11. He also noted that a thin film of oil behaves as a semipermeable membrane , precisely as predicted. 12. Reverse osmosis systems used pressure to force water through a semipermeable membrane ; the tiny openings in the membrane separate contaminants. 13. The interesting features of these particles were that they were enclosed in a semipermeable membrane , like the typical cell membrane. 14. Diffusion of crude natural gas through special semipermeable membranes and other barriers is another method to recover and purify helium. 15. The diaper can absorb a huge amount of water by osmosis, in which the semipermeable membrane is the polymer itself. 16. A semipermeable membrane is necessary because it allows water through its membrane while preventing solutes from moving through its membrane. 17. The principle of hemodialysis is the same as other methods of dialysis; it involves diffusion of solutes across a semipermeable membrane . 18. Procter & Wilson ( 1916 ) demonstrated that gels, which do not have a semipermeable membrane , would swell in dilute solutions. 19. Once inserted into the tissue or ( body ) fluid of interest, small solutes can cross the semipermeable membrane by passive diffusion. 20. In peritoneal dialysis, wastes and water are removed from the blood inside the body using the peritoneum as a natural semipermeable membrane .
