Los ntawm ib qho kev pom me me, nano-zinc oxide raug cais raws li nanomaterial; Los ntawm cov tshuaj muaj pes tsawg leeg foundations, nws yog ib tug active oxide. Yog li ntawd, nws cov kab mob bactericidal txawv ntawm cov txheej txheem raug cuam tshuam nrog kev tso tawm ntawm cov hlau (zinc) ions.
Electrostatic Adsorption muaj
Vim yog cov tshuaj sib txuas ntawm zinc thiab oxygen, qhov chaw electronegativity ntawm zinc oxide feem ntau siab dua li cov hlau ions raug. Qhov no electronegativity feem ntau yog los ntawm nws qhov ntev nanoscale thiab cov yam ntxwv ntawm cov qauv; tshwj xeeb, ntawm nanoscale, ntau dua ntawm zinc atoms raug nthuav tawm ntawm qhov chaw, ua rau muaj qhov zoo tshaj plaws ntawm cov nqi. Tsis tas li ntawd, yog tias cov qauv siv lead ua ntawm nano-zinc oxide tsis zoo tag nrho- nthuav tawm ntau qhov tsis xws luag- nws cov yam ntxwv zoo yuav raug kho ntxiv. Hloov pauv, cov phab ntsa ntawm tes (suav nrog peptidoglycans, teichoic acids, thiab lipopolysaccharides) thiab cov cell membranes (suav ntawm phospholipids) ntawm cov kab mob ntawm cov kab mob muaj qhov tsis zoo. Raws li lub hauv paus ntsiab lus uas cov nqi sib txawv nyiam, nano-zinc oxide hais tsis yog- xaiv adsorbed mus rau cov kab mob hlwb.
Ionic Dissolution thiab cuam tshuam ntawm cov kab mob cell phab ntsa
Zinc ions tso tawm los ntawm qhov chaw ntawm zinc oxide cuam tshuam nrog cov kab mob ntawm cov kab mob, tshem tawm cov ions tseem ceeb -xws li Ca²⁺ thiab Mg²⁺- uas feem ntau tswj cov cell lub cev kev ua ub no. Qhov kev hloov pauv no ua rau cov denaturation thiab coagulation ntawm cov cellular proteins, nrog rau qhov tsis ua haujlwm ntawm cov enzymes, yog li cuam tshuam cov haujlwm qub ntawm phab ntsa cell thiab cell membrane. (Txawm li cas los xij, cov kev tshawb fawb tau qhia tias txawm tias qhov nce ntxiv ntawm kaum npaug ntawm zinc ntsev ions tsis tas yuav ua rau tib theem ntawm cov kab mob muaj txiaj ntsig zoo.)
Photocatalytic Sterilization
Nano-zinc oxide catalyzes hloov dej- ob qho tib si ntawm cov kab mob saum npoo thiab hauv lub cell- mus rau hydrogen peroxide (H₂O₂). Lub zog oxidizing zog ntawm H₂O₂, nrog rau nws cov oxidative byproducts, ncaj qha oxidize cov txheej txheem txheej txheej ntawm cov kab mob. Cov txheej txheem no cuam tshuam cov cell permeability barrier thiab destabilizes cov khoom siv sab hauv thiab sab nraud sib npaug ntawm lub cell, thaum kawg ua rau cov kab mob tuag.
Tsis tas li ntawd, cov khoom decomposition ntawm H₂O₂-xws li hydroxyl radicals thiab reactive oxygen hom- tuaj yeem cuam tshuam ncaj qha nrog microbial proteins thiab nucleic acids. Qhov kev cuam tshuam no ua rau muaj kev puas tsuaj rau cov khoom tseem ceeb ntawm tes, yog li ua rau cov kab mob tuag taus.
Nano-zinc oxide muaj peev xwm cuam tshuam cov cell membranes ntawm cov kab mob thiab cov kab mob, ua rau kom cov kab mob cytoplasm thiab coagulation ntawm cov kab mob kis kab mob. Ntxiv nrog rau nws cov tshuaj tua kab mob thiab tshuaj tua kab mob, nws tseem tuaj yeem decompose cov tshuaj lom neeg ua kom puas tsuaj tso tawm los ntawm cov seem ntawm cov kab mob tuag thiab cov kab mob. Yog li ntawd, nano-zinc oxide qhia tau hais tias muaj zog bactericidal, fungicidal, thiab antiviral zog, thiab kuj muaj peev xwm deodorizing zoo. Kev tshawb fawb qhia tias nano-zinc oxide ua kom tsis muaj menyuam thiab cov kab mob bacteriostatic tshaj 99% tawm tsam cov kab mob thiab cov kab mob, nrog rau kev tshem tawm tsw ntau tshaj 99%.
Los ntawm kev mob siab rau R&D cov neeg ua haujlwm ntawm Bofu Technology thiab Longda Nano, nano-zinc oxide antimicrobial masterbatch tau ua tiav tiav. Cov khoom no qhia txog kev ua kom tsis muaj menyuam ntau dua 95% tawm tsam ntau hom kab mob -xws li Gram- cov kab mob zoo, *E. coli*, and *S. aureus*-thiab muaj qhov ntev- siv tshuaj tua kab mob ntev.
