T4 shine babban samfuri na ɓoyewar thyroid, kuma shi ma wani abu ne da ba za a iya yankewa ba na amincin tsarin tsarin hypothalamic-naterior-pituitary-thyroid. Yana ƙara yawan adadin kuzari na basal kuma yana taka muhimmiyar rawa wajen haɓaka duk ƙwayoyin jiki. Ana adana T4 a cikin follicles na thyroid a hade tare da thyroglobulin, kuma an ɓoye kuma an sake shi a ƙarƙashin tsarin TSH. Fiye da 99% na T4 a cikin jini yana wanzuwa ta hanyar ɗaure ga sauran sunadaran. Gwaji don jimlar T4 a cikin samfurin jini zai iya sanin ko thyroid yana aiki mara kyau.
Wannan samfurin yana amfani da fluorescence immunochromatography don gano ƙididdige abun ciki na cTT4 a cikin maganin kare/plasma. Ka'ida ta asali: T da C suna alama akan membrane na nitrocellulose, layin T yana mai rufi da cTT4 antigen a, kuma ana fesa kushin daurin tare da nanomaterial mai walƙiya mai suna antibody b wanda zai iya gane cTT4 musamman. CTT4 a cikin samfurin an fara yiwa lakabi da nanomaterial. Antibody b yana ɗaure don samar da hadaddun, sannan chromatographs zuwa sama. Hadadden yana gasa tare da antigen T-line a kuma ba za a iya kama shi ba; Akasin haka, lokacin da babu cTT4 a cikin samfurin, antibody b yana ɗaure zuwa antigen a. Lokacin da hasken tashin hankali ya haskaka, kayan nano suna fitar da siginar kyalli, kuma ƙarfin siginar yana da daidaituwa ga ƙaddamar da cTT4 a cikin samfurin.
Tun lokacin da aka kafa, mu masana'anta da aka ci gaba na farko a duniya ajin kayayyakin tare da adhering manufa
na inganci farko. Kayayyakinmu sun sami kyakkyawan suna a cikin masana'antar da kuma amana mai kima tsakanin sabbin abokan ciniki da tsoffin abokan ciniki.