The Swede missed a great chance to score against his former club, but with Milan able to shut out the Catalan giants and prevent an away goal, Ibrahimovic remains in good spirits for the second leg at Camp Nou next week.
“We had some opportunities but, unfortunately, we were unable to score,” said Ibrahimovic to Sky Sport 24 after the match.
“However, the result is very good for us. I am optimistic for the second leg.”
Fellow forward Urby Emanuelson is also looking to move on quickly to the return leg, after spurning a great opportunity within seconds of his arrival as a substitute during the second half.
“My appearance was a bit unlucky," Emanuelson told NOS. "In my first action I could have scored but forgot the ball. That can happen.
"I know that was a very important moment, but what can I do about it right now after the match? Let's try better next time.
“I think we will get chances next week. Barcelona always play their own game, so we will have opportunities,”
The Dutchman was also relieved that his side were able to keep Lionel Messi at bay during the game, with the Argentine forward unable to add to his 12 Champions League goals in the current campaign.
“Messi played like Messi. He's always dangerous and never plays a bad match. We're glad he did not score tonight.”