K. Mathwig, S. Schlautmann, S. G. Lemay and J. Hohlbein
A Novel Parallel Nanomixer for High-Throughput Single-Molecule Fluorescence Detection
Proceedings of the 17th International Conference on Miniaturized Systems for Chemistry and Life Science, Freiburg, Germany, Oct. 27 – 31 (2013) 1385.
This paper introduces a novel fluidic device based on syringe-driven flow of fluorescent species through a parallel array of nanochannels, in which the geometrical confinement enables long observation times of non-immobilized molecules. Extremely low flow rates are achieved by operating the array of nanochannels in parallel with a larger microchannel. The addition of a second microfluidic inlet allows for mixing different species in a well-defined volume, enabling the study of irreversible reactions such as DNA synthesis in real-time using single-molecule fluorescence resonance energy transfer. Devices are fabricated in glass with the purpose of high-throughput single-molecule fluorescence detection.