I-Dithiothreitol (DTT), CAS: 3483-12-3 uhlobo olusha lwesithako esiluhlaza

I-Dithiothreitol (DTT), i-CAS: i-3483-12-3, njenge-reagent yocwaningo lwesayensi esetshenziswa kabanzi, ivame ukusetshenziswa njenge-ejenti yokunciphisa i-sulfhydryl DNA, i-ejenti evikelayo, kanye nokunciphisa izibopho ze-disulfide kumaprotheni.Uhlobo olusha lwezithako eziluhlaza ludlala indima ebalulekile ekuthuthukiseni ukusebenza kwebhethri.

I-Dithiothreitol (DTT) iyi-ejenti yokunciphisa eqinile, futhi ukunciphisa kwayo kubangelwa kakhulu ukuzinza kwe-conformational yendandatho enamalungu ayisithupha (equkethe amabhondi e-disulfide) esimweni sayo se-oxidation.Ukwehliswa kwebhondi ye-disulfide evamile nge-dithiothreitol kuhlanganisa ukusabela okubili okulandelanayo kokushintshisana kwebhondi ye-sulfhydryl-disulfide.Amandla okunciphisa e-dithiothreitol (DTT) athintwa inani le-pH, futhi angakwazi ukudlala kuphela umphumela wokunciphisa lapho inani le-pH likhulu kuno-7. Lokhu kungenxa yokuthi ama-anion angama-thiolate asusiwe kuphela asebenzayo, kuyilapho ama-mercaptan engenzi, futhi I-pKa yamaqembu e-mercapto ngokuvamile ingu-8.3.

I-Dithiothreitol (DTT) ivame ukusetshenziselwa ukunciphisa izibopho ze-disulfide zama-molecule amaprotheni nama-polypeptides.Ngokuvamile isetshenziswa njenge-protein sulfhydryl protective agent futhi isetshenziselwa amalungiselelo okugoma ukuvimbela izinsalela ze-protein cysteine ​​​​ukwakheka kwe-intramolecular and intermolecular disulfides.ukhiye.Enqubweni yokuthola i-nucleic acid, i-dithiothreitol (DTT) ingacekela phansi amabhondi e-disulfide kuphrotheni ye-RNase, iguqule i-RNase, futhi yenze kube lula ukuqhutshwa kokuhlolwa okufana nokwakhiwa komtapo wezincwadi we-RNA kanye nokukhulisa i-RNA.I-Dithiothreitol (DTT) nayo isetshenziswa njenge-antidote ukuvikela amaseli nezicubu, njenge-radioprotectant, njll.

Kodwa-ke, i-dithiothreitol (DTT) ngokuvamile ayikwazi ukunciphisa izibopho ze-disulfide ezifakwe esakhiweni samaprotheni (i-solvent ayifinyeleleki).Ukwehliswa kwalawo mabhondi e-disulfide ngokuvamile kudinga ukuguqulwa kwamaprotheni kuqala.

Ukuze uvimbele umphumela we-shuttle wamabhethri e-lithium-sulfur futhi uthuthukise ukusebenza kwe-electrochemical yamabhethri e-lithium-sulfur, zama ukusebenzisa i-dithiothreitol (DTT) njenge-ejenti yokugunda ukuze ugunda ama-polysulfide aphezulu ukuze uwavimbele ukuthi angancibiliki.I-Threitol (DTT) ixutshwe ephepheni le-carbon nanotubes elinezindonga eziningi (MWCNTs) ukuze kulungiswe i-DTT interlayer.I-interlayer ye-DTT ibekwe phakathi kweshidi le-electrode elihle kanye nesihlukanisi senkinobho ye-lithium-sulphur uhhafu weseli, kanye nokuminyana kwendawo ephethe isulfure yeshidi le-electrode ephozithivu Mayelana ne-2mg/cm2.Imiphumela yokubhekwa kwe-SEM iqinisekisa ukuthi i-DTT ihlakazeke ngokufanayo endaweni kanye nezikhala zephepha le-MWCNTs.Imiphumela yokuhlolwa kwe-Electrochemical ibonisa ukuthi ibhethri le-lithium-sulphur elinesakhiwo sesemishi le-DTT linomthamo othize wokuqala wokukhipha ongu-1288 mAh/g ngesilinganiso esingu-0.05C.Ngokokuqala ngqa, ukusebenza kahle kwe-coulombic kusondele ku-100%, futhi umthamo othize ngesikhathi sokushaja nokukhishwa ku-0.5C, 2C, kanye namazinga we-4C afinyelela ku-650mAh/g, 600mAh/g, kanye no-410mAh/g, ngokulandelana.Ukwethulwa kwesakhiwo sesemishi le-DTT kungasheya ngempumelelo ama-polysulfide e-oda eliphezulu.Ivimbela ukuthuthela ku-electrode ye-lithium negative, ngaleyo ndlela ivimbele umphumela we-shuttle futhi ithuthukise ukuzinza komjikelezo kanye nokusebenza kahle kwe-coulomb yamabhethri e-lithium-sulfur.

Kuyaphawuleka ukuthi i-dithiothreitol (DTT) iwubuthi.Isibonelo, lapho kukhona izinsimbi eziguqukayo, i-dithiothreitol (DTT) ingabangela ukulimala kwe-oxidative kuma-molecule e-biological.Ngesikhathi esifanayo, i-dithiothreitol (DTT) ) Ingaphinda ithuthukise ubuthi bezinye izinhlanganisela eziqukethe i-arsenic ne-mercury.I-Dithiothreitol (DTT) inephunga elimnandi, elingase libe yingozi empilweni ngenxa yokuhogela nokuthinta isikhumba.Ngakho-ke, kuyadingeka ukuyivikela ngesikhathi sokusebenza, ugqoke imaski, amagilavu ​​​​nezibuko, futhi usebenze ku-fume hood.