A fluorescence based method for the quantification of surface functional groups 
in closed micro- and nanofluidic channels.

Wang, Y.; Lowe, R. D.; Mejia, Y. X.; Feindt, H.; Steltenkamp, S.; Burg, T. P.

doi:10.1063/1.4802270

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学術論文

A fluorescence based method for the quantification of surface functional groups in closed micro- and nanofluidic channels.

MPS-Authors

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Wang, Y.
Research Group of Biological Micro- and Nanotechnology, MPI for Biophysical Chemistry, Max Planck Society;

/persons/resource/persons86810

Lowe, R. D.
Research Group of Biological Micro- and Nanotechnology, MPI for Biophysical Chemistry, Max Planck Society;

/persons/resource/persons32568

Mejia, Y. X.
Research Group of Biological Micro- and Nanotechnology, MPI for Biophysical Chemistry, Max Planck Society;

/persons/resource/persons14912

Burg, T. P.
Research Group of Biological Micro- and Nanotechnology, MPI for Biophysical Chemistry, Max Planck Society;

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引用

Wang, Y., Lowe, R. D., Mejia, Y. X., Feindt, H., Steltenkamp, S., & Burg, T. P. (2013). A fluorescence based method for the quantification of surface functional groups in closed micro- and nanofluidic channels. Biomicrofluidics, 7(2):. doi:10.1063/1.4802270.

引用: https://hdl.handle.net/11858/00-001M-0000-000E-FEC8-A

要旨

Surface analysis is critical for the validation of microfluidic surface modifications for biology, chemistry, and physics applications. However, until now quantitative analytical methods have mostly been focused on open surfaces. Here, we present a new fluorescence imaging method to directly measure the surface coverage of functional groups inside assembled microchannels over a wide dynamic range. A key advance of our work is the elimination of self-quenching to obtain a linear signal even with a high density of functional groups. This method is applied to image the density and monitor the stability of vapor deposited silane layers in bonded silicon/glass micro- and nanochannels.