Halkaan waxaa ku soo baxay Xal Ugu Dhaw Sirta Nolosha U Dooratay Hal "Gacan" oo Ka Mid Ah Moleekyulada
Yeruusaalem, 23 Abriil, 2026 (TPS-IL) — Sirta ah sababta nolosha ay u doorato hal "gacan" oo ka mid ah moleekyulada, halkii ay ka dooran lahayd sawirkeeda muraayadda, ayaa laga yaabaa inay u dhawaato sharraxaad ku salaysan fiisikada quantum. Tani waxay mustaqbalka saameyn ku yeelan kartaa wax walba, laga bilaabo dawooyinka ilaa qalabka korantada ee jiilka cusub.
Daraasad cusub oo Israa'iili ah ayaa soo jeedinaysa in sifo yar oo quantum ah oo ka mid ah electrons-ka, oo loo yaqaan "spin," ay caawin karto sharraxaadda sababta biology-ga ay si joogto ah u isticmaasho hal nooc oo ka mid ah moleekyulada badan, halkii ay ka isticmaali lahayd kuwa muraayadda u ah.
Moleekyulada badan ee biyolojiga ah waxay ku yimaadaan laba nooc oo muraayadda ah, oo loo yaqaan enantiomers. Kiimikada caadiga ah, labada nooc waa inay si isku mid ah u dhaqmaan oo ay u muuqdaan tiro siman. Laakiin nidaamyada noolaha, taasi maahan kiiska. Nolosha ayaa ku dhawaad mar walba isticmaasha hal nooc oo keliya: amino acids-ka ayaa caadiyan ah kuwo bidix-gacan ah, halka sonkorta ay yihiin kuwo midig-gacan ah. Qaabkan, oo loo yaqaan homochirality, ayaa yaabiyay saynisyahanada in ka badan boqol sano.
Koox cilmi-baarayaal Israa'iili ah oo uu hoggaaminayay Prof. Yossi Paltiel oo ka socda Jaamacadda Cibraaniga ee Yeruusaalem ayaa ogaaday in jawaabtu ay ku jirto sida electrons-ka ugu socdaan moleekyuladan. Electrons-ka waxay leeyihiin sifo loo yaqaan spin, taas oo saameyn ku leh sida ay ula falgalaan walxaha. Daraasadda ayaa ogaatay in marka electrons-ka ay dhex maraan moleekyulada chiral, spin-koodu uu si kala duwan u dhaqmo iyadoo ku xiran nooca muraayadda ee ay la kulmaan.
Soo-saarista waxaa lagu daabacay majaladda cilmi-baarista ee Science Advances.
"Nolosha waa homochiral. Tani maahan wax fudud, maadaama kiimikada caadiga ah labada moleekyul ee muraayadda ah ay leeyihiin fursad isku mid ah," Paltiel waxa uu u sheegay The Press Service of Israel. "Daraasaddeenu waxay weydiinaysaa sababta dabeecaddu ay u tahay chiral iyo sida loo jebiyo isku-dheelitirka. Waraaqda hadda jirta waxay soo jeedinaysaa in is-dhexgalka spin ee electron-ka uu sharraxi karo labada saameyn."
Farqiga Yar ee Spin-ka ayaa Muhiim Ah
Inkasta oo labada nooc ee moleekyul ay leeyihiin tamar isku mid ah xaaladaha deggan, haddana ma aha kuwo si siman u dhaqma inta lagu jiro hababka firfircoon sida gaadiidka electron-ka iyo falcelinta kiimikada. Soo-saarista waxay muujinaysaa in farqiyadan ay saameyn ku yeelan karaan sida waxtarka leh ee nooc kasta uu uga qayb qaadanayo falcelinta ay ku lug leeyihiin electrons-ka. Muddo dheer, xitaa farqiyo aad u yar oo waxtarka ah ayaa noqon kara kuwo muhiim ah. Cilmi-baarayaasha ayaa soo jeedinaya in haddii hal nooc oo moleekyul ah uu si joogto ah u qabto wax yar oo ka wanaagsan xaaladahan, waxay si tartiib tartiib ah u noqon kartaa mid ugu sarreysa. Tani waxay caawin kartaa sharraxaadda sida biology-ga ay u dooratay hal "gacan" oo ka mid ah moleekyulada dhammaan nolosha la yaqaan.
Soo-saarista waxay isku daraysaa shaqo aragtiyeed, natiijooyin tijaabo, iyo xisaabinta dhaqanka electron-ka ee nidaamyada chiral. Waxay tilmaamayaan doorka aan hore loo qiimayn karin ee saameynta quantum ee hababka muhiimka u ah biology-ga.
Paltiel waxa uu u sheegay TPS-IL in cilmi-baarista "ay leedahay codsiyo suuqa dawooyinka, tamarta cagaaran, iyo hagaajinta kuwa wax-soo-saarka ee warshadaha chip-ka."
Daawooyinka, helitaanka ayaa caawin kara hagaajinta sida dawooyinka loo nashqadeeyo oo loo soo saaro. Daawooyin badan ayaa ku jira laba nooc oo muraayadda ah, laakiin caadiyan mid keliya ayaa waxtar leh jirka bini'aadamka. Haddii spin-ka electron-ka uu saameyn ku yeelan karo nooca moleekyul ee noqonaya midka ugu sarreeya, waxaa suurtagal ah in la soo saaro nooca saxda ah si waxtar leh oo leh saxnaan sare.
Korontada iyo tiknoolajiyada semiconductor-ka, soo-saarista waxay caawin kartaa wax ka qabashada mid ka mid ah caqabadaha sii kordhaya ee warshadaha: maareynta kulaylka ee chips-ka sii yaraanaya oo sii xoogaystay. Daraasadda ayaa soo jeedinaysa in agabka loo nashqadeeyay oo leh sifooyin "chiral" oo ay saameyn ku yeelato spin-ka electron-ka ay hagaajin karaan sida kulaylka iyo calaamadaha korantada loo maamulo. Paltiel waxa uu u sheegay TPS-IL in fikraddan horeba loo baadhayo ganacsi ahaan, isaga oo sheegay in shirkad bilow ah oo la xidhiidha cilmi-baarista ay ka shaqaynayso "dahaarka chiral iyo biraha chiral ee wax ka qabta maareynta kulaylka ee warshadaha semiconductor-ka."
Tamarta iyo sayniska agabka, habka ayaa horseedi kara siyaabo cusub oo loo nashqadeeyo agabka ugu waxtarka badan ee falcelinta kiimikada iyo gudbinta tamarta. Sababtoo ah saameyntu waxay la xidhiidhaa sida electrons-ka ugu socdaan walxaha, waxay caawin kartaa hagaajinta catalysts iyo agabka gudbinta ee loo isticmaalo tiro badan oo tignoolajiyad ah, oo ay ku jiraan nidaamyada tamarta cagaaran. Si ballaaran, waxay soo jeedinaysaa isbeddel ku yimid habka, halkaas oo saynisyahanadu ay ku nashqadeyn karaan agabka aan ku salaynayn qaab-dhismeedka kiimikada oo keliya, laakiin sidoo kale sida spin-ka electron-ka ula falgalaan qaab-dhismeedka moleekyulada.
Mawduucyada La Xiriira
