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. 2019 Sep 14;19(18):3977. doi: 10.3390/s19183977

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Electrospun NP interfaces for photoelectronic semiconductor sensor: (a) Fabrication of hierarchically structured TiO₂ nanowires (TiO₂ NWs) on TiO₂-carbon (TiO₂/C) NFs suspended and aligned on carbon electrodes; (b) and (c) applications of hierarchically structured TiO₂ NWs-TiO₂/C NF suspended on a carbon-electrode-based electronic device as a ultraviolet (UV) and pH sensor [125], copyright 2014 American Chemical Society.