IMAGE2 (IMAGE)
Caption
Different materials allow substances to pass through their narrow channels based on the size of the substance compared to the channel opening and whether the material is rigid or flexible.
Credit
H Sakamoto , K Otake & S Kitagawa
Usage Restrictions
Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.
License
CC BY-NC-ND