Ofufuza ku North Carolina State University apanga njira yothanirana ndi kugwedezeka kwa zitsulo zamadzimadzi pogwiritsa ntchito ma voltages otsika kwambiri, kutsegulira chitseko cha m'badwo watsopano wa mabwalo amagetsi osinthika, tinyanga ndi matekinoloje ena.Njirayi imadalira kuti oksidi "khungu" lachitsulo, lomwe limatha kuikidwa kapena kuchotsedwa, limakhala ngati surfactant, limachepetsa kuthamanga kwapakati pakati pa zitsulo ndi madzi ozungulira.googletag.cmd.push(function() {googletag.display('div-gpt-ad-1449240174198-2′);});
Ofufuzawo adagwiritsa ntchito aloyi yachitsulo yamadzimadzi ya gallium ndi indium.Mu gawo lapansi, aloyi wopanda kanthu amakhala ndi zovuta kwambiri pamtunda, pafupifupi 500 millinewtons (mN) / mita, zomwe zimapangitsa chitsulo kupanga zigamba zozungulira.
"Koma tidapeza kuti kugwiritsa ntchito ndalama zochepa zabwino - zosakwana 1 volt - kunayambitsa electrochemical reaction yomwe imapanga oxide wosanjikiza pamwamba pa chitsulo, yomwe idachepetsa kwambiri kuthamanga kwapansi kuchokera ku 500 mN / m mpaka pafupifupi 2 mN / m.”adatero Michael Dickey, Ph.D., pulofesa wothandizira wa engineering ya mankhwala ndi biomolecular ku North Carolina State ndi wolemba wamkulu wa pepala lofotokoza za ntchitoyi.Kusintha kumeneku kumapangitsa kuti chitsulo chamadzimadzi chiwonjezeke ngati pancake pansi pa mphamvu yokoka.
Ofufuzawo adawonetsanso kuti kusintha kwa kugwedezeka kwapansi kumasinthidwa.Ngati ochita kafukufuku asintha polarity ya mtengowo kuchokera ku zabwino kupita ku zoipa, oxide imachotsedwa ndipo kupsinjika kwapamwamba kumabwereranso.Kuthamanga kwapamwamba kungathe kukonzedwa pakati pa zovuta ziwirizi mwa kusintha kupanikizika muzochepa zazing'ono.Mukhoza kuona kanema wa njira pansipa.
"Kusintha komwe kumachitika chifukwa cha zovuta zapamtunda ndi chimodzi mwa zazikulu kwambiri zomwe zidalembedwapo, zomwe ndi zodabwitsa chifukwa zimatha kuyendetsedwa mochepera kuposa volt," adatero Dickey."Titha kugwiritsa ntchito njira imeneyi kuwongolera kayendedwe ka zitsulo zamadzimadzi, zomwe zimatilola kusintha mawonekedwe a tinyanga ndikupanga kapena kuswa mabwalo.Itha kugwiritsidwanso ntchito mumayendedwe a microfluidic, MEMS, kapena zida zamafoto ndi zowonera.Zida zambiri zimapanga ma okosidi apamtunda, kotero kuti ntchitoyi ipitilira kupitilira zitsulo zamadzimadzi zomwe amaphunzira pano. ”
Labu ya Dickey idawonetsa kale chitsulo chamadzimadzi "3D kusindikiza" njira yomwe imagwiritsa ntchito chosanjikiza cha oxide chomwe chimapangidwa mumlengalenga kuti chitsulo chamadzimadzi chikhalebe ndi mawonekedwe ake - ofanana ndi zomwe wosanjikiza wa oxide umachita ndi aloyi mu njira ya alkaline..
"Tikuganiza kuti ma oxide amachita mosiyana m'malo oyambira kusiyana ndi mpweya wozungulira," adatero Dickey.
Zowonjezera: Nkhani yakuti "Zochita zazikulu komanso zosinthika zazitsulo zamadzimadzi kudzera mu oxidation ya pamwamba" idzasindikizidwa pa intaneti pa Seputembara 15 mu Proceedings of the National Academy of Sciences:
Ngati mukukumana ndi vuto, zolakwika, kapena mukufuna kutumiza pempho kuti musinthe zomwe zili patsambali, chonde gwiritsani ntchito fomuyi.Pamafunso ambiri, chonde gwiritsani ntchito fomu yathu yolumikizirana.Kuti mumve zambiri, chonde gwiritsani ntchito gawo lomwe lili pansipa (zolimbikitsa chonde).
Ndemanga zanu ndi zofunika kwambiri kwa ife.Komabe, chifukwa cha kuchuluka kwa mauthenga, sitingatsimikizire mayankho amunthu aliyense payekha.
Imelo yanu imagwiritsidwa ntchito podziwitsa omwe akulandirani omwe adatumiza imeloyo.Adilesi yanu kapena adilesi ya wolandila sizigwiritsidwa ntchito pazifukwa zina zilizonse.Zomwe mudalemba ziziwoneka mu imelo yanu ndipo sizisungidwa ndi Phys.org mwanjira iliyonse.
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Webusaitiyi imagwiritsa ntchito makeke kuti azitha kuyenda bwino, kusanthula momwe mumagwiritsira ntchito ntchito zathu, kusonkhanitsa deta kuti musinthe makonda anu, komanso kupereka zinthu kuchokera kwa anthu ena.Pogwiritsa ntchito tsamba lathu la webusayiti, mumavomereza kuti mwawerenga ndikumvetsetsa Mfundo Zazinsinsi ndi Migwirizano yathu.