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Newton SL, Franke A, Zahl A, Molinaro G, Kenwright A, Smith DJ, Ivanovic-Burmazovic I, Britton MM, Peacock AFA. Understanding the mechanism by which Gd(III) coiled coils achieve magnetic resonance relaxivity - a study into the water coordination chemistry. Dalton Trans 2023; 52:15665-15668. [PMID: 37882137 DOI: 10.1039/d3dt02909c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
A class of Gd(III) coiled coils achieve high MRI relaxivity, in part due to their slow rotational correlation time. However, extending their length is unable to further enhance performance, as the mechanism by which relaxivity is achieved is dominated by the presence of three inner sphere waters in rapid exchange, through an associative mechanism.
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Affiliation(s)
- S L Newton
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.
- PSIBS, School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK
| | - A Franke
- Department Chemie und Pharmazie, Universität Erlangen-Nürnberg, D-91058, Erlangen, Germany
- Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - A Zahl
- Department Chemie und Pharmazie, Universität Erlangen-Nürnberg, D-91058, Erlangen, Germany
| | - G Molinaro
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.
| | - A Kenwright
- School of Chemistry, Durham University, Durham, DH1 3LE, UK
| | - D J Smith
- School of Mathematics, University of Birmingham, Edgbaston, B15 2TT, UK
| | - I Ivanovic-Burmazovic
- Department Chemie und Pharmazie, Universität Erlangen-Nürnberg, D-91058, Erlangen, Germany
- Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - M M Britton
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.
| | - A F A Peacock
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.
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Ernenwein D, Geisler I, Pavlishchuk A, Chmielewski J. Metal-Assembled Collagen Peptide Microflorettes as Magnetic Resonance Imaging Agents. Molecules 2023; 28:molecules28072953. [PMID: 37049716 PMCID: PMC10095756 DOI: 10.3390/molecules28072953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Magnetic resonance imaging (MRI) is a medical imaging technique that provides detailed information on tissues and organs. However, the low sensitivity of the technique requires the use of contrast agents, usually ones that are based on the chelates of gadolinium ions. In an effort to improve MRI signal intensity, we developed two strategies whereby the ligand DOTA and Gd(III) ions are contained within Zn(II)-promoted collagen peptide (NCoH) supramolecular assemblies. The DOTA moiety was included in the assembly either via a collagen peptide sidechain (NHdota) or through metal–ligand interactions with a His-tagged DOTA conjugate (DOTA-His6). SEM verified that the morphology of the NCoH assembly was maintained in the presence of the DOTA-containing peptides (microflorettes), and EDX and ICP-MS confirmed that Gd(III) ions were incorporated within the microflorettes. The Gd(III)-loaded DOTA florettes demonstrated higher intensities for the T1-weighted MRI signal and higher longitudinal relaxivity (r1) values, as compared to the clinically used contrast agent Magnevist. Additionally, no appreciable cellular toxicity was observed with the collagen microflorettes loaded with Gd(III). Overall, two peptide-based materials were generated that have potential as MRI contrast agents.
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3
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Specific Bifunctionalization on the Surface of Phosphorus Dendrimers Syntheses and Properties. ORGANICS 2022. [DOI: 10.3390/org3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dendrimers are highly branched macromolecules possessing, in most cases, identical terminal functions. However, it is sometimes desirable to have two types of surface functions in order to fulfil specific properties. The stochastic functionalization is frequently used for such purposes, but the presence of an uncontrolled number of each type of terminal function, albeit acceptable for research purposes, has no practical use. Thus, it is highly desirable to find strategies suitable for the precise grafting of two different functional groups on the surface of dendrimers. The easiest way, and the most widely used, consists in using a bifunctional monomer to be grafted to all of the surface functions of the dendrimers. Two other strategies are known but are rarely used: the modification of an existing function, to generate two functions, and the sequential grafting of one function then of a second function. The three methods are illustrated in this review with polyphosphorhydrazone (PPH) dendrimers, together with their properties as catalysts, for materials, and as biological tools.
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Li XZ, Tian CB, Sun QF. Coordination-Directed Self-Assembly of Functional Polynuclear Lanthanide Supramolecular Architectures. Chem Rev 2022; 122:6374-6458. [PMID: 35133796 DOI: 10.1021/acs.chemrev.1c00602] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lanthanide supramolecular chemistry is a fast growing and intriguing research field due to the unique photophysical, magnetic, and coordination properties of lanthanide ions (LnIII). Compared with the intensively investigated mononuclear Ln-complexes, polymetallic lanthanide supramolecular assemblies offer more structural superiority and functional advantages. In recent decades, significant progress has been made in polynuclear lanthanide supramolecules, varying from structural evolution to luminescent and magnetic functional materials. This review summarizes the design principles in ligand-induced coordination-driven self-assembly of polynuclear Ln-structures and intends to offer guidance for the construction of more elegant Ln-based architectures and optimization of their functional performances. Design principles concerning the water solubility and chirality of the lanthanide-organic assemblies that are vital in extending their applications are emphasized. The strategies for improving the luminescent properties and the applications in up-conversion, host-guest chemistry, luminescent sensing, and catalysis have been summarized. Magnetic materials based on supramolecular assembled lanthanide architectures are given in an individual section and are classified based on their structural features. Challenges remaining and perspective directions in this field are also briefly discussed.
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Affiliation(s)
- Xiao-Zhen Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Chong-Bin Tian
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Qing-Fu Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
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6
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Bailey MD, Jin GX, Carniato F, Botta M, Allen MJ. Rational Design of High-Relaxivity Eu II -Based Contrast Agents for Magnetic Resonance Imaging of Low-Oxygen Environments. Chemistry 2021; 27:3114-3118. [PMID: 33226696 PMCID: PMC7902434 DOI: 10.1002/chem.202004450] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/21/2020] [Indexed: 01/01/2023]
Abstract
Metal-based contrast agents for magnetic resonance imaging present a promising avenue to image hypoxia. EuII -based contrast agents have a unique biologically relevant redox couple, EuII/III , that distinguishes this metal for use in hypoxia imaging. To that end, we investigated a strategy to enhance the contrast-enhancing capabilities of EuII -based cryptates in magnetic resonance imaging by controlling the rotational dynamics. Two dimetallic, EuII -containing cryptates were synthesized to test the efficacy of rigid versus flexible coupling strategies. A flexible strategy to dimerization led to a modest (114 %) increase in contrast enhancement per Eu ion (60 MHz, 298 K), but a rigid linking strategy led to an excellent (186 %) increase in contrast enhancement despite this compound's having the smaller molecular mass of the two dimetallic complexes. We envision the rigid linking strategy to be useful in the future design of potent EuII -based contrast agents for magnetic resonance imaging.
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Affiliation(s)
- Matthew D Bailey
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Guo-Xia Jin
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121, Alessandria, Italy
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121, Alessandria, Italy
| | - Matthew J Allen
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
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Gillani SS, Munawar MA, Khan KM, Chaudhary JA. Synthesis, characterization and applications of poly-aliphatic amine dendrimers and dendrons. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [PMCID: PMC7298932 DOI: 10.1007/s13738-020-01973-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the current era, the dendrimers have vast potential applications in the area of electronics, healthcare, pharmaceuticals, biotechnology, engineering products, photonics, drug delivery, catalysis, electronic devices, nanotechnologies and environmental issues. This review recaps the synthesis, characterization and applications of poly-aliphatic amine dendrimers.
