| 申请日期 | 2024-11-19 | 申请号 | US10494126 |
| 公开（公告）号 | US20050008858A1 | 公开（公告）日 | 2005-01-13 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | WAKEFIELD GARETH; GREEN MARK | ||
| 简介 | A particle of a compound of the formula : Xa(YOb)c wherein X is a rare earth metal or a metal of Group IIA, IIB, IVB or VB of the Periodic Table, or a mixture of two or more thereof, Y is a metal which forms an anion with oxygen, or a mixture of two or more thereof, and a, b and c are such that the compound is stoichiometric, the particle having a size less than 100 nm is disclosed. It can be used in, for example, security marking and biotagging. | ||
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