Iyo yemuromo mhango yakaoma microecosystem ine anopfuura 23,000 marudzi ebhakitiriya anoitora.Mune mamwe mamiriro ezvinhu, mabhakitiriya aya anogona kukonzera zvakananga zvirwere zvemukanwa uye kunyange kukanganisa hutano hwese. Zvisinei, kushandiswa kwemishonga inorwisa mabhakitiriya kunopa nyaya dzakasiyana-siyana, kusanganisira kukurumidza kuparara kwemishonga, kusunungurwa, uye kugadzirwa kwemishonga inorwisa mabhakitiriya. Mumakore achangopfuura, tarisiro yekutsvagisa yakachinjika yakanangana nekugadzirwa kwezvinhu zvinosanganiswa zvine yakanakisa antimicrobial zvivakwa vachishandisa nanomaterials. Parizvino, nanosilver ion-based antibacterial materials uye graphene-based antibacterial zvinhu zvinowanzo shandiswa pamusika.Muchikamu chino, isu tichasuma iyo graphene antibacterial mashandiro uye kushandiswa muindasitiri yebhurashi.
Graphene imhando mbiri-dimensional kabhoni nanomaterial inoumbwa nekabhoni maatomu akarongwa mune hexagonal lattice ine sp2 yakasanganiswa orbitals.Zvakabva pairi zvinosanganisira graphene (G), graphene oxide (GO), uye yakaderedzwa graphene oxide (rGO). Vane zvimiro zvemakemikari ezvimiro zvitatu zvakasiyana-siyana uye zvimiro zvakapinza zvemupendero. Tsvakurudzo yakaratidza kutanhamara kweantibacterial properties uye biocompatibility yegraphene pamwe nezvinobuda pairi. Uyezve, vanoshanda sevatakuri vakakodzera kune antimicrobial agents, zvichiita kuti vavimbise zvakanyanya kune akasiyana maapplication mumuromo antimicrobial minda.
Zvakanakira zvegraphene antibacterial zvinhu
- Kuchengeteka uye Hushamwari Hwezvakatipoteredza, Zvisina chepfu: Kushandiswa kwenguva refu kwe nanosilver kunogona kusimudza kunetseka kwekuchengetedza nekuda kwekukwanisa kuunganidza uye kutama. Sirivheri yakawanda inogona kukuvadza zvakanyanya kuvanhu nemhuka, sezvo inogona kupinda mitochondria, embryos, chiropa, circulatory system, uye dzimwe nhengo dzemuviri kuburikidza nekufema. Zvidzidzo zvakaratidza kuti nanosilver zvimedu zvinoratidza huturu hwakasimba zvichienzaniswa nemamwe simbi nanoparticles sealuminium negoridhe. Nekuda kweizvozvo, European Union inoramba yakangwarira maererano nekushandiswa kwenanosilver antimicrobial materials.Mukupesana ne, graphene-based antimicrobial materials inoshandisa akawanda synergistic physical sterilization maitiro, akadai se "nano-mapanga." Vanogona kuparadza zvachose uye kudzivisa kukura kwebhakitiriyapasina chepfu yemakemikari. Izvi zvinhu zvinosanganisirwa zvisina mutsetse nezvinhu zvepolymer, kuitira kuti ive nechokwadihapana kubviswa kwezvinhu kana kutama. Kuchengetedzeka uye kugadzikana kwegraphene-yakavakirwa zvinhu zvinonyatso vimbiswa. Semuenzaniso, mukushandiswa kwechigadzirwa chinoshanda, graphene-based PE (polyethylene) ekuchengetedza chikafu mafirimu/mabhegi akawana certification yekuteerera-giredhi rekudya zvinoenderana neRegulation (EU) 2020/1245 muEuropean Union.
- Kugadzikana Kwenguva Yakareba: Graphene-yakavakirwa zvinhu zvinoratidza kugadzikana kwepamusoro uye kusimba, kupainogara kwenguva refu antimicrobial effect kweanopfuura makore gumi. Izvi zvinoita kuti zvimiro zvavo zveantimicrobial zvirambe zvichishanda kwenguva yakareba yekushandiswa, zvichiita kuti ive yakakodzera kushandiswa kwenguva refu mune zvigadzirwa zvehutsanana hwemuromo.
- Biocompatibility uye Kuchengeteka:Graphene, senge maviri-dimensional kabhoni-yakavakirwa zvinhu, inoratidza yakanakisa biocompatibility uye chengetedzo. Inopindirana nemhando dzakasiyana-siyana dze-resin-based materials uye inogona kushandiswa zvakachengeteka muzvigadzirwa zvekuchengetedza nemuromo pasina kukonzera chero migumisiro yakaipa pamakumbo emuromo kana hutano hwose.
