All hotels are situated in the city center of Uppsala, and so is the venue for dinner. Walking distance for all.
Ångström laboratory is situated 2.5 km outside the city centre. You reach the lab easy by local bus no 4 to Polacksbacken. Timetable: https://www.ul.se/en/travel-info/timetables/timetables/ Bus No 4 direction Gottsunda Östra. (Polacksbacken is between Akademiska Sjukhuset and Lundellska Skolan.)
There are also nice walking paths if you prefer this. (see the Map of Uppsala tab)
If you prefer taxi, you can use Taxi Uppsala: tel +46-18-10 00 00.
There will be no arranged transport to and from the conference venue at Ångström.