Ebe na-esi esi nke 5900 degrees Celsius na diamond-dị ka ike siri ike na-ejikọta ya na carbon: tungsten bụ metal kachasị arọ, ma nwere ọrụ ndu-karịsịa na microorganisms hụrụ okpomọkụ n'anya. Otu otu Tetyana Milojevic duziri sitere na ngalaba Chemistry na Mahadum Vienna na-akọ maka mkparịta ụka nke mbụ microbial-tungsten na-adịghị ahụkebe na oke nanometer. Dabere na nchoputa ndị a, ọ bụghị naanị tungsten biogeochemistry, kamakwa ndụ nke microorganisms na ọnọdụ mbara igwe nwere ike nyochaa. Nsonaazụ pụtara n'oge na-adịbeghị anya na akwụkwọ akụkọ Frontiers in Microbiology.

Dị ka ígwè siri ike na nke na-adịghị ahụkebe, tungsten, 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 oke egwu nke gburugburu tungsten pụta ma chọta ụzọ isi mee ka tungsten pụta. Ọmụmụ ihe 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 na ọrụ microorganisms nwere ike ịrụ na gburugburu tungsten nwere ụbara ma kọwaa nanoscale tungsten-microbial interface nke oke oke. Microorganism na-ahụ n'anya okpomọkụ na acid Metallosphaera sedula toro na ogige tungsten (Ọgụgụ). 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. Tungsten nwere ike ịbụ ihe dị mkpa na nke a.

Site na tungsten polyoxometalates dị ka usoro inorganic na-akwado ndụ ruo na microbial bioprocessing nke tungsten ore

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 iji ụyọkọ POM inorganic dabeere na tungsten na-enyere aka itinye ụdị tungsten redox dị iche iche n'ime mkpụrụ ndụ 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 nke tungsten ịnweta scheelite rụrụ site oké thermoacidophile M. sedula na-eduga n'ịgbajikwa nke scheelite Ọdịdị, ụdi solubilization nke tungsten, na tungsten mineralization nke microbial cell elu (Onyonyo 3). Ihe nanostructures biogenic tungsten carbide dị ka akọwara n'ọmụmụ ihe na-anọchi anya ihe nanomaterial nwere ike ịdịgide site n'ichepụta microbial na-akwado gburugburu ebe obibi.