I-Antimicrobial Polyurea Coatings kunye ne-Rare Earth-Doped Nano-Zinc Oxide Particles
umthombo:AZO MATERIALSUbhubhani we-Covid-19 ubonakalise imfuno engxamisekileyo ye-antiviral kunye ne-antimicrobial coatings kumphezulu kwiindawo zikawonke-wonke kunye nokusingqongileyo kwezempilo. Uphando lwakutsha nje olupapashwe ngo-Okthobha ka-2021 kwijenali yeMicrobial Biotechnology ibonise ulungiselelo olukhawulezayo lwe-nano-Zinc oxide doped yokwambathisa i-polyurea efuna ukujongana nalo mba. usulelo. Imfuno ecinezelayo yeekhemikhali ezikhawulezayo, ezisebenzayo, nezingeyotyhefu kunye ne-antimicrobial kunye ne-antiviral surface coatings iye yakhuthaza uphando olutsha kwiinkalo ze-biotechnology, i-chemistry chemistry, kunye nesayensi yezinto eziphathekayo. kwaye ubulale i-biostructures kunye ne-microorganisms xa udibana. Bathintela ukukhula kwee-microorganisms ngokusebenzisa ukuphazamiseka kwe-membrane yeselula. Baphinde baphucule iipropathi zomphezulu, ezifana nokuxhathisa i-corrosion kunye nokuqina.Ngokutsho kweZiko laseYurophu loLawulo lweSifo kunye noThintelo, abantu abazizigidi ezi-4 (malunga nokuphindwe kabini kubemi baseNew Mexico) kwihlabathi jikelele ngonyaka bafumana usulelo olunxulumene nezempilo. Oku kukhokelela ekufeni kwabantu abangama-37,000 kwihlabathi liphela, imeko imbi kakhulu kumazwe asakhasayo apho abantu basenokungakwazi ukufikelela kucoceko olufanelekileyo kunye neziseko zococeko lwezempilo. Kwihlabathi laseNtshona, ii-HCAI zingoyena nobangela wesithandathu omkhulu wokufa.Yonke into ichaphazeleka kukungcoliseka ziintsholongwane kunye neentsholongwane - ukutya, izixhobo, umphezulu kunye neendonga, kunye namalaphu yimizekelo nje embalwa. Kwaneshedyuli eqhelekileyo yezococeko ayinakubulala yonke intsholongwane ekhoyo kumphezulu, ke ngoko kukho imfuneko ecinezelayo yokuphuhlisa iileyibhile ezingeyotyhefu ezithintela ukukhula kwentsholongwane ukuba yenzeke. Kwimeko ye-Covid-19, izifundo zibonise ukuba intsholongwane ingahlala isebenza. kwiindawo ezihlala ziphathwa ngentsimbi ecocekileyo kunye neplastiki ukuya kuthi ga kwiiyure ezingama-72, nto leyo ebonisa imfuneko engxamisekileyo yokugquma umphezulu oneempawu zokulwa neentsholongwane. Imiphezulu ye-Antimicrobial isetyenziswe kwimimiselo yokunakekelwa kwempilo iminyaka engaphezu kweshumi, isetyenziselwa ukulawula ukuqhambuka kwe-MRSA.I-Zinc Oxide - I-Antimicrobial Chemical Compound Zinc oxide (ZnO) i-antimicrobial enamandla kunye ne-antiviral properties. Ukusetyenziswa kwe-ZnO kuye kwaphononongwa ngamandla kule minyaka yakutsha nje njengesithako esisebenzayo kwiikhemikhali ezininzi ze-antimicrobial kunye ne-antiviral. Uphando oluninzi lwetyhefu luye lwafumanisa ukuba i-ZnO ayinayo ityhefu kubantu nakwizilwanyana kodwa iyasebenza kakhulu ekuphazamiseni iimvulophu zeselula ze-microorganisms.Iinkqubo zokubulala i-microorganism ye-Zinc oxide ingabalelwa kwiipropati ezimbalwa. I-Zn2 + ion ikhutshwe ngokuchithwa kwenxalenye ye-Zinc Oxide particles ephazamisa umsebenzi oqhubekayo we-antimicrobial nakwezinye ii-microbes ezikhoyo, kunye noqhagamshelwano oluthe ngqo kunye neendonga zeseli kunye nokukhululwa kweentlobo ze-oksijini esebenzayo.I-Zinc Oxide umsebenzi we-antimicrobial udibaniswa nobukhulu be-particle kunye nokugxininiswa. : iincinci ezincinci kunye nezisombululo eziphezulu ze-zinc nanoparticles ziye zanda umsebenzi we-antimicrobial. I-Zinc Oxide nanoparticles ezincinci ngobukhulu zingena ngokulula kwi-microbial cell membrane ngenxa yendawo enkulu yobuso. Izifundo ezininzi, ngakumbi kwi-Sars-CoV-2 mva nje, ziye zacacisa inyathelo elisebenzayo ngokuchasene neentsholongwane.Ukusebenzisa i-RE-Doped Nano-Zinc Oxide kunye nePolurea Coatings ukwenza uMphezulu ngePropathi ePhezulu yeAntimicrobialIqela likaLi, Liu, Yao, kunye neNarasimalu licebise. indlela yokulungiselela ngokukhawuleza i-antimicrobial polyurea coatings ngokuzisa i-rare-doped-doped nano-Zinc Iingqungquthela ze-oxide ezenziwe ngokuxuba i-nanoparticles kunye nomhlaba onqabileyo kwi-nitric acid.I-ZnO nanoparticles yachithwa kunye ne-Cerium (Ce), i-Praseodymium (Pr), i-Lanthanum (LA), kunye ne-Gadolinium (Gd.) I-Lanthanum-doped nano-Zinc Oxide particles were Ifunyaniswe isebenza ngama-85% ngokuchasene ne-P. aeruginosa kunye ne-E. Coli kwiintsholongwane zebhaktiriya. I-nanoparticles nayo ihlala i-83% isebenzayo ekubulaleni ii-microbes, nasemva kwemizuzu engama-25 yokuvezwa kukukhanya kwe-UV. I-doped nano-Zinc Oxide particles ephononongwe kwisifundo ingabonisa ukuphuculwa kwempendulo yokukhanya kwe-UV kunye nokuphendula kwe-thermal ekutshintsheni kweqondo lokushisa. I-Bioassays kunye ne-surface characterization nayo ibonelele ubungqina bokuba iindawo zigcina imisebenzi yazo ye-antimicrobial emva kokusetyenziswa ngokuphindaphindiweyo.Ii-Polyurea coatings nazo zinokuqina okuphezulu kunye nomngcipheko omncinci wokuxobula indawo. Ukuqina kwemiphezulu edityaniswe nemisebenzi ye-antimicrobial kunye nokuphendula kokusingqongileyo kwamasuntswana e-nano-ZnO kubonelela ngokuphuculwa kwamandla abo kwizicelo ezisebenzayo kwiindawo ezahlukeneyo kunye namashishini. usulelo lweHPAIs kwiindawo zokhathalelo lwempilo. Kukwakhona ukusetyenziswa kwabo kwishishini lokutya ukubonelela ngokupakishwa kwe-antimicrobial kunye nefibers, ukuphucula umgangatho kunye neshelufu-ubomi bokutya kwixesha elizayo. Ngelixa olu phando lusaqalayo, ngaphandle kwamathandabuzo kungekudala luza kuphuma elabhoratri luye kwinqanaba lezorhwebo.
Ixesha lokuposa: Nov-10-2021