Nhasi tinoda kugovera mamwe antibacterial kushandisa nanoparticles zvinhu sepazasi:

1. Nano sirivheri

Antibacterial musimboti we nano sirivheri zvinhu

(1).Shandura kupera kwesero membrane.Kurapa mabhakitiriya ane nano sirivheri kunogona kushandura kupera kwesero membrane, zvichiita kuti kurasikirwa kwezvokudya zvakawanda uye metabolites, uye pakupedzisira kufa kwesero;

(2).Silver ion inokanganisa DNA

(3).Deredza dehydrogenase basa.

(4).Oxidative stress.Nano sirivheri inogona kupinza maseru kuburitsa ROS, iyo inowedzera kuderedza zvirimo zvakaderedzwa coenzyme II (NADPH) oxidase inhibitors (DPI), zvichitungamira kurufu rwesero.

Zvigadzirwa zvinoenderana: Nano sirivheri poda, ine ruvara sirivha antibacterial fluid, transparent silver antibacterial liquid

2.Nano zinc oxide 

Kune maviri antibacterial maitiro e nano-zinc oxide ZNO:

(1).Photocatalytic antibacterial mechanism.Kureva kuti, nano-zinc oxide inogona kuora maerekitironi asina kunaka mumvura nemhepo pasi pekuvhenekera kwezuva, kunyanya chiedza che ultraviolet, ichisiya maburi ane mhosva, izvo zvinogona kukurudzira kuchinja kweokisijeni mumhepo.Inoshanda okisijeni, uye inosanganisa nemhando dzakasiyana siyana dzehutachiona, nekudaro ichiuraya bhakitiriya.

(2).Iyo antibacterial nzira yekuparara kwesimbi ion ndeyekuti zinc ions ichaburitswa zvishoma nezvishoma.Kana yasvika pakusangana nebhakitiriya, inosanganiswa neiyo inoshanda protease mubhakitiriya kuita kuti isashande, nekudaro ichiuraya mabhakitiriya.

3. Nano titanium oxide

Nano-titanium dioxide inoparadza mabhakitiriya pasi pekuita kwe photocatalysis kuti iwane antibacterial effect.Sezvo chimiro chemagetsi che nano-titanium dioxide chinoratidzwa neTiO2 valence band yakazara uye isina chinhu conduction bhendi, muhurongwa hwemvura nemhepo, nano-titanium dioxide inoratidzirwa kuchiedza chezuva, kunyanya ultraviolet rays, apo simba re electron rinosvika kana inodarika bhendi rayo.Kugona nguva.Maerekitironi anogona kufara kubva kubhendi yevalence kuenda kune conduction bhendi, uye maburi anoenderana anogadzirwa mubhendi yevalence, kureva, erekitironi nemaburi maviri anogadzirwa.Pasi pechiito chemunda wemagetsi, maerekitironi nemakomba zvinopatsanurwa uye zvinoenda kunzvimbo dzakasiyana pane chidimbu chepamusoro.Kuitika kwakatevedzana kunoitika.Iyo okisijeni yakavharirwa pamusoro peTiO2 adsorbs uye inoteya maerekitironi kuti iite O2, uye iyo inogadzirwa superoxide anion radicals inobata (oxidize) ine yakawanda organic zvinhu.Panguva imwecheteyo, inogona kuita neiyo organic matter mubhakitiriya kugadzira CO2 neH2O;nepo maburi achiisa OH neH2O adsorbed pamusoro peTiO2 kusvika ·OH, ·OH ine simba reoxidizing rakasimba, kurwisa zvisungo zvisina unsaturated zveorganic or kubvisa H maatomu anoburitsa mahara radicals matsva, anokonzeresa cheni kuita, uye pakupedzisira kukonzera. mabhakitiriya kuti aore.

4. Nano mhangura,nano mhangura oxide, nano cuprous oxide

Iyo yakanaka inochaja yemhangura nanoparticles uye mabhakitiriya akashata anoita kuti nanoparticles yemhangura ibatane nebhakitiriya kuburikidza nekukwezva kwechaji, uye ipapo nanoparticles dzemhangura dzinopinda mumasero ebhakitiriya, zvichiita kuti bhakitiriya sero rusvingo rutsemuke uye sero fluid riyerere. kunze.Kufa kwebhakitiriya;iyo nano-copper particles inopinda muchitokisi panguva imwe chete inogona kuwirirana neprotein enzymes mumasero ebhakitiriya, kuitira kuti ma enzymes adzorerwe uye arege kushandiswa, nokudaro achiuraya mabhakitiriya.

Ose ari maviri ekutanga emhangura nemhangura makomisheni ane antibacterial properties, kutaura zvazviri, iwo ese ioni dzemhangura mukuita sterilizing.

Iyo diki saizi yechikamu, zviri nani iyo antibacterial mhedzisiro maererano neantibacterial zvinhu, inova iyo diki saizi maitiro.

5.Graphene

Iyo antibacterial chiitiko chegraphene zvinhu zvinonyanya zvinosanganisira nzira ina:

(1).Kubaya kwemuviri kana "nano banga" nzira yekucheka;

(2).Utachiona/membrane kuparadzwa kunokonzerwa neoxidative stress;

(3).Transmembrane yekutakura block uye / kana bhakitiriya kukura block inokonzerwa nekupfeka;

(4).Sero membrane haina kugadzikana nekuisa uye kuparadza cell membrane zvinhu.

Zvinoenderana neakasiyana ekubatana nyika dzegraphene zvinhu uye mabhakitiriya, nzira dzataurwa pamusoro apa dzakati wandei dzinokonzeresa kuparadzwa kwesero membranes (bactericidal effect) uye inotadzisa kukura kwebhakitiriya (bacteriostatic effect).