Dithiothreitol (DTT), CAS: 3483-12-3, e le setsi sa lipatlisiso sa saense se sebelisoang ka ho fetisisa, hangata se sebelisoa e le moemeli oa ho fokotsa DNA ea sulfhydryl, e thibelang likokoana-hloko, le ho fokotsa litlamo tsa disulfide liprotheine.Mofuta o mocha oa tlatsetso e tala o phetha karolo ea bohlokoa ho ntlafatsa ts'ebetso ea betri.
Dithiothreitol (DTT) ke sesebelisoa se matla sa ho fokotsa, 'me ho fokotseha ha eona ho bakoa haholo ke ho tsitsa ha conformational ea lesale la litho tse tšeletseng (e nang le li-bond disulfide) sebakeng sa eona sa oxidation.Phokotso ea bond e tloaelehileng ea disulfide ka dithiothreitol e na le likarabelo tse peli tse latellanang tsa phapanyetsano ea bond ea sulfhydryl-disulfide.Matla a fokotsang a dithiothreitol (DTT) a angoa ke boleng ba pH, 'me a ka bapala feela phello ea ho fokotsa ha pH ea bohlokoa e le kholo ho feta 7. Sena ke hobane feela li-anion tsa deprotonated thiolate li sebetsa, ha li-mercaptans li sa etse joalo, le pKa ea lihlopha tsa mercapto hangata ke 8.3.
Dithiothreitol (DTT) hangata e sebelisoa ho fokotsa litlamo tsa disulfide tsa limolek'hule tsa protheine le polypeptides.Hangata e sebelisoa e le protheine ea sulfhydryl e sireletsang 'me e sebelisoa litokisetsong tsa ente ho thibela masala a protheine ea cysteine ho theha intramolecular le intermolecular disulfides.senotlolo.Ts'ebetsong ea ho lemoha ha nucleic acid, dithiothreitol (DTT) e ka senya maqhama a disulfide protheine ea RNase, ea senya RNase, 'me ea thusa ho etsa liteko tse kang mohaho oa libuka oa RNA le ho hōlisa RNA.Dithiothreitol (DTT) e boetse e sebelisoa e le antidote ho sireletsa lisele le lisele, joalo ka radioprotectant, joalo-joalo.
Leha ho le joalo, dithiothreitol (DTT) hangata ha e khone ho fokotsa litlamo tsa disulfide tse kentsoeng mohahong oa protheine (solvent e ke keng ea khoneha).Ho fokotseha ha litlamo tse joalo tsa disulfide hangata ho hloka hore protheine e hlahisoe pele.
E le ho thibela phello ea shuttle ea libeteri tsa lithium-sulfur le ho ntlafatsa ts'ebetso ea electrochemical ea libeteri tsa lithium-sulfur, leka ho sebelisa dithiothreitol (DTT) e le moemeli oa ho kuta ho kuta li-polysulfide tse phahameng ho li thibela ho qhibiliha.Threitol (DTT) e kopantsoe le pampiri ea carbon nanotubes (MWCNTs) e nang le marako a mangata ho lokisa interlayer ea DTT.The DTT interlayer e behiloe pakeng tsa lakane eleketrode positive, le karohano ea lithium-sebabole konopo halofo ea sele, 'me sebabole-jara segokanyipalo holim'a lakane eleketrode positive, Hoo e ka bang 2mg/cm2.Liphetho tsa tlhahlobo ea SEM li tiisa hore DTT e hasane ka mokhoa o ts'oanang holim'a pampiri ea MWCNTs.Liphetho tsa tlhahlobo ea electrochemical li bonts'a hore betri ea lithium-sulfur e nang le sebopeho sa sandwich ea DTT e na le matla a pele a ho ntša a 1288 mAh / g ka sekhahla sa 0.05C.Ka lekhetlo la pele, katleho ea coulombic e haufi le 100%, 'me matla a khethehileng nakong ea tefiso le ho tsoa ho 0.5C, 2C, le litekanyetso tsa 4C li fihla ho 650mAh / g, 600mAh / g, le 410mAh / g, ka ho latellana.Kenyelletso ea sebopeho sa sandwich ea DTT e ka kuta li-polysulfide tsa boleng bo holimo.E thibela ho falla ho lithium negative electrode, kahoo e thibela phello ea shuttle le ho ntlafatsa botsitso ba potoloho le katleho ea coulomb ea libeteri tsa lithium-sulfur.
Ke habohlokoa ho hlokomela hore dithiothreitol (DTT) ke ntho e chefo.Ka mohlala, boteng ba litšepe tsa phetoho, dithiothreitol (DTT) e ka baka tšenyo ea oxidative ho limolek'hule tsa likokoana-hloko.Ka nako e ts'oanang, dithiothreitol (DTT) ) E ka boela ea ntlafatsa chefo ea metsoako e meng e nang le arsenic le mercury.Dithiothreitol (DTT) e na le monko o hlabang, o ka bang kotsi bophelong bo botle ka lebaka la ho hema le ho kopana le letlalo.Ka hona, hoa hlokahala ho e sireletsa nakong ea ts'ebetso, ho roala limaske, liatlana le likhalase, 'me u sebetse ka hood ea mosi.
Thithreitol (DTT) e le moemeli oa ho kuta ka libeteri tsa lithium-sulfur
Lithium-sulfur battery e nkoa e le tsamaiso ea betri e nang le bokhoni bo boholo ka lebaka la matla a eona a phahameng a matla le tšireletso ea tikoloho.Leha ho le joalo, "shuttle effect" ea polysulfides e lebisa bophelong bo bobe ba potoloho le ho itšehla thajana ho tebileng, e leng ho thibelang tšebeliso ea eona.lebaka.
Thiothreitol (DTT) e ka eketsoa betring joalo ka sekoli.E ka khona ho kuta ka potlako litlamo tsa disulfide mocheso oa kamore, ho kuta li-polysulfide tse phahameng ho thibela ho qhibiliha ha tsona, ho thibela phello ea shuttle, le ho eketsa lithium Ts'ebetso ea electrochemical ea li-betri tsa sulfure.
Dithiothreitol (DTT) joalo ka kenyelletso ea electrolyte ka har'a alkaline aluminium / libeteri tsa moea
Ka li-betri tsa alkaline tsa aluminium / moea, dithiothreitol e ka etsa seaparo sa ts'ireletso se ts'oanang le se tsitsitseng ka litlamo tse matla tsa covalent holim'a anode ea aluminium, e thibela ho itšehla thajana ha anode ea aluminium, le ho ntlafatsa ts'ebetso ea eona ka katleho.
Nako ea poso: Dec-31-2021