Using common laboratory filter paper coated with antibody-labeled gold nanorods, a team of investigators at Washington University in St. Louis has developed a rapid and inexpensive method for detecting biomarkers of kidney cancer in urine. Srikanth Singamaneni and his collaborators published their findings in the journal Analytical Chemistry ("Bioplasmonic Paper as a Platform for Detection of Kidney Cancer Biomarkers").
Kidney cancer, which accounts for three percent of all adult cancers, is a silent killer. It presents with few symptoms until it has spread throughout the body, at which point the disease is largely fatal. In the few instances where a kidney tumor is discovered at an early stage, usually during an abdominal scan for other reasons, surgical removal of the tumor is nearly 100 percent effective at curing this disease.
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