Photonics of Viburnum opulus L. Extracts in Microemulsions with Oxygen and Gold Nanoparticles

Chemosensors

卷:10

Ilia Samusev¹  Ivan Lyatun¹  Evgeniia Zemliakova¹  Dmitry Artamonov¹  Valery Bryukhanov¹  Artemy Khankaev¹  Vasily Slezhkin¹  Andrey Zyubin¹  Anna Tcibulnikova¹  Liubov Skrypnik¹ 

[1] REC Fundamental and Applied Photonics, Nanophotonics, Immanuel Kant Baltic Federal University, Nevskogo St. 14, 236016 Kaliningrad, Russia;

关键词: Viburnum opulus L. extract;    microemulsion;    luminescence;    energy transfer;    singlet oxygen;    complexation processes;   

DOI  :  10.3390/chemosensors10040130

来源: DOAJ

【 摘 要 】

In this paper, the optical properties of viburnum extract flavonoids in the visible region of the spectrum were investigated and their use as a potential photosensitizer of singlet oxygen for photodynamic therapy was evaluated. The presence of long-lived excited states in the extract molecules was established by spectral methods and time-resolved spectroscopy methods and the dependences of the absorption capacity and luminescence intensity of the extract molecules on the concentrations of oxygen and ablative nanoparticles of the gold in the reverse micelles of AOT (sodium dioctyl sulfosuccinate) were established. The plasmonic enhancement of the luminescence of the extract molecules and the processes of their complexation with oxygen were also established. Furthermore, the rate constants of the processes of conversion of exciting energy in complexes were determined.

【 授权许可】

Unknown