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Huang SY, Qian M, Pierre VC. The Ligand Cap Affects the Coordination Number but Not Necessarily the Affinity for Anions of Tris-Bidentate Europium Complexes. Inorg Chem 2020; 59:4096-4108. [PMID: 32105456 DOI: 10.1021/acs.inorgchem.0c00137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
To evaluate the effect of ligand geometry on the coordination number, number of inner-sphere water molecules, and affinity for anions of the corresponding lanthanide complex, six tris-bidentate 1,2-hydroxypyridonate (HOPO) europium(III) complexes with different cap sizes were synthesized and characterized. Wider or more flexible ligand caps, such as in EuIII-TREN-Gly-HOPO and EuIII-3,3-Gly-HOPO, enable the formation of nine-coordinate europium(III) complexes bearing three inner-sphere water molecules. In contrast, smaller or more rigid caps, such as in EuIII-TREN-HOPO, EuIII-2,2-Li-HOPO, EuIII-3,3-Li-HOPO, and EuIII-2,2-Gly-HOPO, favor eight-coordinate europium(III) complexes that have only two inner-sphere water molecules. Notably, there is no correlation between the number of inner-sphere water molecules and the affinity of the Eu(III) complexes for phosphate. Some q = 2 (EuIII-TREN-HOPO, EuIII-3,3-Li-HOPO, and EuIII-2,2-Gly-HOPO) and some q = 3 (EuIII-TREN-Gly-HOPO) complexes have no affinity for anions, whereas one q = 2 complex (EuIII-2,2-Li-HOPO) and one q = 3 complex (EuIII-3,3-Gly-HOPO) have a high affinity for phosphate. For the latter two systems, each inner-sphere water molecule is replaced with a phosphate anion, resulting in the formation of EuLPi2 and EuLPi3 adducts, respectively.
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Affiliation(s)
- Sheng-Yin Huang
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Michelle Qian
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Valérie C Pierre
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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9
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Ndiaye M, Malytskyi V, Vangijzegem T, Sauvage F, Wels M, Cadiou C, Moreau J, Henoumont C, Boutry S, Muller RN, Harakat D, Smedt SD, Laurent S, Chuburu F. Comparison of MRI Properties between Multimeric DOTAGA and DO3A Gadolinium-Dendron Conjugates. Inorg Chem 2019; 58:12798-12808. [DOI: 10.1021/acs.inorgchem.9b01747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Maleotane Ndiaye
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Volodymyr Malytskyi
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Thomas Vangijzegem
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Félix Sauvage
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Mike Wels
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Cyril Cadiou
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Juliette Moreau
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Céline Henoumont
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Sébastien Boutry
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Robert N. Muller
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Stefaan De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Sophie Laurent
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Françoise Chuburu
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
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10
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Influence of Molecular Mobility on Contrast Efficiency of Branched Polyethylene Glycol Contrast Agent. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2018:1259325. [PMID: 30627056 PMCID: PMC6305028 DOI: 10.1155/2018/1259325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/10/2018] [Accepted: 10/19/2018] [Indexed: 12/02/2022]
Abstract
For a water-soluble polyethylene glycol (PEG) magnetic resonance imaging (MRI) contrast agent, it has been demonstrated that the contrast efficiency was increased with increased branched structure of the contrast agent. However, the cause of enhanced contrast efficiency by the branched structure has not been clarified. Hence, we investigate the cause of the contrast agent enhancement by changing the Gd introduction ratio of the eight-arm PEG from 1.97 to 4.07; furthermore, the terminal mobility of the contrast agents with different structures was evaluated using proton nuclear magnetic resonance (1H-NMR) spectroscopy. It was shown that the relaxivity and contrast luminance of the synthesized branched PEG-Gd contrast agents are larger than those of linear PEG-Gd and commercially available contrast agents. Additionally, the change in the Gd introduction ratio did not affect the contrast efficiency. The terminal mobility results measured by NMR show that the linewidth at half height became broader with an increased number of branches, implying that the mobility of branched PEG-Gd is slower than that of linear PEG-Gd. Interestingly, the linewidth at half height of different structures did not change in an organic solvent; this phenomenon appeared specifically in water. It is suggested that the stable branched structure enabled the improvement in the relaxivity and contrast luminance.
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11
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Arian M, Zamanian A, Taheri S. Highly water-dispersible calcium lignosulfonate-capped MnO nanoparticles as a T1 MRI contrast agent with exceptional colloidal stability, low toxicity and remarkable relaxivity. RSC Adv 2019; 9:40498-40506. [PMID: 35542658 PMCID: PMC9076238 DOI: 10.1039/c9ra09125d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 11/28/2019] [Indexed: 12/27/2022] Open
Abstract
A simple and efficient method to synthesize highly water-dispersible calcium lignosulfonate-coated manganese oxide nanoparticles as a potential candidate for the current magnetic resonance imaging (MRI) T1 contrast agents was reported. Hydrophobic MnO nanoparticles with dimensions of about 10 nm were prepared by thermal decomposition of manganese(ii)acetylacetonate in the presence of oleic acid as a surfactant. The characteristics of the synthesized nanoparticles, cytotoxicity assay and in vitro MRI properties were investigated in detail. Results showed that calcium lignosulfonate has a great influence on the colloidal stability and biocompatibility of MnO nanoparticles in water. Furthermore, this coating agent ensures abundant exposure of external Mn ion with protons of water, which endows the nanoparticles with a longitudinal molar relaxivity (r1) of 4.62 mM−1 s−1. An efficient contrast enhancement effect was observed in the study of MRI investigations. A simple and efficient method to synthesize highly water-dispersible calcium lignosulfonate-coated manganese oxide nanoparticles as a potential candidate for the current magnetic resonance imaging (MRI) T1 contrast agents was reported.![]()
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Affiliation(s)
- Mahdi Arian
- Biomaterials Research Group
- Nanotechnology and Advanced Materials Department
- Materials and Energy Research Center (MERC)
- Tehran
- Iran
| | - Ali Zamanian
- Biomaterials Research Group
- Nanotechnology and Advanced Materials Department
- Materials and Energy Research Center (MERC)
- Tehran
- Iran
| | - Salman Taheri
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI)
- Tehran
- Iran
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12
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Feng J, Luo Q, Chen Y, Li B, Luo K, Lan J, Yu Y, Zhang S. DOTA Functionalized Cross-Linked Small-Molecule Micelles for Theranostics Combining Magnetic Resonance Imaging and Chemotherapy. Bioconjug Chem 2018; 29:3402-3410. [PMID: 30200761 DOI: 10.1021/acs.bioconjchem.8b00565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | | | | | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
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Lux J, Sherry AD. Advances in gadolinium-based MRI contrast agent designs for monitoring biological processes in vivo. Curr Opin Chem Biol 2018; 45:121-130. [PMID: 29751253 PMCID: PMC6076858 DOI: 10.1016/j.cbpa.2018.04.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/02/2018] [Accepted: 04/13/2018] [Indexed: 11/22/2022]
Abstract
The gadolinium-based contrast agents widely used in diagnostic MRI exams for 30 years are all small molecule agents that distribute into all extracellular spaces in tissues without providing any specific biological information. Although many 'responsive agent' designs have been presented over the past 20 years or so, none have found use in clinical diagnostic medicine at this point. This review summarizes some recent approaches taken to enhance the sensitivity of such gadolinium-based agents, to target them to specific tissue components, and to create new systems for monitoring specific biological processes.
