Biconcave disc
A biconcave disc — also referred to as a discocyte — is a geometric shape resembling an oblate spheroid with two concavities on the top and on the bottom.
Biconcave discs appear in the study of cell biology, where it is meta-stable, and involves the continuous adjustment of the asymmetric transbilayer lipid distribution, which is correlated with ATP depletion.Mathematical model
A biconcave disc can be described mathematically by
where is the height of the surface as a function of radius, is the diameter of the disc, and are coefficients describing the shape. The above model describes a smooth surface; actual cells can be much more irregular.Biology
are in the shape of a biconcave disc.
