Exploring the release rate of paclitaxel from a mesoporous silica nanoparticle, prior studies have employed various release mediums, such as PBS buffer, or PBS supplemented with Tween or SDS at varying ratios. I am intrigued by how paclitaxel, being highly hydrophobic, can dissolve in PBS (pH 7.4) without the aid of a surfactant. Can you elucidate the rationale behind selecting the optimal release medium, considering the notion that it should mimic the cellular environment?

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