Dithiothreitol (DTT), CAS: 3483-12-3, raws li kev tshawb fawb tshawb fawb reagent, feem ntau yog siv los ua tus neeg sawv cev txo qis rau sulfhydryl DNA, tus neeg saib xyuas kev tiv thaiv, thiab txo cov disulfide bonds hauv cov protein.Ib hom tshiab ntsuab additive plays lub luag haujlwm tseem ceeb hauv kev txhim kho roj teeb.
Dithiothreitol (DTT) yog ib tug muaj zog txo tus neeg sawv cev, thiab nws reducibility yog loj vim lub conformational stability ntawm rau-membered nplhaib (muaj disulfide bonds) nyob rau hauv nws oxidation xeev.Qhov txo qis ntawm cov nyiaj disulfide ib txwm los ntawm dithiothreitol muaj ob qhov sib law liag sulfhydryl-disulfide kev sib pauv hloov pauv.Kev txo hwj chim ntawm dithiothreitol (DTT) yog cuam tshuam los ntawm pH tus nqi, thiab nws tsuas tuaj yeem ua si qhov txo qis thaum tus nqi pH ntau dua 7. Qhov no yog vim tsuas yog cov deprotonated thiolate anions reactive, thaum mercaptans tsis ua, thiab cov pKa ntawm mercapto pawg feem ntau yog 8.3.
Dithiothreitol (DTT) feem ntau yog siv los txo cov disulfide bonds ntawm cov protein molecules thiab polypeptides.Nws feem ntau yog siv los ua cov protein sulfhydryl tiv thaiv tus neeg sawv cev thiab siv rau hauv kev npaj tshuaj tiv thaiv los tiv thaiv cov protein cysteine residues los ntawm kev tsim cov tshuaj intramolecular thiab intermolecular disulfides.tus yuam sij.Hauv cov txheej txheem ntawm kev tshawb nrhiav nucleic acid, dithiothreitol (DTT) tuaj yeem rhuav tshem cov disulfide bonds hauv RNase protein, denature RNase, thiab pab txhawb kev coj ua ntawm kev sim xws li RNA tsev qiv ntawv thiab RNA amplification.Dithiothreitol (DTT) kuj yog siv los ua tshuaj tua kab mob los tiv thaiv cov hlwb thiab cov ntaub so ntswg, ua cov xov tooj cua tiv thaiv, thiab lwm yam.
Txawm li cas los xij, dithiothreitol (DTT) feem ntau tsis tuaj yeem txo cov disulfide daim ntawv cog lus kos rau hauv cov qauv protein (cov khoom siv tsis tau).Kev txo qis ntawm cov nyiaj disulfide feem ntau yuav tsum tau denaturation ntawm cov protein ua ntej.
Txhawm rau tiv thaiv kev cuam tshuam ntawm cov roj teeb lithium-sulfur thiab txhim kho kev ua haujlwm ntawm electrochemical ntawm lithium-sulfur batteries, sim siv dithiothreitol (DTT) ua tus neeg sawv cev shearing rau shear high-order polysulfides los tiv thaiv lawv los ntawm kev tawg.Threitol (DTT) yog sib xyaw ua ke rau hauv ntau phab ntsa carbon nanotubes (MWCNTs) daim ntawv los npaj DTT interlayer.Lub DTT interlayer yog muab tso rau nruab nrab ntawm daim ntawv zoo electrode thiab qhov sib cais ntawm lithium-sulfur khawm ib nrab ntawm tes, thiab cov sulfur-carrying nto ntom ntom ntawm daim ntawv zoo electrode Txog 2mg / cm2.SEM kev soj ntsuam cov txiaj ntsig tau lees paub tias DTT tau sib cais ntawm qhov chaw thiab qhov khoob ntawm MWCNTs daim ntawv.Electrochemical xeem cov qhabnias qhia tau hais tias lub lithium-sulfur roj teeb nrog DTT sandwich qauv muaj ib tug thawj tso zis muaj peev xwm ntawm 1288 mAh / g ntawm tus nqi ntawm 0.05C.Thawj zaug, coulombic efficiency yog ze rau 100%, thiab lub peev xwm tshwj xeeb thaum lub sij hawm them nqi thiab tawm ntawm 0.5C, 2C, thiab 4C tus nqi nce mus txog 650mAh / g, 600mAh / g, thiab 410mAh / g, feem.Kev taw qhia ntawm DTT Sandwich qauv tuaj yeem ua tau zoo shear high-order polysulfide.Nws tiv thaiv nws los ntawm kev tsiv mus rau lithium tsis zoo electrode, yog li inhibiting lub shuttle nyhuv thiab txhim kho lub voj voog stability thiab coulomb efficiency ntawm lithium-sulfur roj teeb.
Nws yog tsim nyog sau cia tias dithiothreitol (DTT) yog cov tshuaj lom.Piv txwv li, nyob rau hauv lub xub ntiag ntawm kev hloov pauv hlau, dithiothreitol (DTT) tuaj yeem ua rau oxidative puas tsuaj rau cov roj ntsha molecules.Tib lub sijhawm, dithiothreitol (DTT) ) tuaj yeem txhim kho cov tshuaj lom ntawm qee cov tshuaj uas muaj arsenic thiab mercury.Dithiothreitol (DTT) muaj cov ntxhiab tsw ntxhiab, uas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv vim kev nqus pa thiab kev sib cuag ntawm daim tawv nqaij.Yog li ntawd, nws yog ib qho tsim nyog los tiv thaiv nws thaum lub sijhawm ua haujlwm, hnav lub qhov ncauj qhov ntswg, hnab looj tes thiab tsom iav, thiab ua haujlwm hauv lub fume hood.
Thithreitol (DTT) ua tus neeg sawv cev shearing hauv lithium-sulfur roj teeb
Lithium-sulfur roj teeb yog suav tias yog lub roj teeb uas muaj peev xwm loj vim nws lub zog loj thiab kev tiv thaiv ib puag ncig.Txawm li cas los xij, "shuttle effect" ntawm polysulfides ua rau lub neej tsis zoo thiab kev tawm ntawm tus kheej, uas txwv tsis pub nws daim ntawv thov.vim li cas.
Thiothreitol (DTT) tuaj yeem muab ntxiv rau lub roj teeb ua tus neeg sawv cev shearing.Nws tuaj yeem txiav cov disulfide daim ntawv cog lus sai sai ntawm chav tsev kub, shear high-order polysulfides los tiv thaiv lawv cov kev sib cais, inhibit lub shuttle nyhuv, thiab ua kom cov lithium electrochemical kev ua tau zoo ntawm sulfur roj teeb.
Dithiothreitol (DTT) ua cov khoom siv electrolyte hauv alkaline txhuas / cua roj teeb
Hauv alkaline txhuas / cua roj teeb, dithiothreitol tuaj yeem tsim cov txheej txheem tiv thaiv ib puag ncig thiab ruaj khov los ntawm cov ntawv cog lus dynamic covalent nyob rau saum npoo ntawm aluminium anode, inhibit tus kheej-corrosion ntawm aluminium anode, thiab txhim kho nws cov kev ua tau zoo.
Post lub sij hawm: Dec-31-2021