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Home > Press > One small chip -- one giant leap forward for early cancer detection: An ultra-sensitive nano-chip capable of detecting cancer at early stages

This shows the lab-on-a-chip.

Credit: ICFO - The Institute of Photonic Sciences
This shows the lab-on-a-chip.

Credit: ICFO - The Institute of Photonic Sciences

Abstract:
Today, the majority of cancers are detected on the macroscopic level, when the tumor is already composed of millions of cancer cells and the disease is starting to advance into a more mature phase. But what if we could diagnose cancer before it took hold- while it was still only affecting a few localized cells? It would be like putting a fire out while it was still just a few sparks versus after having already caught on and spread to many areas of the house.

One small chip -- one giant leap forward for early cancer detection: An ultra-sensitive nano-chip capable of detecting cancer at early stages

Barcelona, Spain | Posted on May 19th, 2014

An international team of researchers, led by ICFO- Institute of Photonic Sciences in Castelldefels, announce the successful development of a "lab-on-a-chip" platform capable of detecting protein cancer markers in the blood using the very latest advances in plasmonics, nano-fabrication, microfluids and surface chemistry. The device is able to detect very low concentrations of protein cancer markers in blood, enabling diagnoses of the disease in its earliest stages. The detection of cancer in its very early stages is seen as key to the successful diagnosis and treatment of this disease.

This cancer-tracking nano-device shows great promise as a tool for future cancer treatments, not only because of its reliability, sensitivity and potential low cost, but also because of its easy carry-on portable properties, which is foreseen to facilitate effective diagnosis and suitable treatment procedures in remote places with difficult access to hospitals or medical clinics.

HOW DOES IT WORK: Although very compact (only a few square centimeters), the lab-on-a-chip hosts various sensing sites distributed across a network of fluidic micro-channels that enables it to conduct multiple analyses. Gold nano-particles lie on the surface of the chip and are chemically programed with an antibody receptor in such a way that they are capable of specifically attracting the protein markers circulating in blood. When a drop of blood is injected into the chip, it circulates through the micro-channels and if cancer markers are present in the blood, they will stick to the nano-particles located on the micro-channels as they pass by, setting off changes in what is known as the "plasmonic resonance". The device monitors these changes, the magnitude of which are directly related to the concentration/number of markers in the patient blood thus providing a direct assessment of the risk for the patient to develop a cancer.

ICREA Professor at ICFO Romain Quidant, coordinator of the project comments, "the most fascinating finding is that we are capable of detecting extremely low concentrations of this protein in a matter of minutes, making this device an ultra-high sensitivity, state-of-the-art, powerful instrument that will benefit early detection and treatment monitoring of cancer". In 2009, Prof. Quidant's research group at ICFO, in collaboration with several groups of oncologists, joined the worldwide effort devoted to the ultra-sensitive detection of protein markers located on the surface of cancer cells and in peripheral blood, which had been determined to be a clear indicator of the development of cancer. In 2010, they successfully obtained funding for the project called SPEDOC (Surface Plasmon Early Detection of Circulating Heat Shock Proteins and Tumor Cells) under the 7th Framework Program (FP7) of the European Commission. The effort was also boosted by generous philanthropic support from Cellex Foundation Barcelona. Today's announcement is an important outcome of this project.

###

About this study

This work has been supported by Cellex Foundation Barcelona and by the SPEDOC project, funded by the Seventh Framework Program (FP7) of the European Commission.

Reference: Srdjan S Acimovic , Maria Alejandra Ortega , Vanesa Sanz , Johann Berthelot , Jose Luis Garcia-Cordero , Jan Renger , Sebastian J. Maerkl , Mark Patrick Kreuzer , and Romain Quidant, LSPR Chip for Parallel, Rapid and Sensitive Detection of Cancer Markers in Serum, Nano Letters, DOI: 10.1021/nl500574n

####

About ICFO-The Institute of Photonic Sciences
ICFO-The Institute of Photonic Sciences was created in 2002 by the government of Catalonia and the Technical University of Catalonia as a center of research excellence devoted to the science and technologies of light with a triple mission: to conduct frontier research, train the next generation of scientists, and provide knowledge and technology transfer. Today, it is one of the top research centres worldwide in its category as measured by the Mapping Scientific Excellence ranking.

Research at ICFO targets the forefront of science and technology based on light with programs directed at applications in Health, Renewable Energies, Information Technologies, Security and Industrial processes, among others. The institute hosts 300 professionals based in a dedicated building situated in the Mediterranean Technology Park in the metropolitan area of Barcelona.

Researchers at ICFO publish in the most prestigious journals and collaborate with a wide range of companies around the world. The institute runs a vigorous technology transfer program in which more than 30 national and international industries participate. It has also created 5 spin-off companies to date. The institute is generously supported by Cellex Foundation Barcelona, which supports several frontier research projects and programs focused on young talented researchers.

For more information, please click here

Contacts:
Alina Hirschmann

34-935-542-246

Copyright © ICFO-The Institute of Photonic Sciences

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