Non-contact fluorescent bleaching-independent method for temperature measurement in microfluidic systems based on DNA melting curves.

Neuzil, Pavel; Cheng, Fang; Soon, Jeffrey Bo Woon; Qian, Lan Liu; Reboud, Julien · Lab Chip · 2010

basic_science · Level V

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Abstract

This report introduces a bleaching-independent temperature measurement method based on the analysis of the fluorescence emitted during the melting of DNA molecules with the SYBR-Green I intercalator, in a microvolume where the strong non-linearity of the signal is used to eliminate the photobleaching effect as well as to determine the heat transfer rate between a heater and the sample and the temperature non-uniformity within the sample.

Medical subject headings