scholarly journals Magnetite nanoparticles as promising structures for magneto-luminescent theranostics of tumors.

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
A.S. Gorshkova ◽  
◽  
A.V. Ivanov ◽  
I.P. Shilov ◽  
V.D. Rumyantseva ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Luminescence Intensity ◽  
Hematoporphyrin Ix

The synthesized nanoparticles based on magnetite have been investigated for magneto-luminescent theranostics of tumors. A magnetite core provides hyperthermia, IR-luminescent diagnostics due to the Yb(асас)-complex of hematoporphyrin IX tetramethyl ether is carried out. It is shown that the magnetite core inclusion doesn’t lead to a significant decrease in the luminescence intensity of the Yb-complex in the synthesized nanocomposites.

Magnetic properties of bacterial magnetosomes and chemosynthesized magnetite nanoparticles

2008 ◽  
Vol 44 (2) ◽  
pp. 113-120 ◽  
Author(s):  
M. Timko ◽  
A. Dżarová ◽  
V. Závišová ◽  
M. Koneracká ◽  
A. Šprincová ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetite Nanoparticles

Dual vis-NIR emissive heterometallic naphthoates of Eu-Yb-Gd: new approach toward Yb luminescence intensity increase through Eu→Yb energy transfer

2021 ◽  
Author(s):  
Jae Hoon Kim ◽  
Leonid Lepnev ◽  
Valentina V. Utochnikova
Keyword(s):  
Energy Transfer ◽  
Luminescence Intensity ◽  
Intensity Increase ◽  
New Approach ◽  
New Phase

Homo- and heteroligand mono-, bi-, and trimetallic lanthanide naphthoates EuxYbyGd1-x-y(naph)3(Phen)n (n = 0, 1) were obtained and thoroughly investigated. Homoligand naphthoates of the new phase were obtained as unhydrous powders...

scholarly journals Self-assembly induced luminescence of Eu3+-complexes and application in bioimaging

2021 ◽  
Author(s):  
Ping-Ru Su ◽  
Tao Wang ◽  
Pan-Pan Zhou ◽  
Xiao-Xi Yang ◽  
Xiao-Xia Feng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rare Earth ◽  
Luminescence Intensity ◽  
Self Assembly ◽  
Room Temperature ◽  
Molecular Motion ◽  
Proof Of Concept ◽  
Room Temperature Phosphorescence ◽  
New Strategy ◽  
Size Controlled

Abstract Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room temperature phosphorescence (RTP) and aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) with self-assembly induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared with previous RTP or AIE materials, the SAIL phenomena of increased luminescence intensity and lifetime in aqueous solution for the proposed Eu-NPs are due to the combined effect of self-assembly in confining the molecular motion and shielding the water quenching. As a proof of concept, we also show that this system can be further applied in bioimaging, temperature measurement and HClO sensing. The SAIL activity of the rare-earth (RE) system proposed here offers a further step forward on the roadmap for the development of RE light conversion systems and their integration in bioimaging and therapy applications.

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