ibhena_yephepha

iindaba

Isishwankathelo

 

Izifundo zethu zangaphambili zibonise ukuba ukugquma iifayibha zesihluzo ngeoyile yeti yomthi esebenzayo ngokwebhayoloji (TTO) kuphucula ukusebenza kakuhle kokuqokelelwa kwezinto zokucoca ezifudumezayo, umoya, kunye ne-air conditioning (HVAC), kwaye kubonelela ngokuthintela okungabizi kakhulu nokukhawulezileyo kwee-bacterial kunye ne-fungus ezibanjiweyo kumphezulu wesihluzo. Injongo ephambili yolu phononongo yayikukuphanda umsebenzi we-antiviral we-disinfectants ezimbini zendalo, oko kukuthi, i-TTO kunye neoyile ye-eucalyptus (EUO), ngokuchasene ne-influenza virus ebanjiwe kumphezulu wesihluzo. Kufunyaniswe ukuba zombini iioyile ezivavanyiweyo zineempawu ezinamandla ze-antiviral xa zisetyenziswa njengezinto zokugquma ifayibha, ezikwaziyo ukunqanda iintsholongwane ezibanjiweyo kwimizuzu emi-5-10 yokudibana kumphezulu wefayibha. Umsebenzi we-antiviral we-TTO nawo wachatshazelwa ngempumelelo kwimo ye-aerosol ngokuxuba ii-viral particles ezisebenza emoyeni kunye namaconsi eoyile kwigumbi le-aerosol elijikelezayo. Iziphumo zibonakala zithembisa kakhulu kuphuhliso oluqhubekayo lweenkqubo zokuthintela intsholongwane kunye netekhnoloji yezicelo zomgangatho womoya.

 

Intshayelelo

Ngenxa yempembelelo enkulu kwimpilo yabantu nezilwanyana, ii-aerosols zebhayoloji ziba yinto ebaluleke kakhulu yophando kwihlabathi liphela. Ukususwa kwee-microbiological particles emoyeni ongqongileyo ngokungasebenzi kwazo okulandelayo kuya kuba yenye yezona ndlela zisebenzayo zokunciphisa umngcipheko wokuvezwa ngokuthe ngqo kwii-particles ezisuka emoyeni okanye ii-particles eziphinda zifakwe kwi-aerosol kwiindawo eziqokelelanayo. Ekubeni ukuhluza kuseyeyona ndlela isebenzayo yokususa ii-particles ezisuka emoyeni, kudla ngokusetyenziselwa ukucoca umoya kwii-particles ezisuka kwi-microbial particles ngokwazo, okanye ngokudityaniswa neenkqubo ezongezelelweyo kunye neemodyuli zobuchwepheshe eziphucula ukusebenza kakuhle kwenkqubo ngokutshintsha okuncinci kwe-hydrodynamics yesihluzo. Ezi nkqubo zokuphucula ukuhluza ziquka ukusetyenziswa kwee-ions ze-unipolar (Huang et al. 2008), ukutshaja nge-electrostatic ye-filter media (Raynor and Chae 2004), ukugquma iifayibha ngolwelo (Agranovski and Braddock 1998; Boskovic et al. 2007), kunye nabanye.

 

Xa kujongwa into yokuba ii-aerosols ze-microbial eziqokelelweyo zihlala kumphezulu wesihluzo, amathuba okuba ziphinde zisuswe kwaye ziphinde zifakwe kwi-gas carrier azinakutyeshelwa. Ii-particles ezifakwe kwi-aerosol zisenokuba zisaphila nto leyo ebangela iingozi ezinkulu kubemi nakwindalo esingqongileyo. Le ngxaki ingasonjululwa ngokongeza ii-agents zokubulala iintsholongwane kwi-gas carrier okanye ukwenza ezinye iinkqubo zokuzicima ngokuthe ngqo kumphezulu wesihluzo, nto leyo eyenza ii-particles ze-microbial zingasebenzi kwiimeko apho kunokwenzeka ukuba ziphinde zifakwe kwi-aerosol.

