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101 0 _aeng
102 _aGB
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aUltrasensitive and reproducible SERS platform of coupled Ag grating with multibranched Au nanoparticles
_fE. Kalachyova [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aSurface-enhanced Raman scattering (SERS) spectroscopy is an extremely sensitive analytical technique that is capable of identifying the vibration signatures of target molecules up to single-molecule sensitivity. In this work, the ultrahigh sensitivity of SERS has been achieved through the immobilization of sharp-edges specific nanoparticles – so-called gold multibranched NPs (AuMs) on the silver grating surface through the biphenyl dithiol. This approach allows combining the extremely high SERS enhancement factor (better than that in the case of AuMs immobilized on the flat Ag film) with perfect reproducibility of Raman signals. The grating was created on the polymer substrate using the excimer laser modification and further metal deposition and has an “active” area 5 ? 10 mm2, enabling the macroscale SERS substrate preparation. The wet-chemistry synthesized AuMs were then immobilized on the grating surface and the produced structure allows SERS measurements with a portable Raman spectrophotometer. The prepared structures were checked using the AFM, UV-Vis, and Raman spectroscopy techniques.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysical Chemistry Chemical Physics
_d1999-
463 _tVol. 19, iss. 22
_v[P. 14761-14769]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aкомбинационное рассеяние
610 1 _aспектроскопия
610 1 _aнаночастицы
701 1 _aKalachyova
_bE.
_cchemical engineer
_cassistant of Tomsk Polytechnic University
_f1987-
_gEvgeniya
_2stltpush
_3(RuTPU)RU\TPU\pers\39642
701 1 _aMares
_bD.
_gDavid
701 1 _aJerabek
_bV.
_gVitezslav
701 1 _aUlbrich
_bP.
_gPavel
701 1 _aLapcak
_bL.
_gLadislav
701 1 _aSvorcik
_bV.
_gVaclav
701 1 _aLyutakov
_bO.
_cchemist-technologist
_cAssociate Scientist of Tomsk Polytechnic University
_f1982-
_gOleksy
_2stltpush
_3(RuTPU)RU\TPU\pers\36875
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра технологии органических веществ и полимерных материалов (ТОВПМ)
_h6832
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801 2 _aRU
_b63413507
_c20171213
_gRCR
856 4 _uhttp://dx.doi.org/10.1039/C7CP01828B
942 _cCF