scholarly journals Targeted MR Imaging Adopting T1-weighted Ultra-Small Iron Oxide Nanoparticles for Early Hepatocellular Carcinoma：An in vitro and in vivo Study

2020 ◽  
Vol 0 (0) ◽  
pp. 6
Author(s):  
Keyword(s):  
Iron Oxide ◽  
Mr Imaging ◽  
Iron Oxide Nanoparticles ◽  
In Vivo Study ◽  
Oxide Nanoparticles

LAPONITE®-stabilized iron oxide nanoparticles for in vivo MR imaging of tumors

2016 ◽  
Vol 4 (3) ◽  
pp. 474-482 ◽  
Author(s):  
Ling Ding ◽  
Yong Hu ◽  
Yu Luo ◽  
Jianzhi Zhu ◽  
Yilun Wu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Mr Imaging ◽  
Iron Oxide Nanoparticles ◽  
Colloidal Stability ◽  
Coprecipitation Method ◽  
Oxide Nanoparticles

LAPONITE®-stabilized iron oxide nanoparticles with great colloidal stability and high T2 relaxivity are synthesized by a facile controlled coprecipitation method, and can significantly enhance the contrast of tumors in vivo, indicating their tremendous potential in MR imaging applications.

Efficient and Rapid Labeling of Transplanted Cell Populations with Superparamagnetic Iron Oxide Nanoparticles Using Cell Surface Chemical Biotinylation for in Vivo Monitoring by MRI

2010 ◽  
Vol 19 (4) ◽  
pp. 419-429 ◽  
Author(s):  
Po-Wah So ◽  
Tammy Kalber ◽  
David Hunt ◽  
Michael Farquharson ◽  
Alia Al-Ebraheem ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Cell Tracking ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Cell Populations ◽  
Oxide Nanoparticles ◽  
Signal Loss

Determination of the dynamics of specific cell populations in vivo is essential for the development of cell-based therapies. For cell tracking by magnetic resonance imaging (MRI), cells need to internalize, or be surface labeled with a MRI contrast agent, such as superparamagnetic iron oxide nanoparticles (SPIOs): SPIOs give rise to signal loss by gradient-echo and T2-weighted MRI techniques. In this study, cancer cells were chemically tagged with biotin and then magnetically labeled with anti-biotin SPIOs. No significant detrimental effects on cell viability or death were observed following cell biotinylation. SPIO-labeled cells exhibited signal loss compared to non-SPIO-labeled cells by MRI in vitro. Consistent with the in vitro MRI data, signal attenuation was observed in vivo from SPIO-labeled cells injected into the muscle of the hind legs, or implanted subcutaneously into the flanks of mice, correlating with iron detection by histochemical and X-ray fluorescence (XRF) methods. To further validate this approach, human mesenchymal stem cells (hMSCs) were also employed. Chemical biotinylation and SPIO labeling of hMSCs were confirmed by fluorescence microscopy and flow cytometry. The procedure did not affect proliferation and multipotentiality, or lead to increased cell death. The SPIO-labeled hMSCs were shown to exhibit MRI signal reduction in vitro and was detectable in an in vivo model. In this study, we demonstrate a rapid, robust, and generic methodology that may be a useful and practical adjuvant to existing methods of cell labeling for in vivo monitoring by MRI. Further, we have shown the first application of XRF to provide iron maps to validate MRI data in SPIO-labeled cell tracking studies.

Polyethylenimine-coated superparamagnetic iron oxide nanoparticles impair in vitro and in vivo angiogenesis

2019 ◽  
Vol 21 ◽  
pp. 102063 ◽  
Author(s):  
Vladimir Mulens-Arias ◽  
José Manuel Rojas ◽  
Laura Sanz-Ortega ◽  
Yadileiny Portilla ◽  
Sonia Pérez-Yagüe ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Intrinsically Germanium-69-Labeled Iron Oxide Nanoparticles: Synthesis and In-Vivo Dual-Modality PET/MR Imaging

2014 ◽  
Vol 26 (30) ◽  
pp. 5119-5123 ◽  
Author(s):  
Rubel Chakravarty ◽  
Hector F. Valdovinos ◽  
Feng Chen ◽  
Christina M. Lewis ◽  
Paul A. Ellison ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Mr Imaging ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Dual Modality ◽  
Nanoparticles Synthesis

scholarly journals Tumor Cell Targeting by Iron Oxide Nanoparticles Is Dominated by Different Factors In Vitro versus In Vivo

PLoS ONE ◽  
2015 ◽  
Vol 10 (2) ◽  
pp. e0115636 ◽  
Author(s):  
Christian NDong ◽  
Jennifer A. Tate ◽  
Warren C. Kett ◽  
Jaya Batra ◽  
Eugene Demidenko ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Tumor Cell ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Cell Targeting

scholarly journals Compact zwitterion-coated iron oxide nanoparticles for in vitro and in vivo imaging

2012 ◽  
Vol 5 (1) ◽  
pp. 108-114 ◽  
Author(s):  
He Wei ◽  
Oliver T. Bruns ◽  
Ou Chen ◽  
Moungi G. Bawendi
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
In Vivo Imaging ◽  
Oxide Nanoparticles
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