Large-Scale, Ultrasensitive, Highly Reproducible and Reusable Smart SERS Platform Based on PNIPAm-Grafted Gold Grating; ChemNanoMat; Vol. 3, iss. 2
| Parent link: | ChemNanoMat Vol. 3, iss. 2.— 2017.— [P. 135-144] |
|---|---|
| Autor corporatiu: | |
| Altres autors: | , , , , , , , |
| Sumari: | Title screen A smart plasmonic sensor based on periodic gold gratings grafted with poly(N-isopropyl acrylamide) (PNIPAm) has been designed and realized. A periodic gold structure was created on the polymer backing with an excimer laser (1x2 cm2 modified area) and was subsequently covered by thin gold film. In the next step, a 7 nm thick PNIPAm layer was grafted to the gold surface through a two-step procedure: covalent attachment of 4-carboxybenzil groups followed by carboxyl groups activation and their coupling with amino-terminated PNIPAm. Surface properties of the prepared structure and their switchable behavior were investigated using refractometry, wettability measurements, AFM in water, cyclic voltammetry, and pH- and temperature-dependent Z-potential measurements. The structure enables effective entrapment and SERS detection of azo dyes, significant reduction of minimal detectable concentration of target molecules, and a detection limit down to femtomolar concentrations. Excitation of plasmons on the well-ordered surface structure also gives excellent reproducibility for SERS along the particular sample surface and as well as on different samples. Additionally, the reversible switching of wettability under repeated temperature changes on the gold plasmonic platform allows multiple uses of the developed system. |
| Idioma: | anglès |
| Publicat: |
2017
|
| Matèries: | |
| Accés en línia: | http://onlinelibrary.wiley.com/doi/10.1002/cnma.201600284/epdf |
| Format: | xMaterials Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655982 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 655982 | ||
| 005 | 20250522124050.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\22322 | ||
| 090 | |a 655982 | ||
| 100 | |a 20171016d2017 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a DE | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Large-Scale, Ultrasensitive, Highly Reproducible and Reusable Smart SERS Platform Based on PNIPAm-Grafted Gold Grating |f O. A. Guselnikova [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 143-144 (48 tit.)] | ||
| 330 | |a A smart plasmonic sensor based on periodic gold gratings grafted with poly(N-isopropyl acrylamide) (PNIPAm) has been designed and realized. A periodic gold structure was created on the polymer backing with an excimer laser (1x2 cm2 modified area) and was subsequently covered by thin gold film. In the next step, a 7 nm thick PNIPAm layer was grafted to the gold surface through a two-step procedure: covalent attachment of 4-carboxybenzil groups followed by carboxyl groups activation and their coupling with amino-terminated PNIPAm. Surface properties of the prepared structure and their switchable behavior were investigated using refractometry, wettability measurements, AFM in water, cyclic voltammetry, and pH- and temperature-dependent Z-potential measurements. The structure enables effective entrapment and SERS detection of azo dyes, significant reduction of minimal detectable concentration of target molecules, and a detection limit down to femtomolar concentrations. Excitation of plasmons on the well-ordered surface structure also gives excellent reproducibility for SERS along the particular sample surface and as well as on different samples. Additionally, the reversible switching of wettability under repeated temperature changes on the gold plasmonic platform allows multiple uses of the developed system. | ||
| 461 | |t ChemNanoMat | ||
| 463 | |t Vol. 3, iss. 2 |v [P. 135-144] |d 2017 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a gold grating | |
| 610 | 1 | |a plasmonic sensor | |
| 610 | 1 | |a PNIPAm | |
| 610 | 1 | |a surface enhanced Raman spectroscopy (SERS) | |
| 610 | 1 | |a surface grating | |
| 610 | 1 | |a плазменные датчики | |
| 610 | 1 | |a интеллектуальные платформы | |
| 610 | 1 | |a полимеры | |
| 610 | 1 | |a подложки | |
| 610 | 1 | |a золото | |
| 610 | 1 | |a пленки | |
| 610 | 1 | |a плазмоны | |
| 610 | 1 | |a возбуждение | |
| 701 | 1 | |a Guselnikova |b O. A. |c chemist |c Researcher at Tomsk Polytechnic University, Candidate of Chemical Sciences |f 1992- |g Olga Andreevna |3 (RuTPU)RU\TPU\pers\34478 |9 17861 | |
| 701 | 1 | |a Postnikov |b P. S. |c organic chemist |c Associate Professor of Tomsk Polytechnic University, Candidate of chemical sciences |f 1984- |g Pavel Sergeevich |3 (RuTPU)RU\TPU\pers\31287 |9 15465 | |
| 701 | 1 | |a Kalachyova |b E. |c chemical engineer |c assistant of Tomsk Polytechnic University |f 1987- |g Evgeniya |3 (RuTPU)RU\TPU\pers\39642 | |
| 701 | 1 | |a Kolska |b Z. |g Zdenka | |
| 701 | 1 | |a Libansky |b M. |g Milan | |
| 701 | 1 | |a Zima |b I. |g Irzhi | |
| 701 | 1 | |a Svorcik |b V. |g Vaclav | |
| 701 | 1 | |a Lyutakov |b O. |c chemist-technologist |c Associate Scientist of Tomsk Polytechnic University |f 1982- |g Oleksy |3 (RuTPU)RU\TPU\pers\36875 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет (ТПУ) |b Институт природных ресурсов (ИПР) |b Кафедра технологии органических веществ и полимерных материалов (ТОВПМ) |3 (RuTPU)RU\TPU\col\18659 |
| 801 | 2 | |a RU |b 63413507 |c 20171016 |g PSBO | |
| 850 | |a 63413507 | ||
| 856 | 4 | |u http://onlinelibrary.wiley.com/doi/10.1002/cnma.201600284/epdf | |
| 942 | |c CF | ||