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 ulungiso 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 Oxide particles ezidalwe ngokuxuba i-nanoparticles kunye nomhlaba onqabileyo kwi-nitric acid.I-ZnO nanoparticles yenziwe ngeCerium (Ce), iPraseodymium (Pr), iLanthanum ( I-LA), kunye ne-Gadolinium (Gd.) I-Lanthanum-doped nano-Zinc Oxide particles ifunyenwe i-85% esebenzayo ngokuchasene ne-P. aeruginosa kunye ne-E. Coli kwiintsholongwane zebhaktheriya. ukuba sesichengeni sokukhanya 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 ezibonakalayo 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