T4 bụ isi ngwaahịa nke thyroid secretion, na ọ bụkwa ihe na-adịghị mma akụkụ nke iguzosi ike n'ezi ihe nke hypothalamic-anterior pituitary-thyroid regulatory usoro. Ọ na-abawanye ọnụego metabolic basal ma na-arụ ọrụ dị mkpa na mmepe nke sel anụ ahụ niile. A na-echekwa T4 na follicle thyroid yana njikọ thyroglobulin, na nzuzo ma wepụta ya n'okpuru iwu nke TSH. Ihe karịrị 99% nke T4 na serum dị n'ụdị njikọ na protein ndị ọzọ. Nnwale maka ngụkọta T4 na nlele ọbara nwere ike ịma ma ọ bụrụ na thyroid na-arụ ọrụ nke ọma.
Ngwaahịa a na-eji fluorescence immunochromatography iji chọpụta ọnụọgụgụ ọdịnaya nke cTT4 na serum/plasma nkịta. Ụkpụrụ bụ isi: A na-akara T na C ahịrị na akpụkpọ ahụ nitrocellulose, a na-ekpuchi eriri T na cTT4 antigen a, a na-efesakwa pad na-ejikọta ya na fluorescent nanomaterial labeled antibody b nke nwere ike ịmata kpọmkwem cTT4. A na-ebu ụzọ kpọ cTT4 dị na nlele ahụ na nanomaterial. Ihe mgbochi b na-ejikọta iji mepụta mgbagwoju anya, wee chromatograph na-agbago elu. Mgbagwoju anya na-asọmpi na antigen T-line a enweghị ike ijide ya; N'ụzọ megidere nke ahụ, mgbe enweghị cTT4 na nlele ahụ, mgbochi b na-ejikọta na antigen a. Mgbe a na-eme ka ọkụ na-akpali akpali, ihe nano na-emepụta ihe mgbaàmà fluorescent, na ike nke mgbaàmà na-adabere na ntinye nke cTT4 na nlele.
Ebe ọ bụ na e guzobe ya, anyị factory e ịzụlite mbụ ụwa klas ngwaahịa na adhering ụkpụrụ
nke àgwà mbụ. Ngwaahịa anyị enwetala aha ọma na ụlọ ọrụ na ntụkwasị obi bara uru n'etiti ndị ahịa ọhụrụ na ndị ochie.