Sernova Corp., of London, Ontario, said it completed a second closing of $2.25 million of its nonbrokered private placement, bringing the total amount raised to date to $4.58 million. The company said it is increasing the maximum offering, for a total of up to $5.5 million of units priced at 20 cents each and consisting of one common share and one common share purchase warrant exercisable into one share at 30 cents.