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hanamichi木蟲 (小有名氣)
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JACS精選文章: Glowing Long with Sub-10 nm Rechargeable Luminous Pearls 已有2人參與
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文題為：Direct Aqueous-Phase Synthesis of Sub-10 nm “Luminous Pearls” with Enhanced in Vivo Renewable Near-Infrared Persistent Luminescence 由UMass Medical School的Gang Han課題組發(fā)表。該文章被JACS Spotlights報道，并且被選為ACS Editors' Choice. 該文可以免費獲取閱讀權(quán)限： http://dx.doi.org/10.1021/jacs.5b00872 以下鏈接是JACS Spotlights對該文的報道： http://dx.doi.org/10.1021/jacs.5b04394  以下是文章摘要： Near-infrared (NIR) persistent luminescence nanoparticles (PLNPs), possessing unique NIR PL properties, have recently emerged as important materials for a wide variety of applications in chemistry and biology, for which they must endure high-temperature solid-state annealing reactions and subsequent complicated physical post-treatments. Herein, we report on a first direct aqueous-phase chemical synthesis route to NIR PLNPs and present their enhanced in vivo renewable NIR PL. Our method leads to monodisperse PLNPs as small as ca. 8 nm. Such sub-10 nm nanocrystals are readily dispersed and functionalized, and can form stable colloidal solutions in aqueous solution and cell culture medium for biological applications. Under biotissue-penetrable red-light excitation, we found that such nanocrystals possess superior renewable PL photoluminescence in vitro and in vivo compared to their larger counterparts currently made by existing methods. We believe that this solid-state-reaction-free chemical approach overcomes the current key roadblock in regard to PLNP development, and thus will pave the way to broad use of these advanced miniature “l(fā)uminous pearls” in photonics and biophotonics. |
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2樓2015-06-13 16:14:13
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3樓2015-06-13 17:48:34
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