Colloidal auro o se ituaiga o nanomaterial lautele faaaogaina i immunolabeling tekinolosi.Tekinolosi auro Colloidal o se tekinolosi faʻaigoaina masani, o se ituaiga fou o tekinolosi faʻailoga puipuia e faʻaaogaina ai auro colloidal e fai ma faʻailoga mo antigens ma antibodies, ma e iai ona tulaga faʻapitoa.I tausaga talu ai nei, ua faʻaaogaina lautele i suʻesuʻega faʻale-ola eseese.Toeitiiti lava o metotia uma o le immunoblotting o loʻo faʻaogaina i totonu o le falemaʻi e faʻaaogaina ona faʻailoga.I le taimi lava e tasi, e mafai ona faʻaaogaina i le tafe, microscopy electron, immunology, molecular biology ma e oʻo lava i biochip.

Colloidal auro e leaga molia i se siosiomaga alkali vaivai, ma e mafai ona fausia se sootaga mausali ma vaega lelei molia o porotini mole.Talu ai ona o lenei sootaga o le electrostatic bond, e le afaina ai mea olaola o le porotini.

O le mea moni, o le fa'ailogaina o auro colloidal o le fa'aogaina lea o polotini ma isi macromolecules e fa'apipi'i i luga o vaega auro colloidal.O lenei vaega spherical e iai se malosi malosi e faʻapipiʻi ai polotini ma e mafai ona fusifusia e aunoa ma le covalent i le staphylococcal A protein, immunoglobulin, toxin, glycoprotein, enzyme, antibiotic, hormone, ma bovine serum albumin polypeptide conjugates.

I le faaopoopo atu i le porotini fusifusia, colloidal auro e mafai foi ona fusifusia i le tele o isi macromolecules biological, e pei o le SPA, PHA, ConA, ma isi. E tusa ai ma nisi o meatotino faaletino o le colloidal auro, e pei o le maualuga electron density, particle size, foliga ma lanu tali, faʻatasi ai ma le puipuia ma meaola o le mea faʻapipiʻi, colloidal auro e faʻaaogaina lautele i immunology, histology, pathology ma cell biology ma isi fanua.