Ama-Micromotor ukuhlanza i-carbon dioxide olwandle lwethu

Onjiniyela be-Nanoengineers abavela e-University of California e-San Diego benze injini encane eklanyelwe ukususa i-carbon dioxide olwandle. Ngokukhula kwe-asidi kwezilwandle zomhlaba , ukususa i-carbon dioxide olwandle ngethemba ukuthi kuzonciphisa noma kubuyisele emuva imiphumela yokushintsha kwesimo sezulu ngesikhathi. Amazinga aphezulu e-carbon dioxide emanzini aphumela ekwehleni kwempilo yasemanzini kanye nekhwalithi yamanzi emhlabeni wonke.  

Lawa ma-“micromotor” amasha azoba semaphethelweni aholayo ekunciphiseni isikhutha. Umbhali wokuqala wezifundo, Virendra V. Singh, uthi, “Sijabulile ngethuba lokusebenzisa lawa ma-micromotor ukulwa ne-acidification yolwandle kanye nokufudumala komhlaba.” 

Ama-micromotor e-University of California asebenzisa i-enzyme ebizwa ngokuthi i-carbonic anhydrase ku-polymer yangaphandle ukuze ahambe emanzini. Isebenzisa i-hydrogen peroxide njengohlobo lukaphethiloli ukuze inike amandla i-enzyme. I-hydrogen peroxide isabela nendawo engaphakathi yeplatinamu ukuze ikhiqize amabhamuza omoya-mpilo. Lawa mabhamuza wona aqhubezela i-carbonic anhydrase futhi anyakazise injini.  

Ngoba indawo ye-platinum yenza i-micromotor ibize, abacwaningi bahlela indlela yokwenza izinjini zidonswe ngamanzi. “Uma ama-micromotor ekwazi ukusebenzisa imvelo njengophethiloli, azoba ngcono kakhulu, angavumeli imvelo futhi angabizi kakhulu,” kusho. Kevin Kaufmann, omunye umbhali wezifundo.  

I-carbonic anhydrase enzyme nayo isebenza njengendlela yokunciphisa i-carbon dioxide emanzini. Yenza kanjalo ngokusheshisa ukusabela phakathi kwe-carbon dioxide namanzi, okushintsha i-carbon dioxide ibe i-calcium carbonate. I-calcium carbonate entweni eyenza inqwaba yamagobolondo asolwandle kanye ne-limestone futhi ayihambisani nemvelo.  

I-micromotor ngayinye ingamamitha angu-6 ubude futhi iyazimela ngokuphelele. Uma sezifakwe emanzini, zihamba futhi “zihlanze” noma iyiphi i-carbon dioxide ezihlangana nazo. Ngenxa yokuhamba okusheshayo nokuqhubekayo kwamamotho, asebenza kahle kakhulu. Ekuhlolweni kocwaningo, ama-micromotor akwazi ukuhamba ngokushesha okungama-micrometer angu-100 ngomzuzwana, futhi akwazi ukususa Amaphesenti angu-88 e-carbon dioxide esitsheni samanzi olwandle emizuzwini emi-5.  

Uma lezi zinjini ezincane sezitshaliwe olwandle, zizoqhubeka nokususa noma iyiphi i-carbon dioxide emanzini futhi zilwe nemithelela yokushintsha kwesimo sezulu ezilwandle zethu. Nganoma iyiphi inhlanhla, bangakwazi ukubuyisela impilo yezilwandle zethu kanye nempilo yasemanzini ehlala kuzo.