1
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Marasini S, Yue H, Ho SL, Jung KH, Park JA, Cha H, Ghazanfari A, Ahmad MY, Liu S, Jang YJ, Miao X, Chae KS, Chang Y, Lee GH. d
-Glucuronic Acid-Coated Ultrasmall Paramagnetic Ln2
O3
(Ln = Tb, Dy, and Ho) Nanoparticles: Magnetic Properties, Water Proton Relaxivities, and Fluorescence Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900378] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shanti Marasini
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Huan Yue
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Son Long Ho
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Ki-Hye Jung
- Division of RI-Convergence Research; Korea Institute of Radiological Medical Science; 01817 Seoul South Korea
| | - Ji Ae Park
- Division of RI-Convergence Research; Korea Institute of Radiological Medical Science; 01817 Seoul South Korea
| | - Hyunsil Cha
- Department of Molecular Medicine and Medical & Biological Engineering and DNN; School of Medicine, KNU and Hospital; 41566 Taegu South Korea
| | - Adibehalsadat Ghazanfari
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Mohammad Yaseen Ahmad
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Shuwen Liu
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Yeong Ji Jang
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Xu Miao
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Kwon-Seok Chae
- Department of Biology Education and; DNN, Teachers' College; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Yongmin Chang
- Department of Molecular Medicine and Medical & Biological Engineering and DNN; School of Medicine, KNU and Hospital; 41566 Taegu South Korea
| | - Gang Ho Lee
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
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2
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Zhao Y, Chen L, Swager TM. Simultaneous Identification of Neutral and Anionic Species in Complex Mixtures without Separation. Angew Chem Int Ed Engl 2016; 55:917-21. [PMID: 26756442 PMCID: PMC4905770 DOI: 10.1002/anie.201508085] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 01/15/2023]
Abstract
A chemosensory system is reported that operates without the need for separation techniques and is capable of identifying anions and structurally similar bioactive molecules. In this strategy, the coordination of analytes to a metal complex with an open binding cleft generates "static structures" on the NMR timescale. Unique signals are created by strategically placing fluorine atoms in close proximity to bound analytes so that small structural differences induce distinct (19)F NMR shifts that can be used to identify each analyte. The utility of this method is illustrated by quantifying caffeine levels in coffee, by identifying ingredients in tea and energy drinks, and by discriminating between multiple biogenic amines with remote structural differences six carbon atoms away from the binding site. We further demonstrate the simultaneous identification of multiple neutral and anionic species in a complex mixture.
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Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Lily Chen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA.
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3
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Zhang C, Bu W, Ni D, Zhang S, Li Q, Yao Z, Zhang J, Yao H, Wang Z, Shi J. Synthesis of Iron Nanometallic Glasses and Their Application in Cancer Therapy by a Localized Fenton Reaction. Angew Chem Int Ed Engl 2016; 55:2101-6. [DOI: 10.1002/anie.201510031] [Citation(s) in RCA: 664] [Impact Index Per Article: 83.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Chen Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Wenbo Bu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Dalong Ni
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Shenjian Zhang
- Department of Radiology; Shanghai Cancer Hospital; Fudan University; 270 Dong-an Road Shanghai 200032 P. R. China
| | - Qing Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Zhenwei Yao
- Department of Radiology; Huashan Hospital; Fudan University; 12 Urumqizhong Road Shanghai 200040 P. R. China
| | - Jiawen Zhang
- Department of Radiology; Huashan Hospital; Fudan University; 12 Urumqizhong Road Shanghai 200040 P. R. China
| | - Heliang Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Zheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
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4
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Zhang C, Bu W, Ni D, Zhang S, Li Q, Yao Z, Zhang J, Yao H, Wang Z, Shi J. Synthesis of Iron Nanometallic Glasses and Their Application in Cancer Therapy by a Localized Fenton Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510031] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chen Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Wenbo Bu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Dalong Ni
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Shenjian Zhang
