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Chemists develop innovative nano-sensors for multiple proteins
Date:8/1/2013

provided with the necessary software by the Mainz-based team of chemists.

"We demonstrate a new approach for a multiplexed assay that detects multiple proteins simultaneously by letting a fluid flow past the randomly positioned gold nano-rods," explained Christina Rosman, first author of the study. The team from JGU's Institute of Physical Chemistry used four different target proteins to demonstrate the viability of the new concept, its ability to detect concentrations in the nanomolar range, and the possibility to recycle the sensors for more than one analysis. "We see the potential to extend our method to the simultaneous detection of hundreds or even thousands of different target substances," assert the authors in their article published in the June 2013 issue of the journal Nano Letters. Low-cost serial production of the sensors is feasible if advanced nano-fabrication methods such as nano-printing or optical trapping are used.

There are manifold possible applications of a test for multiple targets in a single procedure. The low-cost sensors could be directly used by physicians in their practices in order to detect and discriminate various types of flu viruses with which their patients could be infected. In addition, the technique would also be suitable for detecting the presence of toxins in the environment or in food, particularly in liquids such as milk or baby food, or the presence of doping or other illicit drugs.


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Contact: Dr. Carsten Sönnichsen
carsten.soennichsen@uni-mainz.de
49-613-139-24313
Johannes Gutenberg Universitaet Mainz
Source:Eurekalert

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