看一些国外文献，比如Fifty milligrams of HMSs was mixed with 6 mL of DOX solution in PBS (0.5 mg/mL). After stirring for 24 h under dark conditions, the DOX-loaded particles were centrifuged and washed with PBS...想请教一下，纳米装载药物时需要搅拌过夜，我看实验室一般恒温磁力搅拌器搅拌的溶液量都很大，如果纳米和药物用量都很小，总溶液量5、6mL时候，需要什么样磁力搅拌器可以办到呢，或者什么操作方法可以做到呢，想请教一下。
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