CU Boulder faculty hosted a summer school program for faculty from around the world on microbubbles this week in the Integrated Teaching and Learning Laboratory on campus. The program was funded through the Imaging Science Interdisciplinary Research Theme and IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society. Microbubbles and other echogenic colloids are used in biomedical ultrasonics as contrast agents, molecular imaging probes and targeted drug delivery vehicles. Professor Mark Borden hosted the summer school, and CU Boulder Instructors included Professors Todd Murray and Andrew Goodwin. In addition to lectures, practical laboratory sessions were held for hands-on demonstrations of microbubble synthesis and characterization.