Namhlanje singathanda ukwabelana ngezinto ezisetyenziselwa i-antibacterial nanoparticles njengoko kungezantsi:

1. Nano isilivere

Umgaqo-antibacterial wezinto zesilivere ze-nano

(1).Guqula ukunyanzeliswa kwenwebu yeseli.Ukunyanga ibhaktheriya nge-nano yesilivere kunokutshintsha ukunyanzeliswa kwe-membrane yeseli, okukhokelela ekulahlekelweni kwezondlo ezininzi kunye ne-metabolites, kwaye ekugqibeleni ukufa kweeseli;

(2).I-ion yesilivere iyonakalisa iDNA

(3).Ukunciphisa umsebenzi we-dehydrogenase.

(4).Uxinzelelo lwe-oxidative.Isilivere ye-Nano inokubangela iiseli ukuba zivelise i-ROS, eqhubeka inciphisa umxholo wokunciphisa i-coenzyme II (NADPH) oxidase inhibitors (DPI), ekhokelela ekufeni kweeseli.

Iimveliso ezinxulumeneyo: I-Nano powder yesilivere, i-antibacterial liquid enemibala yesilivere, i-antibacterial liquid ecacileyo yesilivere

2.Nano zinc oxide 

Kukho iindlela ezimbini zokulwa ne-antibacterial ye-nano-zinc oxide ZNO:

(1).Indlela ye-antibacterial photocatalytic.Oko kukuthi, i-nano-zinc oxide inokubola i-electron ehlawuliswa kakubi emanzini kunye nomoya phantsi kokukhanya kwelanga, ngakumbi ukukhanya kwe-ultraviolet, ngelixa ishiya imingxuma echanekileyo, enokuvuselela utshintsho lwe-oksijini emoyeni.I-oksijini esebenzayo, kwaye i-oxidizes kunye neentlobo ze-microorganisms, ngaloo ndlela ibulala ibhaktheriya.

(2).Indlela yokulwa ne-antibacterial yokuchithwa kwe-ion yensimbi kukuba i-zinc ions iya kukhululwa ngokuthe ngcembe.Xa idibana neebhaktheriya, iya kudibanisa kunye neprotease esebenzayo kwibhaktheriya ukuyenza ingasebenzi, ngaloo ndlela ibulala ibhaktheriya.

3. Nano titanium oxide

I-Nano-titanium dioxide ibola ibhaktheriya phantsi kwesenzo se-photocatalysis ukuphumeza umphumo we-antibacterial.Ekubeni i-electronic structure ye-nano-titanium dioxide ibonakaliswe yi-valence band ye-TiO2 epheleleyo kunye nebhendi yokuqhuba engenanto, kwinkqubo yamanzi kunye nomoya, i-nano-titanium dioxide ibonakaliswe ekukhanyeni kwelanga, ngakumbi imisebe ye-ultraviolet, xa amandla e-electron efika okanye idlula isithuba sebhendi yayo.Ngaba ixesha.Ii-electron zinokonwaba kwi-valence band ukuya kwi-conduction band, kwaye imingxuma ehambelanayo iveliswa kwi-valence band, oko kukuthi, i-electron kunye ne-hole pairs zenziwa.Ngaphantsi kwesenzo sommandla wombane, ii-electron kunye nemingxuma ziyahlukana kwaye zifudukela kwiindawo ezahlukeneyo kwi-particle surface.Uthotho lweempendulo zenzeka.I-oksijini ebanjwe ebusweni be-adsorbs ye-TiO2 kwaye ibamba i-electron ukuze yenze i-O2, kwaye i-superoxide anion radicals eyenziwayo isabela (i-oxidize) kunye nezinto ezininzi eziphilayo.Ngexesha elifanayo, inokusabela kunye ne-organic matter kwibhaktheriya ukuvelisa i-CO2 kunye ne-H2O;ngelixa imingxuma i-oxidize i-OH kunye ne-H2O i-adsorbed kumphezulu we-TiO2 ukuya · OH, ·OH inamandla oxidizing, ihlasela iibhondi ezingaxutywanga ze-organic matter okanye i-H Atoms ivelisa i-radicals entsha yamahhala, ibangela i-chain reaction, kwaye ekugqibeleni ibangele. iintsholongwane ukubola.

4. Ubhedu lweNano,nano copper oxide, nano cuprous oxide

I-nanoparticles yobhedu ehlawulwe ngokufanelekileyo kunye neebhaktheriya ezihlawuliswa kakubi zenza i-nanoparticles yobhedu idibane neebhaktheriya ngokutsala umtsalane, emva koko i-nanoparticles yethusi ingena kwiiseli zebhaktheriya, ibangela ukuba udonga lweseli yebhaktheriya luphuke kwaye ulwelo lweseli luhambe. ngaphandle.Ukufa kwebhaktheriya;i-nano-copper particles engena kwiseli ngexesha elifanayo inokusebenzisana ne-protein enzymes kwiiseli zebhaktheriya, ukwenzela ukuba i-enzymes ikhutshwe kwaye ingasebenzi, ngaloo ndlela ibulala ibhaktheriya.

Zombini i-elemental copper kunye ne-copper compounds zineepropathi zokulwa ne-antibacterial, enyanisweni, zonke ziyi-ion zobhedu ekubulaleni iintsholongwane.

Ubuncinci ubungakanani be-particle, ngcono i-antibacterial effect ngokubhekiselele kwizinto ezichasene ne-antibacterial, okuyiyona mpembelelo encinci.

5.Igraphene

Umsebenzi we-antibacterial wezinto zegraphene ikakhulu ubandakanya iindlela ezine:

(1).Ukugqobhoza ngokomzimba okanye "i-nano knife" indlela yokusika;

(2).Ukutshatyalaliswa kwebhaktheriya / i-membrane ebangelwa uxinzelelo lwe-oxidative;

(3).Ibhloko yezothutho yeTransmembrane kunye/okanye ibhloko yokukhula kwebhaktheriya ebangelwa kukugquma;

(4).I-membrane yeseli ayizinzile ngokufaka kunye nokutshabalalisa izinto ze-membrane yeseli.

Ngokweemeko zoqhagamshelwano ezahlukeneyo zemathiriyeli yegraphene kunye neebhaktheriya, iindlela ezininzi ezikhankanyiweyo ngasentla zibangela ukutshatyalaliswa ngokupheleleyo kweembrane zeseli (impembelelo ye-bactericidal) kwaye inqanda ukukhula kwebhaktheriya (impembelelo ye-bacteriostatic).