An optical technique is developed by depositing graphene oxide( GO) onto a micro / nanofiber( MNF),which can act as a novel light-driven microheater based on the strong evanescent field from MNF and the photothermal property of GO. Excited by the low-power near-infrared light,GO-MNF is capable of initiating the phase transition of surrounding solvent( such as N,N-dimethylformamide,deionized water) to generate photothermal microbubbles. As a result,in the N,N-dimethylformamide,the microbubbles grows in a cer...