Cov txheej txheem:
- Nyob rau hauv cov tshuaj tiv thaiv haiv neeg twg yog tsim los ntawm halogenation?
- Puas yog haiv neeg SN1 lossis SN2?
- Yuav ua li cas yog kev ntxub ntxaug muab piv txwv?
- Dab tsi yog kev sib tw sib tw ntawm cov khoom?
Video: Yuav ua li cas cov tshuaj tiv thaiv kab mob sib xyaw ua ke tau txais los ua cov khoom lag luam loj?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Racemic sib tov yog feem ntau tsim thaum cov tshuaj achiral hloov mus ua chiral ones Qhov no yog vim qhov tseeb tias chirality tsuas yog paub qhov txawv hauv ib puag ncig chiral. Cov tshuaj achiral nyob rau hauv ib puag ncig achiral tsis nyiam los tsim ib qho enantiomer dua lwm tus.
Nyob rau hauv cov tshuaj tiv thaiv haiv neeg twg yog tsim los ntawm halogenation?
Yog free radical halogenation tsim kom muaj chiral carbon, racemic sib xyaw ntawm halides ib txwm tsim vim muaj qhov sib npaug ntawm halogenation los ntawm ob sab ntawm planar dawb radical.
Puas yog haiv neeg SN1 lossis SN2?
Vim tias cov carbocation xav tias lub hom phiaj, kev tawm tsam los ntawm nucleophile tuaj yeem tshwm sim los ntawm ob sab ntawm lub dav hlau. Qhov no ua rau muaj kev sib xyaw ntawm enantiomers, hu ua racemic sib tov. Qhov no yog qhov sib piv rau SN2uas tsuas yog tsim cov stereoisomer inverted ntawm cov reactant.
Yuav ua li cas yog kev ntxub ntxaug muab piv txwv?
Qee cov tshuaj molecules yog chiral, thiab cov enantiomers muaj qhov sib txawv ntawm cov khoom lom. Lawv tuaj yeem raug muag raws li ib qho enantiomer lossis raws li kev sib xyaw racemic. Piv txwv suav nrog thalidomide, ibuprofen, cetirizine thiab salbutamolAdderall yog qhov sib npaug ntawm ob qho tib si amphetamine enantiomers.
Dab tsi yog kev sib tw sib tw ntawm cov khoom?
Racemic sib tov, tseem hu ua racemate, kev sib xyaw ntawm qhov sib npaug ntawm ob enantiomers, lossis cov khoom uas muaj cov qauv molecular dissymmetric uas yog daim iav duab ntawm ib leeg.
Pom zoo:
Puas yog cov tshuaj tiv thaiv kab mob sib txuas tau suav tias yog kev tiv thaiv kab mob?
Antibody drug conjugates (ADCs) yog ib hom tshuaj tiv thaiv kab mob. Lawv yog tsim los ntawm peb yam: monoclonal antibody (mAb) thiab cytotoxic payload ua los ntawm cov kws khomob kws khomob, uas txuas nrog ua ke siv cov tshuaj sib txuas . Puas yog tshuaj tiv thaiv kab mob tib yam li kev tiv thaiv kab mob?
Puas yog cov tshuaj tiv thaiv kab mob tiv thaiv kab mob ua rau lupus?
Antinuclear cov tshuaj tiv thaiv yog autoantibodies - cov tshuaj tiv thaiv kab mob uas tsom rau cov proteins ib txwm nyob hauv lub hauv paus ntawm lub cell. Qhov no dhau los ua qhov tseem ceeb hauv kev kho mob thaum ANAs teeb liab lub cevpib tsom nws tus kheej, uas tuaj yeem ua rau cov kab mob autoimmune, suav nrog lupus, Sjogren's syndrome, thiab cov kab mob sib xyaw ua ke .
Cov neeg mob tiv thaiv kab mob yuav tsum tau txais cov tshuaj tiv thaiv?
Vim li cas CDC thiaj pom zoo tias cov neeg uas muaj kev tiv thaiv kab mob tiv thaiv kab mob tau txais koob tshuaj mRNA COVID-19 ntxiv los ntxiv rau 2-dose thawj koob tshuaj tiv thaiv kab mob mRNA COVID-19? Cov neeg uas muaj kev tiv thaiv kab mob los yog cov neeg siv tshuaj tiv thaiv kab mob yog nyob ntawm muaj kev pheej hmoo ntau rau tus kab mob COVID-19 hnyav .
Ntawm kev kuaj tshuaj tiv thaiv kab mob tiv thaiv kab mob?
Kev kuaj mob hnyav yog siv los txiav txim seb cov tshuaj tua kab mob twg yuav cuam tshuam kev loj hlob ntawm cov kab mob lossis cov kab mob ua rau muaj kab mob tshwj xeebCov txiaj ntsig ntawm qhov kev sim no yuav pab tus kws kho mob txiav txim siab seb cov tshuaj twg yog yuav ua tau zoo tshaj plaws hauv kev kho tus neeg mob .
Cov tshuaj tiv thaiv kab mob puas muaj kev tiv thaiv kab mob?
Nws yuav siv sijhawm ntev npaum li cas txhawm rau txhim kho kev tiv thaiv kab mob COVID-19 tom qab tau txais cov tshuaj tiv thaiv? tshuaj tiv thaiv COVID-19 qhia peb lub cev tiv thaiv kab mob kom paub txog thiab tawm tsam tus kab mob uas ua rau COVID-19.