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Affiliation(s)
- Jacques Lux
- Department of Radiology and the Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States; Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, TX 75083, United States
| | - A Dean Sherry
- Department of Radiology and the Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States; Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, TX 75083, United States.
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14
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Influence of rhodamine B on interaction behaviour of lanthanide nitrates with 1st tier dendrimer in aqueous DMSO: A physicochemical, critical aggregation concentration and antioxidant activity study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Mahara A, Enmi JI, Hsu YI, Kobayashi N, Hirano Y, Iida H, Yamaoka T. Superfine Magnetic Resonance Imaging of the Cerebrovasculature Using Self-Assembled Branched Polyethylene Glycol-Gd Contrast Agent. Macromol Biosci 2018; 18:e1700391. [PMID: 29665311 DOI: 10.1002/mabi.201700391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 02/15/2018] [Indexed: 12/12/2022]
Abstract
Magnetic resonance angiography is an attractive method for the visualization of the cerebrovasculature, but small-sized vessels are hard to visualize with the current clinically approved agents. In this study, a polymeric contrast agent for the superfine imaging of the cerebrovasculature is presented. Eight-arm polyethylene glycol with a molecular weight of ≈17 000 Da conjugated with a Gd chelate and fluorescein (F-8-arm PEG-Gd) is used. The relaxivity rate is 9.3 × 10-3 m-1 s-1 , which is threefold higher than that of free Gd chelate. Light scattering analysis reveals that F-8-arm PEG-Gd is formed by self-assembly. When the F-8-arm PEG-Gd is intravenously injected, cerebrovasculature as small as 100 µm in diameter is clearly visualized. However, signals are not enhanced when Gd chelate and Gd chelate-conjugated 8-arm PEG are injected. Furthermore, small vasculature around infarct region in rat stroke model can be visualized. These results suggest that F-8-arm PEG-Gd enhances the MR imaging of cerebrovasculature.
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Affiliation(s)
- Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Jun-Ichiro Enmi
- Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Yu-I Hsu
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Naoki Kobayashi
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka, 565-8680, Japan
| | - Yoshiaki Hirano
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka, 565-8680, Japan
| | - Hidehiro Iida
- Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Fujishiro-dai, Suita, Osaka, 565-8565, Japan
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16
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Zhang W, Liu L, Chen H, Hu K, Delahunty I, Gao S, Xie J. Surface impact on nanoparticle-based magnetic resonance imaging contrast agents. Theranostics 2018; 8:2521-2548. [PMID: 29721097 PMCID: PMC5928907 DOI: 10.7150/thno.23789] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/09/2018] [Indexed: 12/23/2022] Open
Abstract
Magnetic resonance imaging (MRI) is one of the most widely used diagnostic tools in the clinic. To improve imaging quality, MRI contrast agents, which can modulate local T1 and T2 relaxation times, are often injected prior to or during MRI scans. However, clinically used contrast agents, including Gd3+-based chelates and iron oxide nanoparticles (IONPs), afford mediocre contrast abilities. To address this issue, there has been extensive research on developing alternative MRI contrast agents with superior r1 and r2 relaxivities. These efforts are facilitated by the fast progress in nanotechnology, which allows for preparation of magnetic nanoparticles (NPs) with varied size, shape, crystallinity, and composition. Studies suggest that surface coatings can also largely affect T1 and T2 relaxations and can be tailored in favor of a high r1 or r2. However, the surface impact of NPs has been less emphasized. Herein, we review recent progress on developing NP-based T1 and T2 contrast agents, with a focus on the surface impact.
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Affiliation(s)
- Weizhong Zhang
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Lin Liu
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Hongmin Chen
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Kai Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Ian Delahunty
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Shi Gao
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Jin Xie
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
- Bio-Imaging Research Center, University of Georgia, Athens, Georgia 30602, USA
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Eskandari A, Jafarpour M, Rezaeifard A, Salimi M. A dendritic TiO2–Co(ii) nanocomposite based on the melamine catalyzed one-pot aerobic photocatalytic synthesis of benzimidazoles. NEW J CHEM 2018. [DOI: 10.1039/c8nj00351c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The nanocrystalline TiO2 surface modified with cobalt melamine dendrimer amine complex under ultrasonic agitation produced a novel low band-gap photocatalyst (Co(ii)–TD@TiO2). This catalyst system involves photooxidation of alcohols to aldehydes followed by cyclocondensation with 1,2-phenylenediamine to afford benzimidazoles in one-pot operation with good to excellent yield.
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Affiliation(s)
- Ameneh Eskandari
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand
- Birjand
- Iran
| | - Maasoumeh Jafarpour
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand
- Birjand
- Iran
| | - Abdolreza Rezaeifard
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand
- Birjand
- Iran
| | - Mehri Salimi
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand
- Birjand
- Iran
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18
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Wu B, Lu ST, Deng K, Yu H, Cui C, Zhang Y, Wu M, Zhuo RX, Xu HB, Huang SW. MRI-guided targeting delivery of doxorubicin with reduction-responsive lipid-polymer hybrid nanoparticles. Int J Nanomedicine 2017; 12:6871-6882. [PMID: 29066883 PMCID: PMC5604569 DOI: 10.2147/ijn.s143048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In recent years, there has been increasing interest in developing a multifunctional nanoscale platform for cancer monitoring and chemotherapy. However, there is still a big challenge for current clinic contrast agents to improve their poor tumor selectivity and response. Herein, we report a new kind of Gd complex and folate-coated redox-sensitive lipid-polymer hybrid nanoparticle (Gd-FLPNP) for tumor-targeted magnetic resonance imaging and therapy. Gd-FLPNPs can simultaneously accomplish diagnostic imaging, and specific targeting and controlled release of doxorubicin (DOX). They exhibit good monodispersity, excellent size stability, and a well-defined core-shell structure. Paramagnetic nanoparticles based on gadolinium-diethylenetriaminepentaacetic acid-bis-cetylamine have paramagnetic properties with an approximately two-fold enhancement in the longitudinal relaxivity compared to clinical used Magnevist. For targeted and reduction-sensitive drug delivery, Gd-FLPNPs released DOX faster and enhanced cell uptake in vitro, and exhibited better antitumor effect both in vitro and in vivo.
