- Factsheet: Viable but non-culturable bacteria 21. September 2017
- Increase of Legionellosis cases in Europe – Infographics July 2017 2. August 2017
- Award at the Swiss Diagnostics Start Up Day 2017 14. July 2017
- CellStream & Legionella pneumophila SG1 Test Kit Video 24. May 2017
- New article about rqmicro’s technology by Laborpraxis.de 10. April 2017
- rqmicro featured in Laborpraxis.de 3. March 2017
- Investor Summit 2017 24. January 2017
- Happy Holiday (Newsletter December 2016) 22. December 2016
- rqmicro among the Top 50 Startups in Switzerland 16. September 2016
- rqmicro at Lab-Supply Trade Fair in Ludwigshafen 12. September 2016
- Exclusive news coverage in Unternehmerzeitung 25. July 2016
- rqmicro AG closes Series A financing round 9. June 2016
- rqmicro selected for MassChallenge Switzerland 23. May 2016
- rqmicro awarded with the CTI Label 14. April 2016
- rqmicro on business development tour with #GoGermany 24. February 2016
- Bilan selects rqmicro as Top 50 Startup to invest in 4. February 2016
- rqmicro selected for #GoGermany2016 roadshow 28. January 2016
- Seasons greetings! (Newsletter December 2015) 18. December 2015
- rqmicro wins Heuberger Winterthur Jungunternehmerpreis 2015 13. November 2015
- rqmicro at the Swiss embassy in Beijing 26. October 2015
rqmicro consists of a highly interdisciplinary team to develop and market innovative solutions. We focus on choosing and adapting suitable technologies to solve current problems with microbiological contamination in the water- and food industry. At the moment we focus on immunomagnetic separation in combination with microfluidic technology.
rqmicro’s scientific team studies bacteria that live in water and food and develops specific antibodies which are used for the detection. We develop our own antibodies to meet the high requirements of our rapid tests.
Immunomagnetic separation and Microfluidics
rqmicro uses the great potential of microfluidics to deliver a product, that allows target cells to be separated from a sample with high efficiency, using immunomagnetic separation (IMS). In contrast to conventional IMS methods, our approach separates target cells in a continuous process on a disposable cartridge, resulting in high recovery rates and easy handling.
Conventional IMS systems are labor intensive and lead to lower purity – especially in natural samples, where contaminants have a higher tendency to get stuck in the column. rqmicro’s microfluidic IMS process is contact-free and continuous, achieving highest purity rates on the market.
rqmicro’s synthesis of technologies for rapid on-chip sample separation
Flow cytometry is a laser-based electronic cell counting technology that allows multiparametric analysis of the properties of thousands of cells per second. The quantification of the cells in a given sample can be performed within minutes. Since it is a cultivation-independent method, all bacteria, also dormant or dead ones, are quantified. By using fluorescent viability dyes, we can discriminate viable from dead cells. This is especially useful when tracking efficacies of disinfection measures. These facts lead to superior data in almost real time.
Keserue, H.-A., Bertsch D., Schaffhauser D. Detektion von Legionellen in nur einer Stunde. WWT3: 8-11 (2014).
Keserue, H.-A., Bertsch D., Schaffhauser D. Schnelldetektion von Legionellen. Aqua & Gas 11: 36-39 (2013).
Keserue, H.-A., Baumgartner, A., Felleisen, R., Egli, T. Rapid detection of total and viable Legionella pneumophila in tap water by immunomagnetic separation, double fluorescent staining and flow cytometry, Microb. Biotechnol. 5: 753-763 (2012).
Keserue, H.-A., Füchslin, H. P., Wittwer, M., Nguyen-Viet, H., Nguyen, T.T., Surinkul, N., Koottatep, T., Schürch, N. and Egli, T. Comparison of rapid methods for detection of Giardiaspp. and Cryptosporidium spp. (oo)cysts using transportable instrumentation in a field deployment. Environ. Sci. Technol. 46: 8952–8959 (2012).
Keserue, H.-A. & Egli, T. Durchflusszytometrie: Nachweis von Krankheitserregern. Aqua & Gas 5: 34-38 (2012).
Keserue, H.-A., Füchslin, H. P. & Egli, T. Rapid detection and enumeration of Giardia lamblia cysts in water samples by immunomagnetic separation and flow cytometric analysis. Appl. Environ. Microbiol. 77: 5420-5427 (2011).
Füchslin, H. P., Kötzsch, S., Keserue, H.-A. & Egli, T. Rapid and quantitative detection of Legionella pneumophila applying immunomagnetic separation and flow cytometry. Cytometry 77A: 264-274 (2010).