Los ntawm cov kua ntsev, me me kub nanoparticles thiab ntawv nrog cov tshuaj tiv thaiv, thiab cov tshuaj tiv thaiv biochemical tshwj xeeb - muab peb cov txiaj ntsig sai dua, kev lag luam yooj yim thiab yooj yim dua thiab cov txiaj ntsig tau raug (piv rau nucleic acid kuaj, kev ntseeg siab ntawm cov khoom kuaj tus kheej yog tsawg).
Lus Cim: Cov khoom siv tshuaj tiv thaiv kab mob tshiab sai sai rau tus kheej tau pib ua ntej hauv Tebchaws Europe thiab Tebchaws Meskas, thiab qee qhov ntawm nws cov khoom yog los ntawm Suav tuam ntxhab. Qhov no feem ntau yog vim muaj kev pom zoo nruj dua los ntawm Suav cov neeg tswj hwm rau kev thov hauv tsev ntawm COVID-19 cov khoom siv tshuaj tiv thaiv tus kheej.
Nasopharyngeal swab sau (kom tig rau 15 vib nas this), tso cov tshuaj rau hauv cov khoom siv, tos cov txiaj ntsig ... los ntawm cov tshuaj tiv thaiv biochemical tshwj xeeb, nrog rau cov kua qaub, me me kub nanoparticles, thiab kuaj strips nrog cov tshuaj tiv thaiv, muab rau peb ceev thiab txheeb xyuas tau qhov tseeb. Nws yog ib qho kev xav zoo heev.
Dr. Kate Biberdorf qhov kev sim tes pib pib!
Cov khoom siv tshuaj ntsuam xyuas tus kheej sai sai tuaj yeem ua los ntawm oropharyngeal swab lossis nasopharyngeal swab (kom tig rau 15 vib nas this).
"Poke lub swab hauv qab caj pas, nws qias neeg, ah, zoo, zoo, qhov ntawd yog txhua yam kuv ua tau."
Cov kws kho mob kis mob tau hais tias rau qee qhov tshwj xeeb sib txawv, xws li Omicron, peb yuav tsum tau nrhiav cov kab mob siab tshaj plaws, yog li lub caj pas swab yuav yog qhov kev xaiv zoo tshaj plaws rau kev kuaj tus kheej sai.
Ib qhov tseeb: Qee tus neeg swab lawv lub qhov ntswg thiab rov qab los tsis zoo. Tom qab ntawd lawv swab lawv caj pas thiab lawv rov qab zoo.
Thaum peb tau sau peb tus kheej cov qauv, peb tuaj yeem siv cov khoom siv ntsuas tus kheej sai sai rau cov yas yas tshiab los tsim cov tshuaj tiv thaiv.
Cov qauv sau tau ua ntej muab tso rau hauv cov tshuaj tsis haum (yuav luag tag nrho saum 99 feem pua ntawm cov kua qaub).
Cov chemistry koom nrog hauv qhov no suav nrog: phosphate buffer tov → conjugate acid thiab conjugate puag → sodium hydrogen phosphate thiab potassium dihydrogen phosphate (uas ntsuas pH ntawm cov tshuaj nyob ib ncig ntawm 7.4).
Acids, bases thiab buffer solutions tsim ib tug conjugate acid puag khub. Conjugate acids thiab conjugate bases yog ob lub molecules sib txawv uas yuav luag zoo ib yam tshwj tsis yog rau ib qho hydrogen atom.
Cov kev daws teeb meem tsis haum rau cov kev hloov pauv loj hauv pH, thiab yog tias muaj cov kua qaub tam sim no, cov pab pawg sib txuas yuav tua nws tawm thiab khaws cia ntawm pH 7.4 (pH 7.4 yog tib yam pH li peb cov ntshav, uas yuav pab ua rau tib neeg lub cev qhov xwm txheej) .
Tam sim no hais tias cov qauv ntsuas raug kaw, cia peb muab ob peb tee ntawm cov tshuaj rau hauv cov khoom siv. "Ib, ob, peb, plaub, ua tau zoo!"
Qhov chaw uas "S" sau rau ntawm cov khoom siv (cov qauv kuaj pom lub qhov) yog qhov chaw kub nanoparticles nyob.
"Muaj kub me ntsis hauv nws uas koj tsis tuaj yeem muag nws, cia ib leeg tig mus rau hauv lub caj dab kub, koj tsis tuaj yeem pom lawv."
Yog tias lub davhlau ya nyob twg cov protein ntawm tus kabmob tshiab muaj nyob rau hauv cov qauv, cov tshuaj tiv thaiv yuav tuav nws. Cov tshuaj tiv thaiv no yog cov tshuaj tiv thaiv tshwj xeeb hauv lub cev tiv thaiv kab mob (antigens kuj yog ib feem ntawm tus kab mob).
Nyob rau theem kev tshawb fawb, txhua yam khoom txawv teb chaws uas nkag mus rau hauv koj lub cev tuaj yeem yog ib qho antigen, suav nrog paj ntoos. Nws tsuas yog hais tias peb tham txog nws hauv cov ntsiab lus ntawm tus kab mob ntau lub sijhawm.
Hauv ob peb feeb tom ntej no, koj yuav pom cov xim ntawm cov ntawv xeem hloov pauv.
Tus tshiab crown detection reagent muaj ob tus sawv cev, ib qho yog "C" (zoo tswj kab), thiab lwm yam yog "T" (kuaj kab). Cov cheeb tsam "C" feem ntau qhia tau hais tias cov reagent puas zoo, thiab yog tias tsuas yog "C" hloov xim, qhov kev ntsuam xyuas tsis zoo. Yog tias ob qho "C" thiab "T" tsis muaj xim, nws txhais tau hais tias qhov kev sim rau tus kabmob tshiab no zoo.
Hauv cov ntsiab lus yooj yim, txhua yam peb yuav tsum tau ua yog xyuas kom cov kab "T" tsis hloov xim nyob rau hauv lub sij hawm faib.