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Affiliation(s)
- Bo Wu
- Department of Radiology, Zhongnan Hospital of Wuhan University.,Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Shu-Ting Lu
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Kai Deng
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Hui Yu
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Can Cui
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Yang Zhang
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Ming Wu
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Hai-Bo Xu
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Shi-Wen Huang
- Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
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19
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Yang T, Feng W, Hu C, Lv Z, Wei H, Jiang J, Liu S, Zhao Q. Manganese porphyrin-incorporated conjugated polymer nanoparticles for T1-enhanced magnetic resonance and fluorescent imaging. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Tei L, Gugliotta G, Gambino G, Fekete M, Botta M. Developing High Field MRI Contrast Agents by Tuning the Rotational Dynamics: Bisaqua GdAAZTA-based Dendrimers. Isr J Chem 2017. [DOI: 10.1002/ijch.201700041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lorenzo Tei
- Dipartimento di Scienze e Innovazione Tecnologica; Università del Piemonte Orientale “A. Avogadro”; Viale Teresa Michel 11 15121 Alessandria Italy
| | - Giuseppe Gugliotta
- Dipartimento di Scienze e Innovazione Tecnologica; Università del Piemonte Orientale “A. Avogadro”; Viale Teresa Michel 11 15121 Alessandria Italy
| | - Giuseppe Gambino
- Dipartimento di Scienze e Innovazione Tecnologica; Università del Piemonte Orientale “A. Avogadro”; Viale Teresa Michel 11 15121 Alessandria Italy
| | - Marianna Fekete
- Dipartimento di Scienze e Innovazione Tecnologica; Università del Piemonte Orientale “A. Avogadro”; Viale Teresa Michel 11 15121 Alessandria Italy
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica; Università del Piemonte Orientale “A. Avogadro”; Viale Teresa Michel 11 15121 Alessandria Italy
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21
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Wu B, Wan B, Lu ST, Deng K, Li XQ, Wu BL, Li YS, Liao RF, Huang SW, Xu HB. Near-infrared light-triggered theranostics for tumor-specific enhanced multimodal imaging and photothermal therapy. Int J Nanomedicine 2017; 12:4467-4478. [PMID: 28670120 PMCID: PMC5481284 DOI: 10.2147/ijn.s137835] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The major challenge in current clinic contrast agents (CAs) and chemotherapy is the poor tumor selectivity and response. Based on the self-quench property of IR820 at high concentrations, and different contrast effect ability of Gd-DOTA between inner and outer of liposome, we developed "bomb-like" light-triggered CAs (LTCAs) for enhanced CT/MRI/FI multimodal imaging, which can improve the signal-to-noise ratio of tumor tissue specifically. IR820, Iohexol and Gd-chelates were firstly encapsulated into the thermal-sensitive nanocarrier with a high concentration. This will result in protection and fluorescence quenching. Then, the release of CAs was triggered by near-infrared (NIR) light laser irradiation, which will lead to fluorescence and MRI activation and enable imaging of inflammation. In vitro and in vivo experiments demonstrated that LTCAs with 808 nm laser irradiation have shorter T1 relaxation time in MRI and stronger intensity in FI compared to those without irradiation. Additionally, due to the high photothermal conversion efficiency of IR820, the injection of LTCAs was demonstrated to completely inhibit C6 tumor growth in nude mice up to 17 days after NIR laser irradiation. The results indicate that the LTCAs can serve as a promising platform for NIR-activated multimodal imaging and photothermal therapy.
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Affiliation(s)
- Bo Wu
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Bing Wan
- Department of Radiology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology
| | - Shu-Ting Lu
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Kai Deng
- Department of Chemistry, Key Laboratory of Biomedical Polymers, Ministry of Education, Wuhan University, Wuhan, People’s Republic of China
| | - Xiao-Qi Li
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Bao-Lin Wu
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Yu-Shuang Li
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Ru-Fang Liao
- Department of Radiology, Zhongnan Hospital of Wuhan University
| | - Shi-Wen Huang
- Department of Chemistry, Key Laboratory of Biomedical Polymers, Ministry of Education, Wuhan University, Wuhan, People’s Republic of China
| | - Hai-Bo Xu
- Department of Radiology, Zhongnan Hospital of Wuhan University
- Department of Radiology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology
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22
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Huang H, Lovell JF. Advanced Functional Nanomaterials for Theranostics. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1603524. [PMID: 28824357 PMCID: PMC5560626 DOI: 10.1002/adfm.201603524] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Nanoscale materials have been explored extensively as agents for therapeutic and diagnostic (i.e. theranostic) applications. Research efforts have shifted from exploring new materials in vitro to designing materials that function in more relevant animal disease models, thereby increasing potential for clinical translation. Current interests include non-invasive imaging of diseases, biomarkers and targeted delivery of therapeutic drugs. Here, we discuss some general design considerations of advanced theranostic materials and challenges of their use, from both diagnostic and therapeutic perspectives. Common classes of nanoscale biomaterials, including magnetic nanoparticles, quantum dots, upconversion nanoparticles, mesoporous silica nanoparticles, carbon-based nanoparticles and organic dye-based nanoparticles, have demonstrated potential for both diagnosis and therapy. Variations such as size control and surface modifications can modulate biocompatibility and interactions with target tissues. The needs for improved disease detection and enhanced chemotherapeutic treatments, together with realistic considerations for clinically translatable nanomaterials will be key driving factors for theranostic agent research in the near future.
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Affiliation(s)
- Haoyuan Huang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York, 14260, United States
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York, 14260, United States
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23
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Cao Y, Liu M, Zu G, Kuang Y, Tong X, Xiong D, Pei R. Hyperbranched poly(glycerol) as a T1 contrast agent for tumor-targeted magnetic resonance imaging in vivo. Polym Chem 2017. [DOI: 10.1039/c6py01819j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore a convenient and efficient strategy for constructing tumor-targeted T1 mCAs for MRI, hyperbranched poly(glycerol) prepared in one-pot was used to conjugate gadolinium chelates and folic acid ligands through “click chemistry”.
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Affiliation(s)
- Yi Cao
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
- Key Laboratory of Nano-Bio Interface
| | - Min Liu
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
| | - Guangyue Zu
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
| | - Ye Kuang
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
| | - Xiaoyan Tong
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
| | - Dangsheng Xiong
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Renjun Pei
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215123
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24
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Yan Y, Zhang J, Ren L, Tang C. Metal-containing and related polymers for biomedical applications. Chem Soc Rev 2016; 45:5232-63. [PMID: 26910408 PMCID: PMC4996776 DOI: 10.1039/c6cs00026f] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A survey of the most recent progress in the biomedical applications of metal-containing polymers is given. Due to the unique optical, electrochemical, and magnetic properties, at least 30 different metal elements, most of them transition metals, are introduced into polymeric frameworks for interactions with biology-relevant substrates via various means. Inspired by the advance of metal-containing small molecular drugs and promoted by the great progress in polymer chemistry, metal-containing polymers have gained momentum during recent decades. According to their different applications, this review summarizes the following biomedical applications: (1) metal-containing polymers as drug delivery vehicles; (2) metal-containing polymeric drugs and biocides, including antimicrobial and antiviral agents, anticancer drugs, photodynamic therapy agents, radiotherapy agents and biocides; (3) metal-containing polymers as biosensors, and (4) metal-containing polymers in bioimaging.
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Affiliation(s)
- Yi Yan
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
- Department of Applied Chemistry, School of Science, Northwestern Polytechnical, University, Xi’an, Shannxi, 710129, China
| | - Jiuyang Zhang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
| | - Lixia Ren
- School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, United States
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25
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Johnson NJJ, He S, Nguyen Huu VA, Almutairi A. Compact Micellization: A Strategy for Ultrahigh T1 Magnetic Resonance Contrast with Gadolinium-Based Nanocrystals. ACS NANO 2016; 10:8299-8307. [PMID: 27588579 DOI: 10.1021/acsnano.6b02559] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Paramagnetic gadolinium (Gd(3+))-based nanocrystals (NCs) with a large number of confined gadolinium ions can be expected to heavily enhance the longitudinal (T1) relaxation of water protons compared to clinical gadolinium complexes with only a single paramagnetic center. However, paramagnetic Gd(3+)-NCs reported to date show only a modest T1 relaxivity of ∼10 mM(-1) s(-1) per Gd(3+) at 1.5 T, only about 3-times higher than clinical Gd(3+) complexes. Here we demonstrate a strategy that achieves ultrahigh T1 relaxivity that is about 25-times higher than clinical Gd(3+) complexes by controlling the proximity of water protons to a paramagnetic NC surface. Using NaGdF4 NCs (∼3 nm) coated with PEG-ylated phospholipid (DSPE-PEG) micelles, we show that the distance of water protons to the NCs surface can be tuned by controlling the NC-micelle sizes. Increasing the ratio of DSPE-PEG to NCs during micellization decreases the size of NC-micelles, enhancing the proximity of water to the NC surface. Using this strategy, we have achieved compact NC-micelles (hydrodynamic diameter, HD ∼ 5 nm) with ultrahigh T1 relaxivity of ∼80 mM(-1) s(-1) per Gd(3+) at 1.41 T. The findings reported here demonstrate a nanostructured Gd(3+)-contrast agent (CA) that simultaneously achieves an ultrahigh T1 relaxivity approaching theoretical predictions, extremely compact size (HD < 5 nm), and a biocompatible surface. Our results show the hitherto unknown ultrahigh T1 relaxation enhancement of water protons in close proximity to a colloidal gadolinium-NC surface that is achievable by precise control of their surface structure.
