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AuthorYue, Qin
AuthorZhang, Yu
AuthorJiang, Yongjian
AuthorL, Jialuo
AuthorZhang, Hongwei
AuthorYu, Chengzhong
AuthorElzatahry, Ahmed A.
AuthorAlghamdi, Abdulaziz
AuthorDeng, Yonghui
AuthorZhao, Dongyuan
Available date2020-10-15T10:38:43Z
Publication Date2017
Publication NameJournal of the American Chemical Society
AbstractFunctional core-shell mesoporous microspheres with integrated functions, controlled structure, and surface properties and morphologies have received increasing attention due to their excellent physicochemical properties. Herein, core-shell magnetic mesoporous materials with cauliflower-like morphology and tunable surface roughness have been synthesized through a kinetics-controlled interface co-assembly and deposition of mesostructured nanocomposites on Fe3O4@RF microspheres (RF refers to resorcinol formaldehyde resin). The obtained microspheres, synthesized via this interface nanoengineering method, possess well-defined sandwich structure with a tunable rough morphology, uniform size (560-1000 nm), perpendicularly aligned mesopores (?5.7 nm) in the outer shell, RF-protected magnetic responsive core, high surface area up to 382 m2/g, and large pore volume of 0.66 cm3/g. As a result of the unique surface features and magnetic properties, these microspheres exhibit excellent performance in stabilizing and oxygen-free manipulating aqueous solutions in petroleum ether by a magnetic field. They also exhibit superior cell uptake properties compared with traditional smooth core-shell magnetic mesoporous silica microspheres, opening up the possible applications in fast drug delivery in cancer therapy.
SponsorThis work was supported by the State Key 973 Program of PRC (2013CB934104), the NSF of China (51372041, 51422202, 21673048, 21210004 and U1463206), the ?Shu Guang? Project (13SG02) supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation, the National Youth Top-Notch Talent Support Program in China. Yu CZ thanks the Australian Research Council, Australian National Fabrication Facility and the Australian Microscopy and Microanalysis Research Facility at the Centre for Microscopy and Microanalysis, Centre for Advanced Imaging for support. The authors extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP# 0094.
PublisherAmerican Chemical Society
SubjectMesoporous Microspheres
Tunable Surface Roughness
TitleNanoengineering of Core-Shell Magnetic Mesoporous Microspheres with Tunable Surface Roughness
Issue Number13
Volume Number139

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