Biotechnology was the hottest sector in venture capital in the first quarter of this year as investors poured in $7.1 billion in 778 deals, the highest level of funding for any quarter since late 2001, according to a study released Monday. Underscoring the expanding investor interest in life sciences, deals for companies making medical devices reached a record of $1.08 billion for 96 deals, a 60 percent jump from the level of funding in the fourth quarter of 2006. >>> Discuss This Story