Department of Chemistry
Determination of cell metabolite VEGF165 and dynamic analysis of protein–DNA interactions by combination of microfluidic technique and luminescent switch-on probe
In this paper, we rationally design a novel G-quadruplex-selective luminescent iridium (III) complex for rapid detection of oligonucleotide and VEGF165 in microfluidics. This new probe is applied as a convenient biosensor for label-free quantitative analysis of VEGF165 protein from cell metabolism, as well as for studying the kinetics of the aptamer–protein interaction combination with a microfluidic platform. As a result, we have successfully established a quantitative analysis of VEGF165 from cell metabolism. Furthermore, based on the principles of hydrodynamic focusing and diffusive mixing, different transient states during kinetics process were monitored and recorded. Thus, the combination of microfluidic technique and G-quadruplex luminescent probe will be potentially applied in the studies of intramolecular interactions and molecule recognition in the future.
VEGF165, Kinetic analysis, Microfluidic device, Iridium (III) probe, Functional nucleic acid
Source Publication Title
Biosensors and Bioelectronics
Link to Publisher's Edition
Lin, Xuexia, Ka-Ho Leung, Ling Lin, Luyao Lin, Sheng Lin, Chung-Hang Leung, Dik Lung Ma, and Jin-Ming Lin. "Determination of cell metabolite VEGF165 and dynamic analysis of protein–DNA interactions by combination of microfluidic technique and luminescent switch-on probe." Biosensors and Bioelectronics 79 (2016): 41-47.