Five teams, including three from UMass Lowell, took part in the Innovation Hub’s inaugural Clean Green Challenge, a pitch contest focused on sustainability for entrepreneurs and startups from across the region.

Catnap, a device to sense when toddlers are about to have a nocturnal asthma attack, won the top prize at the Rist DifferenceMaker Institute’s 11th annual $50,000 Idea Challenge, held recently at University Crossing.

Catnap, a device designed to alert parents when their sleeping child is having an asthma attack, won the ninth annual DifferenceMaker Francis College of Engineering Prototyping Competition, held recently at University Crossing.

Solar Crowdfund, a platform that would let people invest money to fund large-scale solar projects, won the 10th annual DifferenceMaker Innovation Contest, sponsored by Digital Federal Credit Union and the Manning School of Business.