Detachable glass micro/nanofluidic device.

Area of Science:

• Microfluidics and Nanofluidics
• Materials Science
• Surface Chemistry

Background:

• Glass is a preferred material for micro/nanofluidic devices due to optical properties, chemical resistance, and surface modifiability.
• Reusability of glass micro/nanofluidic devices is often hindered by challenges in cleaning and re-modifying ultrasmall channels.
• Detachable devices offer a practical solution for accessing and maintaining channel surfaces, simplifying fabrication and reducing costs.

Purpose of the Study:

• To develop a detachable glass micro/nanofluidic device.
• To enable easy access for cleaning and surface re-modification of micro/nanofluidic channels.
• To achieve controlled bonding for both high pressure capacity and facile substrate separation.

Main Methods:

• Development of a novel low-temperature bonding method for glass substrates.
• Controlled adjustment of surface bonding energy.
• Testing of the detaching and bonding cycles of the fabricated devices.

Main Results:

• Successful fabrication of detachable glass micro/nanofluidic devices.
• Demonstration of controlled surface bonding energy for high pressure capacity and easy separation.
• Confirmation of device reusability through at least four detaching and bonding cycles without fracturing.

Conclusions:

• The proposed low-temperature bonding method facilitates the creation of reusable and easily maintainable glass micro/nanofluidic devices.
• Detachable devices enhance the practicality of glass substrates in research and real-time applications.
• This technology offers a cost-effective and efficient alternative to traditional micro/nano-fabrication processes.