The 29-year-old returned to action against Aston Villa after a period of over three months on the sidelines with a broken foot.
He is looking forward to playing more games in the Premier League and insists he has fully adapted to life in England.
He told Arsenal's official website: "The Premier League is something different, it's the best league in the world.
"It's hard to play in, the pace is different, the fact that almost every pitch is wet makes the ball run more, the tackles are harder, and it's just really good.
"I have totally adapted. I feel very well, people here have received me with open arms, and I mean everyone, the club, the staff and the fans.
"Now all I want is to make history with this club."
Santos wants to reward the fans who sent him messages of support during his recovery by finally ending the club's trophy drought.
He continued: "All of that gave me the strength to carry on, and it all just contributes to my desire to work hard for this club and win titles in the red shirt."
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