Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/101141
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Type: | Journal article |
Title: | Tunable lifetime multiplexing using luminescent nanocrystals |
Author: | Lu, Y. Zhao, J. Zhang, R. Liu, Y. Liu, D. Goldys, E. Yang, X. Xi, P. Sunna, A. Lu, J. Shi, Y. Leif, R. Huo, Y. Shen, J. Piper, J. Robinson, J. Jin, D. |
Citation: | Nature Photonics, 2014; 8(1):33-37 |
Publisher: | Nature Publishing Group |
Issue Date: | 2014 |
ISSN: | 1749-4885 1749-4893 |
Statement of Responsibility: | Yiqing Lu, Jiangbo Zhao, Run Zhang, Yujia Liu, Deming Liu, Ewa M. Goldys |
Abstract: | Optical multiplexing plays an important role in applications such as optical data storage(1), document security(2), molecular probes(3,4) and bead assays for personalized medicine(5). Conventional fluorescent colour coding is limited by spectral overlap and background interference, restricting the number of distinguishable identities. Here, we show that tunable luminescent lifetimes tau in the microsecond region can be exploited to code individual upconversion nanocrystals. In a single colour band, one can generate more than ten nanocrystal populations with distinct lifetimes ranging from 25.6 mu s to 662.4 mu s and decode their well-separated lifetime identities, which are independent of both colour and intensity. Such 'tau-dots' potentially suit multichannel bioimaging, high-throughput cytometry quantification, high-density data storage, as well as security codes to combat counterfeiting. This demonstration extends the optical multiplexing capability by adding the temporal dimension of luminescent signals, opening new opportunities in the life sciences, medicine and data security. |
Rights: | Copyright © 2013, Rights Managed by Nature Publishing Group |
DOI: | 10.1038/nphoton.2013.322 |
Grant ID: | http://purl.org/au-research/grants/arc/DP1095465 |
Published version: | http://dx.doi.org/10.1038/nphoton.2013.322 |
Appears in Collections: | Aurora harvest 3 IPAS publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_101141.pdf | Accepted version | 4.64 MB | Adobe PDF | View/Open |
hdl_101141version.pdf | 63.02 kB | Adobe PDF | View/Open |
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