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Affiliation(s)
- Noah J J Johnson
- Skaggs School of Pharmacy and Pharmaceutical Sciences and ‡Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sha He
- Skaggs School of Pharmacy and Pharmaceutical Sciences and ‡Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Viet Anh Nguyen Huu
- Skaggs School of Pharmacy and Pharmaceutical Sciences and ‡Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences and ‡Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
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26
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Jin M, Yu DG, Wang X, Geraldes CFGC, Williams GR, Bligh SWA. Electrospun Contrast-Agent-Loaded Fibers for Colon-Targeted MRI. Adv Healthc Mater 2016; 5:977-85. [PMID: 26899401 DOI: 10.1002/adhm.201500872] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/23/2015] [Indexed: 01/03/2023]
Abstract
Magnetic resonance imaging is a diagnostic tool used for detecting abnormal organs and tissues, often using Gd(III) complexes as contrast-enhancing agents. In this work, core-shell polymer fibers have been prepared using coaxial electrospinning, with the intent of delivering gadolinium (III) diethylenetriaminepentaacetate hydrate (Gd(DTPA)) selectively to the colon. The fibers comprise a poly(ethylene oxide) (PEO) core loaded with Gd(DTPA), and a Eudragit S100 shell. They are homogeneous, with distinct core-shell phases. The components in the fibers are dispersed in an amorphous fashion. The proton relaxivities of Gd(DTPA) are preserved after electrospinning. To permit easy visualization of the release of the active ingredient from the fibers, analogous materials are prepared loaded with the dye rhodamine B. Very little release is seen in a pH 1.0 buffer, while sustained release is seen at pH 7.4. The fibers thus have the potential to selectively deliver Gd(DTPA) to the colon. Mucoadhesion studies reveal there are strong adhesive forces between porcine colon mucosa and PEO from the core, and the dye-loaded fibers can be successfully used to image the porcine colon wall. The electrospun core-shell fibers prepared in this work can thus be developed as advanced functional materials for effective imaging of colonic abnormalities.
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Affiliation(s)
- Miao Jin
- UCL School of Pharmacy; University College London; 29-39 Brunswick Square; London WC1N 1AX UK
| | - Deng-Guang Yu
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093 China
| | - Xia Wang
- School of Materials Science and Engineering; University of Shanghai for Science and Technology; Shanghai 200093 China
| | - Carlos F. G. C. Geraldes
- Department of Life Sciences and Coimbra Chemistry Center - CQC; Faculty of Science and Technology; University of Coimbra; Coimbra 3000-393 Portugal
| | - Gareth R. Williams
- UCL School of Pharmacy; University College London; 29-39 Brunswick Square; London WC1N 1AX UK
| | - S. W. Annie Bligh
- Faculty of Science and Technology; University of Westminster; 115 New Cavendish Street London W1W 6UW UK
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27
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Guo C, Hu J, Bains A, Pan D, Luo K, Li N, Gu Z. The potential of peptide dendron functionalized and gadolinium loaded mesoporous silica nanoparticles as magnetic resonance imaging contrast agents. J Mater Chem B 2016; 4:2322-2331. [DOI: 10.1039/c5tb02709h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peptide dendron functionalized and gadolinium loaded mesoporous silica nanoparticles demonstrated potential as MRI contrast imaging probes owing to good biosafety and increased T1 relaxivity.
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Affiliation(s)
- Chunhua Guo
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Jiani Hu
- Department of Radiology
- Wayne State University
- Detroit
- USA
| | - Ashika Bains
- Department of Radiology
- Wayne State University
- Detroit
- USA
| | - Dayi Pan
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Kui Luo
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Ning Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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28
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Chen R, Ling D, Zhao L, Wang S, Liu Y, Bai R, Baik S, Zhao Y, Chen C, Hyeon T. Parallel Comparative Studies on Mouse Toxicity of Oxide Nanoparticle- and Gadolinium-Based T1 MRI Contrast Agents. ACS NANO 2015; 9:12425-12435. [PMID: 26567968 DOI: 10.1021/acsnano.5b05783] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Magnetic resonance imaging (MRI) contrast agents with high relaxivity are highly desirable because they can significantly increase the accuracy of diagnosis. However, they can be potentially toxic to the patients. In this study, using a mouse model, we investigate the toxic effects and subsequent tissue damage induced by three T1 MRI contrast agents: gadopentetate dimeglumine injection (GDI), a clinically used gadolinium (Gd)-based contrast agent (GBCAs), and oxide nanoparticle (NP)-based contrast agents, extremely small-sized iron oxide NPs (ESIONs) and manganese oxide (MnO) NPs. Biodistribution, hematological and histopathological changes, inflammation, and the endoplasmic reticulum (ER) stress responses are evaluated for 24 h after intravenous injection. These thorough assessments of the toxic and stress responses of these agents provide a panoramic description of safety concerns and underlying mechanisms of the toxicity of contrast agents in the body. We demonstrate that ESIONs exhibit fewer adverse effects than the MnO NPs and the clinically used GDI GBCAs, providing useful information on future applications of ESIONs as potentially safe MRI contrast agents.
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Affiliation(s)
- Rui Chen
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, Zhejiang University , Hangzhou 310058, P. R. China
- Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, Korea
- School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Korea
| | - Lin Zhao
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Shuaifei Wang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Ying Liu
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Ru Bai
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Seungmin Baik
- Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, Korea
- School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Korea
| | - Yuliang Zhao
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Chunying Chen
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, P. R. China
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, Korea
- School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Korea
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29
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Dong J, Liu M, Zhang K, Cao Y, Jiang B, Zu G, Pei R. Biocleavable Oligolysine-Grafted Poly(disulfide amine)s as Magnetic Resonance Imaging Probes. Bioconjug Chem 2015; 27:151-8. [DOI: 10.1021/acs.bioconjchem.5b00569] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jingjin Dong
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Nano
Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Min Liu
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Kunchi Zhang
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yi Cao
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Bin Jiang
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Guangyue Zu
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Renjun Pei
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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30
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Cao M, Wang P, Kou Y, Wang J, Liu J, Li Y, Li J, Wang L, Chen C. Gadolinium(III)-Chelated Silica Nanospheres Integrating Chemotherapy and Photothermal Therapy for Cancer Treatment and Magnetic Resonance Imaging. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25014-23. [PMID: 26418578 DOI: 10.1021/acsami.5b06938] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The combination of therapy and diagnosis has been emerging as a promising strategy for cancer treatment. To realize chemotherapy, photothermal therapy, and magnetic resonance imaging (MRI) in one system, we have synthesized a new magnetic nanoparticle (Gd@SiO2-DOX/ICG-PDC) integrating doxorubicin (DOX), indocyanine green (ICG), and gadolinium(III)-chelated silica nanospheres (Gd@SiO2) with a poly(diallyldimethylammonium chloride) (PDC) coating. PDC coating serves as a polymer layer to protect from quick release of drugs from the nanocarriers and increase cellular uptake. The DOX release from Gd@SiO2-DOX/ICG-PDC depends on pH and temperature. The process will be accelerated in the acidic condition than in a neutral pH 7.4. Meanwhile, upon laser irradiation, the photothermal effects promote DOX release and improve the therapeutic efficacy compared to either DOX-loaded Gd@SiO2 or ICG-loaded Gd@SiO2. Moreover, MRI results show that the Gd@SiO2-PDC nanoparticles are safe T1-type MRI contrast agents for imaging. The Gd@SiO2-PDC nanoparticles loaded with DOX and ICG can thus act as a promising theranostic platform for multimodal cancer treatment.
