Dithiothreitol (DTT), CAS: 3483-12-3, semushonga unoshandiswa zvakanyanya mukutsvagisa kwesainzi, unowanzo shandiswa semushonga unodzikisa sulfhydryl DNA, mushonga unobvisa dziviriro, uye kuderedza ma disulfide bonds mumapuroteni. Rudzi rutsva rwemushonga wegirini runoita basa rakakosha mukuvandudza mashandiro ebhatiri.
Dithiothreitol (DTT) chinhu chinodzikisa simba, uye kudzikisa kwayo kunonyanya kukonzerwa nekugadzikana kwechimiro chering ine nhengo nhanhatu (ine disulfide bonds) mumamiriro ayo e oxidation. Kudzikiswa kwe typical disulfide bond ne dithiothreitol kunosanganisira maitiro maviri akatevedzana e sulfhydryl-disulfide bond exchange reactions. Simba rekudzikisa re dithiothreitol (DTT) rinokanganiswa ne pH value, uye rinogona chete kuita reduction effect kana pH value yakakura kupfuura 7. Izvi zvinodaro nekuti anions dze deprotonated thiolate chete ndidzo dzinoita reactive, nepo mercaptans dzisingadaro, uye pKa ye mercapto groups inowanzova 8.3.
Dithiothreitol (DTT) inowanzoshandiswa kuderedza disulfide bonds yemapuroteni molecules nemapolypeptides. Inowanzo shandiswa seprotective agent yeprotein sulfhydryl uye inoshandiswa mukugadzirira majekiseni kudzivirira mapuroteni cysteine residues kuti asagadzire intramolecular ne intermolecular disulfides. Mukuita kwekuona nucleic acid, dithiothreitol (DTT) inogona kuparadza disulfide bonds muRNase protein, denature the RNase, uye kuita kuti kuyedzwa kwakadai sekuvaka RNA library uye RNA amplification kuitwe. Dithiothreitol (DTT) inoshandiswawo semushonga wekudzivirira masero nematishu, se radioprotective, nezvimwewo.
Zvisinei, dithiothreitol (DTT) inowanzo tadza kuderedza ma disulfide bonds ari muprotein structure (solvent isingawanikwe). Kudzikiswa kwe disulfide bonds dzakadaro kunowanzoda denaturation yeprotein kutanga.
Kuti udzivise kushanda kwemabhatiri e lithium-sulfur uye kuvandudza mashandiro emagetsi emabhatiri e lithium-sulfur, edza kushandisa dithiothreitol (DTT) senzira yekuchekerera ma polysulfide emhando yepamusoro kuti asanyungudike. Threitol (DTT) inosanganiswa mupepa re multi-walled carbon nanotubes (MWCNTs) kugadzira DTT interlayer. DTT interlayer inoiswa pakati pe positive electrode sheet ne separator ye lithium-sulfur button half-cell, uye sulfur-carrying surface density ye positive electrode sheet Inenge 2mg/cm2. Mhedzisiro yeSEM inosimbisa kuti DTT yakapararira zvakaenzana pamusoro nepanze pepepa re MWCNTs. Mhedzisiro ye electrochemical test inoratidza kuti bhatiri re lithium-sulfur rine DTT sandwich structure rine first discharge specific capacity ye1288 mAh/g pachiyero che 0.05C. Kekutanga, kushanda zvakanaka kwe coulombic kuri pedyo ne100%, uye kugona kwacho panguva yekuchaja nekuburitsa pa 0.5C, 2C, uye 4C kunosvika 650mAh/g, 600mAh/g, uye 410mAh/g, zvichiteerana. Kuunzwa kwechimiro chesandwich cheDTT kunogona kubvisa polysulfides yepamusoro-soro. Kunodzivirira kuti isafambe ichienda ku lithium negative electrode, nokudaro zvichidzivisa shuttle effect uye kuvandudza kugadzikana kwecycle uye kushanda zvakanaka kwe coulomb yemabhatiri e lithium-sulfur.
Zvakakosha kuziva kuti dithiothreitol (DTT) chinhu chine chepfu. Semuenzaniso, kana paine simbi dzinoshanduka, dithiothreitol (DTT) inogona kukonzera kukuvara kwe oxidative kumamorekuru ehupenyu. Panguva imwe chete, dithiothreitol (DTT) ) Inogonawo kuwedzera chepfu yemamwe makemikari ane arsenic ne mercury. Dithiothreitol (DTT) ine hwema hunorwadza, hunogona kukuvadza hutano nekuda kwekufemerwa uye kusangana neganda. Saka, zvakakosha kuichengetedza panguva yekushanda, kupfeka masiki, magirovhosi nemagogorosi, uye kushanda mufume hood.
Thithreitol (DTT) semushonga wekuchekerera mabhatiri e lithium-sulfur
Bhatiri reLithium-sulfur rinoonekwa sehurongwa hwebhatiri hune simba guru nekuda kwesimba rayo rakawanda uye kuchengetedzwa kwezvakatipoteredza. Zvisinei, "shuttle effect" yepolysulfides inotungamira kuhupenyu husina kunaka hwema cycle uye kuzviburitsa zvakanyanya, izvo zvinotadzisa kushandiswa kwayo.
Thiothreitol (DTT) inogona kuwedzerwa kubhatiri sechinhu chinochera simbi. Inogona kuchera nekukurumidza ma disulfide bonds patembiricha yemumba, kuchera ma polysulfides emhando yepamusoro kudzivirira kunyungudika kwawo, kudzivirira shuttle effect, uye kuwedzera lithium The electrochemical performance yemabhatiri esulfur.
Dithiothreitol (DTT) sechinhu chinowedzera electrolyte mumabhatiri ealkaline aruminiyamu/mhepo
Mumabhatiri ealkaline aruminiyamu/mhepo, dithiothreitol inogona kugadzira layer yekudzivirira yakafanana uye yakagadzikana kuburikidza nemabond anochinjika pamusoro pearuminiyamu anode, kudzivirira kuzvikuvadza kwearuminiyamu anode, uye kuvandudza mashandiro ayo zvinobudirira.
Nguva yekutumira: Zvita-31-2021