- Department of Radiology; Shanghai Cancer Hospital; Fudan University; 270 Dong-an Road Shanghai 200032 P. R. China
| | - Qing Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Zhenwei Yao
- Department of Radiology; Huashan Hospital; Fudan University; 12 Urumqizhong Road Shanghai 200040 P. R. China
| | - Jiawen Zhang
- Department of Radiology; Huashan Hospital; Fudan University; 12 Urumqizhong Road Shanghai 200040 P. R. China
| | - Heliang Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Zheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; 1295 Ding-xi Road Shanghai 200050 P. R. China
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5
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Casterou G, Collière V, Lecante P, Coppel Y, Eliat PA, Gauffre F, Kahn ML. Improved Transversal Relaxivity for Highly Crystalline Nanoparticles of Pure γ-Fe2
O3
Phase. Chemistry 2015; 21:18855-61. [DOI: 10.1002/chem.201502905] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 11/07/2022]
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6
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Zhao Y, Chen L, Swager TM. Simultaneous Identification of Neutral and Anionic Species in Complex Mixtures without Separation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508085] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yanchuan Zhao
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Lily Chen
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Timothy M. Swager
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave Cambridge MA 02139 USA
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7
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Chen YW, Hwang DW. Multi-chromatic magnetic resonance imaging using frequency lock-in suppression. NMR IN BIOMEDICINE 2015; 28:1187-1195. [PMID: 26282163 DOI: 10.1002/nbm.3361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/02/2015] [Accepted: 06/15/2015] [Indexed: 06/04/2023]
Abstract
This study developed a multi-chromatic MR contrast using the frequency lock-in technique. An electronic feedback device that generates a specific narrow-frequency-bandwidth RF field is presented. The effects of this RF field on MR images are assessed both theoretically and experimentally. Spectroscopy and imaging experiments were performed. Frequency tuning allowed the selected spectral peak to be suppressed. Phantom tests using methanol, ethanol, and water showed different contrasts using different feedback RF field frequencies. The frequency lock-in was also found to help differentiate among the small structural variations in biological tissues. The contrast achieved in in vivo mouse brain imaging using the lock-in suppressed technique indicated a better spatial discrimination when compared with that achieved using conventional imaging methods, especially in the hippocampus region. Selective lock-in suppressed imaging is a new approach to provide frequency information in MRI; rather than determining the evolution of image contrast over time, this approach allows small susceptibility variations to be distinguished by tuning the frequency of the narrow-bandwidth lock-in RF field. A new and enhanced contrast can be achieved using this technique.
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Affiliation(s)
- Yu-Wen Chen
- Department of Chemistry and Biochemistry, National Chung Cheng University, Min-Hsiung Township, Chiayi, Taiwan
| | - Dennis W Hwang
- Department of Chemistry and Biochemistry, National Chung Cheng University, Min-Hsiung Township, Chiayi, Taiwan
- Center for Nano Bio-detection, AIM-HI, National Chung Cheng University, Min-Hsiung Township, Chiayi, Taiwan
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8
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Kim DJ, Li Y, Kim YJ, Hur NH, Seo WS. A Highly Stable and Magnetically Recyclable Nanocatalyst System: Mesoporous Silica Spheres Embedded with FeCo/Graphitic Shell Magnetic Nanoparticles and Pt Nanocatalysts. Chem Asian J 2015; 10:2755-61. [PMID: 26312570 DOI: 10.1002/asia.201500773] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Indexed: 11/07/2022]
Abstract
We have developed a highly stable and magnetically recyclable nanocatalyst system for alkene hydrogenation. The materials are composed of mesoporous silica spheres (MSS) embedded with FeCo/graphitic shell (FeCo/GC) magnetic nanoparticles and Pt nanocatalysts (Pt-FeCo/GC@MSS). The Pt-FeCo/GC@MSS have superparamagnetism at room temperature and show type IV isotherm typical for mesoporous silica, thereby ensuring a large enough inner space (surface area of 235.3 m(2) g(-1), pore volume of 0.165 cm(3) g(-1), and pore diameter of 2.8 nm) to undergo catalytic reactions. We have shown that the Pt-FeCo/GC@MSS system readily converts cyclohexene into cyclohexane, which is the only product isolated and Pt-FeCo/GC@MSS can be seperated very quickly by an external magnetic field after the catalytic reaction is finished. We have demonstrated that the recycled Pt-FeCo/GC@MSS can be reused further for the same hydrogenation reaction at least four times without loss in the initial catalytic activity.
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Affiliation(s)
- Da Jeong Kim
- Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Yan Li
- Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Yun Jin Kim
- Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Nam Hwi Hur
- Department of Chemistry, Sogang University, Seoul, 121-742, Korea
| | - Won Seok Seo
- Department of Chemistry, Sogang University, Seoul, 121-742, Korea.
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9
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Lee HJ, We J, Kim JO, Kim D, Cha W, Lee E, Sohn J, Oh M. Morphological and Structural Evolutions of Metal-Organic Framework Particles from Amorphous Spheres to Crystalline Hexagonal Rods. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504873] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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Lee HJ, We J, Kim JO, Kim D, Cha W, Lee E, Sohn J, Oh M. Morphological and Structural Evolutions of Metal-Organic Framework Particles from Amorphous Spheres to Crystalline Hexagonal Rods. Angew Chem Int Ed Engl 2015; 54:10564-8. [DOI: 10.1002/anie.201504873] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Indexed: 12/31/2022]
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11
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Schick I, Lorenz S, Gehrig D, Schilmann AM, Bauer H, Panthöfer M, Fischer K, Strand D, Laquai F, Tremel W. Multifunctional two-photon active silica-coated Au@MnO Janus particles for selective dual functionalization and imaging. J Am Chem Soc 2014; 136:2473-83. [PMID: 24460244 DOI: 10.1021/ja410787u] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Monodisperse multifunctional and nontoxic Au@MnO Janus particles with different sizes and morphologies were prepared by a seed-mediated nucleation and growth technique with precise control over domain sizes, surface functionalization, and dye labeling. The metal oxide domain could be coated selectively with a thin silica layer, leaving the metal domain untouched. In particular, size and morphology of the individual (metal and metal oxide) domains could be controlled by adjustment of the synthetic parameters. The SiO2 coating of the oxide domain allows biomolecule conjugation (e.g., antibodies, proteins) in a single step for converting the photoluminescent and superparamagnetic Janus nanoparticles into multifunctional efficient vehicles for theranostics. The Au@MnO@SiO2 Janus particles were characterized using high-resolution transmission electron microscopy (HR-)TEM, powder X-ray diffraction (PXRD), optical (UV-vis) spectroscopy, confocal laser fluorescence scanning microscopy (CLSM), and dynamic light scattering (DLS). The functionalized nanoparticles were stable in buffer solution or serum, showing no indication of aggregation. Biocompatibility and potential biomedical applications of the Au@MnO@SiO2 Janus particles were assayed by a cell viability analysis by coincubating the Au@MnO@SiO2 Janus particles with Caki 1 and HeLa cells. Time-resolved fluorescence spectroscopy in combination with CLSM revealed the silica-coated Au@MnO@SiO2 Janus particles to be highly two-photon active; no indication for an electronic interaction between the dye molecules incorporated in the silica shell surrounding the MnO domains and the attached Au domains was found; fluorescence quenching was observed when dye molecules were bound directly to the Au domains.
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Affiliation(s)
- Isabel Schick
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität , Duesbergweg 10-14, 55128 Mainz, Germany
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12
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Liang R, Tian R, Liu Z, Yan D, Wei M. Preparation of Monodisperse Ferrite Nanocrystals with Tunable Morphology and Magnetic Properties. Chem Asian J 2014; 9:1161-7. [DOI: 10.1002/asia.201301590] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Indexed: 01/05/2023]
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13
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Lee SB, Kim HL, Jeong HJ, Lim ST, Sohn MH, Kim DW. Mesoporous Silica Nanoparticle Pretargeting for PET Imaging Based on a Rapid Bioorthogonal Reaction in a Living Body. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Lee SB, Kim HL, Jeong HJ, Lim ST, Sohn MH, Kim DW. Mesoporous Silica Nanoparticle Pretargeting for PET Imaging Based on a Rapid Bioorthogonal Reaction in a Living Body. Angew Chem Int Ed Engl 2013; 52:10549-52. [DOI: 10.1002/anie.201304026] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/02/2013] [Indexed: 11/11/2022]
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15
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Barge A, Caporaso M, Cravotto G, Martina K, Tosco P, Aime S, Carrera C, Gianolio E, Pariani G, Corpillo D. Design and Synthesis of a γ1β8-Cyclodextrin Oligomer: A New Platform with Potential Application as a Dendrimeric Multicarrier. Chemistry 2013; 19:12086-92. [DOI: 10.1002/chem.201301215] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 06/16/2013] [Indexed: 11/07/2022]
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16
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Huang X, Huang G, Zhang S, Sagiyama K, Togao O, Ma X, Wang Y, Li Y, Soesbe TC, Sumer BD, Takahashi M, Sherry AD, Gao J. Multi-Chromatic pH-Activatable19F-MRI Nanoprobes with Binary ON/OFF pH Transitions and Chemical-Shift Barcodes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301135] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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17
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Huang X, Huang G, Zhang S, Sagiyama K, Togao O, Ma X, Wang Y, Li Y, Soesbe TC, Sumer BD, Takahashi M, Sherry AD, Gao J. Multi-chromatic pH-activatable 19F-MRI nanoprobes with binary ON/OFF pH transitions and chemical-shift barcodes. Angew Chem Int Ed Engl 2013; 52:8074-8. [PMID: 23788453 DOI: 10.1002/anie.201301135] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 03/26/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaonan Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvds, Dallas, TX 75390, USA
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18
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Choi IA, Li Y, Kim DJ, Pal M, Cho JH, Lee K, Jung MH, Lee C, Seo WS. Ultra-small, Uniform, and Single bcc-Phased FexCo1-x/Graphitic Shell Nanocrystals forT1Magnetic Resonance Imaging Contrast Agents. Chem Asian J 2012; 8:290-5. [DOI: 10.1002/asia.201200950] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Indexed: 11/08/2022]
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19
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Zhang Y, Vijayaragavan V, Das GK, Bhakoo KK, Tan TTY. Single-Phase NaDyF4:Tb3+ Nanocrystals as Multifunctional Contrast Agents in High-Field Magnetic Resonance and Optical Imaging. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101203] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Shukoor MI, Natalio F, Tahir MN, Barz M, Weber S, Brochhausen C, Zentel R, Schreiber LM, Brieger J, Tremel W. CpG-DNA loaded multifunctional MnO nanoshuttles for TLR9-specific cellular cargo delivery, selective immune-activation and MRI. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16903g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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21
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Schladt TD, Koll K, Prüfer S, Bauer H, Natalio F, Dumele O, Raidoo R, Weber S, Wolfrum U, Schreiber LM, Radsak MP, Schild H, Tremel W. Multifunctional superparamagnetic MnO@SiO2 core/shell nanoparticles and their application for optical and magnetic resonance imaging. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15320c] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Xu F, Cheng C, Chen DX, Gu H. Magnetite nanocrystal clusters with ultra-high sensitivity in magnetic resonance imaging. Chemphyschem 2011; 13:336-41. [PMID: 22095763 DOI: 10.1002/cphc.201100548] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2011] [Indexed: 11/06/2022]
Abstract
Magnetic iron oxide particles are widely used as contrast agents to improve the sensitivity of magnetic resonance imaging (MRI). Their efficiency in MRI is usually quantified by transverse relaxivity (r(2)) in solution. Herein, we synthesized a series of magnetite nanocrystal clusters (MNCs) with ultra-high transverse relaxivity by a polyol process and studied the relationship between r(2) and size of the MNCs. The sizes of MNCs can be tuned over a wide range from 13 to 179 nm. The r(2) of MNC suspensions as a function of the size of the cluster was analyzed and compared with a theoretical model. We found that MNCs of 64 nm had an r(2) value of 650 mM(-1) s(-1), which was more than three times that of the commercial contrast agent and was among the highest reported for iron oxide materials. Compared with the theoretical model, the r(2) value of the MNC suspension is approximately 0.93 of the theoretical prediction. Imaging of the MNC suspensions was performed in a clinical 1.5 T MRI instrument and a comparison was made between MNCs and commercial contrast agents. MRI indicated that the decrease of signal intensity induced by MNCs was in proportion to the r(2) value, which was in accordance with theoretical predictions. These results demonstrate that MNCs with ultra-high transverse relaxivity and tunable size are promising candidates for molecular imaging and clinical diagnosis in MRI.
