Kodi Malangizo a Filtered Pipette Amaletsadi Kuyipitsidwa Kwa Mtanda ndi Ma Aerosols?

Mu labotale, zisankho zovuta zimapangidwa nthawi zambiri kuti adziwe momwe angachitire zoyeserera zoyesa komanso kuyesa. Popita nthawi, maupangiri a pipette asinthidwa kuti agwirizane ndi ma lab padziko lonse lapansi ndipo amapereka zida kuti akatswiri ndi asayansi athe kuchita kafukufuku wofunikira. Izi ndizowona makamaka pamene COVID-19 ikupitilizabe kufalikira ku United States. Epidemiologists ndi virologists akugwira ntchito usana ndi usiku kuti apeze chithandizo cha kachilomboka. Malangizo a filter omwe amapangidwa ndi pulasitiki amagwiritsidwa ntchito pophunzira za kachilomboka ndipo magalasi omwe kale anali magalasi tsopano ndi owoneka bwino. Malangizo okwana 10 a pipette amagwiritsidwa ntchito popanga mayeso amodzi a COVID-19 pakadali pano ndipo maupangiri ambiri omwe amagwiritsidwa ntchito tsopano ali ndi fyuluta mkati mwawo yomwe imayenera kutsekereza ma 100% a ma aerosol ndikupewa kuipitsidwa kwamtanda mukamapereka zitsanzo. Koma kodi maupangiri okwera mtengo kwambiri komanso amtengo wapatali zachilengedwe amathandiziranji malabu m'dziko lonselo? Kodi ma laboti ayenera kusankha kutsitsa fyuluta?

 

Kutengera kuyesa kapena kuyesa komwe kulipo, malo opangira ma labotale ndi malo ofufuzira amasankha kugwiritsa ntchito maupangiri osasankhidwa kapena osasankhidwa a pipette. Ma lab ambiri amagwiritsa ntchito zosefera chifukwa amakhulupirira kuti zoseferazo zitha kuteteza ma aerosols onse kuti asadetsetse mtunduwo. Zosefera zimawonedwa ngati njira yotsika mtengo yothanirana ndi zoyipa zonse kuchokera pachitsanzo, koma mwatsoka sizili choncho. Zosefera za polyethylene pipette siziteteza kuipitsidwa, koma zimangochepetsa kufalikira kwa zonyansa.

 

Nkhani yaposachedwa ya Biotix inati, "[mawuwo] chotchinga ndi ena mwa mawu olakwika ena mwa malangizowa. Malangizo ena apamwamba okha ndi omwe amapereka chotchinga chenicheni. Zosefera zambiri zimangochepetsa madzi kulowa mu mbiya ya pipette. ” Kafukufuku wodziyimira pawokha adachitika poyang'ana njira zina zosefera ndi luso lake poyerekeza ndi maupangiri omwe sanasewere. Nkhani yomwe idasindikizidwa mu Journal of Applied Microbiology, London (1999) idasanthula momwe maupangiri amtundu wa polyethylene amagwirira ntchito ataikidwa kumapeto kwa chikwangwani cha pipette tip poyerekeza ndi nsonga zosasefedwa. Mwa kuyesedwa kwa 2620, 20% yazitsanzo idawonetsa kuipitsidwa kwa carryover pamphuno ya pipettor pomwe palibe fyuluta yomwe idagwiritsidwa ntchito, ndipo 14% ya zitsanzo zidasokonezedwa pomwe fyuluta ya polyethylene (PE) imagwiritsidwa ntchito (Chithunzi 2). Kafukufukuyu adapezanso kuti madzi anyukiliya kapena plasmid DNA ataponyedwa bomba popanda fyuluta, kuipitsidwa kwa mbiya ya pipettor kunachitika mkati mwa 100 pipettings. Izi zikuwonetsa kuti ngakhale maupangiri omwe adasefedwayo amachepetsa kuchuluka kwa zoyipitsa kuchokera pa nsonga imodzi kupita ku ina, zosefera sizimasiya kuipitsiratu.


Post nthawi: Aug-24-2020