Figure 2.

(A) The xenograft tumor model was established by subcutaneous injection of BGC-823 gastric cancer cells in mice. DOX/SWNT-GEL was injected into the tumor, and then the mice received NIR laser irradiation at the tumor site; (B) DOX release curve of SWNT-GEL in PBS for 28 days at a constant temperature of 43 °C; (C) tumor growth rate of mice treated with different methods and NIR radiation; (D) tumor growth rate of mice with different treatments without NIR radiation. Data was presented as mean ± SD (* indicates p < 0.05 and ** denotes p ≤ 0.01, compared with DOX/SWNT-GEL/NIR or DOX/SWNT-GEL group). Reproduced with permission from ref. [78] Copyright (2015). Wiley-VCH Verlag.