SINGAPORE - A team of researchers from the National University of Singapore has developed a technology that promises to make biopsies more informative and less invasive for cancer patients.
Here is how Stamp works. A long chain of DNA is first folded into a pyramid-like structure to give it stability. This is then exposed to a small sample of cells extracted from a patient. The DNA attaches to the proteins in the cells and, when it does this, the DNA barcode changes. Conventionally, early diagnostic biopsies require a fine needle to be inserted into a suspicious growth to extract samples. These are then sent for tests, to determine if the growth is cancerous.
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