Zvinhu zvakasanganiswa zvejira rechiponji zvinogadzirwa nekristaro zvinoshandiswa kubvisa njodzi dzezvinhu zvipenyu nemakemikari. Mufananidzo wacho unobva: Northwestern University
Zvinhu zvakagadzirwa nefiber zvakagadzirwa neMOF zvinogona kushandiswa sejira rinodzivirira kubva kunjodzi dzezvinhu zvipenyu nemakemikari.
Machira anouraya zvipembenene ane N-chloro anoshanda zvakawanda uye anogona kushandiswazve uye anobvisa chepfu anoshandisa furemu yakasimba yesimbi ye zirconium (MOF)
Zvinhu zvakagadzirwa nefiber zvinoratidza kushanda nekukurumidza kwebiocidal kurwisa mabhakitiriya eGram-negative (E. coli) uye mabhakitiriya eGram-positive (Staphylococcus aureus), uye mhando yega yega inogona kuderedzwa kusvika ku7 logarithms mukati memaminitsi mashanu.
MOF/fiber composites yakazara ne active chlorine inogona kuparadza sulfur mustard pamwe chete nemakemikari ayo anonzi 2-chloroethyl ethyl sulfide (CEES) nehafu yehupenyu hwemaminitsi matatu.
Chikwata chekutsvagisa kubva kuNorthwestern University chakagadzira jira rine mabasa akawanda rinogona kubvisa njodzi dzezvipenyu (senge coronavirus itsva inokonzera COVID-19) uye njodzi dzemakemikari (senge dzinoshandiswa muhondo dzemakemikari).
Kana jira rava pangozi, jira racho rinogona kudzorerwa pariri pakutanga kuburikidza nekurapwa kuri nyore kwekubvisa ganda.
"Kuva nezvinhu zviviri zvinogona kuita kuti chepfu dzemakemikari nedzezvipenyu dzishande panguva imwe chete kwakakosha nekuti kuoma kwekubatanidza zvinhu zvakawanda kuti basa iri ripere kwakakwira zvikuru," akadaro Omar Farha wekuNorthwestern University, uyo ari nyanzvi dzesimbi-organic kana MOF, iyi ndiyo hwaro hwetekinoroji.
Farha ipurofesa wekemesitiri paWeinberg School of Arts and Sciences uye munyori weongororo iyi. Iye inhengo yeInternational Institute of Nanotechnology paNorthwestern University.
MOF/fiber composites yakavakirwa patsvagurudzo yekare apo timu yaFarha yakagadzira nanomaterial inogona kumisa tsinga dzine chepfu. Kuburikidza nekuvhiyiwa kudiki, vaongorori vanogonawo kuwedzera mishonga inorwisa mavhairasi uye inorwisa mabhakitiriya kune mishonga iyi.
Faha akati MOF i "chipanji chekugezesa chakanyatsogadzirwa." Zvinhu zvemhando ye nano-size zvakagadzirwa nemaburi akawanda, anogona kubata gasi, utsi nezvimwe zvinhu zvakaita sechipanji zvinobata mvura. Mujira idzva rakagadzirwa, gomba re MOF rine chinhu chinogona kudzima makemikari ane chepfu, mavhairasi uye mabhakitiriya. Zvinhu zve nanomaterial zvine maburi zvinogona kuputirwa nyore nyore pashinda dzemachira.
Vaongorori vakaona kuti MOF/fiber composites yakaratidza kushanda nekukurumidza kurwisa SARS-CoV-2, pamwe nemabhakitiriya eGram-negative (E. coli) uye mabhakitiriya eGram-positive (Staphylococcus aureus). Pamusoro pezvo, MOF/fiber composites yakazara ne active chlorine inogona kukurumidza kuparadza mustard gas uye makemikari ayo akafanana (2-chloroethyl ethyl sulfide, CEES). Ma nanopores eMOF zvinhu zvakaputirwa pajira akafara zvakakwana kuti abvumire ziya nemvura kubuda.
Farha akawedzera kuti chinhu ichi chinosanganiswa chinogona kuwedzerwa nekuti chinongoda michina yekugadzira machira inoshandiswa mumaindasitiri chete. Kana ikashandiswa pamwe chete nemasiki, chinhu ichi chinofanira kukwanisa kushanda panguva imwe chete: kudzivirira munhu anopfeka masiki kubva kumavhairasi ari pedyo, uye kudzivirira vanhu vanobata munhu ane hutachiona akapfeka mask.
Vaongorori vanogonawo kunzwisisa nzvimbo dzinoshanda dzezvinhu padanho reatomu. Izvi zvinovabvumira ivo nevamwe kuwana hukama hwemaumbirwo-kushanda kuti vagadzire zvimwe zvinhu zvinosanganiswa zvakavakirwa paMOF.
Dzimai chlorine inoshanda inodzokororwa muzvinhu zvakagadzirwa ne zirconium-based MOF textile composites kubvisa njodzi dzezvinhu zvipenyu nemakemikari. Journal of the American Chemical Society, Gunyana 30, 2021.
Rudzi rweSangano Rudzi rweSangano Sector/Indasitiri Dzidzo Hurumende yeFederal Hurumende yeNyika/Yemunharaunda Masoja Masangano Asingaite purofiti Midhiya/Hukama neVeruzhinji Zvimwe
Nguva yekutumira: Gumiguru-23-2021