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Affiliation(s)
- Mingjing Cao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
- Sino-Danish Center for Education and Research , Beijing 100190, P. R. China
| | - Pengyang Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yu Kou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
- Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University , Qingdao 266003, P. R. China
| | - Jing Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yanhui Li
- Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University , Qingdao 266003, P. R. China
| | - Jiayang Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China
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31
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Pailloux SL, Nguyen S, Zhou S, Hom ME, Keyser MN, Smiles D, Raymond KN. Synthesis and chemical reactivity of a 6-Me-3,2-hydroxypyridinone dithiazolide with primary amines: a route to new hexadentate chelators for hard metal(III) ions. J Heterocycl Chem 2015; 53:1065-1073. [PMID: 27667855 DOI: 10.1002/jhet.2372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A hydroxypyridinone building block, bifunctionalized with thiazoline, has been prepared from orthogonally protected 2-(3-(benzyloxy)-4-(ethoxycarbonyl)-6-methyl-2-oxopyridin-1(2H)-yl) acetic acid. The reactivity of the dithiazolide has been explored with two primary amines, leading to the synthesis and characterization of four new hexadentate ligands. Their complexes with selected hard trivalent ions pertinent to potential molecular imaging applications have been surveyed.
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Affiliation(s)
- Sylvie L Pailloux
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Sean Nguyen
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Stephanie Zhou
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Marisa E Hom
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Michelle N Keyser
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Danil Smiles
- Department of Chemistry, University of California, Berkeley, California 94720-1460
| | - Kenneth N Raymond
- Department of Chemistry, University of California, Berkeley, California 94720-1460
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32
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Bellini RG, Guimarães AP, Pacheco MAC, Dias DM, Furtado VR, de Alencastro RB, Horta BAC. Association of the anti-tuberculosis drug rifampicin with a PAMAM dendrimer. J Mol Graph Model 2015; 60:34-42. [PMID: 26093506 DOI: 10.1016/j.jmgm.2015.05.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 05/03/2015] [Accepted: 05/22/2015] [Indexed: 12/19/2022]
Abstract
The association of the anti-tuberculosis drug rifampicin (RIF) with a 4th-generation poly(amidoamine) (G4-PAMAM) dendrimer was investigated by means of molecular dynamics simulations. The RIF load capacity was estimated to be around 20 RIF per G4-PAMAM at neutral pH. The complex formed by 20 RIF molecules and the dendrimer (RIF20-PAMAM) was subjected to 100 ns molecular dynamics (MD) simulations at two different pH conditions (neutral and acidic). The complex was found to be significantly more stable in the simulation at neutral pH compared to the simulation at low pH in which the RIF molecules were rapidly and almost simultaneously expelled to the solvent bulk. The high stability of the RIF-PAMAM complex under physiological pH and the rapid release of RIF molecules under acidic medium provide an interesting switch for drug targeting since the Mycobacterium resides within acidic domains of the macrophage. Altogether, these results suggest that, at least in terms of stability and pH-dependent release, PAMAM-like dendrimers may be considered suitable drug delivery systems for RIF and derivatives.
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Affiliation(s)
| | - Ana P Guimarães
- Departamento de Química, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Marco A C Pacheco
- Departamento de Engenharia Elétrica, PUC-Rio, Rio de Janeiro, Brazil
| | - Douglas M Dias
- Departamento de Engenharia Elétrica, PUC-Rio, Rio de Janeiro, Brazil
| | - Vanessa R Furtado
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Bruno A C Horta
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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33
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Fabrication and Characterization of Gd-DTPA-Loaded Chitosan-Poly(Acrylic Acid) Nanoparticles for Magnetic Resonance Imaging. Macromol Biosci 2015; 15:1105-14. [DOI: 10.1002/mabi.201500034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/11/2015] [Indexed: 11/07/2022]
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34
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Leiro V, Garcia JP, Tomás H, Pêgo AP. The Present and the Future of Degradable Dendrimers and Derivatives in Theranostics. Bioconjug Chem 2015; 26:1182-97. [PMID: 25826129 DOI: 10.1021/bc5006224] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Interest in dendrimer-based nanomedicines has been growing recently, as it is possible to precisely manipulate the molecular weight, chemical composition, and surface functionality of dendrimers, tuning their properties according to the desired biomedical application. However, one important concern about dendrimer-based therapeutics remains-the nondegradability under physiological conditions of the most commonly used dendrimers. Therefore, biodegradable dendrimers represent an attractive class of nanomaterials, since they present advantages over conventional nondegradable dendrimers regarding the release of the loaded molecules and the prevention of bioaccumulation of synthetic materials and subsequent cytotoxicity. Here, we present an overview of the state-of-the-art of the design of biodegradable dendritic structures, with particular focus on the hurdles regarding the use of these as vectors of drugs and nucleic acids, as well as macromolecular contrast agents.
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Affiliation(s)
| | | | - Helena Tomás
- ⊥CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9000-390 Funchal, Portugal
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35
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Borisov SM, Fischer R, Saf R, Klimant I. Exceptional Oxygen Sensing Properties of New Blue Light-Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes. ADVANCED FUNCTIONAL MATERIALS 2014; 24:6548-6550. [PMID: 27158252 PMCID: PMC4855026 DOI: 10.1002/adfm.201401754] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
New europium(III) and gadolinium(III) complexes bearing 8-hydroxyphenalenone antenna combine efficient absorption in the blue part of the spectrum and strong emission in polymers at room temperature. The Eu(III) complexes show characteristic red luminescence whereas the Gd(III) dyes are strongly phosphorescent. The luminescence quantum yields are about 20% for the Eu(III) complexes and 50% for the Gd(III) dyes. In contrast to most state-of-the-art Eu(III) complexes the new dyes are quenched very efficiently by molecular oxygen. The luminescence decay times of the Gd(III) complexes exceed 1 ms which ensures exceptional sensitivity even in polymers of moderate oxygen permeability. These sensors are particularly suitable for trace oxygen sensing and may be good substitutes for Pd(II) porphyrins. The photophysical and sensing properties can be tuned by varying the nature of the fourth ligand. The narrow-band emission of the Eu(III) allows efficient elimination of the background light and autofluorescence and is also very attractive for use e.g. in multi-analyte sensors. The highly photostable indicators incorporated in nanoparticles are promising for imaging applications. Due to the straightforward preparation and low cost of starting materials the new dyes represent a promising alternative to the state-of-the-art oxygen indicators particularly for such applications as e.g. food packaging.
