Table 1.

Analyses of degradation percentages and degradation rate coefficients for the HIDPPDNE-entrapped ICG and free ICG

Group	% ICG degradation	k d (h−1)
HIDPPDNE-entrapped ICG
4 °C in the dark	21.05%a	0.0049a
37 °C in the dark	39.84%a	0.0113a
Freely dissolved ICG in PBS
4 °C in the dark	44.21%	0.0121
37 °C in the dark	81.63%	0.0353

^a P < 0.05 as compared to the group with freely dissolved ICG under the same heating treatment