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Peters JA. Relaxivity of manganese ferrite nanoparticles. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2020; 120-121:72-94. [PMID: 33198969 DOI: 10.1016/j.pnmrs.2020.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/25/2020] [Accepted: 07/26/2020] [Indexed: 05/27/2023]
Abstract
Manganese ferrite nanoparticles are superparamagnetic and have very high saturation magnetization, which makes them candidates for application as MRI contrast agents. Because these nanoparticles are very effective enhancers of transverse relaxation, they are particularly suitable as negative (T2-weighted) contrast agents. The magnitude of the relaxivity of nanoparticulate Mn ferrites seems to be determined mainly by the method of preparation, their dimensions, and their saturation magnetization.
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Affiliation(s)
- Joop A Peters
- Biocatalysis, Department of Biotechnology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands.
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Shahzad A, Kim WS, Yu T. Synthesis, stabilization, growth behavior, and catalytic activity of highly concentrated silver nanoparticles using a multifunctional polymer in an aqueous-phase. RSC Adv 2015. [DOI: 10.1039/c5ra00610d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly concentrated Ag nanoparticles (above 20 g L−1) synthesized by the reaction AgNO3 with BPEI exhibited long-term stability over more than 40 days.
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Affiliation(s)
- Aasim Shahzad
- Department of Chemical Engineering
- College of Engineering
- Kyung Hee University
- Youngin
- Korea
| | - Woo-Sik Kim
- Department of Chemical Engineering
- College of Engineering
- Kyung Hee University
- Youngin
- Korea
| | - Taekyung Yu
- Department of Chemical Engineering
- College of Engineering
- Kyung Hee University
- Youngin
- Korea
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Kim E, Lee H, An Y, Jang E, Lim EK, Kang B, Suh JS, Huh YM, Haam S. Imidazolized magnetic nanovectors with endosome disrupting moieties for the intracellular delivery and imaging of siRNA. J Mater Chem B 2014; 2:8566-8575. [DOI: 10.1039/c4tb01274g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Lee T, Lim EK, Lee J, Kang B, Choi J, Park HS, Suh JS, Huh YM, Haam S. Efficient CD44-targeted magnetic resonance imaging (MRI) of breast cancer cells using hyaluronic acid (HA)-modified MnFe2O4 nanocrystals. NANOSCALE RESEARCH LETTERS 2013; 8:149. [PMID: 23547716 PMCID: PMC3621698 DOI: 10.1186/1556-276x-8-149] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Accepted: 01/31/2013] [Indexed: 05/14/2023]
Abstract
Targeted molecular imaging with hyaluronic acid (HA) has been highlighted in the diagnosis and treatment of CD44-overexpressing cancer. CD44, a receptor for HA, is closely related to the growth of cancer including proliferation, metastasis, invasion, and angiogenesis. For the efficient detection of CD44, we fabricated a few kinds of HA-modified MnFe2O4 nanocrystals (MNCs) to serve as specific magnetic resonance (MR) contrast agents (HA-MRCAs) and compared physicochemical properties, biocompatibility, and the CD44 targeting efficiency. Hydrophobic MNCs were efficiently phase-transferred using aminated polysorbate 80 (P80) synthesized by introducing spermine molecules on the hydroxyl groups of P80. Subsequently, a few kinds of HA-MRCAs were fabricated, conjugating different ratios of HA on the equal amount of phase-transferred MNCs. The optimized conjugation ratio of HA against magnetic content was identified to exhibit not only effective CD44 finding ability but also high cell viability through in vitro experiments. The results of this study demonstrate that the suggested HA-MRCA shows strong potential to be used for accurate tumor diagnosis.
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Affiliation(s)
- Taeksu Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Eun-Kyung Lim
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 120-752, South Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 120-752, South Korea
| | - Jaemin Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Byunghoon Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Jihye Choi
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Hyo Seon Park
- Department of Architectural Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Jin-Suck Suh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 120-752, South Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 120-752, South Korea
- Severance Biomedical Science Institute, Seoul, 120-752, South Korea
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 120-752, South Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 120-752, South Korea
- Severance Biomedical Science Institute, Seoul, 120-752, South Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, South Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 120-752, South Korea
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Yang J, Lee ES, Noh MY, Koh SH, Lim EK, Yoo AR, Lee K, Suh JS, Kim SH, Haam S, Huh YM. Ambidextrous magnetic nanovectors for synchronous gene transfection and labeling of human MSCs. Biomaterials 2011; 32:6174-82. [PMID: 21696819 DOI: 10.1016/j.biomaterials.2011.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 04/05/2011] [Indexed: 12/16/2022]
Abstract
The synchronization of gene expression and cell trafficking in transfected stem cells is crucial for augmentation of stem cell functions (differentiation and neurotropic factor secretion) and real time in vivo monitoring. We report a magnetic nanoparticle-based gene delivery system that can ensure simultaneous gene delivery and in vivo cell trafficking by high resolution MR imaging. The polar aprotic solvent soluble MnFe₂O₄ nanoparticles were enveloped using cationic polymers (branched polyethyleneimine, PEI) by the solvent shifting method for a gene loading. Using our magnetic nanovector system (PEI-coated MnFe₂O₄ nanoparticles), thus, we synchronized stem cell migration and its gene expression in a rat stroke model.
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Affiliation(s)
- Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
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Kim H, Dae HM, Park C, Kim EO, Kim D, Kim IH, Kim YH, Choi Y. A highly sensitive magnetite nanoparticle as a simple and rapid stem cell labelling agent for MRI tracking. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10247h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Lim EK, Yang J, Suh JS, Huh YM, Haam S. Self-labeled magneto nanoprobes using tri-aminated polysorbate 80 for detection of human mesenchymal stem cells. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b912149h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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