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- W2943751401 abstract "Soft nanoparticles have attracted increasing attention in biomedical fields because of their unique biological behaviors such as long circulation and high cellular uptake. However, previously reported soft nanoparticles are generally spherical or torispherical in shape, and non-spherical soft nanoparticles are rarely reported because of the shape is thermodynamically unstable for typical soft materials (e.g., liposomes and micelles). Herein, soft mesoporous organosilica nanorods with gold plasmonic core protected with poly-ethylene imine ([email protected]/PEI) have been successfully synthesized, for the first time, by a dispersive-protection etching method, in which rod-like solid mesoporous organosilicas with gold nanorod are firstly shielded with PEI ([email protected]/PEI) and then etched with aqueous NaOH solution. The prepared [email protected]/PEI inherits the rod morphology of the mother particle, showing wrinkled morphology and excellent dispersity thanks to the dispersive-protection effect of PEI. In addition, the [email protected]/PEI possesses a uniform size (174 × 105 nm), well-defined mesopores (3.9 nm), high surface area (355 m2/g) and large pore volume (0.35 m3/g). Notably, the soft [email protected]/PEI exhibits significantly lower Young’s modulus (120.2 MPa) in contrast with the hard counterpart (361.4 MPa). Furthermore, after being decorated with hyaluronic acid (HA), the soft [email protected]/PEI-HA exhibits excellent in vitro and in vivo biocompatibility. The soft [email protected]/PEI-HA has achieved 3-fold cellular uptake efficiency in contrast with the hard one, indicating great potential for biomedical applications. Taken together, this work reports the controllable synthesis of a soft mesoporous nanorod with high cellular uptake efficiency, providing a vital strategy for the synthesis of non-spherical soft nanoparticles and a new nanoplatform for various biomedical applications in future." @default.
- W2943751401 created "2019-05-09" @default.
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- W2943751401 date "2019-08-01" @default.
- W2943751401 modified "2023-10-16" @default.
- W2943751401 title "Soft mesoporous organosilica nanorods with gold plasmonic core for significantly enhanced cellular uptake" @default.
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- W2943751401 doi "https://doi.org/10.1016/j.jcis.2019.04.086" @default.
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