Synthesis of sevoflurane loaded reduced graphene oxide nanoparticles system for neuroprotective effects for preconditioning against focal cerebral ischaemia

In this study, sevoflurane (SF) loaded, Fas ligand conjugated reduced graphene oxide (rGO) system is fabricated as a therapeutic agent to target brain ischaemic region. The fluorescence investigation of mice brain denoted that the encapsulated SF in rGOs adsorbed with Fas ligand antibody could be significantly distributed to the ipsilateral side of the ischaemic brain. In addition, the immune-histochemical assay presented that the specific nanoparticles especially deposited in the ischaemic part of the tested mice model. Furthermore, SF encapsulated rGO system exhibited noticeable progress in the brain damage along with neurological deficit post ischaemia with limited dosages in contrast to regular SF. Additionally, Rhodamine labelled nanoparticles were used to find whether Fas ligand antibody has the ability to lead the SF-encapsulated nano rGO to enter the ischaemic part of brain as well as carry out neuro-protection. Overall, these experimental findings suggested that rGOs conjugated Fas ligand system could be treated as an ideal brain targeting drug for cerebral ischemia.