The specificity of polyclonal antibody of lactoferrin is determined by dot immuno-gold filtration assay(DIGFA).

TEM with immuno gold labels has been used to study 3D organization of proteins with high spatial resolution in fixed samples.

There is also, says Watterson, evidence of a link between shift work and non-Hodgkins lymphoma, possibly because the body's immune system lacks the positive effects of melatonin.