Cherry Murray, dean of Harvard's School of Engineering and Applied Sciences, launched Xfund in January and its "experiments underway" include Rock Health, Tivli, Omada and QED.

The US-based Experiment Fund (Xfund), a seed-stage investment fund for the Boston area including spin outs from Harvard University and Massachussetts Institute of Technology (MIT), has added further advisers and venture capitalists to its roster.

Jim Breyer, whose personal stake in social network Facebook has been estimated at about 1%, has joined Xfund through his personal investment vehicle, Breyer Capital, as well as venture capital (VC) firm, Accel Partners. Along with VC firm Polaris Venture Partners, they join peer New…