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Paper Abstract and Keywords
Presentation 2022-01-28 11:30
Liquid phase synthesis of near-infrared phosphor Ca2GeO4: Mn5+ for in vivo bioimaging
Yudai Nitta, Hiroto Sanzen, Koutoku Ohmi (Tottori Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In our previous studies, Ca2GeO4:Mn5+ has been synthesized as a near-infrared (NIR) phosphor for bioimaging by the solid-phase reaction method. It was confirmed that the photoluminescence (PL) shows a NIR emission at around 1000 - 1300 nm, which corresponds to the wavelength region so called “biological window”. In order to apply it DDS (Drug Delivery System), in this study, we have investigated the effects of hydrothermal temperature and atmospheric annealing treatment after synthesis. As a result, NIR emitting Ca2GeO4: Mn5+ with a particle size of 400 nm has been obtained by combining the hydrothermal synthesis at 210 °C and atmospheric post annealing at 1300 °C.
Keyword (in Japanese) (See Japanese page) 
(in English) Mn5+ activated phosphor / Ca2GeO4:Mn5+ / NIR phosphor / Liquid phase synthesis / in-vivo fluorescence bioimaging / / /  
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Conference Information
Committee IDY IEICE-EID IEE-EDD SID-JC IEIJ-SSL  
Conference Date 2022-01-27 - 2022-01-28 
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Paper Information
Registration To IEICE-EID 
Conference Code 2022-01-IDY-EID-EDD-JC-SSL 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Liquid phase synthesis of near-infrared phosphor Ca2GeO4: Mn5+ for in vivo bioimaging 
Sub Title (in English)  
Keyword(1) Mn5+ activated phosphor  
Keyword(2) Ca2GeO4:Mn5+  
Keyword(3) NIR phosphor  
Keyword(4) Liquid phase synthesis  
Keyword(5) in-vivo fluorescence bioimaging  
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1st Author's Name Yudai Nitta  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Hiroto Sanzen  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Koutoku Ohmi  
3rd Author's Affiliation Tottori University (Tottori Univ.)
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Speaker Author-1 
Date Time 2022-01-28 11:30:00 
Presentation Time 15 minutes 
Registration for IEICE-EID 
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Volume (vol) vol.46 
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