Wata ƙungiyar masu bincike daga jami'o'i a Scotland, Portugal da Jamus sun ƙirƙira na'urar firikwensin da za ta iya taimakawa wajen gano kasancewar magungunan kashe qwari a cikin ƙananan ƙima a cikin samfuran ruwa.
Ayyukan su, wanda aka bayyana a cikin sabon takarda da aka buga a yau a cikin mujallar Polymer Materials and Engineering, na iya sa kula da ruwa da sauri, sauƙi, da rahusa.
Ana amfani da magungunan kashe qwari sosai a harkar noma a duniya don hana asarar amfanin gona.Duk da haka, dole ne a yi taka tsantsan, domin ko da ƙananan ɗigogi a cikin ƙasa, ruwan ƙasa ko ruwan teku na iya haifar da lahani ga lafiyar ɗan adam, dabbobi da muhalli.
Kula da muhalli na yau da kullun yana da mahimmanci don rage gurɓataccen ruwa ta yadda za a iya ɗaukar matakin gaggawa lokacin da aka gano magungunan kashe qwari a samfuran ruwa.A halin yanzu, yawanci ana yin gwajin maganin kashe qwari a ƙarƙashin yanayin dakin gwaje-gwaje ta amfani da hanyoyi kamar chromatography da massspectrometry.
Duk da yake waɗannan gwaje-gwajen suna ba da ingantaccen sakamako mai inganci, suna iya ɗaukar lokaci da tsada don yin su.Ɗaya daga cikin madaidaicin madaidaicin shine kayan aikin bincike na sinadarai mai suna Raman Scattering (SERS) mai haɓakawa.
Lokacin da haske ya riski kwayar halitta, yana watsewa a mitoci daban-daban dangane da tsarin kwayoyin halittar.SERS na baiwa masana kimiyya damar ganowa da gano adadin ragowar ƙwayoyin da ke cikin samfurin gwajin da aka tallata akan saman ƙarfe ta hanyar yin nazarin “hantsin yatsa” na musamman na hasken da ke warwatse ta ƙwayoyin.
Ana iya haɓaka wannan tasirin ta hanyar gyaggyara farfajiyar ƙarfe ta yadda zai iya lalata kwayoyin halitta, ta yadda za a inganta ikon firikwensin don gano ƙananan ƙwayoyin ƙwayoyin cuta a cikin samfurin.
Ƙungiyar binciken ta tashi don haɓaka sabuwar hanya, mafi šaukuwa hanyar gwajin da za ta iya shigar da kwayoyin halitta cikin samfuran ruwa ta amfani da kayan bugu na 3D da ke akwai da kuma samar da ingantaccen sakamako na farko a filin.
Don yin haka, sun yi nazarin nau'ikan sifofi daban-daban da aka yi daga cakuda polypropylene da carbon nanotubes masu bango da yawa.An ƙirƙiri gine-ginen ta amfani da narkakkar zaren, nau'in bugu na 3D na kowa.
Yin amfani da dabarun jika na gargajiya na gargajiya, azurfa da nanoparticles na zinariya ana ajiye su a saman tsarin tantanin halitta don ba da damar ingantaccen tsarin watsawa na Raman.
Sun gwada ikon nau'ikan sifofi daban-daban na 3D bugu na sifofi don ɗauka da kuma haɗa kwayoyin halitta na launin shuɗi na methylene na halitta, sannan suka bincika su ta amfani da na'urar sikirin Raman mai ɗaukar hoto.
Abubuwan da suka yi mafi kyau a cikin gwaje-gwajen farko - ƙirar lattice (tsararrun salon salula na lokaci-lokaci) waɗanda aka ɗaure da nanoparticles na azurfa - sannan an ƙara su zuwa tsiri na gwaji.An ƙara ƙananan ƙwayoyin kwari na gaske (Siram da paraquat) a cikin ruwan teku da samfuran ruwa masu kyau kuma an sanya su a kan igiyoyin gwaji don nazarin SERS.
Ana fitar da ruwan ne daga bakin kogin da ke Aveiro, Portugal, da kuma daga famfunan ruwa a wannan yanki, wadanda ake gwadawa akai-akai don kula da gurbatar ruwa yadda ya kamata.
Masu binciken sun gano cewa tsibiran sun iya gano kwayoyin maganin kashe qwari guda biyu a cikin adadin da bai kai micromole 1 ba, wanda yayi daidai da kwayoyin maganin kashe qwari guda ɗaya a cikin kwayoyin ruwa miliyan.
Farfesa Shanmugam Kumar, daga Makarantar Injiniya ta James Watt a Jami'ar Glasgow, na ɗaya daga cikin mawallafin jaridar.Wannan aikin yana ginawa akan bincikensa game da amfani da fasahar bugu na 3D don ƙirƙirar lattices na nanoengineered tare da kaddarorin na musamman.
"Sakamakon wannan binciken na farko yana da ƙarfafawa sosai kuma yana nuna cewa ana iya amfani da waɗannan ƙananan kayan aiki don samar da na'urori masu auna sigina don SERS don gano magungunan kashe qwari, ko da a cikin ƙananan ƙididdiga."
Dokta Sara Fateixa daga Cibiyar Kayan Aiki ta CICECO Aveiro a Jami'ar Aveiro, mawallafin marubucin takarda, ya kirkiro nanoparticles na plasma wanda ke tallafawa fasahar SERS.Yayin da wannan takarda ke nazarin ikon tsarin don gano takamaiman nau'ikan gurɓataccen ruwa, ana iya amfani da fasahar cikin sauƙi don lura da kasancewar gurɓataccen ruwa.
Lokacin aikawa: Janairu-24-2024