The new year kicked off with good news from the U.S. FDA for Onconano Medicine Inc. The agency granted the company’s pH-sensitive fluorescent nanoprobe, pegsitacianine, breakthrough therapy designation for use as an adjunct for visualization of metastases in the peritoneal cavity.

Onconano Medicine Inc. raised around $50 million in series B financing to accelerate the momentum of its technology designed to diagnose and treat cancer with high specificity. The biotech company’s nanosensor works by reacting to low pH and illuminates cancer like a lightbulb, distinguishing cancerous tissue from healthy tissue.