2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Hydrolysis ntawm β-lactam nplhaib hauv penicillin ua rau nws tsis ua haujlwm. Hmoov tsis zoo, vim yog lub siab reactivity ntawm β-lactam nplhaib, ib penicillin tuaj yeem hnov mob nrog dej hauv cov kua qaub(raws li pom hauv plab), ua rau lub nplhaib β-lactam, hauv Cov tshuaj tiv thaiv hydrolysis.
Vim li cas beta-lactam ring strain?
Vim lub nplhaib lim, β-lactams yog yooj yim hydrolyzed dua linear amides lossis loj dua lactams. … Raws li ib tug pyramidal daim ntawv cog lus geometry raug yuam raws li nitrogen atom los ntawm lub nplhaib strain, lub resonance ntawm amide daim ntawv cog lus yog txo, thiab cov carbonyl ua ntau ketone-zoo li.
Puas yog lub nplhaib beta-lactam ruaj khov?
Nws tau pom tias yog ruaj khov ntawm kwv yees li pH 5 hauv cov kua dej aqueous (ntawm 35 ° C) [35], thiab kom ruaj khov dua li lwm cov β-lactams nyob rau hauv nruab nrab los yog acidic tej yam kev mob. Qhov kev ruaj ntseg nce ntxiv yog tshwm sim los ntawm kev txo qis ntawm lub nplhaib β-lactam vim nws tsis txuas rau lub nplhaib thib ob (Daim duab 1B) [35].
Lub nplhaib beta-lactam ua haujlwm li cas hauv penicillin?
Penicillin thiab feem ntau lwm yam tshuaj tua kab mob β-lactam ua by inhibiting penicillin-binding proteins, uas ib txwm ua rau kev sib txuas ntawm cov kab mob ntawm phab ntsa. Thaum tsis muaj β-lactam tshuaj tua kab mob (sab laug), phab ntsa ntawm tes ua lub luag haujlwm tseem ceeb hauv kev tsim cov kab mob.
Dab tsi ua rau lub nplhaib beta-lactam?
Beta-lactamases yog ib tsev neeg ntawm cov enzymes koom nrog cov kab mob ua rau cov tshuaj tua kab mob beta-lactam. Lawv ua los ntawm kev tawg lub nplhaib beta-lactam uas tso cai rau cov tshuaj tua kab mob zoo li penicillin ua haujlwm.
Pom zoo:
Puas muaj qhov chaw ruaj khov puas txhais tau tias tsis muaj zog nyob ruaj khov?
Thawj zaug nco ntsoov tias lub sijhawm kawg thib ob tsis suav tias yog lub ntsiab lus ntawm qhov muaj zog nyob ruaj khov, yog li, muaj zog ruaj khov tsis tas txhais tau tias tsis muaj zog nyob ruaj khov. Puas muaj zog nyob ruaj khov txhais tau tias tsis muaj zog nyob ruaj khov?
Thaum pedaling ntawm lub tsheb kauj vab nyob ruaj ruaj lub hauv caug yuav tsum yog?
Nrog koj lub pob taws nyob rau pem hauv ntej ntawm tus pedal, thawb tag nrho txoj kev mus rau ntawm ib sab, yog li koj txhais ko taw so ntawm 6 teev. Karp hais tias, " Koj lub hauv caug yuav tsum ncaj ncaj," Karp hais tias, "Yog li ntawd thaum koj xaub koj txhais taw mus rau hauv lub tawb lossis clip rau hauv cov pedals, koj yuav muaj qhov zoo ntawm khoov ntawm koj.
Hauv penicillin beta lactam nplhaib yog fused nrog?
β-Lactams tseem yog ib qho ntawm cov tshuaj feem ntau koom nrog hauv cov tshuaj tsis haum tshuaj. Plaub pawg tseem ceeb sib koom ua ke plaub-tus tswv cuab β-lactam nplhaib; thiab yog tias lub nplhaib no tau sib xyaw ua ke rau a thiazolidine nplhaib, β-lactam raug cais ua penicillin.
Vim li cas lub sijhawm tsis ruaj khov tsis zoo?
Qhov thib peb suav tias yog qhov tsis zoo tag nrho vim nws tuaj yeem ua chord loj lossis me, muab qhov sib txawv, zoo siab lossis tu siab. Thaum peb hnov Dunstable lub suab paj nruag niaj hnub no, nws suab zoo dua li kev hu nkauj thaum ub vim peb pob ntseg tau ua rau cov chords loj thiab me.
Vim li cas lub nplhaib nplhaib offline?
sim tshem tawm thiab rov txuas koj tus Choj. Nws yuav tsum reconnect nws. Tshawb xyuas koj cov firmware xwm txheej ntawm lub nplhaib app thiab xyuas kom koj tus Choj tau hloov tshiab. Rov pib lub router thiab khiav los ntawm cov txheej txheem teeb tsa dua, Nco ntsoov tias koj sau koj tus password kom raug.
