iphepha_ibhena

iindaba

Abstract

 

Uphononongo lwethu lwangaphambili lubonise ukuba ukucocwa kwangaphambili kweefilitha ezineoyile yomthi weti esebenzayo (TTO) kuphucula ukuqokelelwa komgangatho wokufudumeza okuqhelekileyo, ukungena komoya, kunye nezihluzi zomoya (HVAC), kwaye zibonelela ngeendleko ezisebenzayo kunye nokukhawuleza kusebenze amasuntswana ebhaktheriya kunye nomngundo. umphezulu wokucoca. Eyona njongo yolu phononongo ibikukuphanda umsebenzi we-antiviral yezibulali-ntsholongwane ezimbini zendalo, okt, i-TTO kunye ne-oyile ye-eucalyptus (EUO), ngokuchasene nentsholongwane yomkhuhlane efakwe kumphezulu wokucoca. Kwafunyaniswa ukuba zombini ii-oyile ezivavanyiweyo zineepropathi ezomeleleyo ze-antiviral xa zisetyenziswa njengezinto zokugquma ifayibha, ezikwaziyo ukuvala ii-microorganisms ezibanjiweyo ngaphakathi kwe-5-10 min yoqhagamshelwano kumphezulu wefiber. Umsebenzi we-antiviral we-TTO uphinde wacelwa umngeni ngempumelelo kwifom ye-aerosol ngokuxuba amasuntswana entsholongwane emoyeni kunye namathontsi e-oyile kwigumbi elijikelezayo le-aerosol. Iziphumo zikhangeleka zithembisa kakhulu kuphuhliso olongezelelweyo lweenkqubo zokuvala intsholongwane kunye nobuchwepheshe bokusetyenziswa komgangatho womoya.

 

Intshayelelo

Ngenxa yempembelelo enkulu kwimpilo yabantu neyezilwanyana, ii-aerosol zebhayoloji ziba ngumxholo obaluleke kakhulu wophando kwihlabathi liphela. Ukususwa kwamasuntswana e-microbiological kumoya we-ambient kunye nokungasebenzi kwawo okulandelayo kuya kuba yenye yeendlela ezifanelekileyo zokunciphisa umngcipheko wokuvezwa ngokuthe ngqo kumasuntswana omoya okanye amasuntswana aphinde afakwe i-aerosolized ukusuka kwindawo eqokelelweyo. Ekubeni i-filtration ihlala iyona ndlela isebenzayo yokususa i-particle emoyeni, isetyenziselwa ukuhlanjululwa komoya kwiincinci ezincinci ze-microbial ngokwayo, okanye ngokudibanisa neenkqubo ezongezelelweyo kunye neemodyuli zobuchwepheshe eziphucula inkqubo yokusebenza kakuhle kunye nokuguqulwa okuncinci kwe-hydrodynamics yokucoca. Iinkqubo ezinjalo zokuphucula ukuhluza ziquka ukusetyenziswa kwee-ion ze-unipolar (u-Huang et al. 2008), ukutshaja kwe-electrostatic kumajelo okucoca (i-Raynor kunye ne-Chae 2004), ukugquma kweefibers ezinolwelo (i-Agranovski ne-Braddock 1998; i-Boskovic et al. 2007), kunye nabanye. .

 

Ukuqwalasela inyani yokuba i-aerosols eqokelelweyo ye-microbial ihlala kwindawo yokucoca, enye into enokwenzeka yokutshatyalaliswa kwabo okulandelayo kunye ne-aerosolization yokubuyela kwi-carrier yegesi ayinakungahoywa. Amasuntswana aphinde afakwe iaerosolized angasaphila abangela umngcipheko omkhulu kubahlali kunye nokusingqongileyo. Lo mbandela unokuqwalaselwa ngokongeza ii-agent zokubulala iintsholongwane kumthuthi wegesi okanye ukwenza iinkqubo zokungasebenze ngokuthe ngqo kumphezulu wokucoca, okwenza amasuntswana e-microbial angasebenzi kwiimeko zokuphinda kufakwe i-aerosolization.

