Ilaphu lesponji elicwangcisiweyo lekristale elidityanisiweyo lisetyenziselwa ukuphelisa izoyikiso zebhayoloji kunye neekhemikhali. Umthombo womfanekiso: IYunivesithi yaseNorthwestern
I-multifunctional i-MOF-based fiber composite imathiriyeli eyilwe apha inokusetyenziswa njengelaphu elikhuselayo kwiingozi zebhayoloji kunye neekhemikhali.
Izinto ezininzi ezisebenzayo kunye ne-N-chloro-based insecticidal kunye ne-detoxifying textiles isebenzisa i-zirconium metal organic frame eyomeleleyo (MOF)
I-fiber composite material ibonisa umsebenzi okhawulezayo we-biocidal ngokuchasene zombini iibhaktheriya ze-Gram-negative (E. coli) kunye ne-Gram-positive bacteria (i-Staphylococcus aureus), kunye noxinzelelo ngalunye lunokunciphisa ukuya kwi-7 logarithms ngaphakathi kwemizuzu ye-5.
I-MOF/i-fiber composites elayishwe ngeklorini esebenzayo inokukhetha kwaye ngokukhawuleza ithobe isalfa yemostade kunye ne-analogue yemichiza yayo i-2-chloroethyl ethyl sulfide (CEES) kunye nesiqingatha sobomi obungaphantsi kwemizuzu emi-3.
Iqela lophando elivela kwiYunivesithi yaseMntla-ntshona liphuhlise ilaphu elinemisebenzi emininzi elinokuphelisa izoyikiso zebhayoloji (ezifana nekoronavirus entsha ebangela i-COVID-19) kunye nezoyikiso zemichiza (ezifana nezo zisetyenziswa kwimfazwe yemichiza).
Emva kokuba ilaphu lisongelwa, izinto eziphathekayo zinokubuyiselwa kwimeko yazo yangaphambili ngonyango olulula lwe-bleaching.
"Ukuba nezinto ezisebenza kabini ezinokuthi ngaxeshanye zingasebenzi imichiza kunye netyhefu yebhayoloji ibalulekile kuba ubunzima bokudibanisa izinto ezininzi ukugqiba lo msebenzi buphezulu kakhulu," utshilo u-Omar Farha weYunivesithi yaseNorthwestern, oyisiseko sesinyithi-organic okanye iingcali ze-MOF. , esi sisiseko sobugcisa.
UFarha yinjingalwazi yezobuGcisa neSayensi kwiSikolo saseWeinberg kunye nombhali ohambelana nolu phando. Ulilungu le-International Institute of Nanotechnology kwiYunivesithi yaseNorthwestern.
Imidibaniso ye-MOF/fiber isekwe kuphando lwangaphambili apho iqela likaFarha lenze i-nanomaterial enokuthi ingasebenzi ii-agent ze-nerve ezinetyhefu. Ngokwenza imisebenzi encinci, abaphandi banokongeza i-antiviral kunye ne-antibacterial agents kwizinto eziphathekayo.
UFaha uthe i-MOF "sisipontshi sokuhlambela esichanekileyo." Izinto ezinobungakanani be-Nano ziyilwe zinemingxuma emininzi, enokuthi ibambe igesi, umphunga kunye nezinye izinto ezifana nesiponji sibambe amanzi. Kwilaphu elitsha elihlanganisiweyo, i-catalyst ye-MOF ine-catalyst enokuthi ingasebenzi iikhemikhali ezinobuthi, iintsholongwane kunye neebhaktheriya. I-nanomaterials ye-Porous inokugqunywa ngokulula kwi-textile fibers.
Abaphandi bafumanise ukuba imidibaniso ye-MOF/ifayibha ibonise umsebenzi okhawulezayo ngokuchasene ne-SARS-CoV-2, kunye neebhaktheriya zeGram-negative (E. coli) kunye ne-Gram-positive bacteria (Staphylococcus aureus). Ukongezelela, i-MOF / i-fiber composites elayishwe ngeklorini esebenzayo inokunciphisa ngokukhawuleza igesi yemostade kunye ne-analogues yemichiza (2-chloroethyl ethyl sulfide, CEES). I-nanopores yezinto ze-MOF ezifakwe kwi-textile zibanzi ngokwaneleyo ukuvumela ukubila kunye namanzi ukubaleka.
UFarha wongeze ukuba le mathiriyeli idityanisiweyo iyakaleka kuba ifuna kuphela izixhobo ezisisiseko zokusetyenzwa ngamalaphu ngoku ezisetyenziswa kushishino. Xa isetyenziswa ngokudibeneyo nemaski, izixhobo kufuneka zikwazi ukusebenza ngaxeshanye: ukukhusela umntu onxibe imaski kwiintsholongwane ezikummandla wabo, kunye nokukhusela abantu abadibana nomntu owosulelekileyo onxibe imask.
Abaphandi banokuqonda iindawo ezisebenzayo zemathiriyeli kwinqanaba le-athomu. Oku kuvumela bona kunye nabanye ukuba bafumane ulwakhiwo-ubudlelwane bokusebenza ukwenza ezinye izinto ezihlanganisiweyo ezise-MOF.
Immobilize i-chlorine esebenzayo evuselelekayo kwi-zirconium-based textile composites ye-MOF ukuphelisa izoyikiso zebhayoloji kunye neekhemikhali. Ijenali yeAmerican Chemical Society, nge-30 kaSeptemba 2021.
Uhlobo loMbutho Udidi lweCandelo laBucala/uShishino lweziFundo kuRhulumente woBurhulumente kwiLizwe/uMkhosi woMkhosi weNgingqi weMedia weMedia/uNxibelelwano noLuntu Okunye
Ixesha lokuposa: Oct-23-2021