Abstract
Pancreatic cancer is a malignant tumor model with high mortality. Many patients are ineligible for surgical resection once diagnosed; therefore, it is important to explore more safe and effective treatment options. This study was designed to determine the therapeutic effect of reduced graphene oxide combined with the near-infrared laser in animal pancreatic cancer. The results showed that reduced graphene oxide has strong light absorption ability between 600 and 1100 nm detected by spectrophotometer. Experimental results of different concentrations of reduced graphene oxide solution under 980-nm laser irradiation at different powers showed that the enhancement of the photothermal conversion effect of reduced graphene oxide depends on reduced graphene oxide concentration and light dose. In vivo experiments showed that higher laser dose (0.75 W/cm2) combined with higher reduced graphene oxide concentration (2 mg/kg) can achieve higher treatment temperature and slower tumor growth. These results suggest that reduced graphene oxide combined with the 980-nm laser in the treatment of mouse pancreatic cancer can get an ideal thermal killing effect, with the clinical potential of pancreatic cancer treatment.
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