The chances of surviving melanoma are getting better every year. But some cancers still become ‘resistant’ to treatment, and others don’t respond at all.
A collection of over 10,000 blood and 4,900 tissue samples from the biobank at the Melanoma Institute Australia is being used to hunt for clues to predict which patients won’t be responsive to treatment from day one. The researchers, from Macquarie University, are also looking for the basis of developed resistance by the cancer.
Physicist Dr Amanda Barnard has been using supercomputers to find the balance between sun protection and potential toxicity in a new generation of sunscreens which employ nanoparticles.
The metal oxide nanoparticles which block solar radiation are so small they cannot be seen, so the sunscreen appears transparent. But if the particles are too small, they can produce toxic levels of free radicals.
Amanda, who heads CSIRO’s Virtual Nanoscience Laboratory, has been able to come up with a trade-off—the optimum size of particle to provide maximum UV protection for minimal toxicity while maintaining transparency—by modelling the relevant interactions on a supercomputer. Continue reading Saving our skins→
There’s a new diagnostic tool being developed to target melanoma, the deadly form of skin cancer with which more than 10,000 Australians are diagnosed each year.
It’s a chemical compound designed to highlight small traces of these cancer cells in the body.
Melanoma occurs when the cells that make melanin, the dark pigment normally found in the skin, become cancerous. Melanoma cells often spread elsewhere in the body before the primary tumours are detected and removed surgically. Clusters of these melanoma cells can be hard to detect before they grow into tumours by which time they are often incurable. Continue reading Unmasking melanoma early→