Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=diphenylalanine<.>)

Общее количество найденных документов : 4
Показаны документы с 1 по 4

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zelenovskiy P., Davydov A., Vasilev S., Nuraeva A., Ryan K., Krylov A. S., Wojtas M., Shur V. Y., Kholkin A. I.
Заглавие : DSC and Raman study of phase transitions in diphenylalanine nanotubes
Коллективы : International conference on advanced vibrational spectroscopy at TU wien
Место публикации : The 8th International Conference on Advanced Vibrational Spectroscopy at TU Wien: abstracts. - 2015. - P.54. - ISBN 978-3-200-04205-6
Материалы конференции
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zelenovskiy P. S., Davydov A. O., Krylov A. S., Kholkin A. L.
Заглавие : Raman study of structural transformations in self-assembled diphenylalanine nanotubes at elevated temperatures
Коллективы : International GeoRAMAN Conference
Место публикации : J. Raman Spectrosc. - 2017. - Vol. 48, Is. 11. - P.1401-1405. - ISSN 0377-0486, DOI 10.1002/jrs.5084. - ISSN 1097-4555(eISSN)
Примечания : Cited References:50. - The equipment of the Ural Center for Shared Use 'Modern nanotechnology' UrFU was used. The research was supported by the President of Russian Federation grant for young scientists (Contract 14.Y30.15.6554-MK) and by the Government of the Russian Federation (Act 211, Agreement 02.A03.21.0006). A.K. acknowledges the Turkish-Portuguese project TUBITAK/0006/2014 and CICECO-Aveiro Institute of Materials (Ref. FCT UID/CTM/50011/2013) financed by national funds through the FCT/MEC and, when applicable, co-financed by FEDER under the PT2020 Partnership Agreement.
Предметные рубрики: PEPTIDE NANOTUBES
PIEZOELECTRIC PROPERTIES
WATER
MICROTUBES
Ключевые слова (''Своб.индексиров.''): peptide nanotubes--diphenylalanine--phase transition--cyclization--water
Аннотация: Self-assembled peptide diphenylalanine (NH2-Phe-Phe-COOH, FF) is one of the most important emergent functional materials, demonstrating wide range of fascinating physical and chemical properties including biocompatibility, chemical variability, exceptional rigidity, outstanding piezoelectric, pyroelectric and ferroelectric responses. Up to now, the phase transitions in FF nanotubes were investigated by scanning and transmission electron microscopy, atomic force microscopy, differential scanning calorimetry, thermogravimetry and mass spectroscopy. The Raman spectroscopy was implemented at room temperature only, and the microscopic details of these transitions remained unknown. In this work, the structural transformations in FF nanotubes at elevated temperatures (up to tubes destruction at 160 °C) were studied by Raman spectroscopy. Two structural transformations were observed in this region: hexagonal to orthorhombic transition at about 100 °C and the cyclization of FF molecules at about 150 °C. For the first time, these transformations were considered in the context of reconstruction of the water subsystem in the nanotubes, thus demonstrating the strong relation between the peptide tube and the state of the water inside. Using an effective frequency of nanotubes' lattice vibrations, we found that many effects observed earlier by other methods are induced by the variation of the water subsystem. The analysis of certain lines in the middle part of the Raman spectrum allowed us to describe the microscopic details of FF molecule cyclization. These results improve the understanding of the role of water in the origin of outstanding properties of FF nanotubes and thus promote developing new functional devices on their basis.
Смотреть статью,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krylov A. S., Krylova S. N., Kopyl S., Kholkin A.
Заглавие : Non-hydrostatic pressure-induced phase transitions in self-assembled diphenylalanine microtubes
Коллективы : [TUBITAK/0006/2014]
Место публикации : Tech. Phys. - 2018. - Vol. 63, Is. 9. - P.1311-1315. - ISSN 1063-7842, DOI 10.1134/S1063784218090098. - ISSN 1090-6525(eISSN)
Примечания : Cited References: 17. - This study was supported by the Turkish-Portuguese project no. TUBITAK/0006/2014.
Предметные рубрики: PEPTIDE NANOTUBES
CRYSTAL
Аннотация: The structural phase transitions in diphenylalanine microtubes caused by an increase in the non-hydrostatic pressure have been examined. Raman scattering investigations have been carried out and the results obtained have been interpreted and analyzed. Spectral variations in the ranges of phenyl ring vibrations and high-frequency oscillations of NH and CH groups have been analyzed. Under pressures of up to 9.8 GPa, four spectral anomalies indicative of the occurrence of phase transitions have been observed. The transitions under pressures of 1.7 and 4 GPa are shown to be reversible. The transition at 5.7 GPa is accompanied by partial sample amorphization.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krylov A. S., Krylova S. N., Kopyl, Svitlana, Krylov A. S., Salehli, Ferid, Zelenovskiy, Pavel, Vtyurin A. N., Kholkin, Andrei
Заглавие : Raman spectra of diphenylalanine microtubes: polarisation and temperature effects
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-02-00754]; Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115F227]; project Portugal-Turkey [TUBITAK/0006/2014]; FCT/MEC [UIDB/50011/2020, UIDP/50011/2020]; FCT (Portugal) through the project "BioPiezo" [PTDC/CTM-CTM/31679/2017 (CENTRO-01-0145-FEDER-031679)]; national funds (OE), through FCT-Fundacao para a Ciencia e a Tecnologia, I.P.
Место публикации : Crystals. - 2020. - Vol. 10, Is. 3. - Ст.224. - ISSN 2073-4352, DOI 10.3390/cryst10030224
Примечания : Cited References: 43. - This research was funded by the Russian Foundation for Basic Research grant number 18-02-00754, F.S. thanks Scientific and Technological Research Council of Turkey for support under Grant Number 115F227. S.Kopyl and A.Kholkin thank the joint project Portugal-Turkey TUBITAK/0006/2014. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, refs. UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the FCT/MEC. S.Kopyl, P.Z. and A.Kholkin were partly supported by FCT (Portugal) through the project "BioPiezo"-PTDC/CTM-CTM/31679/2017 (CENTRO-01-0145-FEDER-031679). Part of this work was funded by national funds (OE), through FCT-Fundacao para a Ciencia e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5, and 6 of the article 23, of the Decree-Law 57/2016, of 29 August, changed by Law 57/2017, of 19 July.
Предметные рубрики: PIEZOELECTRIC PROPERTIES
PHASE-TRANSITIONS
SPECTROSCOPY
SCATTERING
Аннотация: Diphenylalanine microtubes have remarkable physical properties that allow one to use them in electronics. In this work, we measured polarised temperature-dependent Raman spectra in self-assembled diphenylalanine microtubes grown from the solution. We observed the anomalous temperature behaviour of the Raman lines. Their temperature changes were minimal, which required a significant improvement in the resolution and stability of Raman measurements. The anomalies in the behaviour of the spectra at about 178 K, 235 K, 255 K, 278 K, 296 K, 398 K and 412 K were observed. The structural phase transition at 398 K is irreversible. This transition is associated with the release of water molecules from nanochannels. The irreversible phase transition has a temperature range of about 10 K.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие