alexa X-ray microfocussing combined with microfluidics for on-chip X-ray scattering measurements.


Biochemistry & Physiology: Open Access

Author(s): Barrett R, Faucon M, Lopez J, Cristobal G, Destremaut F,

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Abstract This work describes the fabrication of thin microfluidic devices in Kapton (polyimide). These chips are well-suited to perform X-ray scattering experiments using intense microfocussed beams, as Kapton is both relatively resistant to the high intensities generated by a synchrotron, and almost transparent to X-rays. We show networks of microchannels obtained using laser ablation of Kapton films, and we also present a simple way to perform fusion bonding between two Kapton films. The possibilities offered using such devices are illustrated with X-ray scattering experiments. These experiments demonstrate that structural measurements in the 1 A-20 nm range can be obtained with spatial resolutions of a few microns in a microchannel. This article was published in Lab Chip and referenced in Biochemistry & Physiology: Open Access

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