 

Kukho iindlela zobuchwepheshe ezikhoyo zokubulala iintsholongwane kwiintsholongwane. Ziquka ukubola kweentsholongwane nge-photocatalytic kumphezulu we-titanium oxide okhanyiselwe yi-ultraviolet (UV; Vohra et al. 2006; Grinshpun et al. 2007), ukubola kwe-thermal okusekwe kwi-infrared (IR) radiation (Damit et al. 2011), kusetyenziswa iikhemikhali ezifakwe ngqo kwi-air carrier okanye ezifakwe kumphezulu wesihluzo (Pyankov et al. 2008; Huang et al. 2010), kunye nezinye. Phakathi kweentlobo ngeentlobo zezibulali-ntsholongwane, ezinye ii-oyile zendalo zibonakala zithembisa ngenxa yokuba azinatyhefu kakhulu okanye azinatyhefu, ingakumbi xa zixutyiwe (Carson et al. 2006). Kwiminyaka elishumi edlulileyo, iintlobo ngeentlobo zee-oyile ezibalulekileyo ezivela kwizityalo ziye zahlolwa ukuze kuhlolwe umsebenzi wazo wokulwa neentsholongwane (Reichling et al. 2009).

 

Ukusetyenziswa okunokwenzeka kweeoyile, ezifana neoyile yomthi weti (TTO) kunye neoyile ye-eucalyptus (EUO), njengezibulali-ntsholongwane kuboniswe ngokucacileyo kwizifundo zamva nje ze-in vitro malunga neentsholongwane (Wilkinson kunye noCavanagh 2005; Carson et al. 2006; Salari et al. 2006; Hayley kunye noPalombo 2009), i-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, kuboniswe ukuba iioyile ezibalulekileyo ziyimixube eyahlukeneyo, kunye notshintsho olukhulu lwebatch ukuya kwibatch yezinto, kuxhomekeke kwiimeko zokukhula emasimini (Kawakami et al. 1990; Moudachirou et al. 1999). Umsebenzi we-TTO wokulwa neentsholongwane ubangelwa ikakhulu yi-terpinen-4-ol (35–45%) kunye ne-1,8-cineole (1–6%); nangona kunjalo, ezinye izinto ezifana ne-a-terpineol, i-terpinolene, kunye ne-a- kunye ne-c-terpinene nazo zihlala zikhona kwaye zinokuba negalelo ekubulaleni iintsholongwane kwiintsholongwane (uMeyi et al. 2000). I-EUO evela kwiintlobo ezahlukeneyo ze-Eucalyptus iqulethe i-1,8-cineole, i-a-pinene, kunye ne-a-terpineol njengeekhompawundi eziphambili eziqhelekileyo (uJemâa et al. 2012). I-EUO ekumgangatho weyeza idla ngokutyetyiswa ukuya kuthi ga kwi-70% yoxinzelelo lwe-1,8-cineole.

 

Kutshanje, sicebise iteknoloji esekelwe kwiifilitha zefayibha ezigqunywe yi-TTO, saza saxela iziphumo zophando lokwenzeka kokubulala iintsholongwane kwiibhaktheriya (Pyankov et al. 2008) kunye nee-spores zefungal (Huang et al. 2010). Kwezi zifundo, i-TTO yasetyenziswa njengesixhobo sokuphucula ukusebenza kakuhle kwesihluzo kunye nesibulali-ntsholongwane kwii-aerosols zebhaktheriya kunye nefungal ezibanjwe kumphezulu wesihluzo. Xa sijonga umdla onamandla wangoku kuphando olunxulumene nomkhuhlane, olu phononongo luyaqhubeka ngokwengqiqo nophando lwethu lwangaphambili sigxile kuvavanyo lomsebenzi wokulwa neentsholongwane kwiioyile ezibalulekileyo (TTO kunye ne-EUO) ekuthinteleni intsholongwane ye-influenza emoyeni.

 

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Ixesha lokuposa: Jan-23-2021