Fig. 1From: Artificial ovaries constructed from biodegradable chitin-based hydrogels with the ability to restore ovarian endocrine function and alleviate osteoporosis in ovariectomized miceStructure and viability of the follicles. (a) Schematic illustration of in vitro culture. (b) Light microscopy images of isolated follicles. (c) Isolated follicle stained with hematoxylin and eosin. (d) Follicular viability assessment by staining with calcein-AM and ethidium homodimer-IBack to article page