By confining various liquids inside a hollow microfluidic optomechanical resonator, researchers at Illinois built the first-ever bridge between optomechanics and microfluidics. The team is led by Gaurav Bahl, assistant professor in the Department of Mechanical Science and Engineering. The team's work, which was published in Nature Communications, has the potential to enable strongly localized, high-sensitivity, optomechanical interaction with chemical and biological samples.