a Hans Christian Ørsted Postdoctoral Scholarship holder in 2011 after he had obtained a Ph.D. degree in engineering (grade: summa cum laude) from the Karlsruhe Institute of Technology, Germany. He studied physics at the University of Paderborn, Germany and received his Bachelor’s and Master’s degree with distinction in 2005 and 2007, respectively. Christoph has started his scientific career working on integrated optics in lithium niobate, in particular on integrated optical ring resonator gyroscopes. During his Ph.D. studies, he successfully integrated organic photonic crystal lasers, both solid state and optofluidic, into plastic lab-on-a-chip systems. At DTU Nanotech, Christoph is continuing his work on photonic crystal dye lasers with a focus on biosensing. He has co-authored 24 peer reviewed journal articles and 4 patents and patent applications.
Christoph has received the elite research award for talented young researchers "Sapere Aude – Ung Eliteforsk" from the Danish Council for Independent Research (DFF) for an extension of this main project called "Sustainable biological lasers". In this extension, Christoph will develop photonic crystal lasers which are made of biological material only.