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. 2017 May 4;12(5):e0177049. doi: 10.1371/journal.pone.0177049

Fig 5. The cumulative release curves and thermal stability of DDP.

Fig 5

(A) The DDP cumulative release curves with exposure to AMF for 0 s, 10 s, and 30 s at the time points of 2 h and 8 h, respectively, or without exposure to AMF. (B) UV-vis-NIR absorbance spectrum of DDP aqueous solution (20°C), DDP aqueous solution (80°C, 15 min), and DDP aqueous solution (80°C, 30 min). The maximum absorption peak of DDP aqueous solution remained the same at temperatures of 20°C, 80°C for 15 min, and 80°C for 30 min.