. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Exp Eye Res. 2012 Apr 28;100:32–39. doi: 10.1016/j.exer.2012.04.003

Table 1.

Lipid phase transition parameters Cooling Curve

Phase transition parameter	Palmityloleate	Palmityloleate and Keratin	Significance (p)	Palmityloleate & β-carotene	Significance (p)
Minimum frequency (cm⁻¹)	2849.3 ± 0.3	2849.1 ± 0.4	0.70	2848.9 ± 0.3	0.24
Maximum frequency (cm⁻¹)	2854.0 ± 0.3	2853.4 ± 0.2	0.091	2853.4 ± 0.1	0.60
Cooperativity	−97 ± 41	−74 ± 31	0.65	87 ± 36	0.66
Phase transition temperature (°C)	16.52 ± 0.07	16.80 ± 0.09	0.019^*	16.01 ± 0.09	>0.0001^*

statistically significant, p < 0.05.