T2 Biosystems Inc. has raised $15 million from 9 different investors. The company plans to use the funding to accelerate development and commercialization for its diagnostic platform. The investment round was led by Physic Ventures. Other investors include Arcus Ventures, RA Capital Management LLC, Camros Capital LLC, WS Investments Company, Flagship Ventures, Polaris Venture Partners, Flybridge Capital Partners, and Partners Healthcare of Boston. T2 Biosystems raised $10.8 million in Series B financing two years ago. [Bizjournals]