Fig. 2.

(A) NO release profiles of GO-BNN6 nanomedicine in PBS under the excitation of 808-nm NIR light with different power densities (0.2, 0.5 and 1 W/cm2) measured by using a Griess kit; (B) the NIR controllability of GO-BNN6 nanomedicine for NO release by switching on/off 808-nm NIR light.