| GOP | Graphene oxide+PEG |
| GOP-PCA | Graphene oxide+PEG+protocatechuic acid |
| GOP-PCA-FA | Graphene oxide+PEG+protocatechuicacid+folic acid |
| DAPI | 4,6-diamidino-2-phenylindole dihydrochloride |
| FITC | fluorescein 5(6)-isothiocyanate |
| GOP | Graphene oxide+PEG |
| GOP-PCA | Graphene oxide+PEG+protocatechuic acid |
| GOP-PCA-FA | Graphene oxide+PEG+protocatechuicacid+folic acid |
| DAPI | 4,6-diamidino-2-phenylindole dihydrochloride |
| FITC | fluorescein 5(6)-isothiocyanate |