By pressing rubber and plastic together, chemists at the University of Nebraska-Lincoln simplified the production of small fluid transport channels that can drive the motion of soft robots and enable chemistry at the microscopic scale. analysis.

This technology creates stronger chemical bonds between silicones and unprecedented plastics, which can greatly reduce the time, complexity, and cost of producing and customizing microfluidic devices.

Assistant Professor of Chemistry Stephen Morin said, “We are very excited because the technology we provide can successfully integrate different materials in a simplified manner and support a large number of practical applications. We believe this can really bring new opportunities to the community.”

In presenting these opportunities, they used a basic software program to design a microfluidic network and a standard laser printer that mapped these channels onto a transparent Mylar wafer. After the researchers exposed the plastic sheet to ultraviolet light and dipped it into solution, the researchers placed the sheet on a silicone membrane and heated it.

The plastic and silicone are firmly bonded together, except for the printer ink marking path. When the team pumps air or liquid into these unbound sites, the fluid flows through them at a rate determined by the applied pressure, which is several times higher than the pressure experienced by previous bonding techniques.

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