Uniform hierarchical silica film with perpendicular macroporous channels and accessible ordered mesopores for biomolecule separation

作     者：Xiaodan Su Jun Tao Sui Chen Peng Xu Dan Wang Zhaogang Teng 

作者机构：Key Laboratory for Organic Electronics&Information Displays and Institute of Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210046China Department of Medical ImagingJinling HospitalSchool of MedicineNanjing UniversityNanjing 210002China College of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China Department of Gynecology&ObstetricsAffiliated Changzheng HospitalThe Second Military Medical UniversityShanghai 200003China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2019年第30卷第5期

页      面：1089-1092页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

基　　金：the financial support from the Natural Science Foundation of Jiangsu Province(No.BK20160017) the National Natural Science Foundation of China(No.21603106) 

主　　题：Silica Film Macroporous Mesoporous Separation 

摘      要：Herein, we demonstrate that silica films with perpendicular macroporous channels and accessible ordered mesopores can be conveniently prepared. The hierarchical macroporous–mesoporous silica films are synthesized by using zinc oxide nanorod array as macroporous template and CTAB surfactant as mesoporous template. In basic surfactant-containing solution, ordered mesoporous silica shells homogeneously grow on the zinc oxide nanorod array. The growth of the mesostructures do not require any chemical modification for the zinc oxide nanorod, which opens a new way for preparing hierarchical silica films with perpendicular mesochannels. The prepared hierarchical macroporous–mesoporous silica films possess a uniform thickness of 2μm, large perpendicular macropores with a length of 1.8μm and a width of 80 nm, and accessible ordered mesopores. Separation experiment demonstrates that this macroporous–mesoporous film can effectively separate biomolecules with different sizes.