Mouse Islet of Langerhans Isolation using a Combination of Purified Collagenase and Neutral Protease by Jessica Helweg | Jan 8, 2019 Stull, Natalie & Breite, Andrew & Mccarthy, Robert & Tersey, Sarah & Mirmira, Raghavendra. (2012). Mouse Islet of Langerhans Isolation using a Combination of Purified Collagenase and Neutral Protease. Journal of visualized experiments : JoVE. 10.3791/4137.