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Nanotechnology: Detecting Lethal Diseases With Rust and Sand

(Science Daily) The next big thing in medical diagnostics could be minutes particles of rust, iron oxide, coated with the material from which sand is formed, silicon dioxide. These magnetic nanoparticles, a mere 29 to 230 nanometers across, can be used to trap antibodies to the virus that causes cervical cancer and to the bacteria that causes potentially lethal diarrhea…
Conventional techniques without the benefit of nanoparticles can be accurate, but the magnetic nanoparticles improve the limits of detection by allowing just these particles to be separated from the sample before carrying out the assay so that residual cells and other substances do not interfere with the test.
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Please do not give advice. We can best help each other by telling what works for us, not what we think someone else should do.