PEG–PEI-modified gated N-doped mesoporous carbon nanospheres for pH/NIR light-triggered drug release and cancer phototherapy

A hybrid nanoparticle consisting of N-doped mesoporous carbon nanospheres as core and thermosensitive PEG–PEI as outer shell shows multiple therapeutic actions such as PTT, PDT and NIR sensitive drug release under single 980 nm laser excitation.