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Affiliation(s)
- Fangjie Xu
- School of Biomedical Engineering and Med-X Research Institute, Huashan Road Shanghai Jiaotong University, 200030, China
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23
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Chen Y, Chen H, Sun Y, Zheng Y, Zeng D, Li F, Zhang S, Wang X, Zhang K, Ma M, He Q, Zhang L, Shi J. Multifunctional Mesoporous Composite Nanocapsules for Highly Efficient MRI-Guided High-Intensity Focused Ultrasound Cancer Surgery. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106180] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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Chen Y, Chen H, Sun Y, Zheng Y, Zeng D, Li F, Zhang S, Wang X, Zhang K, Ma M, He Q, Zhang L, Shi J. Multifunctional Mesoporous Composite Nanocapsules for Highly Efficient MRI-Guided High-Intensity Focused Ultrasound Cancer Surgery. Angew Chem Int Ed Engl 2011; 50:12505-9. [DOI: 10.1002/anie.201106180] [Citation(s) in RCA: 157] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Indexed: 01/05/2023]
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25
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Kim T, Cho EJ, Chae Y, Kim M, Oh A, Jin J, Lee ES, Baik H, Haam S, Suh JS, Huh YM, Lee K. Urchin-Shaped Manganese Oxide Nanoparticles as pH-Responsive Activatable T1 Contrast Agents for Magnetic Resonance Imaging. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103108] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Kim T, Cho EJ, Chae Y, Kim M, Oh A, Jin J, Lee ES, Baik H, Haam S, Suh JS, Huh YM, Lee K. Urchin-shaped manganese oxide nanoparticles as pH-responsive activatable T1 contrast agents for magnetic resonance imaging. Angew Chem Int Ed Engl 2011; 50:10589-93. [PMID: 21928456 DOI: 10.1002/anie.201103108] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Taekhoon Kim
- Department of Chemistry, Korea University, Seoul 136-701, Korea
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27
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Ling D, Park W, Park YI, Lee N, Li F, Song C, Yang SG, Choi SH, Na K, Hyeon T. Multiple-Interaction Ligands Inspired by Mussel Adhesive Protein: Synthesis of Highly Stable and Biocompatible Nanoparticles. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ling D, Park W, Park YI, Lee N, Li F, Song C, Yang SG, Choi SH, Na K, Hyeon T. Multiple-Interaction Ligands Inspired by Mussel Adhesive Protein: Synthesis of Highly Stable and Biocompatible Nanoparticles. Angew Chem Int Ed Engl 2011; 50:11360-5. [DOI: 10.1002/anie.201101521] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 08/22/2011] [Indexed: 11/11/2022]
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Amstad E, Fischer H, Gehring AU, Textor M, Reimhult E. Magnetic Decoupling of Surface Fe3+ in Magnetite Nanoparticles upon Nitrocatechol-Anchored Dispersant Binding. Chemistry 2011; 17:7396-8. [DOI: 10.1002/chem.201003504] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Indexed: 11/08/2022]
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Tan H, Wang M, Yang CT, Pant S, Bhakoo KK, Wong SY, Chen ZK, Li X, Wang J. Silica Nanocapsules of Fluorescent Conjugated Polymers and Superparamagnetic Nanocrystals for Dual-Mode Cellular Imaging. Chemistry 2011; 17:6696-706. [DOI: 10.1002/chem.201003632] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 03/22/2011] [Indexed: 11/08/2022]
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Abstract
Biological imaging applications often employ molecular probes or nanoparticles for enhanced contrast. However, resolution and detection are still often limited by the intrinsic heterogeneity of the sample, which can produce high levels of background that obscure the signals of interest. Herein, we describe approaches to overcome this obstacle based on the concept of dynamic contrast: a strategy for elucidating signals by the suppression or removal of background noise. Dynamic contrast mechanisms can greatly reduce the loading requirement of contrast agents, and may be especially useful for single-probe imaging. Dynamic contrast modalities are also platform-independent, and can enhance the performance of sophisticated biomedical imaging systems or simple optical microscopes alike. Dynamic contrast is performed in two stages: 1) a signal modulation scheme to introduce time-dependent changes in amplitude or phase, and 2) a demodulation step for signal recovery. Optical signals can be coupled with magnetic nanoparticles, photoswitchable probes, or plasmon-resonant nanostructures for modulation by magnetomotive, photonic, or photothermal mechanisms, respectively. With respect to image demodulation, many of the strategies developed for signal processing in electronics and communication technologies can also be applied toward the editing of digital images. The image-processing step can be as simple as differential imaging, or may involve multiple reference points for deconvolution by using cross-correlation algorithms. Periodic signals are particularly amenable to image demodulation strategies based on Fourier transform; the contrast of the demodulated signal increases with acquisition time, and modulation frequencies in the kHz range are possible. Dynamic contrast is an emerging topic with considerable room for development, both with respect to molecular or nanoscale probes for signal modulation, and also to methods for more efficient image processing and editing.
