SERS of Trititanate Nanotubes: Selective Enhancement of Catechol Compounds

Ruochen Liu; Edmund Morris; Xiaorong Cheng; Eric Amigues; Kim Lau; Baekman Kim; Yuanhang Liu; Zhipeng Ke; Sharon E. Ashbrook; Michael Bühl; Graham Dawson

doi:10.1002/slct.201801781

SERS of Trititanate Nanotubes: Selective Enhancement of Catechol Compounds

Ruochen Liu, Edmund Morris, Xiaorong Cheng, Eric Amigues, Kim Lau, Baekman Kim, Yuanhang Liu, Zhipeng Ke, Sharon E. Ashbrook, Michael Bühl, Graham Dawson^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The surface enhanced Raman scattering of trititanate nanotubes (TiNT) modified with enediol ligands was investigated and it was found that the functional group dramatically affects the enhancement observed. For TiNT-4-nitrocatechol, a SERS enhancement is seen; however, when dopamine is attached, no signal is seen. The relative band gap positions upon 785 nm laser excitation are proposed to explain the observed phenomenon. This attachment is investigated by solid state NMR and UV/Vis spectroscopy and supported by DFT calculations to offers further insights into catechol coatings of nanomaterials and SERS by the chemical method. We expect this non noble metal containing composite material to have applications in bioimaging and bio and chemical detection.

Original language	English
Pages (from-to)	8338-8343
Number of pages	6
Journal	ChemistrySelect
Volume	3
Issue number	28
DOIs	https://doi.org/10.1002/slct.201801781
Publication status	Published - 31 Jul 2018

Keywords

SERS
nanotubes
surface modification

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10.1002/slct.201801781

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title = "SERS of Trititanate Nanotubes: Selective Enhancement of Catechol Compounds",

abstract = "The surface enhanced Raman scattering of trititanate nanotubes (TiNT) modified with enediol ligands was investigated and it was found that the functional group dramatically affects the enhancement observed. For TiNT-4-nitrocatechol, a SERS enhancement is seen; however, when dopamine is attached, no signal is seen. The relative band gap positions upon 785 nm laser excitation are proposed to explain the observed phenomenon. This attachment is investigated by solid state NMR and UV/Vis spectroscopy and supported by DFT calculations to offers further insights into catechol coatings of nanomaterials and SERS by the chemical method. We expect this non noble metal containing composite material to have applications in bioimaging and bio and chemical detection.",

keywords = "SERS, nanotubes, surface modification",

author = "Ruochen Liu and Edmund Morris and Xiaorong Cheng and Eric Amigues and Kim Lau and Baekman Kim and Yuanhang Liu and Zhipeng Ke and Ashbrook, {Sharon E.} and Michael B{\"u}hl and Graham Dawson",

note = "Publisher Copyright: {\textcopyright} 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2018",

month = jul,

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T1 - SERS of Trititanate Nanotubes

T2 - Selective Enhancement of Catechol Compounds

AU - Liu, Ruochen

AU - Morris, Edmund

AU - Cheng, Xiaorong

AU - Amigues, Eric

AU - Lau, Kim

AU - Kim, Baekman

AU - Liu, Yuanhang

AU - Ke, Zhipeng

AU - Ashbrook, Sharon E.

AU - Bühl, Michael

AU - Dawson, Graham

PY - 2018/7/31

Y1 - 2018/7/31

N2 - The surface enhanced Raman scattering of trititanate nanotubes (TiNT) modified with enediol ligands was investigated and it was found that the functional group dramatically affects the enhancement observed. For TiNT-4-nitrocatechol, a SERS enhancement is seen; however, when dopamine is attached, no signal is seen. The relative band gap positions upon 785 nm laser excitation are proposed to explain the observed phenomenon. This attachment is investigated by solid state NMR and UV/Vis spectroscopy and supported by DFT calculations to offers further insights into catechol coatings of nanomaterials and SERS by the chemical method. We expect this non noble metal containing composite material to have applications in bioimaging and bio and chemical detection.

AB - The surface enhanced Raman scattering of trititanate nanotubes (TiNT) modified with enediol ligands was investigated and it was found that the functional group dramatically affects the enhancement observed. For TiNT-4-nitrocatechol, a SERS enhancement is seen; however, when dopamine is attached, no signal is seen. The relative band gap positions upon 785 nm laser excitation are proposed to explain the observed phenomenon. This attachment is investigated by solid state NMR and UV/Vis spectroscopy and supported by DFT calculations to offers further insights into catechol coatings of nanomaterials and SERS by the chemical method. We expect this non noble metal containing composite material to have applications in bioimaging and bio and chemical detection.

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KW - surface modification

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SERS of Trititanate Nanotubes: Selective Enhancement of Catechol Compounds

Abstract

Keywords

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