title: Biotemplated hierarchical porous material: the positively charged leaf.
abstract: Addressing the problem of pathogenic bacteria in human health remains a great challenge. We have prepared MgO, replicated from the leaf template, for efficient bacterial removal. The synthesis method perfectly inherits the advantage of the hierarchical three-level micro-meso-macroporous structure from the leaf template. The final product has the integrated advantages of a positively charged property, hierarchical three-level micro-meso-macroporous microstructure and sterilization property so that it could be named "the positively charged leaf". The positively charged leaf with the microstructure, which is bestowed by Nature, could be utilized in water purification for dye removal and could be extended to pollutant removal, especially of harmful bacteria. The positively charged leaf, as the leaf shield, could be useful in protecting human health. The concept of this work could be applied to the synthesis of different functional metal oxides with hierarchical porous structures, and the products could be utilized in efficient bacterial removal.
authors.affiliation: State Key Lab of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai 200240, PR China.
authors.forename: Dalong
authors.initials: D
authors.lastname: Yang
authors.forename: Tongxiang
authors.initials: T
authors.lastname: Fan
authors.forename: Di
authors.initials: D
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Zhu
authors.forename: Yun
authors.initials: Y
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Du
authors.forename: Yaxian
authors.initials: Y
authors.lastname: Yan
mesh_terms: D004396:Coloring Agents; D004926:Escherichia coli / Q000254:growth & development / Q000472:pathogenicity*; D006801:Humans; D008277:Magnesium Oxide / Q000138:chemical synthesis* / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D018515:Plant Leaves / Q000033:anatomy & histology* / Q000737:chemistry; D016062:Porosity; D018508:Water Purification
chemical_list: D004396:Coloring Agents; D008277:Magnesium Oxide