Distinctly Different Chemical Functionalities on the Internal and the External Surfaces of Silica Nanotubes, and Their Applications as Multi‐Chemosensors | Zendy

Seo Sungmin | Zendy; Lee Ji Ha | Zendy; Cho Youngje | Zendy; Kim JinGyu | Zendy; Kim Changyeon | Zendy; Jung Jong Hwa | Zendy

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Distinctly Different Chemical Functionalities on the Internal and the External Surfaces of Silica Nanotubes, and Their Applications as Multi‐Chemosensors

Author(s) -

Seo Sungmin,

Lee Ji Ha,

Cho Youngje,

Kim JinGyu,

Kim Changyeon,

Jung Jong Hwa

Publication year - 2011

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201100011

Subject(s) - azobenzene , nanotechnology , materials science , fluorescence , computer science , chemical engineering , chemistry , organic chemistry , optics , physics , molecule , engineering

Inside and out : The external and internal surface of silica nanotubes (SNTs) can be independently modified by a sol–gel grafting reaction. The azobenzene‐based ligands on the external surface recognize Hg 2+ through a color change, whereas the BODIPY‐based ligands attached to the internal surface recognize Pb 2+ through fluorescence enhancement. Thus, the modified SNTs selectively recognize both Hg 2+ and Pb 2+ (see figure).

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