 

Kukho iindlela ezithile zobuchwepheshe ezikhoyo zokubulala iintsholongwane. Ziquka ukubola kwe-photocatalytic ye-microbes kwi-titanium oxide surface irradiated yi-ultraviolet (UV; Vohra et al. 2006; Grinshpun et al. 2007), i-infrared (IR) i-radiation-based based thermal decomposition (Damit et al. 2011), isebenzisa iikhemikhali ezitofwe ngokuthe ngqo ngokutofa kwi-air carrier okanye isetyenziswe kwindawo yokucoca (Pyankov et al. 2008; Huang et al. 2010), kunye nabanye. Phakathi kweendidi ezahlukeneyo zokubulala iintsholongwane, ezinye ii-oyile zendalo zikhangeleka zithembisa ngenxa yobume obuphantsi okanye obungenatyhefu, ngakumbi kwimo exutyiweyo (Carson et al. 2006). Ngexesha leshumi leminyaka edlulileyo, iindidi zeoyile ezibalulekileyo ezivela kwizityalo ziye zahlolwa ukuvavanya umsebenzi wazo we-antimicrobial (Reichling et al. 2009).

 

Ukusetyenziswa okunokubakho kweoyile, njengeoyile yeti yomthi (TTO) kunye neoyile ye-eucalyptus (EUO), njengezibulali ntsholongwane ziboniswe ngokucacileyo kwizifundo zamva nje ze-in vitro malunga ne-antibacterial (Wilkinson kunye neCavanagh 2005; Carson et al. 2006; Salari et al. 2006) ; Hayley and Palombo 2009), antifungal (Hammer et al. 2000; Oliva et al. 2003), kunye nemisebenzi ye-antiviral (Schnitzler et al. 2001; Cermelli et al. 2008; Garozzo et al. 2011). Ukongeza, kwaboniswa ukuba ii-oyile eziyimfuneko ziyimixube ene-heterogeneous, kunye nebhetshi enkulu ukuya kwi-batch yokwahluka kwamalungu, ngokuxhomekeke kwiimeko zokukhula kumasimi (Kawakami et al. 1990; Moudachirou et al. 1999). Umsebenzi we-antimicrobial we-TTO ubangelwa ikakhulu kwi-terpinen-4-ol (35-45%) kunye ne-1,8-cineole (1-6%); nangona kunjalo, amanye amacandelo afana ne-a-terpineol, i-terpinolene, kunye ne-a- kunye ne-c-terpinene nazo zihlala zikhona kwaye zinokuba negalelo kwi-microbial disinfection (May et al. 2000). I-EUO evela kwiintlobo ezahlukeneyo ze-Eucalyptus iqulethe i-1,8-cineole, i-pinene, kunye ne-terpineol njengeekhompawundi eziphambili eziqhelekileyo (Jemâa et al. 2012). I-EUO ekumgangatho wamachiza iqhele ukutyetyiswa ukuya kuthi ga kwi-70% yoxinaniso lwe-1,8-cineole.

 

Kutshanje, siye sacebisa iteknoloji esekelwe ukutyabeka izihluzi fibrous yi TTO, kwaye ingxelo iziphumo zophononongo nokwenzeka kwi disinfection iintsholongwane (Pyankov et al. 2008) kunye spores umngundo (Huang et al. 2010). Kwezi zifundo, i-TTO yasetyenziswa njengazo zombini, isihluzi esiphucula imidiya kunye nesibulali-ntsholongwane kwii-aerosols zebhaktiriya kunye nomngundo ezithinjwe kumphezulu wokucoca. Ukuthathela ingqalelo umdla okhoyo omandla kuphando olunxulumene nomkhuhlane, uphononongo lwangoku luqhubekeko olunengqiqo lophando lwethu lwangaphambili sigxile kuvavanyo lomsebenzi wokuthomalalisa ii-oyile ezibalulekileyo (i-TTO kunye ne-EUO) ekungavulweni kwentsholongwane yomkhuhlane womoya.

 

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Ixesha lokuposa: Jan-23-2021