Ka laboratoring, ho etsoa liqeto tse thata khafetsa ho fumana hore na ho ka etsoa liteko le liteko tsa bohlokoa hakae. Ha nako e ntse e ea, malebela a li-pipette a ikamahanya le maemo hore a lumellane le li-laboratory lefatšeng ka bophara 'me a fana ka lisebelisoa hore litsebi le bo-ramahlale ba be le bokhoni ba ho etsa lipatlisiso tsa bohlokoa. Sena ke 'nete haholo ha COVID-19 e ntse e tsoela pele ho hasana ho pholletsa le United States. Lingaka tsa Epidemiologists le virologists li sebetsa bosiu le motšehare ho tla ka kalafo ea vaerase. Malebela a hloekisitsoeng a pipette a entsoeng ka polasetiki a sebelisetsoa ho ithuta kokoana-hloko 'me tse kileng tsa e-ba ngata, li-pipette tsa khalase hona joale li boreleli ebile lia iketsetsa. Kakaretso ea malebela a 10 a lipeipi tsa polasetiki a sebelisoa ho etsa tlhahlobo e le 'ngoe ea COVID-19 hajoale mme boholo ba malebela a sebelisoang hona joale a na le sefahla ho tsona se lokelang ho thibela 100% ea li-aerosols le ho thibela tšilafalo ha ho etsoa sampole. Empa likeletso tsee tse turang haholo le tse turang tikoloho li hlile li ruisa li-laboratory molemo hakae naheng ka bophara? Na li-labs li lokela ho nka qeto ea ho lahla sefa?
Ho ipapisitse le liteko kapa tlhahlobo e teng, lilaboratori le litsi tsa lipatlisiso li tla khetha ho sebelisa malebela a pipette a sa tlhotloang kapa a sefiloeng. Li-lab tse ngata li sebelisa malebela a tlhotliloeng hobane li lumela hore li-filters li tla thibela li-aerosols tsohle ho silafatsa sampole. Li-filters li atisa ho nkoa e le mokhoa o bolokang chelete e ngata oa ho felisa ka ho feletseng mesaletsa ea litšila ho tloha sampuling, empa ka bomalimabe ha ho joalo. Li-filters tsa polyethylene pipette ha li thibele tšilafalo, empa ho e-na le hoo li liehisa ho ata ha litšila.
Sengoliloeng sa morao-rao sa Biotix se re, “[lentsoe] mokoallo ke lebitso le fosahetseng ho tse ling tsa malebela ana. Ke malebela a itseng feela a boemo bo holimo a fanang ka thibelo ea 'nete ea ho tiisa. Lisefe tse ngata li liehisa mokelikeli ho kena ka moqomong oa pipette. Lithuto tse ikemetseng li entsoe ho shebiloe mekhoa e meng ea li-filters tsa malebela le katleho ea tsona ha li bapisoa le malebela a sa sefeng. Sengoliloeng se phatlalalitsoeng ho Journal of Applied Microbiology, London (1999) se ithutile ka katleho ea malebela a filthara ea polyethylene ha a kenngoa pheletsong ea ho buloa ha leqhubu la pipette ha ho bapisoa le malebela a sa tlhotloang. Ho tsoa litekong tse 2620, 20% ea lisampole e bonts'itse tšilafalo ea nko ea pipettor ha ho ne ho sa sebelisoe sefe, 'me 14% ea lisampole e ne e silafetse ha ho ne ho sebelisoa filthara ea polyethylene (PE) (Setšoantšo sa 2). Phuputso e boetse e fumane hore ha mokelikeli oa mahlaseli a kotsi kapa DNA ea plasmid e kenngoa ka pipette ho se na sefe, tšilafalo ea pipettor barrel e etsahetse ka har'a li-pipettings tse 100. Sena se bontša hore le hoja malebela a hloekisitsoeng a fokotsa palo ea tšilafalo ho tloha ntlheng e 'ngoe ea pipette ho ea ho e' ngoe, li-filters ha li emise tšilafalo ka ho feletseng.
Nako ea poso: Aug-24-2020