It would have been best if you’d immediately turned it off and left it off. You may very well have, at the least, ruined the oleophobic coatings on the glass screen.
I’m a Ph.D. Biologist (genomics, biostats and toxicology) and have been for over 30 years. While I don’t do lab work now I don’t understand bringing something personal like that into the lab bench? You wouldn’t chew on a pen or pencil you’ve handled in the lab, nor would you bring your lunch in to the lab bench but you’ll bring in your smartphone that you use right next to your face and mouth? At least thinking of chemicals I used when I was in the lab, and what I know our company’s lab people deal with currently in the lab, my smartphone would never cross the lab door threshold (and when I’m am over to our lab facility, mine never does).
Maybe I am just old school, but most labs have far more nasty stuff than high proof alchohols and I know I don’t even want to think of possible contamination of something I handle every day and use close to my face and mouth..