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Affiliation(s)
| | - Alexander Wei
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907-2084 (USA)
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Schladt TD, Shukoor MI, Schneider K, Tahir MN, Natalio F, Ament I, Becker J, Jochum FD, Weber S, Köhler O, Theato P, Schreiber LM, Sönnichsen C, Schröder HC, Müller WEG, Tremel W. Au@MnO nanoflowers: hybrid nanocomposites for selective dual functionalization and imaging. Angew Chem Int Ed Engl 2010; 49:3976-80. [PMID: 20408148 DOI: 10.1002/anie.200906689] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas D Schladt
- Institut für Anorganische Chemie und Analytische Chemie, Johannes-Gutenberg-Universität, Duesbergweg 10-14, 55099 Mainz, Germany
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Chen F, Zhang S, Bu W, Liu X, Chen Y, He Q, Zhu M, Zhang L, Zhou L, Peng W, Shi J. A “Neck-Formation” Strategy for an Antiquenching Magnetic/Upconversion Fluorescent Bimodal Cancer Probe. Chemistry 2010; 16:11254-60. [DOI: 10.1002/chem.201000525] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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34
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Chen F, Bu W, Chen Y, Fan Y, He Q, Zhu M, Liu X, Zhou L, Zhang S, Peng W, Shi J. A sub-50-nm monosized superparamagnetic Fe3O4@SiO2 T2-weighted MRI contrast agent: highly reproducible synthesis of uniform single-loaded core-shell nanostructures. Chem Asian J 2010; 4:1809-1816. [PMID: 19902450 DOI: 10.1002/asia.200900276] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Oleic acid stabilized superparamagnetic iron oxide nanoparticles (SPION) were selected as the cores for fabrication of sub-50-nm monodisperse single-loaded SPION@SiO2 core-shell nanostructures. Parameters that influence the formation of SPION@SiO2 in the water-in-oil reverse microemulsion system have been systematically investigated. The sufficiently high concentration of well-dispersed SPION, together with an appropriately low injection rate of tetraethoxysilane, were found to be the keys to efficiently prevent the homogeneous nucleation of silica and obtain a high-quality single-loaded core-shell nanocomposite. A more detailed mechanism for incorporating oleic acid capped inorganic functional nanoparticles into silica is proposed on the basis of previous reports and our new experimental results. Finally, the as-synthesized SPION@SiO2 nanospheres are exploited as an MRI-enhanced contrast agent, and their contrast effect in solution is tested by using a clinical MRI instrument.
