Lesela la seponche sa kristale se ka khonehang se kopantsoeng se sebelisetsoang ho felisa litšokelo tsa baeloji le lik'hemik'hale.Mohloli oa setšoantšo: Univesithi ea Northwestern
Lintho tse ngata tse entsoeng ka fiber tse thehiloeng ho MOF tse entsoeng mona li ka sebelisoa e le lesela le sireletsang khahlanong le litšokelo tsa likokoana-hloko le lik'hemik'hale.
Masela a sebetsang ka bongata le a nchafalitsoeng a entsoeng ka likokoana-hloko tse thehiloeng ho N-chloro le ho tlosa chefo a sebelisa foreimi e matla ea zirconium metal organic frame (MOF)
Thepa e entsoeng ka fiber e bonts'a ts'ebetso e potlakileng ea biocidal khahlano le libaktheria tsa Gram-negative (E. coli) le libaktheria tsa Gram-positive (Staphylococcus aureus), 'me mofuta o mong le o mong o ka fokotsoa ka li-logarithms tse 7 nakong ea metsotso e 5.
Li-composite tsa MOF/fiber tse nang le chlorine e sebetsang li ka senya mosetareta oa sebabole ka mokhoa o ikhethileng le ka potlako le analogue ea eona ea lik'hemik'hale 2-chloroethyl ethyl sulfide (CEES) ka halofo ea bophelo ea metsotso e ka tlase ho 3.
Sehlopha sa lipatlisiso se tsoang Univesithing ea Northwestern se thehile lesela le nang le mesebetsi e mengata e ka felisang litšokelo tsa baeloji (joalo ka coronavirus e ncha e bakang COVID-19) le litšokelo tsa lik'hemik'hale (tse kang tse sebelisoang ntoeng ea lik'hemik'hale).
Ka mor'a hore lesela le sokeloe, thepa e ka khutlisetsoa boemong ba eona ba pele ka phekolo e bonolo ea bleaching.
"Ho ba le lisebelisoa tse sebetsang tse peli tse ka thibelang lik'hemik'hale le likokoana-hloko ka nako e le 'ngoe ho bohlokoa hobane ho rarahana ha ho kopanya lisebelisoa tse ngata ho phetha mosebetsi ona ho phahame haholo," ho boletse Omar Farha oa Univesithi ea Northwestern, eo e leng moralo oa tšepe kapa litsebi tsa MOF. , ona ke motheo oa theknoloji.
Farha ke moprofesa oa k'hemistri Sekolong sa Weinberg sa Bonono le Saense ebile e le sengoli se tsamaisanang le thuto.Ke setho sa Setsi sa Machaba sa Nanotechnology Univesithing ea Northwestern.
Li-composite tsa MOF/fiber li ipapisitse le liphuputso tsa pejana moo sehlopha sa Farha se thehileng le nanomaterial e ka sitisang methapo ea kutlo e chefo.Ka lits'ebetso tse ling tse nyane, bafuputsi ba ka eketsa lisebelisoa tsa antiviral le antibacterial ho thepa.
Faha o itse MOF ke "seponche se nepahetseng sa ho hlapa."Lisebelisoa tsa boholo ba Nano li entsoe ka likoti tse ngata, tse ka tšoarang khase, mouoane le lintho tse ling tse kang seponche se tšoara metsi.Lesela le lecha le kopantsoeng, sekoti sa MOF se na le mohloli o ka thibelang lik'hemik'hale tse chefo, livaerase le libaktheria.Li-nanomaterials tsa porous li ka koaheloa habonolo holim'a likhoele tsa masela.
Bafuputsi ba fumane hore metsoako ea MOF/fiber e bontšitse tšebetso e potlakileng khahlanong le SARS-CoV-2, hammoho le libaktheria tsa Gram-negative (E. coli) le libaktheria tsa Gram-positive (Staphylococcus aureus).Ho feta moo, metsoako ea MOF/fiber e nang le chlorine e sebetsang e ka senya khase ea mosetareta ka potlako le li-analogue tsa eona tsa lik'hemik'hale (2-chloroethyl ethyl sulfide, CEES).Li-nanopores tsa lisebelisoa tsa MOF tse koahetsoeng ka masela li pharalletse ka ho lekaneng ho lumella mofufutso le metsi ho baleha.
Farha o ekelitse hore thepa ena e kopaneng e ea senyeha hobane e hloka feela lisebelisoa tsa mantlha tsa ho lokisa masela tse sebelisoang hona joale indastering.Ha e sebelisoa hammoho le mask, thepa e lokela ho sebetsa ka nako e le 'ngoe: ho sireletsa motho ea roalang maske ho livaerase tse haufi le bona, le ho sireletsa batho ba kopanang le motho ea tšoaelitsoeng ea roetseng maske.
Bafuputsi ba ka boela ba utloisisa libaka tse sebetsang tsa lisebelisoa boemong ba athomo.Sena se lumella bona le ba bang ho fumana likamano tsa ts'ebetso ea sebopeho ho theha lisebelisoa tse ling tse thehiloeng ho MOF.
Thibela chlorine e ka nchafatsoang ka har'a li-composite tsa masela tse thehiloeng ho zirconium ho felisa litšokelo tsa baeloji le lik'hemik'hale.Journal of the American Chemical Society, la 30 Loetse 2021.
Mofuta oa Mokhatlo Mofuta oa Mokhatlo Lekala la Poraefete/Indasteri Academic Federal Government State/Sesole sa Puso ea Libaka Mecha ea litaba e sa Etseng phaello/Likamano Tse ling
Nako ea poso: Oct-23-2021