2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob hauv Ziehl–Neelsen stain, heat ua lub cev mordant thaum phenol (carbol carbol Carbol fuchsin, carbol-fuchsin, lossis carbolfuchsin, yog Kev sib xyaw ntawm phenol thiab yooj yim fuchsin, siv rau hauv cov kab mob staining cov txheej txheem. … Yog tias cov kab mob acid-ceev cov kab mob yuav khaws cov xim liab ntawm cov xim vim lawv muaj peev xwm tiv taus cov kua qaub cawv (0.4 -1% HCl hauv 70% EtOH). https://en.wikipedia.org › wiki › Carbol_fuchsin
Carbol fuchsin - Wikipedia
ntawm carbol fuschin) ua raws li cov tshuaj mordant. Txij li thaum Kinyoun stain yog ib txoj kev txias (tsis muaj cua sov), qhov concentration ntawm carbol fuschin siv yog nce.
Dab tsi yog mordant hauv acid ceev staining?
Thaum lub sijhawm cov kua qaub nrawm nrawm, heatyog siv los ua cov tshuaj mordant kom tso cai rau cov stains nkag mus rau hauv cov quav ciab mycolic acid txheej. Cov cua sov yuav tiv thaiv cov hlwb los ntawm kev destained siv cov kua qaub-cawv. Vim tias cov hlwb no tuav ceev ceev mus rau thawj qhov stain nrog cov kua qaub cawv, lawv hu ua kua qaub ceev zoo.
Dab tsi yog mordant siv hauv Ziehl-neelsen txoj kev staining rau AFB?
Franz Ziehl tom qab ntawd hloov Ehrlich cov txheej txheem staining los ntawm kev siv carbolic acid ua mordant. Friedrich Neelsen khaws Ziehl txoj kev xaiv ntawm mordant tab sis hloov thawj qhov stain rau carbol fuchsin.
Lub hauv paus ntsiab lus ntawm cov kua qaub ceev yog dab tsiZiehl-neelsen txheej txheem?
PURPOSE: Siv rau hauv kev ua qauv qhia ntawm cov kab mob acid-ceev ceev uas yog cov genus 'mycobacterium', uas suav nrog cov kab mob ua rau tuberculosis. TSEEM CEEB: Lub lipoid capsule ntawm cov kab mob acid-ceev ceev yuav siv carbol- fuchsin thiab tiv taus decolorization nrog dilute acid yaug.
Lub hauv paus ntsiab lus ntawm acid-ceev bacilli yog dab tsi?
Cov phab ntsa ntawm cov kab mob mycobacterial muaj mycolic acids, uas yog fatty acids uas ua rau cov yam ntxwv ntawm "acid-fastness." Lub hauv paus ntsiab lus ntawm AFB smear yog raws li qhov tseeb tias mycolic acid nyob rau hauv lub cell phab ntsa ntawm AFB ua rau lawv tiv taus decolorization nrog acid cawv.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Nyob rau hauv daim siab detoxifying enzymes nyob rau hauv dab tsi organelle?
Cov enzymes uas tsim cov lipid Cheebtsam ntawm lipoproteins nyob rau hauv daim nyias nyias ntawm ER smooth ER Lub du endoplasmic reticulum tsis muaj ribosomesthiab ua haujlwm hauv lipid synthesis tab sis tsis metabolism, kev tsim cov tshuaj hormones steroid, thiab detoxification.
Puas yog lub hauv paus stain stain?
Puas yog lub hauv paus stains ntawm cov ntaub pua plag rov tshwm sim? Yog hais tias qhov kev tshem tawm cov stains tawm ib qho cim, cov ntaub pua plag feem ntau yuav qias neeg thiab xav tau kev tu tag nrho. Nyob rau hauv rooj plaub uas lub hauv paus stain rov tshwm sim tom qab kev kho mob, qee qhov stain-removing agent los yog stain residue tseem tuaj yeem tso rau hauv cov ntaub pua plag fibers.
Dab tsi reagent yog mordant nyob rau hauv gram stain?
Reagents xav tau rau Gram staining muaj xws li: Crystal violet (thaum stain) [1] Gram's iodine tov iodine kua Lugol cov tshuaj muaj 100 mg / mL ntawm poov tshuaj iodide thiab 50 mg / mL ntawm iodine. Muab qhov ncauj, cov khoom: Txo cov thyroid vascularity-li no nws siv los txo cov ntshav poob thaum lub sij hawm phais thyroid.
