| Records |
| Author |
Tiulina, V.; Iomdina, E.; Goltsman, G.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Zaitsev, S.; Zernii, E.; Senin, I. |
| Title |
UVB promotes the initiation of uveitic inflammatory and changes in thehydration of the cornea in vivo |
Type |
Miscellaneous |
| Year |
2019 |
Publication |
FEBS Open Bio |
Abbreviated Journal |
FEBS Open Bio |
| Volume |
9 |
Issue |
S1 |
Pages |
79 |
| Keywords |
medicine; scheimpflug imaging; UVB; confocal microscopy; cornea; optical coherent tomography; rabbit eyes; terahertz radiation |
| Abstract |
Recently, active research has been conducted in the field of terahertz (THz) scanning of human tissues for noninvasive determination of their hydration level, which haves hown high diagnostic efficiency of this technology in various pathological conditions. Recently, we have developed a laboratory model of the facility for monitoring the state of the water balance of the cornea using THz scanning in vivo, which opens up the possibility of applying this approach in ophthalmology. The aim of the work wasto compare the results of the THz scan of the cornea with its clinical changes using the example of an experimental model of the UV induced keratouveitis. Anexperimental study, which included a comprehensive assessment of clinical changes in the cornea of rabbits during keratouveitis induction, revealed a decrease in the stability of the tear film, pathological changes in the corneal epithelium and stroma, as well as its anatomical and optical parameters. Comparison of data obtained in the THz scan of the cornea with tears production, optical coherence tomography and confocal microscopy showed their consistency in all observation periods, which allows us to conclude that the developed laboratory setup works and the feasibility of further research to promote the corneal hydration evaluation technology in clinical practice. Acknowledgements: Research was funded by the RSF, grant number 161500255. |
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2211-5463 |
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Poster P-01-040 |
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1276 |
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Emelianov, A. V.; Nekrasov, N. P.; Moskotin, M. V.; Fedorov, G. E.; Otero, N.; Romero, P. M.; Nevolin, V. K.; Afinogenov, B. I.; Nasibulin, A. G.; Bobrinetskiy, I. I. |
| Title |
Individual SWCNT transistor with photosensitive planar junction induced by two‐photon oxidation |
Type |
Journal Article |
| Year |
2021 |
Publication |
Adv. Electron. Mater. |
Abbreviated Journal |
Adv. Electron. Mater. |
| Volume |
7 |
Issue |
3 |
Pages |
2000872 |
| Keywords |
SWCNT transistors |
| Abstract |
The fabrication of planar junctions in carbon nanomaterials is a promising way to increase the optical sensitivity of optoelectronic nanometer-scale devices in photonic connections, sensors, and photovoltaics. Utilizing a unique lithography approach based on direct femtosecond laser processing, a fast and easy technique for modification of single-walled carbon nanotube (SWCNT) optoelectronic properties through localized two-photon oxidation is developed. It results in a novel approach of quasimetallic to semiconducting nanotube conversion so that metal/semiconductor planar junction is formed via local laser patterning. The fabricated planar junction in the field-effect transistors based on individual SWCNT drastically increases the photoresponse of such devices. The broadband photoresponsivity of the two-photon oxidized structures reaches the value of 2 × 107 A W−1 per single SWCNT at 1 V bias voltage. The SWCNT-based transistors with induced metal/semiconductor planar junction can be applied to detect extremely small light intensities with high spatial resolution in photovoltaics, integrated circuits, and telecommunication applications. |
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2199-160X |
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no |
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1843 |
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Селиверстов, С. В.; Финкель, М. И.; Рябчун, С. А.; Воронов, Б. М.; Каурова, Н. С.; Селезнев, В. А.; Смирнов, К. В.; Вахтомин, Ю. Б.; Пентин, И. В.; Гольцман, Г. Н. |
| Title |
Терагерцевый сверхпроводниковый детектор с аттоджоулевым энергетическим разрешением и постоянной времени 25 пс |
Type |
Conference Article |
| Year |
2014 |
Publication |
Труды XVIII международного симпозиума «Нанофизика и наноэлектроника» |
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1 |
Issue |
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Pages |
91-92 |
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NbN HEB |
| Abstract |
Представлены результаты измерения энергетического разрешения терагерцевого сверхпроводникового NbN-детектора на эффектеэлектронного разогрева, работающего при температуре около 10 К. Использование инновационной in situ технологии производства привело к существенному улучшению чувствительности детектора. Увеличение быстродействия детектора было достигнуто за счет реализации дополнительного диффузионного канала охла-ждения электронной подсистемы. Измеренное значение эквивалентной мощности шума на частоте 2.5 ТГц составило 2.0×10-13Вт•Гц-0.5, постоянной времени 25 пс. Соответствующее расчетное значение энергетического разрешения составило 2.5 аДж. |
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Нижний Новгород, Россия |
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Russian |
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no |
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1833 |
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Бурмистрова, А. В.; Девятов, И. А. |
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Расчет электронного транспорта в гетероструктурах, содержащих многозонные сверхпроводники |
Type |
Conference Article |
| Year |
2014 |
Publication |
Труды XVIII международного симпозиума «Нанофизика и наноэлектроника» |
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1 |
Issue |
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Pages |
21-22 |
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N/I/Sp junctions |
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В рамках приближения сильной связи теоретически рассчитаны проводимости контактов вида нормальный металл/изолятор/одноорбитальный сверхпроводник с p-типом сверхпроводящего спаривания (N/I/Sp). Объяснено наблюдаемое экспериментально как появление пика при нулевом напряжении, так и его расщепление в зависимости от толщины слоя изолятора. В рамках этой же микроскопической теории развит вариант техники решеточной функции Грина в мацубаровом представлении. Используя разработанный подход, рассчитаны фазовые и температурные зависимости тока Джозефсона для контакта сверхпроводника s-типа и многозонного железосодержащего сверхпроводника (ферропниктида) для различных ориентаций границы по отношению к кристаллографическим осям пниктида. |
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Нижний Новгород, Россия |
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Russian |
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no |
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1834 |
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Кардакова, А. И.; Финкель, М. И.; Морозов, Д. В.; Ковалюк, В. В.; Ан, П. П.; Гольцман, Г. Н. |
| Title |
Время электрон-фононного взаимодействия в сверхпроводниковых пленках нитрида титана |
Type |
Conference Article |
| Year |
2014 |
Publication |
Труды XVIII международного симпозиума «Нанофизика и наноэлектроника» |
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1 |
Issue |
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Pages |
47-48 |
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TiN films |
| Abstract |
Определены времена электрон-фононного взаимодействия в тонких сверхпроводниковых пленках нитрида титана. Измеренные значения τ_eph находятся в диапазоне от 5.5 нс до 88 нс при температурах 4,2 К и 1,7 К, соответственно, и соответствуют температурной зависимости Т^-3. |
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Нижний Новгород, Россия |
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Russian |
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1835 |
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