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1 0 - 1 0 . Experience has shown that the silicone membrane used in breast implants leaks the silicone fluid contained within to the

10-10. Experience has shown that the silicone membrane used in breast implants leaks the silicone fluid contained within to the surrounding tissue. Calculate the amount of leakage in a year. Assume that the leakage is entirely by diffusion rather than by macroscopic pores. Assume the silicone oil has a molecular weight of 740 amu. Assume the membrane is 1mm thick and the surface area is 400cm2. The membrane has a diffusion constant of D=510-17cm2sec. Assume, moreover, that the implant has a volume of 500cm3 and a density of =1.2gcm3. Discuss other ways that silicone fluid or gel could escape. Discuss the implications.
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