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- W4310102561 abstract "Controlling the nanoparticle’s (NP) ability to facilitate cell uptake is particularly desirable for biomedical applications, such as drug delivery. Despite growing evidence highlighting the pivotal role of mechanical properties in biological performances of NPs, consensus regarding how stiffness regulates the cell entry of NPs is lacking. Here, we design and elucidate cell membrane wrapping on soft liposomes in which rigid bowl-like nanostructures are embedded. Compared with pure liposomes, which are often partially wrapped by a membrane due to the high energy barrier associated with the oblate deformation, embedded nanobowls provide physical support to promote wrapping by increasing the liposome rigidity. Through correlating liposome deformation, invagination, and nanobowl orientation, two distinct pathways of cell membrane wrapping on nanobowl-supported liposomes are identified. Different from alternative methods of tuning the rigidity of NPs uniformly, the nanobowl-supported liposome is characterized by mechanical heterogeneity and nanobowl rotation, which correlates with liposome deformation to promote endocytic wrapping. Once the nanobowl’s rotation is restrained, wrapping turns out to be accomplished via membrane protrusion rather than invagination, and the wrapped liposome could be trapped with frustrated internalization and potential membrane perturbation. Following this principle, moderate decreases of the nanobowl size and adhesive strength with the liposome can facilitate the nanobowl’s rotation to promote cell uptake. These results are expected to improve our ability to develop better NPs for enhanced drug delivery." @default.
- W4310102561 created "2022-11-30" @default.
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- W4310102561 date "2022-11-28" @default.
- W4310102561 modified "2023-10-16" @default.
- W4310102561 title "Computational Study on the Regulatory Mechanism of Cell Membrane Wrapping on Liposomes by Embedded Bowl-like Nanostructures for Drug Delivery" @default.
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- W4310102561 doi "https://doi.org/10.1021/acsanm.2c04177" @default.
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