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Chakraborty S, Vimalnath KV, Sharma J, Shetty P, Sarma HD, Chakravarty R, Prakash D, Sinha PK, Dash A. Barium titanate microparticles as potential carrier platform for lanthanide radionuclides for their use in the treatment of arthritis. J Labelled Comp Radiopharm 2018; 61:522-532. [PMID: 29431234 DOI: 10.1002/jlcr.3615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/31/2018] [Accepted: 01/31/2018] [Indexed: 11/06/2022]
Abstract
Since the inception of radiation synovectomy, a host of radioactive colloids and microparticles incorporating suitable therapeutic radionuclides have been proposed for the treatment of arthritis. The present article reports the synthesis and evaluation of barium titanate microparticles as an innovative and effective carrier platform for lanthanide radionuclides in the preparation of therapeutic agents for treatment of arthritis. The material was synthesized by mechanochemical route and characterized by X-ray diffraction, scanning electron microscopy, surface area, and particle size distribution analyses. Loading of lanthanide radionuclides (166 Ho, 153 Sm, 177 Lu, and 169 Er) on the microparticles was achieved in high yield (> 95%) resulting in the formulation of loaded particulates with excellent radiochemical purities (> 99%). Radiolanthanide-loaded microparticles exhibited excellent in vitro stability in human serum. In vitro diethylene triamine pentaacetic acid challenge study indicated fairly strong chemical association of lanthanides with barium titanate microparticles. Long-term biodistribution studies carried out after administration of 177 Lu-loaded microparticles into one of the knee joints of normal Wistar rats revealed near-complete retention of the formulation (> 96% of the administered radioactivity) within the joint cavity even 14 days post-administration. The excellent localization of the loaded microparticles was further confirmed by sequential whole-body radio-luminescence imaging studies carried out using 166 Ho-loaded microparticles.
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Affiliation(s)
| | - K V Vimalnath
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Jyothi Sharma
- Powder Metallurgy Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Priyalata Shetty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - H D Sarma
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Rubel Chakravarty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Deep Prakash
- Powder Metallurgy Division, Bhabha Atomic Research Centre, Mumbai, India
| | - P K Sinha
- Powder Metallurgy Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
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Yao Z, Song Z, Hao H, Yu Z, Cao M, Zhang S, Lanagan MT, Liu H. Homogeneous/Inhomogeneous-Structured Dielectrics and their Energy-Storage Performances. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1601727. [PMID: 28229531 DOI: 10.1002/adma.201601727] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 11/14/2016] [Indexed: 05/27/2023]
Abstract
The demand for dielectric capacitors with higher energy-storage capability is increasing for power electronic devices due to the rapid development of electronic industry. Existing dielectrics for high-energy-storage capacitors and potential new capacitor technologies are reviewed toward realizing these goals. Various dielectric materials with desirable permittivity and dielectric breakdown strength potentially meeting the device requirements are discussed. However, some significant limitations for current dielectrics can be ascribed to their low permittivity, low breakdown strength, and high hysteresis loss, which will decrease their energy density and efficiency. Thus, the implementation of dielectric materials for high-energy-density applications requires the comprehensive understanding of both the materials design and processing. The optimization of high-energy-storage dielectrics will have far-reaching impacts on the sustainable energy and will be an important research topic in the near future.
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Affiliation(s)
- Zhonghua Yao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Zhe Song
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Hua Hao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Zhiyong Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Minghe Cao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Shujun Zhang
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, North Wollongong, NSW, 2500, Australia
| | - Michael T Lanagan
- Center for Dielectric Studies, Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802-4800, USA
| | - Hanxing Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and International School of Materials Science and Engineering (ISMSE), Wuhan University of Technology, Wuhan, 430070, P. R. China
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