scholarly journals Iron content titanium dioxide nanoparticles as exogenous contrast agent for tissue imaging using swept-source optical coherence tomography

AIP Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 015023
Author(s):  
Tejal Barkhade ◽  
Abhishek Indoliya ◽  
Raju Poddar ◽  
Santosh Kumar Mahapatra ◽  
Indrani Banerjee
Keyword(s):  
Optical Coherence Tomography ◽  
Titanium Dioxide ◽  
Contrast Agent ◽  
Iron Content ◽  
Titanium Dioxide Nanoparticles ◽  
Tissue Imaging ◽  
Optical Coherence ◽  
Swept Source ◽  
Exogenous Contrast Agent

scholarly journals Synthesis and Research of Nanocompositions of Oxide Materials Based on Titanium Dioxide for use as Contrast Agents in Optical Coherence Tomography

2021 ◽  
pp. 325-338
Author(s):  
Artem Nikolaevich Kupriyanov ◽  
Diana Evgen’evna Fidarova ◽  
Linda Ruslanovna Makhmudova ◽  
Magomed Rasulovich Gadzhiev ◽  
Shuainat Ruslanovna Nimatulaeva ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Titanium Dioxide ◽  
Contrast Agent ◽  
Contrast Agents ◽  
Elemental Composition ◽  
Zirconium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Optical Coherence ◽  
Oxide Materials ◽  
The Stability

In this paper, the contrasting properties of titanium dioxide nanoparticles in various compositions were considered. In the course of the work, methods for the synthesis of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2 and SiO2-TiO2-ZrO2 were developed; the microstructure of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2was studied; the stability of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 was determined. The elemental composition of the oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 has also been studied using SEM and XRD methods. It was found that SiO2-TiO2-ZrO2 nanocomposites with content of titanium dioxide from 8 to 9.5 % and zirconium dioxide from 0.5 to 2 % are completely insoluble in a highly alkaline medium. Thus, this composition is the most optimal for use as a contrast agent in optical coherence tomography.

scholarly journals Contrast Enhancement of Optical Coherence Tomography Images Using Branched Gold Nanoparticles

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Y. Ponce de León ◽  
J. L. Pichardo-Molina ◽  
N. Alcalá Ochoa ◽  
D. Luna-Moreno
Keyword(s):  
Gold Nanoparticles ◽  
Optical Coherence Tomography ◽  
Contrast Agent ◽  
Plasmon Resonance ◽  
Tissue Imaging ◽  
Optical Coherence ◽  
Tissue Phantoms ◽  
Promising Application ◽  
Oct Imaging ◽  
Scatter Light

We propose the use of branched gold nanoparticles (B-GNPs) as a contrast agent for optical coherence tomography (OCT) imaging. Our results show that even when the central source of our OCT (1325 nm) is too far from the maximum peak of the plasmon resonance, branched nanoparticles scatter light very efficiently at this wavelength. B-GNPs were tested as a contrast agent in water and agarose-TiO2tissue phantoms; the estimated increments in contrast were 9.19 dB and 15.07 dB for branched nanoparticles in water with concentrations of2.2×109 NPs/mL and6.6×109 NPs/mL, respectively, while for agarose-TiO2tissue phantoms the estimated value was 3.17 dB. These results show the promising application of B-GNPs as a contrast agent for tissue imaging using OCT, not only for sources at 1325 nm but also at other central wavelengths located between 800 and 1000 nm.

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