Washington: A unique odour signature from human skin cells can be used for identifying melanoma - the deadliest form of cancer, a new research has claimed.The researchers also showed that a nanotechnology-based sensor could reliably differentiate melanoma cells from normal skin cells.Melanoma is a tumour that affects melanocytes, skin cells that produce the dark pigment that gives skin its colour.The disease is responsible for approximately 75 percent of skin cancer deaths, with chances of survival directly related to how early the cancer is detected.The study took advantage of the fact that human skin produces numerous airborne chemical molecules known as volatile organic compounds (VOC) many of which are odourous.
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