^pof;
Physical;
Biology,;
Shanghai;
Institute;
of;
Applied;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Shanghai;
201800,;
China;
^pNano;
&;
Soft;
Materials;
Laboratory,;
Soochow;
University,;
Suzhou;
215123,;
China;
graphene; oxide; gold; nanoparticles; nanocomposite; Michael; addition; reaction;