Zikomo polembetsa ku Physical World Ngati mukufuna kusintha zambiri nthawi iliyonse, chonde pitani ku akaunti yanga
Uchi ndi zakumwa zina zowoneka bwino kwambiri zimayenda mwachangu kuposa madzi okhala ndi ma capillaries ophimbidwa mwapadera.Zodabwitsa zomwe adapeza zidapangidwa ndi Maja Vuckovac ndi anzawo ku Yunivesite ya Aalto ku Finland, omwe adawonetsanso kuti zotsatira zotsutsana ndi izi zimachokera ku kupondereza kwamkati mkati mwa madontho owoneka bwino kwambiri.
Munda wa microfluidics umaphatikizapo kulamulira kutuluka kwa zakumwa kudzera m'madera otsekedwa mwamphamvu a capillaries-kawirikawiri popanga zipangizo zogwiritsira ntchito zachipatala.Madzimadzi otsika kwambiri a viscosity ndi abwino kwa microfluidics chifukwa amayenda mofulumira komanso mopanda mphamvu.Madzimadzi ochulukirapo a viscous angagwiritsidwe ntchito poyendetsa pazitseko zapamwamba, koma izi zimawonjezera kupsinjika kwa makina muzowonongeka kwa capilla - zomwe zimapangitsa kuti capilla ikhale yolephera.
Mwinanso, kuthamanga kumatha kufulumizitsidwa pogwiritsa ntchito zokutira za superhydrophobic zomwe zimakhala ndi micro- ndi nanostructures zomwe zimatchera ma cushions a mpweya.Ma cushions awa amachepetsa kwambiri malo okhudzana ndi madzi ndi pamwamba, zomwe zimachepetsanso kukangana - kuwonjezereka kwa kutuluka kwa 65%.
Gulu la Vuckovac linayesa chiphunzitsochi poyang'ana madontho a ma viscosities osiyanasiyana monga mphamvu yokoka inawakoka kuchokera ku ma capillaries ofukula okhala ndi zokutira zamkati zamkati.
Ngakhale kuti madontho amawonetsa mgwirizano wosiyana pakati pa viscosity ndi kuthamanga kwa machubu otseguka, pamene mapeto amodzi kapena onse awiri adasindikizidwa, malamulowo adasinthidwa.
Kuti avumbulutse fizikiki kumbuyo kwa izi, gulu la Vuckovac linayambitsa tizilombo totsatira m'madontho.Kuyenda kwa tinthu tating'onoting'ono pakapita nthawi kunavumbulutsa kuthamanga kwamkati mkati mwa dontho lochepa la viscous. Izi zimapangitsa kuti madzi alowemo muzitsulo za micro- ndi nano-scale mu zokutira.Izi zimachepetsa makulidwe a khushoni ya mpweya, kulepheretsa mpweya wodutsa, kulepheretsa mpweya wodutsa. glycerin ili ndi pafupifupi palibe kutuluka kwamkati mkati, kulepheretsa kulowa kwake mu zokutira.Izi zimabweretsa mpweya wochuluka kwambiri, zomwe zimapangitsa kuti mpweya pansi pa dontho usunthike kumbali imodzi.
Pogwiritsa ntchito zomwe akuwona, gululo linapanga chitsanzo chosinthidwa cha hydrodynamic chomwe chimalosera bwino momwe madontho amadumphira mu capillaries ndi zokutira zosiyana za superhydrophobic.
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