Quantitative analysis of DNA-Dox diffusion kinetics in a microfluidic device using the fluorescence lifetime imaging microscopy method
- 1 November 2020
- journal article
- research article
- Published by IOP Publishing in Applied Physics Express
- Vol. 13 (11), 112005
- https://doi.org/10.35848/1882-0786/abc082
Abstract
We used a fluorescence lifetime imaging microscopy combined with a microfluidic mixer to study the kinetics of doxorubicin hydrochloride (Dox) diffusion into DNA. The mixing process in the microchannel model was simulated using COMSOL. According to the change of fluorescence lifetime before and after the binding of Dox to DNA, the fluorescence quenching effect of DNA on Dox was obtained both temporally and spatially, and the kinetic information was analyzed from imaging experiments. The experimental results show good agreement with the computational fluid dynamics simulation, and this method could be used to analyze the diffusion process of drug molecules.Funding Information
- the national key Research and Development Program of China (2017YFA0700402)
- National Natural Science Foundation of China (61525503)
- Shenzhen Basic Research Project (JCYJ20180305124902165)
- Postdoctoral Science Foundation of China (2018M643159)
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