umthombo:Phys.org

Izinto ezinqabileyo zomhlaba ezisuka kwintsimbi ekrwada zibalulekile kubomi bale mihla kodwa ukuzicokisa emva kokuba kusembiwe kubiza imali eninzi, kuyonakalisa indalo esingqongileyo kwaye ubukhulu becala kwenzeka kumazwe aphesheya.

Uphononongo olutsha luchaza ubungqina bomgaqo wobunjineli bebhaktiriya, iGluconobacter oxydans, ethatha inyathelo elikhulu lokuqala ekuhlangabezaneni nesidingo sezinto ezinqabileyo zomhlaba ngendlela ehambelana neendleko kunye nokusebenza kakuhle kwendlela yokutsalwa kwe-thermochemical kunye neendlela zokuyicokisa kwaye icoceke ngokwaneleyo ukuhlangabezana nemigangatho yokusingqongileyo yase-US.

"Sizama ukuza nendlela ehambelana nokusingqongileyo, ubushushu obuphantsi, indlela yoxinzelelo oluphantsi lokufumana izinto ezinqabileyo zomhlaba eziphuma etyeni," utshilo uBuz Barstow, umbhali ophezulu wephepha kunye nonjingalwazi oncedisayo wobunjineli bebhayoloji kunye nokusingqongileyo. IYunivesithi yaseCornell.

Izinto-eziyi-15 kwi-table periodic-ziyimfuneko kuyo yonke into esuka kwiikhomputha, iiselfowuni, izikrini, ii-microphone, ii-wind turbines, izithuthi zombane kunye nee-conductors ukuya kwi-radars, i-sonars, izibane ze-LED kunye neebhetri ezinokutsha.

Ngelixa i-US yakha yacoca izinto zayo ezinqabileyo zomhlaba, loo mveliso yayeka ngaphezu kwamashumi amahlanu eminyaka eyadlulayo. Ngoku, ukucocwa kwezi zinto kwenzeka phantse ngokupheleleyo kwamanye amazwe, ngakumbi iTshayina.

"Uninzi lwemveliso enqabileyo yomhlaba kunye nokumba kusezandleni zamazwe angaphandle," utshilo umbhali-mbhali u-Esteban Gazel, unjingalwazi onxulumene nomhlaba kunye nesayensi yomoya eCornell. "Ke kukhuseleko lwelizwe lethu kunye nendlela yokuphila, kufuneka sibuyele kwindlela yokulawula obo butyebi."

Ukuhlangabezana neemfuno zonyaka zase-US zezinto ezinqabileyo zomhlaba, malunga ne-71.5 yezigidi zeetoni (~78.8 yezigidi zeetoni) zentsimbi ekrwada ekrwada kuya kufuneka ukuba kutsalwe i-10,000 yeekhilogram (~22,000 pounds) yezinto.

Iindlela zangoku zixhomekeke ekunyibilikeni kwelitye ngeasidi yesulfuric eshushu, ilandelwa kukusetyenziswa kwezinyibilikisi zendalo ukwahlula izinto ezifanayo kakhulu enye kwenye kwisisombululo.

“Sifuna ukufumana indlela yokwenza ibug eyenza loo msebenzi ube ngcono,” utshilo uBarstow.

I-G. oxydans yaziwa ngokwenza iasidi ebizwa ngokuba yibiolixiviant enyibilikisa ilitye; ibhaktheriya isebenzisa iasidi ukutsala iphosphates kwizinto ezinqabileyo zomhlaba. Abaphandi baye baqala ukukhohlisa i-G. oxydans 'genenes' ukuze ikhuphe izinto ngokufanelekileyo.

Ukwenza njalo, abaphandi basebenzise iteknoloji uBarstow wanceda ukuphuhlisa, ebizwa ngokuba yi-Knockout Sudoku, eyabavumela ukuba bakhubaze i-2,733 genome kwi-G. oxydans genome nganye nganye. Iqela licuthe ii-mutants, nganye kuzo inejini ethile ekhutshiweyo, ukuze bakwazi ukuchonga ukuba yeyiphi imfuza edlala indima ekukhupheni izakhi ematyeni.

“Ndinethemba elikhulu,” utshilo uGazel. "Sinenkqubo apha eza kusebenza ngakumbi kunayo nayiphi na into eyenziwe ngaphambili."

U-Alexa Schmitz, umphandi we-postdoctoral kwilebhu yaseBarstow, ungumbhali wokuqala wokufunda, "I-Gluconobacter oxydans Knockout Collection ifumana ukuphuculwa kwe-Rare Earth Element Extraction," epapashwe kwiNdalo yoNxibelelwano.

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Ixesha lokuposa: Nov-19-2021