Question

To achieve proper cell and tissue growth, a tissue-engineered product must accommodate blood flow similar to that of the native tissue. Without blood flow to deliver oxygen, glucose, and other essential nutrients while removing waste materials, the size of the implant is limited. A company develops a porous bone graft which permits glucose to flow into the interior. A 50 g/min buffer solution containing 5 mg/mL of glucose flows into the bone graft.

(a) What is the expected total mass flow rate and mass flow rate of glucose out of the system?

(b) Determine the total mass of glucose to flow through the bone graft in a 24 hour period.

(c) Laboratory results show the total outlet mass flow rate is 50 g/min. The outlet glucose mass flow rate is 225 mg/min. Make conjectures about what has happened in this experiment.

Answer 1