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Affiliation(s)
- Sergey M. Borisov
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, NAWI Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Roland Fischer
- Institute of Inorganic Chemistry, Graz University of Technology, NAWI Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Robert Saf
- Institute of Chemistry and Technology of Materials, Graz University of Technology, NAWI Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Ingo Klimant
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, NAWI Graz, Stremayrgasse 9, 8010, Graz, Austria
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36
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Pahovnik D, Čusak A, Reven S, Žagar E. Synthesis of poly(ester-amide) dendrimers based on 2,2-Bis
(hydroxymethyl) propanoic acid and glycine. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27391] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- David Pahovnik
- National Institute of Chemistry; Laboratory for Polymer Chemistry and Technology; Hajdrihova 19 SI-1000 Ljubljana Slovenia
| | - Anja Čusak
- EN-FIST Center of Excellence; Dunajska cesta 156 SI-1000 Ljubljana Slovenia
| | - Sebastjan Reven
- Lek Pharmaceuticals d.d.; Sandoz Development Center Slovenia; Verovškova 57 SI-1526 Ljubljana
| | - Ema Žagar
- National Institute of Chemistry; Laboratory for Polymer Chemistry and Technology; Hajdrihova 19 SI-1000 Ljubljana Slovenia
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37
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Zhang Y, Wei W, Das GK, Yang Tan TT. Engineering lanthanide-based materials for nanomedicine. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2014.06.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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38
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Liu Z, Dong K, Liu J, Han X, Ren J, Qu X. Anti-biofouling polymer-decorated lutetium-based nanoparticulate contrast agents for in vivo high-resolution trimodal imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2429-38. [PMID: 24610806 DOI: 10.1002/smll.201303909] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 02/16/2014] [Indexed: 05/07/2023]
Abstract
Nanomaterials have gained considerable attention and interest in the development of novel and high-resolution contrast agents for medical diagnosis and prognosis in clinic. A classical urea-based homogeneous precipitation route that combines the merits of in situ thermal decomposition and surface modification is introduced to construct polyethylene glycol molecule (PEG)-decorated hybrid lutetium oxide nanoparticles (PEG-UCNPs). By utilizing the admirable optical and magnetic properties of the yielded PEG-UCNPs, in vivo up-conversion luminescence and T1 -enhanced magnetic resonance imaging of small animals are conducted, revealing obvious signals after subcutaneous and intravenous injection, respectively. Due to the strong X-ray absorption and high atomic number of lanthanide elements, X-ray computed-tomography imaging based on PEG-UCNPs is then designed and carried out, achieving excellent imaging outcome in animal experiments. This is the first example of the usage of hybrid lutetium oxide nanoparticles as effective nanoprobes. Furthermore, biodistribution, clearance route, as well as long-term toxicity are investigated in detail after intravenous injection in a murine model, indicating the overall safety of PEG-UCNPs. Compared with previous lanthanide fluorides, our nanoprobes exhibit more advantages, such as facile construction process and nearly total excretion from the animal body within a month. Taken together, these results promise the use of PEG-UCNPs as a safe and efficient nanoparticulate contrast agent for potential application in multimodal imaging.
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Affiliation(s)
- Zhen Liu
- State Key Laboratory of Rare Earth Resources, Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
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39
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Affiliation(s)
- Marie C. Heffern
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Lauren M. Matosziuk
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Thomas J. Meade
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
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40
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Sun M, Zhang H, Hu X, Liu B, Liu Y. Hyperbranched Supramolecular Polymer of Tris(permethyl-β-cyclodextrin)s with Porphyrins: Characterization and Magnetic Resonance Imaging. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400090] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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Berwick MR, Lewis DJ, Jones AW, Parslow RA, Dafforn TR, Cooper HJ, Wilkie J, Pikramenou Z, Britton MM, Peacock AFA. De novo design of Ln(III) coiled coils for imaging applications. J Am Chem Soc 2014; 136:1166-9. [PMID: 24405157 PMCID: PMC3950886 DOI: 10.1021/ja408741h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
A new
peptide sequence (MB1) has been designed which, in the presence
of a trivalent lanthanide ion, has been programmed to self-assemble
to form a three stranded metallo-coiled coil, Ln(III)(MB1)3. The binding site has been incorporated into the hydrophobic core
using natural amino acids, restricting water access to the lanthanide.
The resulting terbium coiled coil displays luminescent properties
consistent with a lack of first coordination sphere water molecules.
Despite this the gadolinium coiled coil, the first to be reported,
displays promising magnetic resonance contrast capabilities.
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Affiliation(s)
- Matthew R Berwick
- School of Chemistry and ‡School of Biosciences, University of Birmingham , Edgbaston, B15 2TT, United Kingdom
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42
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Lux J, Chan M, Elst LV, Schopf E, Mahmoud E, Laurent S, Almutairi A. Metal Chelating Crosslinkers Form Nanogels with High Chelation Stability. J Mater Chem B 2013; 1:6359-6364. [PMID: 24505553 PMCID: PMC3910426 DOI: 10.1039/c3tb21104e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a series of hydrogel nanoparticles (nanogels) incorporating either acyclic or cyclic metal chelates as crosslinkers. These crosslinkers are used to formulate polyacrylamide-based nanogels (diameter 50 to 85 nm) yielding contrast agents with enhanced relaxivities (up to 6-fold greater than Dotarem®), because this nanogel structure slows the chelator's tumbling frequency and allows fast water exchange. Importantly, these nanogels also stabilize Gd3+ within the chelator thermodynamically and kinetically against metal displacement through transmetallation, which should reduce toxicity associated with release of free Gd3+. This chelation stability suggests that the chelate crosslinker strategy may prove useful for other applications of metal-chelating nanoparticles in medicine, including other imaging modalities and radiotherapy.
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Affiliation(s)
- Jacques Lux
- Skaggs School of Pharmacy and Pharmaceutical Sciences. KACST-UCSD Center of Excellence in Nanomedicine. Laboratory of Bioresponsive Materials, University of California, San Diego. 9500 Gilman Dr., 0600, PSB 2270, La Jolla, CA-92093-0600, United States
| | - Minnie Chan
- Skaggs School of Pharmacy and Pharmaceutical Sciences. KACST-UCSD Center of Excellence in Nanomedicine. Laboratory of Bioresponsive Materials, University of California, San Diego. 9500 Gilman Dr., 0600, PSB 2270, La Jolla, CA-92093-0600, United States
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium.Address, Address, Town, Country
| | - Eric Schopf
- Skaggs School of Pharmacy and Pharmaceutical Sciences. KACST-UCSD Center of Excellence in Nanomedicine. Laboratory of Bioresponsive Materials, University of California, San Diego. 9500 Gilman Dr., 0600, PSB 2270, La Jolla, CA-92093-0600, United States
| | - Enas Mahmoud
- Skaggs School of Pharmacy and Pharmaceutical Sciences. KACST-UCSD Center of Excellence in Nanomedicine. Laboratory of Bioresponsive Materials, University of California, San Diego. 9500 Gilman Dr., 0600, PSB 2270, La Jolla, CA-92093-0600, United States
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium.Address, Address, Town, Country
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences. KACST-UCSD Center of Excellence in Nanomedicine. Laboratory of Bioresponsive Materials, University of California, San Diego. 9500 Gilman Dr., 0600, PSB 2270, La Jolla, CA-92093-0600, United States
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43
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Bruckman MA, Yu X, Steinmetz NF. Engineering Gd-loaded nanoparticles to enhance MRI sensitivity via T(1) shortening. NANOTECHNOLOGY 2013; 24:462001. [PMID: 24158750 PMCID: PMC3895399 DOI: 10.1088/0957-4484/24/46/462001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Magnetic resonance imaging (MRI) is a noninvasive imaging technique capable of obtaining high-resolution anatomical images of the body. Major drawbacks of MRI are the low contrast agent sensitivity and inability to distinguish healthy tissue from diseased tissue, making early detection challenging. To address this technological hurdle, paramagnetic contrast agents have been developed to increase the longitudinal relaxivity, leading to an increased signal-to-noise ratio. This review focuses on methods and principles that enabled the design and engineering of nanoparticles to deliver contrast agents with enhanced ionic relaxivities. Different engineering strategies and nanoparticle platforms will be compared in terms of their manufacturability, biocompatibility properties, and their overall potential to make an impact in clinical MR imaging.
