Table 2
Insulin secretion of cells (μU/mL)
	L-glucose	L-glucose	H-glucose	H-glucose
	(30 min)	(1 h)	(30 min)	(1 h)
Normal human pancreatic β cells	9.25 ± 1.14	9.65 ± 1.12	23.43 ± 4.12	25.81 ± 2.57
IPCs	0.46 ± 0.04	1.01 ± 0.11	1.20 ± 0.13	1.50 ± 0.23

L, low; H, high.

Shi et al. Nanoscale Research Letters 2013 8:90   doi:10.1186/1556-276X-8-90