Los ntawm Peptide Cov Ntaub Ntawv 
Lub Plaub Hlis 15, 2025
Tag nrho cov kab lus thiab cov ntaub ntawv ntawm cov khoom lag luam muab rau ntawm lub vev xaib no tsuas yog rau cov ntaub ntawv tshaj tawm kev tshaj tawm thiab cov hom phiaj kev kawm.
Cov khoom muab rau hauv lub vev xaib no yog npaj tshwj xeeb rau kev tshawb fawb hauv vitro. Kev tshawb fawb hauv vitro (Latin: * hauv iav *, lub ntsiab lus hauv iav) yog ua los ntawm tib neeg lub cev. Cov khoom no tsis yog tshuaj, tsis tau txais kev pom zoo los ntawm US Food and Drug Administration (FDA), thiab yuav tsum tsis txhob siv los tiv thaiv, kho, lossis kho txhua yam mob, kab mob, lossis mob. Nws raug txwv nruj raws li txoj cai los qhia cov khoom no rau hauv tib neeg lossis tsiaj lub cev hauv txhua daim ntawv.
Cov txheej txheem ntawm Peptide Cia
Peptide tebchaw, vim lawv qhov tshwj xeeb amino acid sequences thiab spatial cov qauv, muaj cov yam ntxwv uas lawv cov kev ua ub no lom neeg muaj feem cuam tshuam rau sab nraud ib puag ncig. Lub hauv paus ntsiab lus tseem ceeb rau kev khaws cia peptide yog los tiv thaiv cov tshuaj tiv thaiv xws li degradation, oxidation, thiab kev sib sau ua ke, yog li tswj hwm lawv cov qauv kev ntseeg siab thiab kev ua haujlwm lom neeg. Chemically, peptide bonds yog qhov yooj yim rau kev cuam tshuam hydrolytic, thaum pab pawg sab nrauv tuaj yeem cuam tshuam nrog ib puag ncig noo noo, oxygen, lossis kab mob, ua rau peptide inactivation. Cov txheej txheem khaws cia muaj xws li cov khoom siv hauv lub xeev thiab cov kua hauv lub xeev cia. Kev khaws cia hauv lub xeev feem ntau cuam tshuam nrog kev hloov pauv peptides rau hauv cov hmoov qhuav los ntawm cov txheej txheem xws li khov-qhuav lossis ziab kom qhuav kom txo tau qhov cuam tshuam ntawm ya raws; kua-state cia dissolves peptides hauv cov kuab tshuaj uas tsim nyog, haum rau cov xwm txheej uas yuav tsum tau npaj txhij-rau-siv yaj peptides.
Kev txiav txim siab tseem ceeb rau Peptide Cia
Kev Tiv Thaiv Oxidation yog qhov tseem ceeb hauv kev khaws cia peptide. Sulfur-muaj amino acids thiab aromatic amino acids nyob rau hauv peptide molecules yog nquag oxidation tshua nrog oxygen, ua rau peptide saw saw cleavage los yog tsim ntawm disulfide bonds tsis raug. Cov kev ntsuas tshwj xeeb suav nrog: qhia cov pa roj inert rau hauv cov thawv ntim khoom thaum lub sijhawm khaws cia hauv lub xeev kom tshem tawm cov huab cua thiab txo cov pa oxygen; Ntxiv cov tshuaj antioxidants tsim nyog rau cov kua peptide daws, zam kom tsis txhob raug huab cua ntev, thiab ntim cov ntim rau lub brim kom txo qis cov pa oxygen seem hauv lub taub hau.
Moisture Contamination Avoidance tseem ceeb heev rau kev khaws cia peptide. Cov dej noo tuaj yeem pib cov tshuaj tiv thaiv hydrolytic thiab pab txhawb kev loj hlob ntawm microbial. Rau kev khaws cia hauv lub xeev, cov hmoov qhuav peptide yuav tsum tau khaws cia rau hauv qhov chaw tsis muaj av noo (≤40% txheeb ze cov av noo) siv cov ntim dej noo-resistant nrog desiccants thiab kaw tam sim ntawd tom qab siv txhua yam los tiv thaiv kev ya raws. Hauv cov kua hauv lub xeev cia, cov kuab tshuaj yuav tsum tau ua kom lub cev qhuav dej, thiab cov ntim khoom yuav tsum qhuav thiab huv si thaum npaj cov tshuaj kom tsis txhob muaj impurity-instability.
Temperature Control yog lwm yam tseem ceeb. Peptides muaj qhov sib txawv ntawm qhov kub thiab txias; feem ntau tuaj yeem khaws cia ntawm -20 ° C lossis -80 ° C hauv lub xeev ruaj khov kom txo qis molecular zog thiab cov tshuaj tiv thaiv qeeb. Cov kua dej peptide tuaj yeem khaws cia rau lub sijhawm luv luv ntawm 4 ° C (tub yees) lossis lub sijhawm ntev ntawm -20 ° C lossis qis dua (khov), nrog kev zam nruj ntawm kev rov ua kom khov-thaw, uas tuaj yeem ua rau peptide aggregation lossis kev ua haujlwm poob. Cov kev daws teeb meem ua ntej aliquoting rau hauv me me tso cai rau kev siv raws li qhov xav tau thiab txo qis thawing zaus.
Kev xaiv ntawm Peptide Storage Containers
Kev xaiv lub thawv rau peptide cia yuav tsum xav txog cov khoom siv, kev sib khi, thiab kev siv tau. Cov khoom siv feem ntau suav nrog iav thiab yas. Cov thawv iav, nrog rau cov tshuaj zoo heev inertness, yog haum rau peptides rhiab rau cov khoom siv sib cuam tshuam, tab sis yuav tsum tau saib xyuas kom tsis txhob muaj kev puas tsuaj los ntawm thermal shock. Cov thawv yas muaj kev txav tau yooj yim thiab cuam tshuam, tab sis qee qhov peptides tuaj yeem ua rau cov khoom siv yas-tshwj xeeb ntawm qhov tsis tshua muaj siab-tseem ceeb siv cov ntim tshwj xeeb uas tsis tshua muaj adsorption yas hauv cov xwm txheej zoo li no. Airtight seals yog qhov tseem ceeb; Ntsia hlau-cap ntim thiab cryovials nrog roj hmab O-rings feem ntau yog siv los cais peptides ntawm huab cua, noo noo, thiab microbes. Cov thawv ntim tshwj xeeb yuav tsum ua raws li qhov ntim ntim thiab kev siv xav tau: lub qhov ncauj qhov ncauj kom nkag tau yooj yim hauv cov khoom hauv lub xeev cia, thiab cov raj centrifuge lossis cryovials kom yooj yim aliquoting thiab qis-kub cia hauv cov kua hauv xeev.
Cov lus qhia dav dav rau Peptide Storage
• Ua raws li cov qauv kev ua haujlwm tseem ceeb hauv qab no:
• Khaws cov khoom peptide hmoov rau hauv qhov kub thiab txias (≤-20 ° C), qhuav (humidity ≤40%), thiab qhov chaw tiv thaiv lub teeb.
• Rau cov kua peptide tov, siv lub tub yees luv luv los yog lub sij hawm ntev aliquoted khov.
• Tsis txhob rov khov-thaw mus ntxiv.
• Txo cov cua kom tsawg thaum tuav cov khoom peptide hmoov.
• Muab cov kua peptides nruj nreem nrog lub taub hau me me.
• Siv cov thawv opaque lossis aluminium foil wrapping rau peptides rhiab heev.
