Department of Cardiology, Howard Hughes Medical Institute, Manton Center for Orphan Disease, Children's Hospital Boston, Boston, Massachusetts 02115, USA.
Nano Lett. 2010 Jun 9;10(6):2211-9. doi: 10.1021/nl101157z.
Nanoparticle (NP)-mediated drug delivery typically relies on cargo release to occur passively or in response to environmental stimuli. Here we present a delivery method based on light-activated disruption of intracellular vesicles after internalization of biofunctionalized mesoporous silica nanoparticles loaded with cargo. This method combines the power of targeted delivery with the spatiotemporal control of light activation. As an example, we delivered a cell-impermeable fluorescent compound exclusively to the cytosol of multidrug resistant cancer cells in a mixed population.
纳米颗粒(NP)介导的药物输送通常依赖于货物的被动释放或对环境刺激的响应。在这里,我们提出了一种基于生物功能化介孔二氧化硅纳米颗粒负载货物内化后用光激活破坏细胞内囊泡的递药方法。该方法将靶向递药的威力与光激活的时空控制相结合。例如,我们将一种细胞不可渗透的荧光化合物递送到混合群体中的多药耐药癌细胞的细胞质中。