5
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Gao R, Sun L, Li L, Pan T, Fu L, Ai XC, Zhang JP. A facile aqueous synthesis strategy for hexagonal phase NaGdF 4 nanorods. NEW J CHEM 2019. [DOI: 10.1039/c9nj01226e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A facile aqueous synthesis method is explored to synthesize hydrophilic β-NaGdF4 nanorods at 60 °C.
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Affiliation(s)
- Rongyao Gao
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Liyuan Sun
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Luoyuan Li
- School of Pharmaceutical Sciences
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Tingting Pan
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Limin Fu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Xi-Cheng Ai
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Jian-Ping Zhang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
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8
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Straßer M, Schrauth JHX, Dembski S, Haddad D, Ahrens B, Schweizer S, Christ B, Cubukova A, Metzger M, Walles H, Jakob PM, Sextl G. Calcium fluoride based multifunctional nanoparticles for multimodal imaging. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1484-1493. [PMID: 28900602 PMCID: PMC5530611 DOI: 10.3762/bjnano.8.148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
New multifunctional nanoparticles (NPs) that can be used as contrast agents (CA) in different imaging techniques, such as photoluminescence (PL) microscopy and magnetic resonance imaging (MRI), open new possibilities for medical imaging, e.g., in the fields of diagnostics or tissue characterization in regenerative medicine. The focus of this study is on the synthesis and characterization of CaF2:(Tb3+,Gd3+) NPs. Fabricated in a wet-chemical procedure, the spherical NPs with a diameter of 5-10 nm show a crystalline structure. Simultaneous doping of the NPs with different lanthanide ions, leading to paramagnetism and fluorescence, makes them suitable for MR and PL imaging. Owing to the Gd3+ ions on the surface, the NPs reduce the MR T1 relaxation time constant as a function of their concentration. Thus, the NPs can be used as a MRI CA with a mean relaxivity of about r = 0.471 mL·mg-1·s-1. Repeated MRI examinations of four different batches prove the reproducibility of the NP synthesis and determine the long-term stability of the CAs. No cytotoxicity of NP concentrations between 0.5 and 1 mg·mL-1 was observed after exposure to human dermal fibroblasts over 24 h. Overall this study shows, that the CaF2:(Tb3+,Gd3+) NPs are suitable for medical imaging.
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Affiliation(s)
- Marion Straßer
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany
- Department of Chemical Technology of Materials Synthesis, University of Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Joachim H X Schrauth
- MRB Research Center for Magnetic Resonance Bavaria, Am Hubland, 97074 Wuerzburg, Germany
- Department of Experimental Physics 5 (Biophysics), University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany
| | - Sofia Dembski
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany
- Translational Center Wuerzburg “Regenerative Therapies for Oncology and Musculosceletal Diseases”, Branch of Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 97070 Wuerzburg, Germany
- University Hospital Wuerzburg, Chair Tissue Engineering and Regenerative Medicine, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Daniel Haddad
- MRB Research Center for Magnetic Resonance Bavaria, Am Hubland, 97074 Wuerzburg, Germany
- Magnetic Resonance and X-ray Imaging Department of Fraunhofer Development Center X-ray Technology EZRT, a division of Fraunhofer Institute for Integrated Circuits IIS, Am Hubland, 97074 Wuerzburg, Germany
| | - Bernd Ahrens
- South Westphalia University of Applied Sciences, Luebecker Ring 2, 59494 Soest, Germany
- Fraunhofer Application Center for Inorganic Phosphors, Branch Lab of Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Luebecker Ring 2, 59494 Soest, Germany
| | - Stefan Schweizer
- South Westphalia University of Applied Sciences, Luebecker Ring 2, 59494 Soest, Germany
- Fraunhofer Application Center for Inorganic Phosphors, Branch Lab of Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Luebecker Ring 2, 59494 Soest, Germany
| | - Bastian Christ
- Translational Center Wuerzburg “Regenerative Therapies for Oncology and Musculosceletal Diseases”, Branch of Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 97070 Wuerzburg, Germany
| | - Alevtina Cubukova
- Translational Center Wuerzburg “Regenerative Therapies for Oncology and Musculosceletal Diseases”, Branch of Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 97070 Wuerzburg, Germany
| | - Marco Metzger
- Translational Center Wuerzburg “Regenerative Therapies for Oncology and Musculosceletal Diseases”, Branch of Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 97070 Wuerzburg, Germany
- University Hospital Wuerzburg, Chair Tissue Engineering and Regenerative Medicine, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Heike Walles
- Translational Center Wuerzburg “Regenerative Therapies for Oncology and Musculosceletal Diseases”, Branch of Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 97070 Wuerzburg, Germany
- University Hospital Wuerzburg, Chair Tissue Engineering and Regenerative Medicine, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Peter M Jakob
- MRB Research Center for Magnetic Resonance Bavaria, Am Hubland, 97074 Wuerzburg, Germany
- Department of Experimental Physics 5 (Biophysics), University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany
| | - Gerhard Sextl
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany
- Department of Chemical Technology of Materials Synthesis, University of Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany
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9
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Dai J, Yang C, Zhang H, Zhang H, Feng G, Zhou S. Morphology control and enhancement of 1.5 μm emission in Ca2+/Ce3+ codoped NaGdF4:Yb3+, Er3+ submicrorods. RSC Adv 2017. [DOI: 10.1039/c7ra08254a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Irregular NaGdF4:Yb/Er submicrocrystals converted into uniform submicrorods and the ∼1530 nm emission was enhanced via Ca2+/Ce3+ codoping.
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Affiliation(s)
- Jiangyun Dai
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Chao Yang
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Hong Zhang
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Hua Zhang
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Guoying Feng
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Shouhuan Zhou
- Institute of Laser and Micro/Nano Engineering
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu 610064
- China
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