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Fluorescent Nano-barcodes Could Revolutionize Diagnostics

Date:
May 24, 2008
Source:
University of Queensland
Summary:
A new technology with research and clinical application including the early detection of disease has just been invented. The new fluorescent "barcodes" called nanostrings, offers greater sensitivity and accuracy than current detection methods.

A new technology with research and clinical application including the early detection of disease has been invented and developed by University of Queensland researchers.

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Dr Krassen Dimitrov, from UQ's Australian Institute for Bioengineering & Nanotechnology, has developed fluorescent "barcodes" called nanostrings, offers greater sensitivity and accuracy than current detection methods.

Dr Dimitrov said nanostrings bind to RNA molecules for digital gene expression analysis. "Because this system can count the exact number of biomolecules present we can get an extremely accurate and sensitive picture of gene expression at a particular point in time," Dr Dimitrov said.

"This quantitative data is superior to other gene expression systems such as microarrays, which rely on the analogue measurement of fluorescence and therefore are less accurate and have a limited range.

"The nanostring is an important technological development in both clinical and research settings. We will be able to more accurately detect molecules associated with particular diseases and in the research arena, we will be able to identify new molecules associated with diseases and trace these back to the genes responsible."

He said the technology is based on a non-enzymatic process which reduces the chance of bias and is more robust in a variety of different conditions.

Dr Dimitrov is currently working on the next step, which will be new nano-barcodes that will further reduce the cost and improve sensitivity and usability.

This technology has been commercialised in Seattle by a company founded by Dr Dimitrov in 2003.

The research has been published in the journal Nature Biotechnology.


Story Source:

The above story is based on materials provided by University of Queensland. Note: Materials may be edited for content and length.


Cite This Page:

University of Queensland. "Fluorescent Nano-barcodes Could Revolutionize Diagnostics." ScienceDaily. ScienceDaily, 24 May 2008. <www.sciencedaily.com/releases/2008/05/080522094655.htm>.
University of Queensland. (2008, May 24). Fluorescent Nano-barcodes Could Revolutionize Diagnostics. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2008/05/080522094655.htm
University of Queensland. "Fluorescent Nano-barcodes Could Revolutionize Diagnostics." ScienceDaily. www.sciencedaily.com/releases/2008/05/080522094655.htm (accessed March 3, 2015).

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