For many years it was a source of frustration for biologists that the internal components of a cell were practically invisible to them. Researchers believed that the wavelength of light determined a fundamental limit to the resolution of optical microscopes.rnHowever, it now seems that the wavelength of light was not such a limiting factor after all. Super-resolution technology allows researchers to see details that are difficult or impossible to image with conventional light microscopes - at resolutions of 100 nanometres or better.
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