Monthly Archives: May 2020

Reducing genetic screening risks in IVF pregnancies

13 May 2020:

When a couple cannot conceive naturally, they often turn to in-vitro fertilisation. And that’s when the spectre of ‘aneuploidy’ arises — the risk that a fertilised embryo will have an abnormal number of chromosomes instead of the usual 46, triggering a range of congenital disorders, most of which result in miscarriage, stillbirth or death of the baby soon after birth. Continue reading

Breaking the blur barrier

7 May 2020:

Medical researchers face a hurdle when studying cells under an optical microscope — the laws of physics. Obtaining an image of anything below a certain size is complicated; optical apertures and the wavelength of visible light play havoc with clarity. Known as the diffraction limit, it was first encountered by German physicist Ernst Abbe in 1873, and limits the resolution to 200 nanometres (nm) at best (or 200 billionths of a metre). Continue reading