Kodi Maupangiri Osefedwa a Pipette Amatetezadi Kuipitsidwa ndi Ma Aerosols?

Mu labotale, zisankho zolimba zimapangidwa nthawi zonse kuti zitsimikizire momwe mungayesere bwino kwambiri kuyesa ndi kuyesa.Popita nthawi, malangizo a pipette asintha kuti agwirizane ndi ma lab padziko lonse lapansi ndipo amapereka zida kuti akatswiri ndi asayansi athe kuchita kafukufuku wofunikira.Izi ndizoona makamaka pamene COVID-19 ikupitiliza kufalikira ku United States.Epidemiologists ndi virologists akugwira ntchito usana ndi usiku kuti apeze chithandizo cha kachilomboka.Malangizo a pipette osefedwa opangidwa ndi mapulasitiki amagwiritsidwa ntchito pophunzira kachilomboka ndipo zomwe kale zinali zokulirapo, ma pipette agalasi tsopano ndi osalala komanso odzichitira okha.Maupangiri 10 a ma pipette apulasitiki amagwiritsidwa ntchito poyesa mayeso amodzi a COVID-19 pakadali pano ndipo maupangiri ambiri omwe amagwiritsidwa ntchito pano ali ndi zosefera zomwe zimayenera kutsekereza 100% ya ma aerosols ndikuletsa kuipitsidwa pamiyeso.Koma kodi malangizowa ndi okwera mtengo kwambiri komanso owononga chilengedwe omwe amapindulira ma labu m'dziko lonselo?Kodi ma laboratory ayenera kusankha kusiya zosefera?

Kutengera kuyesa kapena kuyesa komwe kulipo, ma laboratories ndi malo ofufuzira adzasankha kugwiritsa ntchito nsonga za pipette zosasefedwa kapena zosefedwa.Ma labu ambiri amagwiritsa ntchito malangizo osefedwa chifukwa amakhulupirira kuti zosefera zimalepheretsa ma aerosols onse kuti asayipitse chitsanzocho.Zosefera nthawi zambiri zimawonedwa ngati njira yotsika mtengo yochotseratu zonyansa kuchokera pa zitsanzo, koma mwatsoka izi sizili choncho.Zosefera za nsonga za polyethylene pipette sizimalepheretsa kuipitsidwa, koma m'malo mwake zimangochepetsa kufalikira kwa zonyansa.

Nkhani yaposachedwa ya Biotix ikuti, "[mawu] chotchinga ndi mawu olakwika pang'ono pa ena mwa malangizowa.Malangizo ena apamwamba okha ndi omwe amapereka chotchinga chosindikizira chenicheni.Zosefera zambiri zimangochepetsa madzi kulowa mu mbiya ya pipette.Maphunziro odziyimira pawokha achitidwa poyang'ana njira zina zosefera nsonga ndi mphamvu yake poyerekeza ndi malangizo osasefera.Nkhani yomwe idasindikizidwa mu Journal of Applied Microbiology, London (1999) idaphunzira momwe nsonga zosefera za polyethylene zidayikidwa kumapeto kwa nsonga ya nsonga ya pipette poyerekeza ndi nsonga zosasefedwa.Mwa mayeso 2620, 20% ya zitsanzo zinasonyeza kuipitsidwa kwa mphuno ya pipettor pamene palibe fyuluta yomwe inagwiritsidwa ntchito, ndipo 14% ya zitsanzo zinali zoipitsidwa pamene nsonga ya sefa ya polyethylene (PE) idagwiritsidwa ntchito (Chithunzi 2).Kafukufukuyu adapezanso kuti madzi amadzimadzi kapena DNA ya plasmid itayikidwa paipi popanda fyuluta, kuipitsidwa kwa mbiya ya pipettor kunachitika mkati mwa mapaipi 100.Izi zikuwonetsa kuti ngakhale nsonga zosefedwa zimachepetsa kuchuluka kwa kuipitsidwa kuchokera ku nsonga ya pipette kupita ku ina, zosefera sizimayimitsa kuipitsidwa kwathunthu.