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Affiliation(s)
- Michael A. Bruckman
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Xin Yu
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Materials Science and Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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44
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Carné-Sánchez A, Bonnet CS, Imaz I, Lorenzo J, Tóth É, Maspoch D. Relaxometry Studies of a Highly Stable Nanoscale Metal–Organic Framework Made of Cu(II), Gd(III), and the Macrocyclic DOTP. J Am Chem Soc 2013; 135:17711-4. [DOI: 10.1021/ja4094378] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arnau Carné-Sánchez
- Institut
Catala de Nanociencia i Nanotecnologia, Esfera UAB, 08193 Bellaterra, Spain
| | - Célia S. Bonnet
- Centre
de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071 Orléans, France
| | - Inhar Imaz
- Institut
Catala de Nanociencia i Nanotecnologia, Esfera UAB, 08193 Bellaterra, Spain
| | - Julia Lorenzo
- Institut
de Biotecnologia i Biomedicina, UAB, 08193 Bellaterra, Spain
| | - Éva Tóth
- Centre
de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071 Orléans, France
| | - Daniel Maspoch
- Institut
Catala de Nanociencia i Nanotecnologia, Esfera UAB, 08193 Bellaterra, Spain
- Institució Catalana de Recerca i Estudis Avançats, 08100 Barcelona, Spain
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45
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Nasr-Esfahani M, Mohammadpoor-Baltork I, Khosropour AR, Moghadam M, Mirkhani V, Tangestaninejad S. Synthesis and characterization of Cu(II) containing nanosilica triazine dendrimer: A recyclable nanocomposite material for the synthesis of benzimidazoles, benzothiazoles, bis-benzimidazoles and bis-benzothiazoles. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.08.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Goswami LN, Ma L, Kueffer PJ, Jalisatgi SS, Hawthorne MF. Synthesis and relaxivity studies of a DOTA-based nanomolecular chelator assembly supported by an icosahedral closo-B₁₂²⁻ core for MRI: a click chemistry approach. Molecules 2013; 18:9034-48. [PMID: 23899836 PMCID: PMC6270972 DOI: 10.3390/molecules18089034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 07/23/2013] [Accepted: 07/23/2013] [Indexed: 11/16/2022] Open
Abstract
An icosahedral closo-B₁₂²⁻ scaffold based nano-sized assembly capable of carrying a high payload of Gd³⁺-chelates in a sterically crowded configuration is developed by employing the azide-alkyne click reaction. The twelve copies of DO3A-t-Bu-ester ligands were covalently attached to an icosahedral closo-B₁₂²⁻ core via suitable linkers through click reaction. This nanomolecular structure supporting a high payload of Gd³⁺-chelate is a new member of the closomer MRI contrast agents that we are currently developing in our laboratory. The per Gd ion relaxivity (r₁) of the newly synthesized MRI contrast agent was obtained in PBS, 2% tween/PBS and bovine calf serum using a 7 Tesla micro MRI instrument and was found to be slightly higher (r₁ = 4.7 in PBS at 25 °C) compared to the clinically used MRI contrast agents Omniscan (r₁ = 4.2 in PBS at 25 °C) and ProHance (r₁ = 3.1 in PBS at 25 °C).
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Affiliation(s)
| | | | | | | | - M. Frederick Hawthorne
- Author to whom correspondence should be address; E-Mail: ; Tel.: +1-573-882-7016; Fax: +1-573-884-6900
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47
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Cheng W, Ping Y, Zhang Y, Chuang KH, Liu Y. Magnetic resonance imaging (MRI) contrast agents for tumor diagnosis. JOURNAL OF HEALTHCARE ENGINEERING 2013; 4:23-45. [PMID: 23502248 DOI: 10.1260/2040-2295.4.1.23] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review focuses on MRI contrast agents for tumor diagnosis. Several types of low molecular weight Gd3+-based complexes and dextran-coated superparamagnetic iron oxide (SPIO) nanoparticles have been used for clinical tumor diagnosis as longitudinal relaxation time (T1) and transverse relaxation time (T2) MRI contrast agents, respectively. To further improve the sensitivity of MRI, new types of chelates for T1 MRI contrast agents and combination of low molecular weight T1 MRI contrast agents with different types of carriers have been investigated. Different types of materials for forming secure coating layers of SPIO and novel superparamagnetic particles with higher relaxivity values have been explored. Various types of ligands were applied to improve the capability to target tumor for both T1 and T2 contrast agents. Furthermore, MRI contrast agents for detection of tumor metabolism were also pursued.
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Affiliation(s)
- Weiren Cheng
- Institute of Materials Research and Engineering, Singapore Singapore Bioimaging Consortium, Singapore
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48
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Sun M, Zhang HY, Liu BW, Liu Y. Construction of a Supramolecular Polymer by Bridged Bis(permethyl-β-cyclodextrin)s with Porphyrins and Its Highly Efficient Magnetic Resonance Imaging. Macromolecules 2013. [DOI: 10.1021/ma400806s] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mo Sun
- Department of Chemistry, State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Heng-Yi Zhang
- Department of Chemistry, State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Bo-Wen Liu
- Department of Chemistry, State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yu Liu
- Department of Chemistry, State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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49
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Tang J, Sheng Y, Hu H, Shen Y. Macromolecular MRI contrast agents: Structures, properties and applications. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2012.07.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Goswami LN, Ma L, Chakravarty S, Cai Q, Jalisatgi SS, Hawthorne MF. Discrete nanomolecular polyhedral borane scaffold supporting multiple gadolinium(III) complexes as a high performance MRI contrast agent. Inorg Chem 2013; 52:1694-700. [PMID: 23126285 PMCID: PMC3577990 DOI: 10.1021/ic3017613] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An icosahedral closo-B(12)(2-) scaffold supports 12 copies of Gd(3+)-chelate held in close proximity with each other by suitable linkers which employ azide-alkyne click chemistry. This design is the first member of a new class of polyfunctional MRI contrast agents carrying a high payload of Gd(3+)-chelate in a sterically constrained configuration. The resulting contrast agent shows higher relaxivity values at high magnetic fields. MRI contrast agents currently in use are not as effective in this regard, presumably due to a lack of steric constraint of gadolinium centers and lower water exchange rates. In vivo MRI studies in mice show excellent contrast enhancement even at one-seventh of the safe clinical dose (0.04 mmol Gd/kg) for up to a 1 h exposure.
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Affiliation(s)
- Lalit N. Goswami
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
| | - Lixin Ma
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
| | - Shatadru Chakravarty
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
| | - Quanyu Cai
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
| | - Satish S. Jalisatgi
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
| | - M. Frederick Hawthorne
- International Institute of Nano and Molecular Medicine, School of Medicine, University of Missouri, Columbia, Missouri 65211-3450
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