Labelling of silica microspheres with fluorescent lanthanide-doped LaF 3 nanocrystals

Yong Zhang; Meihua Lu

doi:10.1088/0957-4484/18/27/275603

Labelling of silica microspheres with fluorescent lanthanide-doped LaF ₃ nanocrystals

Yong Zhang
, Meihua Lu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

Abstract

Fluorescent microspheres have been demonstrated to be useful in a variety of biological applications. Fluorescent silica or polymer microspheres have been produced by incorporation of chromophores into the microspheres, which usually produces microspheres with nonuniform sizes and reduced fluorescence. Here we present a simple and straightforward method to produce silica microspheres with fluorescent lanthanide-doped LaF₃ nanocrystals grown on the surface. LaF₃ nanocrystals are in situ grown on silica microspheres of different sizes to form a raspberry-like structure. The microspheres exhibit strong fluorescence and the colour could be altered by changing the lanthanide ions doped in LaF₃ nanocrystals. © IOP Publishing Ltd.

Original language	English
Article number	275603
Journal	Nanotechnology
Volume	18
Issue number	27
DOIs	https://doi.org/10.1088/0957-4484/18/27/275603
Publication status	Published - 11 Jul 2007
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This project was supported by a NUS research grant.

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Cite this

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abstract = "Fluorescent microspheres have been demonstrated to be useful in a variety of biological applications. Fluorescent silica or polymer microspheres have been produced by incorporation of chromophores into the microspheres, which usually produces microspheres with nonuniform sizes and reduced fluorescence. Here we present a simple and straightforward method to produce silica microspheres with fluorescent lanthanide-doped LaF3 nanocrystals grown on the surface. LaF3 nanocrystals are in situ grown on silica microspheres of different sizes to form a raspberry-like structure. The microspheres exhibit strong fluorescence and the colour could be altered by changing the lanthanide ions doped in LaF3 nanocrystals. {\textcopyright} IOP Publishing Ltd.",

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AU - Lu, Meihua

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