West Berlin, N.J.-based Dynasil Corp. of America, a maker of specialized instruments and products for the medical, industrial and homeland security/defense markets, announced today that Dr. Michael Joyner of the Mayo Clinic and David Kronfeld of JK&B Capital of Chicago have been nominated for election to its board. The election will take place at Dynasil’s annual meeting on Feb. 3, 2010. Joyner serves as associate dean for research at Mayo Clinic in Rochester, Minn., where he also is deputy director for research, associate program director of the Center of Translational Science Activities and a consultant to the department of anesthesiology. He has held editorial positions for key journals, served as an NIH study section member, and received numerous national and international awards for his work on muscle blood flow and human physiology. Kronfeld founded JK&B Capital, a venture capital firm focused on the software, IT and communications markets. Before that, he held executive positions with other venture capital firms. In addition, Kronfeld was a senior manager at Booz Allen & Hamilton and a systems analyst at Electronic Data Systems (EDS). He has been a director of four public and more than 30 private company boards.