Human Skin Flakes
Human skin flakes tend to be equant in planar view, as
opposed to the more assymetric pattern
seen in most other animal dander. They often exhibit weak stress birefringence in
some areas,
as seen here by the bight patches in the flakes, due to the plastic deformation that
occurs as
they detach from the body.
Transmitted Off Crossed Polarized Light Illumination
Definition/Function:
Significance in the Environment:
Characteristic Features:
Human dander varies from isotropic to particles with stress birefringence. The stress
birefringence of human skin flakes tends to be low. The
refractive index of human skin flakes tends to be around 1.550 but will vary with stress
and oil content.
Associated Particles:
References: