|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
Novel multilayer nanostructured materials for recognition of polycyclic aromatic sulfur pollutants and express analysis of fuel quality and environmental health by surface enhanced Raman spectroscopyстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 августа 2017 г.
- Авторы: Eremina O.E., Sidorov A.V., Shekhovtsova T.N., Goodilin E.A., Veselova I.A.
- Журнал: ACS applied materials & interfaces
- Том: 9
- Номер: 17
- Год издания: 2017
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 15058
- Последняя страница: 15067
- DOI: 10.1021/acsami.7b02018
- Аннотация: A novel concept of advanced SERS (surface enhanced Raman spectroscopy) planar sensors is suggested for fast analysis of sulfur-containing hazardous oil components and persistent pollutants. The main advantage of the proposed sensors is the utilization of an additional preconcentrating layer of optically transparent chitosan gel, which is chemically modified with appropriate π-acceptor compounds to selectively form charge-transfer complexes (CTCs) at the interface with nanostructured silver coatings. The CTCs shift absorption bands of polycyclic aromatic sulfur heterocycles (PASHs) and other important analytes in a controllable way and thus provide a surplus enhancement of vibration modes due to resonant Raman scattering. This novel indicator system provides multiplex determination of PASHs in different forms in a small volume of oil without any tedious sample pretreatment steps. This approach opens new possibilities of increasing either spectral and concentration sensitivity or specificity of SERS-based sensors, allowing for new developments in the fields of ecology, advanced fuel analysis, and other prospective applications.
- Добавил в систему: Еремина Ольга Евгеньевна