Cyclic olefin copolymer as an X-ray compatible material for microfluidic devices.

Area of Science:

• Biophysics
• Materials Science
• X-ray Scattering

Background:

• Microfluidics and X-ray methods offer powerful tools for studying biological and biophysical systems at small length scales.
• Existing microfluidic devices often face limitations in reliability and compatibility with X-ray techniques.

Purpose of the Study:

• To introduce a straightforward fabrication method for X-ray compatible microfluidic devices.
• To evaluate the performance of these new devices compared to existing technologies.
• To demonstrate the utility of these devices in biophysical applications.

Main Methods:

• Fabrication of microfluidic devices using cyclic olefin copolymers.
• Benchmarking device performance against Kapton windows using small-angle X-ray scattering (SAXS).
• Investigating the early assembly of vimentin intermediate filament proteins.

Main Results:

• A reliable and straightforward fabrication method for X-ray compatible microfluidic devices was established.
• Devices made from cyclic olefin copolymers yielded data of equal quality to Kapton windows.
• The new devices successfully captured high-quality data for weakly scattering protein systems, like vimentin assembly.

Conclusions:

• Cyclic olefin copolymer microfluidic devices offer a reliable and effective alternative for X-ray scattering experiments.
• These devices facilitate advanced biophysical research, particularly in studying protein assembly dynamics.
• The fabrication method opens avenues for numerous future applications in X-ray compatible microfluidics.