Figure 1. Schematic diagram of the diffusion chambers.
Figure 2. SEM micrographs of the MPC-BA coated (a) and noncoated (b) PU tubing after circulating in BBS solution for 50 h and bovine serum albumin for 1 h.
Figure 3. SEM micrographs of the MPC-BA coated (a) and noncoated (b) PU tubing after insertion in rat blood in vivo for 2 h.
Figure 4. The plot of insulin concentration against the diffusion time in response to a 20 mM glucose challenge in the rat islets.
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