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, emegharịwo n'ọnọdụ dị oke egwu nke gburugburu tungsten ma chọta ụzọ ha ga-esi megharịa.tungsten. Nnyocha abụọ nke biochemist na astrobiologist Tetyana Milojevic na nso nso a sitere na ngalaba nke Biophysical Chemistry, ngalaba nke Chemistry na Mahadum Vienna, mere ka ìhè dị na 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 dị 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 na-adịkarịghị anọchi anya ya, "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 na ọmụmụ ihe na-anọchi anya ihe 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.