http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-1581(1998100)9:10/11%3C734::AID-PAT803%3E3.0.CO;2-J/abstract 6 i: Y9 z' [0 N9 @9 D3 S杂志:Polymers for Advanced Technologies Volume 9, Issue 10-11, pages 734–739, October - November 1998 x1 H+ t8 Y V4 {题目:Microencapsulation of islets and model beads with a thin alginate–ba2+ gel layer using centrifugation ; Z& ~, {4 |6 `- J6 H' h