Solar‐Energy‐Driven Photoelectrochemical Biosensing Using TiO2 Nanowires. Issue 32 (11th May 2015)

• Record Type: Journal Article
• Authors: Tang, Jing; Li, Jun; Da, Peimei; Wang, Yongcheng; Zheng, Gengfeng
• Is Part Of: Chemistry. Volume 21:Issue 32(2015)
• Page Start: 11288
• Page End: 11299
• Publication Date: 2015-05-11
• Subjects: photoelectrochemistry -- nanowires -- sensitivity -- sensors -- TiO2; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201406643
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Photoelectrochemical sensing represents a unique means for chemical and biological detection, with foci of optimizing semiconductor composition and electronic structures, surface functionalization layers, and chemical detection methods. Here, we have briefly discussed our recent developments of TiO2 nanowire‐based photoelectrochemical sensing, with particular emphasis on three main detection mechanisms and corresponding examples. We have also demonstrated the use of the photoelectrochemical sensing of real‐time molecular reaction kinetic measurements, as well as direct interfacing of living cells and probing of cellular functions. Abstract : Expand your senses! The solar‐energy‐driven photoelectrochemical biosensing using 1D TiO2 nanowire arrays is discussed (see figure), with an emphasis on both optimizing semiconductor electronic structures and developing new sensing mechanisms. Representative examples are illustrated with each mechanism. The potential of using this sensing platform for direct interfacing and measurement of living cells is also demonstrated.