Ebe na-esi esi nke 5900 degrees Celsius na ike siri ike dị ka diamond jikọtara ya na carbon:tungstenbụ ígwè kasị arọ, ma nwee ọrụ ndị dị ndụ—karịsịa n'ime ụmụ nje ndị na-ahụ okpomọkụ n'anya.Otu otu Tetyana Milojevic duziri sitere na ngalaba Chemistry na Mahadum Vienna na-akọ akụkọ nke izizi microbial na-adịghị ahụkebe-tungstenmmekọrịta na nso nanometer.Dabere na nchọpụta ndị a, ọ bụghị naanịtungstenbiogeochemistry, mana enwere ike inyocha ndụ nke microorganisms na ọnọdụ mbara igwe.Nsonaazụ pụtara n'oge na-adịbeghị anya na akwụkwọ akụkọOke na Microbiology.

Dị ka metal siri ike na nke na-adịghị ahụkebe,tungsten, nke nwere ihe pụrụ iche ya na ebe mgbaze kachasị elu nke ọla niile, bụ nhọrọ a na-atụghị anya ya maka usoro ndu.Naanị microorganisms ole na ole, dị ka thermophilic archaea ma ọ bụ microorganisms na-enweghị cell nucleus, emewo ka ọnọdụ dị njọ nke gburugburu tungsten pụta ma chọta ụzọ ha ga-esi na-akpakọrịta.tungsten.Nnyocha abụọ nke biochemist na ọkà mmụta mbara igwe Tetyana Milojevic na nso nso a sitere na Ngalaba Biophysical Chemistry, ngalaba nke Chemistry na Mahadum Vienna, mere ka ìhè dị n'ọrụ microorganisms nwere ike ịrụ na a.tungstengburugburu ebe obibi bara ụba ma kọwaa nanoscaletungsten-microbial interface nke oke okpomọkụ- na acid hụrụ microorganism Metallosphaera sedula toro natungstenogige (Foto 1, 2).Ọ bụkwa microorganism a ka a ga-anwale maka ịlanarị n'oge njem interstellar na ọmụmụ ihe n'ọdịnihu na gburugburu mbara igwe.Tungstennwere ike ịbụ ihe dị mkpa na nke a.

Site natungstenpolyoxometalates dị ka usoro inorganic na-akwado ndụ maka microbial bioprocessing nke.tungsten ọla

Dị ka ferrous sulfide ịnweta mkpụrụ ndụ, a na-ahụta polyoxometalates artificial (POMs) dị ka mkpụrụ ndụ inorganic na-eme ka usoro kemịkal nke mbụ na-egosipụta àgwà "dị ka ndụ".Otú ọ dị, mkpa nke POMs na usoro na-edobe ndụ (dịka, microbial respiration) ka ekwubeghị okwu."N'iji ihe atụ nke Metallosphaera sedula, nke na-eto na acid na-ekpo ọkụ ma na-eku ume site na metal oxidation, anyị nyochara ma usoro inorganic mgbagwoju anya na-adabere na ụyọkọ tungsten POM nwere ike ịkwado uto nke M. sedula ma mepụta mgbasawanye na nkewa cellular," ka Milojevic na-ekwu.

Ndị ọkà mmụta sayensị nwere ike igosi na ojiji nketungstenỤyọkọ POM inorganic dabeere na-enyere aka ntinye nke dị iche ichetungstenụdị redox n'ime sel microbial.Nkwụnye ego organometallic na interface dị n'etiti M. sedula na W-POM gbazere ruo na nanometer nso n'oge mmekọ nke ọma na Ụlọ Ọrụ Austrian maka Electron Microscope na Nanoanalysis (FELMI-ZFE, Graz)."Ihe nchoputa anyị na-agbakwunye tungsten-encrusted M. sedula na ndekọ na-eto eto nke ụdị microbial biomineralized, nke archaea anaghị adịkarị, "ka Milojevic kwuru.The biotransformation nketungsten ịnwetascheelite rụrụ site oké thermoacidophile M. sedula na-eduga n'ịgbajikwa nke scheelite Ọdịdị, ụdi solubilization nke.tungsten, natungstenmineralization nke microbial cell elu (Fig 3).The biogenictungsten carbide-dị ka nanostructures akọwara n'ime ọmụmụ ihe na-anọchite anya nanomaterial nwere ike na-adigide site n'ichepụta microbial na-akwado gburugburu ebe obibi.

“Nsonaazụ anyị na-egosi na ụdị M. sedulatungsten-agba mineralized cell elu site encrusting natungsten carbide dị kaogige,” ọkà mmụta ihe ndị na-ahụ maka ihe ndị na-emepụta ihe na-emepụta ihe bụ Milojevic na-akọwa.Nke atungsten-encrusted oyi akwa kpụrụ gburugburu sel nke M. sedula nwere ike na-anọchi anya nke ọma a microbial atụmatụ idi ajọ ọnọdụ gburugburu ebe obibi, dị ka n'oge interplanetary njem.Tungstenencapsulation nwere ike ịrụ ọrụ dị ka ihe agha na-echebe redio dị ike megide ọnọdụ gburugburu ebe obibi siri ike."Ihe agha tungsten microbial na-enye anyị ohere ịga n'ihu na-amụ banyere ịdị ndụ nke microorganism a na gburugburu mbara igwe," Milojevic kwubiri.