Solved by verified expert:there are 2 question and i think everything u need will be as hint in the question let me know if u need the lecture note to be post
hw_5.pdf
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BME 201
Found. of BME
Fall 2017
HW #5
Due Wednesday, November 15
Name:
1. You may work together but each person should turn in his/her own work in his/her own
handwriting.
Problems
#1
(10 pts) _____________
#2
(10 pts) _____________
/20
Total: _______________
1. Drug Delivery
[10 pts]
A transdermal drug delivery system is being developed in your company’s laboratory. The device
consists of a 1 cm2 polymer membrane (thickness = 200 µm) that separates the drug reservoir from the
skin. If the drug reservoir contains 3
of drug that has diffusion coefficient D = 4×10-7
maximum rate of drug delivery for this device? Display final answer
Hint 1: rate of delivery = Area x Flux
Hint 2: Flux =
in .
2
,
what is the
( 2 − 1 )
∆
Hint 3: 1 mL = 1 cm3
Hint 4: 1 cm = 1×104 µm
Hint 5: 1 day = 86,400 s
Hint 6: come on, five hints isn’t enough??
2. Tissue Engineering
[10 pts]
Cells are being grown in culture for a skin allograft application. If 1,000 cells are harvested from the
biopsy, and the doubling time for the cell population (tD) is 1 day, how many cells do we have after 7
days?
Hint: =
ln(2)
…
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