选定具有高且广谱抑菌活性的化合物7b，以制备的纳米镁铝水滑石（MgAl

选定具有高且广谱抑菌活性的化合物7b，以制备的纳米镁铝水滑石（MgAl-LDH）作为载体，制备新型的载药复合物7b/MgAl-LDH。采用XRD、AFM和FE-SEM等技术对载体和载药复合物进行表征。对载药复合物体外pH控释性能进行研究，结果表明，复合物7b/MgAl-LDH-2在体积分数为10%的乙醇水溶液和酸性条件下具有优良的控释性能。

Select compound 7b with high and broad-spectrum antibacterial activity, and use the prepared nano magnesium aluminum hydrotalcite (MgAl LDH) as the carrier to prepare a new drug carrier complex 7b/MgAl LDH. XRD, AFM, and FE-SEM techniques were used to characterize the carrier and drug loading complex. The study on the pH controlled release performance of the drug loaded composite in vitro showed that the composite 7b/MgAl-LDH-2 had excellent controlled release performance in an ethanol aqueous solution with a volume fraction of 10% and acidic conditions.

Compound 7b with high and broad-spectrum antibacterial activity was selected, and the prepared nano-Mg-Al hydrotalcite (MgAl-LDH) was used as the carrier to prepare a new drug-loaded complex 7b/MgAl-LDH. XRD, AFM and FE-SEM were used to characterize the carrier and drug-loaded complex. In this paper, the controlled release properties of drug-loaded composite in vitro were studied. The results showed that the composite 7b/MgAl-LDH-2 had excellent controlled release properties in 10% ethanol aqueous solution and acidic conditions.