Bar karkaraya oo ah 5900 darajo Celsius iyo adayg dheeman u eg oo ay weheliso kaarboon:tungstenwaa birta ugu culus, haddana waxay leedahay hawlo bayooloji-gaar ahaan noolaha kulaylka jecel. Koox ay hogaamiso Tetyana Milojevic oo ka socda kuliyada kimistariga ee jaamacada Vienna ayaa warbixin ka soo saartay markii ugu horeysay microbial dhif ah.tungstenisdhexgalka inta u dhaxaysa nanometerka. Iyada oo ku saleysan natiijooyinkaan, kaliya maahantungstenbiochemistry, laakiin sidoo kale badbaadada microorganisms ee xaaladaha hawada sare waa la baari karaa. Natiijadu waxay dhawaan ka soo muuqatay joornaalkaXuduudaha Microbiology.

Sida bir adag oo naadir ah,tungsten, oo leh sifooyinkeeda aan caadiga ahayn iyo meesha ugu sarreysa ee dhalaalidda biraha oo dhan, waa doorasho aan suurtagal ahayn ee nidaamka noolaha. Kaliya dhowr jeermiska, sida arcaea thermophilic ama microorganisms-ka xorta ah nucleus-ka, ayaa la qabsaday xaaladaha ba'an ee deegaanka tungsten waxayna heleen hab ay ku milmaan.tungsten. Laba daraasadood oo ay dhowaan sameeyeen khabiir ku takhasusay cilmiga bayoolajiga iyo astrobiologist Tetyana Milojevic oo ka tirsan Waaxda Kiimikada Biophysical, Kulliyadda Chemistry ee Jaamacadda Vienna, ayaa iftiimisay doorka suurtagalka ah ee noolahatungsten- deegaan hodan ah oo sharax nanoscaletungstenIsku xirka microbial ee kulaylka aadka u daran- iyo microorganism acid-jecel Metallosphaera sedula oo la koraytungstenxeryahooda (Jaantusyada 1, 2). Sidoo kale waa microorganism-kan oo lagu tijaabin doono badbaadada inta lagu jiro safarka interstellar ee daraasadaha mustaqbalka ee jawiga hawada sare.TungstenTani waxay noqon kartaa arrin lagama maarmaan ah.

Katungstenpolyoxometalates oo ah qaab-dhismeedyada aan noolaha lahayn ee nolosha-joogta u ah bioprocessing-ka microbialmacdanta tungsten

Si la mid ah unugyada macdanta ferrous sulfide, polyoxometalates macmal ah (POMs) ayaa loo tixgaliyaa inay yihiin unugyo aan dabiici ahayn oo fududeynaya hababka kiimikada ee nolosha hore iyo muujinta sifooyinka "nolosha u eg". Si kastaba ha ahaatee, ku habboonaanta POM-yada hababka nolosha- waaritaanka (tusaale, neefsiga microbial) weli lama hadlin. "Iyadoo la adeegsanayo tusaalaha Metallosphaera sedula, oo ku koraya aashitada kulul oo ay ku neefsato iyada oo loo marayo oxidation birta, waxaan baarnay in nidaamyada isku dhafan ee isku dhafan ee ku salaysan tungsten POM clusters ay sii wadi karaan koritaanka M. sedula waxayna dhalin karaan kororka unugyada iyo kala qaybinta," ayuu yiri Milojevic.

Saynis yahanadu waxay awoodeen inay muujiyaan in isticmaalkatungstenKutlada POM-ku-saleysan ee aan nooleyn waxay awood u siineysaa isku-darka kala-duwanaanshahatungstennoocyada redox galay unugyada microbial. Kaydka organometallic ee is-dhexgalka u dhexeeya M. sedula iyo W-POM ayaa la kala direy ilaa nanometerka inta lagu guda jiro wadashaqeyn miro dhal ah oo lala yeesho Xarunta Australiya ee Electron Microscope iyo Nanoanalysis (FELMI-ZFE, Graz)." Natiijooyinkayagu waxay ku daraan tungsten-encrusted M. sedula diiwaannada sii kordhaya ee noocyada microbial biomineralized, oo ay ka mid yihiin archaea dhif ah lagu matalo, "ayuu yidhi Milojevic. biotransformation Themacdanta tungstenscheelite oo ay sameeyeen thermoacidophile M. sedula waxay keenaysaa jebinta qaab dhismeedka scheelite, solubilization xigatungsteniyotungstenmacdanta dusha unugyada microbial (Jaantuska 3). Biogeniccarbide tungstenNanostructures la mid ah oo lagu sharraxay daraasaddu waxay ka dhigan tahay nanomaterial waara oo suurtagal ah oo ay heshay naqshadaynta microbial-ka-saaxiibtinimo ee deegaanka.

"Natiijooyinkayagu waxay muujinayaan in M. sedula uu sameeyotungstenDusha unugga macdanta leh oo sita iyada oo loo marayo encrusting latungsten carbide u egxeryahooda,” ayuu yidhi Milojevic oo ku takhasusay biochemist. Tanitungstenlakabka daboolan ee laga sameeyay agagaarka unugyada M. sedula ayaa laga yaabaa inay si aad u wanaagsan u matalaan istaraatiijiyad microbial ah si ay ugu adkeysato xaaladaha adag ee deegaanka, sida inta lagu jiro safarka interplanetary.Tungstenisku-duubnidu waxay u adeegi kartaa sidii hub ka-hortagga shucaaca xooggan oo liddi ku ah xaaladaha adag ee deegaanka. "Hubka tungsten microbial wuxuu noo ogolaanayaa inaan sii baranno badbaadada microorganism-ka ee jawiga hawada sare," ayuu hadalkiisa kusoo gabagabeeyay Milojevic.