Degradation‐Restructuring Induced Anisotropic Epitaxial Growth for Fabrication of Asymmetric Diblock and Triblock Mesoporous Nanocomposites

• DOI: 10.1002/adma.201701652
• Publication Date: 2017-06-12T12:12:44Z
• Authors: Xiaomin Li; Tiancong Zhao; Yang Lu; Peiyuan Wang; Ahmed Mohamed El‐...; Fan Zhang; Dongyuan Zhao
• Keywords: Nanorod; Mesoporous organosilica

A novel degradation‐restructuring induced anisotropic epitaxial growth strategy is demonstrated for the synthesis of uniform 1D diblock and triblock silica mesoporous asymmetric nanorods with controllable rod length (50 nm to 2 µm) very high surface area 1200 m g −1 . The nanocomposites are composed a organosilicate nanorod highly ordered hexagonal mesostructure, closely connected dense SiO nanosphere located only on one side nanorods. Furthermore, constituted by cubic mesostructured nanocube, radial mesopores, can also be fabricated mesopores. Owing ultrahigh area, unique mesochannels, functionality asymmetry, obtained match‐like Au‐NR@SiO &EPMO (EPMO = ethane bridged periodic organosilica) used as an ideal nanocarrier near‐infrared photothermal triggered releasing drug molecules.