Mirai Medical has previously raised €1.8 million from angel investors. Now, the Galway-based cancer treatment start-up is in the middle of closing a new €2.5 million round. For founder Dr Declan Soden, closing the fundraising will be the cumulation of 15 years research, and the hard decision to quit a stable position in 2014 in order to concentrate on creating a better way to treat certain cancers. “I was fortunate to meet the late Professor Gerry O’Sullivan who had set up the cancer research centre at the Mercy hospital,” Soden explained, reflecting on why he started the business.  “He was…