BD培养基 211643 500 g EA BBL Standard Methods Agar with Lecithin and Polysorbate 80 含卵磷脂和聚山梨醇酯80标准形式琼脂 
修饰性PEG
DSPE SH COOH MAL NH2 巯基 羧基 氨基 四臂 八臂PEG WAKO和光纯药
BD培养基 211643 500 g EA BBL Standard Methods Agar with Lecithin and Polysorbate 80 含卵磷脂和聚山梨醇酯80标准形式琼脂