Emery said the pair returned to training with the team on Tuesday, but Ozil missed a session on Wednesday through illness.
"Their mentality is focused on us, for training and the match," Emery said. "My focus is to be positive and think the players are 100 percent with their mind here."
"Each training gives us good information, different options with them. Am I pleased to have them back? Of course."
When asked whether footballers need to have private security, Emery said: "The club is working and helping them about that. I am helping them in the training and preparation."
Ozil and his wife Amine Gulse were unharmed after the attempted carjacking. The incident occurred when the two were pulling up to Kolasinac's home, a source told ESPN FC, when two assailants approached the car brandishing knives.
Record signing Nicolas Pepe, who arrived from Lille for €80 million earlier this month, made his debut off the bench against Newcastle, and Emery said the forward could make his first start when they play Burnley at home on Saturday.