Press release by Nanosphere, Inc.:
Northwestern University researchers reported in today’s issue of Proceedings of the National Academy of Science the development of a bio-barcode assay which is 100,000 times to one million times more sensitive than other available tests in the detection of a protein in the brain linked to Alzheimer’s disease. While as many as four million Americans are believed to suffer from Alzheimer’s disease, it currently can be diagnosed definitively only after a patient’s death.
“Alzheimer’s disease, cancer and many other health conditions are often diagnosed too late for optimal treatment,” said Chad A. Mirkin, Ph.D., George B. Rathmann Professor of Chemistry at Northwestern University and leader of the bio-marker assay research. “We now can detect associated protein markers at much lower concentrations than conventional tests, potentially enabling earlier intervention and validation of new therapies for this debilitating disease.” The first marker studied, called an ADDL, was discovered by research collaborator Dr. William Klein, Department of Neurobiology and Physiology, at Northwestern University. Dr. Mirkin believes that multiple markers ultimately will be required for the definitive diagnosis of the disease. This new bio barcode technology offers the ability to simultaneously measure many markers at very low concentrations in a variety of media.
“The bio-barcode assay technology, licensed exclusive to Nanosphere, is poised to revolutionize the detection and treatment of a variety of life-threatening diseases,” said William Moffitt, Nanosphere’s President and CEO. “This is a breakthrough technology that now presents a challenge to the medical community and pharmaceutical industry to identify potential markers that can be evaluated for a variety of diseases such as cancer, neurodegenerative disease, infectious diseases and cardiac and pulmonary diseases. Nanosphere looks forward to advancing this breakthrough and expanding the availability of bio-barcode assays for researchers, hospital laboratories, physicians and patients in the near future.”
Nanosphere has an explanatory page about 13-nanometer gold nanoparticle probes that are at the heart of the testing process…