Table 4.

Optimization of Loading Capacity and Encapsulation Rate.The Loading Efficiency and Encapsulation Rate of GO-PEG Were Detected by HPLC, and Different Proportions of GO-PEG and OH30 Were Mixed to Obtain Better Loading Efficiency and Encapsulation Rate (Mean ± SD n = 3)

Ratio of OH30 and GO-PEG	Loading Efficiency(%)	Encapsulation Efficiency(%)
2mg/ml OH30+0.1mg/ml GO-PEG	80.83±0.49	20.47±2.45
2mg/ml OH30+0.4mg/ml GO-PEG	72.19±0.99	51.93±1.28
2mg/ml OH30+0.6mg/ml GO-PEG	70.18±0.93	77.87±2.22

Abbreviations: GO-PEG, PEGylated graphite oxide;OH30, OH-CATH30.