- Broad-Spectrum Activity:Graphene-yakavakirwa zvinhu zvinoratidza yakakura-spectrum antimicrobial chiitiko,inokwanisa kunanga huwandu hwakawanda hwebhakitiriya, kusanganisira zvose Gram-positive uye Gram-negative strains. Varatidzaantibacterial mitengo ye99.9%kurwisa Escherichia coli, Staphylococcus aureus, uye Candida albicans. Izvi zvinoita kuti zvive zvakasiyana uye zvinoshanda mumamiriro akasiyana ehutano hwemuromo.
Iyo graphene antibacterial mechanism zviri sezvinotevera:
Iyo antibacterial nzira yegrapheneyakadzidzwa zvakanyanya nechikwata chenyika dzese chinoshanda. Kusanganisira vaongorori kubva kuChinese Academy yeSainzi, IBM Watson Research Center, uye Columbia University. Vakaita kufambira mberi kwakakosha mukudzidza mamorekuru maitiro ekudyidzana pakati pegraphene uye bacterial cell membranes. Mapepa achangoburwa nezvenyaya iyi akaburitswa mujenari "Nature Nanotechnology."
Zvinoenderana nekutsvagisa kwechikwata, graphene inokwanisa kukanganisa mabhakitiriya maseru membranes, zvichitungamira mukudonha kwezvinhu zvemukati uye kufa kwebhakitiriya. Kuwanikwa uku kunoratidza kuti graphene inogona kushanda se "antibiotic" isingamirire mumuviri. Chidzidzo ichi chinoburitsa pachena kuti graphene haingozvipinza mubhakitiriya cell membranes, zvichikonzera kucheka, asi zvakare inobvisa phospholipid mamorekuru zvakananga kubva kune membrane, nekudaro kukanganisa membrane chimiro uye kuuraya mabhakitiriya. Electron microscopy kuyedza kwakapa humbowo hwakananga hwezvakakura zvisina zvimiro mubhakitiriya cell membranes mushure mekubatana neoxidized graphene, ichitsigira kuverenga kwedzidziso. Ichi chiitiko che lipid molecule kudhirowa uye kukanganisa kwe membrane inopa inoveli molecular maitiro ekunzwisisa cytotoxicity uye antibacterial chiitiko chenanomaterials. Ichaita zvakare kufambisa kutsvagisa pamusoro peiyo biological mhedzisiro yegraphene nanomaterials uye mashandisiro avo mubiomedicine.
Iyo graphene antibacterial application muindasitiri yemazino:
Nekuda kwemabhenefiti ari pamusoro eiyo graphene composite zvinhu, graphene antibacterial mashandiro uye mashandisirwo akwezva kufarira kukuru kubva kune vanotsvaga uye nyanzvi mumaindasitiri ane hukama.
Graphene antibacterial toothbrush, yakaunzwa naMARBON boka, shandisa zvakagadzirirwa bristles akagadzirwa kubva kugraphene nanocomposite zvinhu. Saka inogona kunyatsodzivirira kukura uye kubereka kwebhakitiriya, nokudaro kuderedza ngozi yezvirwere zvemukanwa.
Mabristles akapfava asi akatsiga, achibvumira kucheneswa zvinyoro-nyoro kwemazino nemazino uku uchidzivirira enamel uye chingamu hutano. Iyo bhurashi remazino zvakare ine ergonomic mubato dhizaini inopa yakagadzika kubata uye nyore kushandisa.
Isu tinotenda zvakasimba kuti iyi antibacterial toothbrush ichapa yakasarudzika yemuromo yekuchengeta ruzivo. Inogona kunyatsobvisa mazino plaque uye chikafu chekudya. Pamusoro pezvo, inopa kuchengetedzwa kwenguva refu kweantibacterial, kuve nechokwadi chekuti muromo wako wemuromo unogara mutsva uye uine hutano.
Mhedziso:
Graphene antibacterial mazino bhurasho inomiririra kufambira mberi kwazvino mukushandiswa kwezvinhu zvegraphene mumunda weantibacterial. Nekugona kwavo kukuru, graphene antibacterial mabhurashi emazino akaiswa kuti achinje kutarisirwa kwemukanwa, achipa vanhu ruzivo rwakanaka uye rwakanyanya kugadzikana. Sezvo graphene zvinhu tsvakiridzo inofambira mberi, graphene antibacterial mazino mabhurasho achaita basa rinowedzera rakakosha mukusimudzira hutano hwemukanwa uye kugara zvakanaka.
Nguva yekutumira: May-02-2024