Taw qhia

PEG-MGF2

musclepic 3

Khoom Description

1. Classification System: Main Hom PEG-MGF

Los ntawm qhov kev xav ntawm cov khoom siv raw thiab cov ntawv thov, PEG-MGF feem ntau tuaj yeem muab faib ua pawg hauv qab no:

Thawj qeb yog kev tshawb fawb -qib PEG-MGF. Hom no tsuas yog siv rau kev sim ntawm tes, kev tshawb fawb tsiaj txhu, thiab kev tshawb fawb txog kev loj hlob ntawm cov leeg nqaij, hais txog qhov tseeb ntawm cov qauv thiab cov qauv molecular, nrog rau cov kev xav tau siab rau cov tsos thiab kev ruaj ntseg.

Cov qeb thib ob yog siab -purity functional research-qib PEG-MGF. Hom khoom no ntxiv txhim kho purity thiab batch sib xws raws li kev tshawb fawb -qib, feem ntau ua tiav purity ntau dua 98%, ua rau nws tsim nyog rau ntev - kev sim lossis kev ua haujlwm zoo.

Pawg thib peb yog customized PEG-MGF raw cov ntaub ntawv. Raws li kev xav tau ntawm kev tshawb fawb sib txawv, qhov hnyav molecular ntawm PEG, qhov chaw sib txuas, thiab kev hloov pauv hloov tau raug kho kom tau raws li kev sim lossis kev loj hlob.

2. Core Zoo thiab Nta

PEG-MGF muaj ntau qhov zoo dua li MGF ib txwm muaj.

Ua ntej, nws txuas ntxiv ib nrab - lub neej. PEG kev hloov kho tsim ib qho kev thaiv qhov chaw, txo tus nqi ntawm peptide saw degradation los ntawm proteases, tso cai rau nws tswj nws cov haujlwm ntev dua hauv vivo lossis hauv vitro. Secondly, nws stability yog ho txhim kho. PEG-MGF nthuav tawm qhov ua tau zoo dua rau qhov kub thiab txias, pH hloov pauv, thiab lub teeb pom kev zoo dua li qhov tsis hloov kho MGF, ua kom pom kev ruaj ntseg zoo dua hauv cov tshuaj thiab lyophilized xeev.

Thib peb, nws bioavailability siab dua. PEG molecules txo qhov tsis yog- tshwj xeeb khi thiab ua kom yooj yim tshem tawm sai, ua kom yooj yim rau cov peptides ua haujlwm kom ua rau lawv cov teebmeem hauv cov ntaub so ntswg.

Thib plaub, nws muab cov khoom muaj zog - rau -batch controllability. Cov txheej txheem kev sib txuas thiab kev hloov kho niaj hnub no ua rau PEG-MGF ruaj khov dua nyob rau hauv cov nqe lus ntawm molecular phaus faib thiab kev qhia ua haujlwm, ua kom yooj yim rau loj- nplai ntau lawm thiab kev tswj kom zoo.

3. Kev piav qhia ntxaws txog Physicochemical Properties

PEG-MGF belongs rau chav kawm polypeptide ntawm cov tebchaw, nws cov qauv yooj yim uas muaj cov kab peptide luv luv thiab PEG saw. Tshwj xeeb physicochemical zog yog raws li nram no:

Hais txog qhov hnyav molecular, PEG-MGF feem ntau muaj qhov hnyav dua molecular dua li MGF zoo tib yam, nrog rau tus nqi tshwj xeeb nyob ntawm qhov hnyav molecular ntawm PEG (feem ntau 2kDa, 5kDa, lossis siab dua).

Nyob rau hauv cov nqe lus ntawm solubility, PEG-MGF muaj hydrophilicity zoo, yooj yim soluble nyob rau hauv sterile dej, physiological saline, los yog buffer daws, thiab tsis yooj yim tsim precipitates.

Hais txog pH stability, PEG-MGF nthuav tawm qhov kev ruaj ntseg zoo tshaj plaws nyob rau hauv nruab nrab rau qhov tsis muaj zog acidic ib puag ncig, ua rau nws tsim nyog rau cov kev sim niaj hnub.

Hais txog kev ruaj ntseg thermal, nws cov cua kub tsis kam yog qhov zoo dua li qhov tsis yog -PEGylated MGF, tab sis qis- qhov kub thiab txias yog tseem pom zoo kom ua kom muaj kev ua haujlwm ntev -.

4. Cov tsos thiab xim yam ntxwv

Siab - zoo PEG- MGF raw cov ntaub ntawv feem ntau muaj xws li lyophilized hmoov.

Cov xim yog dawb los yog tawm - cov hmoov dawb nrog cov xim zoo nkauj, zoo nkauj, tsis muaj qhov pom los yog pob. High- cov khoom lag luam zoo muaj qhov pom kev huv huv thiab yuav tsum tsis txhob pom pom tseeb daj, grey, lossis lwm yam tsis muaj xim, vim tias cov no feem ntau qhia oxidation los yog muaj cov impurities.

Tom qab dissolution, cov tshuaj yuav tsum tau meej los yog ze li ntawm pob tshab, tsis muaj teeb meem tshem tawm los yog turbidity, qhia zoo purity thiab solubility.

5. Cov txheej txheem ntau lawm thiab kev tswj xyuas zoo

Kev tsim cov PEG-MGF feem ntau suav nrog ntau cov kauj ruam tseem ceeb, suav nrog peptide khoom-theem synthesis, sequence splicing, PEG modification reaction, purification, and lyophilization.

Nyob rau hauv cov nqe lus ntawm kev tswj kom zoo, siab -kev ua tau zoo kua chromatography (HPLC) yog feem ntau yog siv rau purity nrhiav kom tau, huab hwm coj spectrometry (MS) rau kev pom zoo qhov hnyav molecular, thiab cov amino acid tsom xam rau ib theem zuj zus pov thawj. Siab- zoo PEG-MGF yuav tsum pom meej thiab ib lub hom phiaj siab tshaj plaws hauv cov kev sim no.

Meanwhile, residual solvent, noo noo cov ntsiab lus, thiab endotoxin theem kuj yog ib qho tseem ceeb qhia rau kev ntsuam xyuas raw khoom zoo.

6. Daim ntawv qhia kev tshawb fawb

PEG-MGF yog tam sim no tsuas yog siv rau hauv kev tshawb fawb ntawm cov leeg nqaij loj hlob thiab kho cov txheej txheem, cov ntaub so ntswg rov tsim dua tshiab-txog kev sim, kev tshawb fawb txog kev tawm dag zog lub cev, thiab kev tshawb fawb ntawm biomaterial functions.

Vim nws cov khoom ruaj khov dua, PEG-MGF feem ntau siv rau hauv kev tshawb fawb sib piv los ntsuas qhov cuam tshuam ntawm PEG hloov kho ntawm qhov ua tsis taus pa ntawm peptide muaj nuj nqi. Tsis tas li ntawd, nws muaj qhov tseem ceeb siv tus nqi hauv kev xa khoom thiab ntev - ua peptide tsim kev tshawb fawb.

7. Cov lus pom zoo khaws cia thiab thauj mus los

PEG-MGF raw cov ntaub ntawv yuav tsum tau khaws cia nyob rau hauv qis kub, qhuav, thiab lub teeb - tiv thaiv tej yam kev mob. Nyob rau hauv lub xeev undissolved, nws raug nquahu kom khaws cia ntawm -20℃lossis qis dua. Kev kub siab thiab rov ua dua yuav tsum tau zam thaum lub sijhawm thauj mus los kom tsis txhob muaj kev puas tsuaj rau cov qauv khov-qhuav.

Dissolved PEG-MGF yuav tsum tsis txhob muab khaws cia rau ncua sij hawm; nws yuav tsum tau aliquoted thiab khaws cia kom txo qis dua khov -thaw cycles.

8. Cov ntsiab lus

Raws li kev ua kom zoo tshaj plaws ntawm MGF, PEG-MGF, los ntawm PEG hloov kho tshuab, ua tiav cov teeb meem tseem ceeb ntawm MGF ib txwm muaj xws li kev ruaj ntseg tsis zoo thiab lub sij hawm luv luv, ua kom pom qhov zoo hauv kev tshawb fawb peptide thiab cov ntaub ntawv raw khoom. Nws zoo heev physicochemical zog, ruaj khov tsos, thiab ntau yam kev tshawb fawb daim ntaub ntawv ua rau nws yog ib tug tseem ceeb sawv cev ntawm peptide functionality tam sim no.

Nrog rau kev txhim kho txuas ntxiv ntawm peptide hloov kho thev naus laus zis thiab kev xa khoom, PEG-MGF tseem muaj cov kev tshawb fawb dav dav thiab daim ntawv thov muaj peev xwm, thiab nws cov nqi yuav txuas ntxiv mus rau qhov tob.