Persistent luminescence of AB2O4:Cr3+ (A = Zn, Mg, B = Ga, Al) spinels: New biomarkers for in vivo imaging

被引：89
作者：
Sharma, S. K. [1 ]
Gourier, D. [1 ]
Viana, B. [1 ]
Maldiney, T. [2 ,3 ,4 ]
Teston, E. [2 ,3 ,4 ]
Scherman, D. [2 ,3 ,4 ]
Richard, C. [2 ,3 ,4 ]
机构：
[1] CNRS Chim Paristech, IRCP, F-75005 Paris, France
[2] CNRS, Unite Technol Chim & Biol Sante, UMR 8258, F-75700 Paris, France
[3] Univ Paris 05, Sorbonne Paris Cite, Fac Sci Pharmaceut & Biol, INSERM,U 1022, F-75270 Paris, France
[4] Chim ParisTech, F-75231 Paris, France
来源：
OPTICAL MATERIALS | 2014年 / 36卷 / 11期
关键词：
Persistent luminescence; Long-lasting phosphorescence; Chromium doped AB(2)O(4) spinels; in vivo optical imaging; Storage phosphors; Photostimulable phosphors; PHOTO-STIMULATED LUMINESCENCE; OPTICAL-PROPERTIES; LONG-PERSISTENT; VISIBLE-LIGHT; TRAP DEPTH; N-LINES; NANOPARTICLES; PHOSPHORS; SPECTRA;
D O I：
10.1016/j.optmat.2014.06.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Recently red emitting long-lasting phosphorescence (LLP) materials have been demonstrated to be useful biomarkers for small animal in vivo imaging. We report here our investigations on the optical properties of chromium doped AB(2)O(4) spinels (with A = Zn, Mg and B = Ga, Al) suitable for such applications. It is possible to tune the absorption wavelengths of Cr3+ by a crystal field variation and also slightly vary the emission to be better centered in the biological window and to adjust the trap depth in order to better control the release of the charges. These traps are therefore stable at room temperature and could be emptied by thermal or near infrared source, which makes these materials potential new optically photo-storage compounds. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：1901 / 1906
页数：6
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