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Affiliation(s)
- Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Wenbo Bu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Yuchi Fan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Qianjun He
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Min Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
| | - Xiaohang Liu
- Department of Radiology, Shanghai Cancer Hospital, Fudan University, Shanghai 200032 (P.R. China)
| | - Liangping Zhou
- Department of Radiology, Shanghai Cancer Hospital, Fudan University, Shanghai 200032 (P.R. China)
| | - Shengjian Zhang
- Department of Radiology, Shanghai Cancer Hospital, Fudan University, Shanghai 200032 (P.R. China)
| | - Weijun Peng
- Department of Radiology, Shanghai Cancer Hospital, Fudan University, Shanghai 200032 (P.R. China)
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (P.R. China), Fax:(+86) 21-52413122
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Schladt T, Shukoor M, Schneider K, Tahir M, Natalio F, Ament I, Becker J, Jochum F, Weber S, Köhler O, Theato P, Schreiber L, Sönnichsen C, Schröder H, Müller W, Tremel W. Au@MnO-“Nanoblumen” - Hybrid-Nanokomposite zur selektiven dualen Funktionalisierung und Bildgebung. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906689] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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36
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37
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38
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Schladt TD, Schneider K, Shukoor MI, Natalio F, Bauer H, Tahir MN, Weber S, Schreiber LM, Schröder HC, Müller WEG, Tremel W. Highly soluble multifunctional MnO nanoparticles for simultaneous optical and MRI imaging and cancer treatment using photodynamic therapy. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01465f] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Wang H, Wang S, Su H, Chen KJ, Armijo A, Lin WY, Wang Y, Sun J, Kamei KI, Czernin J, Radu C, Tseng HR. A Supramolecular Approach for Preparation of Size-Controlled Nanoparticles. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900063] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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40
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Wang C, Chen J, Talavage T, Irudayaraj J. Gold nanorod/Fe3O4 nanoparticle "nano-pearl-necklaces" for simultaneous targeting, dual-mode imaging, and photothermal ablation of cancer cells. Angew Chem Int Ed Engl 2009; 48:2759-63. [PMID: 19283813 DOI: 10.1002/anie.200805282] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Gold and pearls: Multifunctional nanoparticles, each composed of a single, amine-modified gold nanorod, decorated with multiple "pearls" of Fe(3)O(4) nanoparticles capped with carboxy groups, are prepared. Their effectiveness in simultaneous targeting, dual-mode imaging, and photothermal ablation of breast cancer cells is demonstrated.
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Affiliation(s)
- Chungang Wang
- Birck Nanotechnology, Bindley Bioscience, and Purdue Cancer Center, Purdue University, 225 S. University Street, West Lafayette, IN 47906, USA
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Jang JT, Nah H, Lee JH, Moon SH, Kim MG, Cheon J. Critical enhancements of MRI contrast and hyperthermic effects by dopant-controlled magnetic nanoparticles. Angew Chem Int Ed Engl 2009; 48:1234-8. [PMID: 19137514 DOI: 10.1002/anie.200805149] [Citation(s) in RCA: 352] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Doped up: The incorporation of Zn(2+) dopants in tetrahedral sites leads to the successful magnetism tuning of spinel metal ferrite nanoparticles (see picture). (Zn(0.4)Mn(0.6))Fe(2)O(4) nanoparticles exhibit the highest magnetization value among the metal ferrite nanoparticles. Such high magnetism results in the largest MRI contrast effects (r2=860 mm(-1) s(-1)) reported to date and also huge hyperthermic effects.
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Affiliation(s)
- Jung-tak Jang
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
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42
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Wang C, Chen J, Talavage T, Irudayaraj J. Gold Nanorod/Fe3O4Nanoparticle “Nano-Pearl-Necklaces” for Simultaneous Targeting, Dual-Mode Imaging, and Photothermal Ablation of Cancer Cells. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805282] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Jang JT, Nah H, Lee JH, Moon S, Kim M, Cheon J. Critical Enhancements of MRI Contrast and Hyperthermic Effects by Dopant-Controlled Magnetic Nanoparticles. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805149] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Wang H, Wang S, Su H, Chen KJ, Armijo AL, Lin WY, Wang Y, Sun J, Kamei KI, Czernin J, Radu CG, Tseng HR. A supramolecular approach for preparation of size-controlled nanoparticles. Angew Chem Int Ed Engl 2009; 48:4344-8. [PMID: 19425037 PMCID: PMC2995451 DOI: 10.1002/anie.200900063] [Citation(s) in RCA: 159] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A supramolecular approach has been developed for the preparation of supramolecular nanoparticles (SNPs) with variable sizes (30-450 nm) from three different molecular building blocks using a cyclodextrin/adamantane recognition system. Positron emission tomography (PET) was employed to study the biodistribution and lymph node drainage of the SNPs in mice. The sizes of the SNPs affect their in vivo characteristics (see picture).
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Affiliation(s)
| | | | | | - Kuan-Ju Chen
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Amanda Lee Armijo
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Wei-Yu Lin
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Yanju Wang
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Jing Sun
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Ken-ichiro Kamei
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Johannes Czernin
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Caius G. Radu
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
| | - Hsian-Rong Tseng
- Crump Institute for Molecular Imaging (CIMI), Institute for Molecular Medicine (IMED), Department of Molecular and Medical Pharmacology, California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095 (USA), Fax: (+1) 310-206 -8975
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