Temperature sensing of adipose tissue heating with the luminescent upconversion nanoparticles as nanothermometer: In vitro study

doi:10.1117/12.2250587

Эндаумент фонд ТГУ!
Впиши своё имя в историю университета
- Сделать пожертвование -

Add to "Quick Collection"

Description	Size	Format
Temperature sensing of adipose ti ssue heating with the luminescent upconversion nanoparticles as na nothermometer: In vitro study	1 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1117/12.2250587

#жировая ткань

#люминесцентные наночастицы

#фазовый переход

#нанотермометры

Title: Temperature sensing of adipose tissue heating with the luminescent upconversion nanoparticles as nanothermometer: In vitro study
Creator: Yanina, Irina Yu.
|
Zaharevich, A. M.
|
Konyukhova, Yuliya G.
|
Kochubey, Vyacheslav I.
|
Tuchin, Valery V.
|
Volkova, Elena K.
Date: 2017
DOI: 10.1117/12.2250587
Description: The luminescence spectra of upconversion nanoparticles (UCNPs) imbedded in fat tissue were measured in a wide temperature range, from room to human body and further to hyperthermic temperatures. The two types of synthesized UCNP [NaYF4:Yb3+, Er3+] specimens, namely, powdered as-is and embedded into polymer film, were used. The results show that the luminescence of UCNPs placed under the adipose tissue layer is reasonably good sensitive to temperature change and reflects phase transitions of lipids in tissue cells. The most likely, multiple phase transitions are associated with the different components of fat cells such as phospholipids of cell membrane and lipids of fat droplets. In the course of fat cell heating, lipids of fat droplet first transit from a crystalline form to a liquid crystal form and then to a liquid form, which is characterized by much less scattering. The phase transitions of lipids were observed as the changes of the slope of the temperature dependence of UCNP luminescence intensity. The obtained results confirm a high sensitivity of the luminescent UCNPs to the temperature variations within tissues and show a strong potential for providing a controllable tissue thermolysis.

Relationships: Show Relationship Browser for this Object
collection(s): Научное управление
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: Proceedings of SPIE. 2017. Vol. 10063 : Dynamics and fluctuations in biomedical photonics XIV, 29–30 January 2017, San Francisco, California, United States. P. 100631A-1-100631A-10
Language: eng