Wata ƙungiyar masu bincike daga jami'o'i a Scotland, Portugal da Jamus ta ƙirƙiro na'urar firikwensin da za ta iya taimakawa wajen gano kasancewar magungunan kashe kwari a cikin ƙarancin yawan da ke cikin samfuran ruwa.
Aikinsu, wanda aka bayyana a cikin wata sabuwar takarda da aka buga a yau a cikin mujallar Polymer Materials and Engineering, zai iya sa sa ido kan ruwa ya fi sauri, sauƙi, kuma ya fi araha.
Ana amfani da magungunan kashe kwari sosai a fannin noma a duk faɗin duniya don hana asarar amfanin gona. Duk da haka, dole ne a yi taka-tsantsan, domin ko da ƙananan ɗigon ruwa a cikin ƙasa, ruwan ƙasa ko ruwan teku na iya haifar da illa ga lafiyar ɗan adam, dabbobi da muhalli.
Kula da muhalli akai-akai yana da mahimmanci don rage gurɓatar ruwa ta yadda za a iya ɗaukar mataki cikin gaggawa lokacin da aka gano magungunan kashe kwari a cikin samfuran ruwa. A halin yanzu, ana yin gwajin magungunan kashe kwari a ƙarƙashin yanayin dakin gwaje-gwaje ta amfani da hanyoyi kamar chromatography da mass spectrometry.
Duk da cewa waɗannan gwaje-gwajen suna ba da sakamako masu inganci da daidaito, suna iya ɗaukar lokaci da tsada. Wata hanya mai kyau ita ce kayan aikin nazarin sinadarai da ake kira Raman Scattering (SERS) mai haɓaka saman.
Idan haske ya bugi kwayar halitta, yana warwatsewa a mitoci daban-daban dangane da tsarin kwayar halitta. SERS yana bawa masana kimiyya damar gano da kuma gano adadin ragowar kwayoyin halitta a cikin samfurin gwaji da aka shafa a saman ƙarfe ta hanyar nazarin "yatsun hannu" na musamman na hasken da kwayoyin halitta suka warwatse.
Ana iya inganta wannan tasirin ta hanyar gyara saman ƙarfe don ya iya ɗaukar ƙwayoyin halitta, ta haka ne zai inganta ikon firikwensin don gano ƙarancin ƙwayoyin halitta a cikin samfurin.
Ƙungiyar binciken ta ɗauki matakin ƙirƙiro wata sabuwar hanyar gwaji mai sauƙin ɗauka wadda za ta iya ɗaukar ƙwayoyin halitta cikin samfuran ruwa ta amfani da kayan da aka buga ta hanyar amfani da fasahar 3D da ake da su, sannan ta samar da sahihan sakamako na farko a fannin.
Don yin hakan, sun yi nazarin nau'ikan tsarin tantanin halitta daban-daban da aka yi daga cakuda polypropylene da ƙwayoyin nanotubes na carbon masu bango da yawa. An ƙirƙiri gine-ginen ta amfani da zare mai narkewa, wani nau'in bugu na 3D da aka saba amfani da shi.
Ta hanyar amfani da dabarun gargajiya na sinadarai masu danshi, ana ajiye ƙwayoyin halitta na azurfa da zinariya a saman tsarin tantanin halitta don ba da damar tsarin watsawa na Raman mai inganci.
Sun gwada ikon nau'ikan nau'ikan kayan tantanin halitta daban-daban da aka buga a 3D don sha da kuma sha ƙwayoyin halittar methylene blue na launin halitta, sannan suka yi nazarin su ta amfani da na'urar aunawa ta Raman mai ɗaukuwa.
An ƙara kayan da suka yi aiki mafi kyau a gwaje-gwajen farko - ƙirar lattice (tsarin ƙwayoyin halitta na lokaci-lokaci) da aka ɗaure da ƙwayoyin azurfa - a cikin layin gwajin. An ƙara ƙananan adadin magungunan kwari na gaske (Siram da paraquat) a cikin ruwan teku da samfuran ruwan sabo kuma an sanya su a kan layukan gwaji don nazarin SERS.
Ana ɗebo ruwan daga bakin kogin da ke Aveiro, Portugal, da kuma daga famfunan ruwa a wannan yanki, waɗanda ake gwada su akai-akai don sa ido sosai kan gurɓatar ruwa.
Masu binciken sun gano cewa sassan sun sami damar gano ƙwayoyin magungunan kashe kwari guda biyu a cikin yawan ƙwayoyin cuta kamar ƙananan ƙwayoyin cuta guda 1, wanda yayi daidai da ƙwayar maganin kashe kwari guda ɗaya a cikin kowace kwayar ruwa miliyan ɗaya.
Farfesa Shanmugam Kumar, daga Makarantar Injiniya ta James Watt a Jami'ar Glasgow, yana ɗaya daga cikin marubutan wannan takarda. Wannan aikin ya dogara ne akan binciken da ya yi kan amfani da fasahar buga takardu ta 3D don ƙirƙirar layukan gini na nanoengineered tare da halaye na musamman.
"Sakamakon wannan binciken farko yana da matuƙar ƙarfafa gwiwa kuma yana nuna cewa ana iya amfani da waɗannan kayan masu araha don samar da na'urori masu auna sigina ga SERS don gano magungunan kashe kwari, koda a ƙananan yawansu."
Dr. Sara Fateixa daga Cibiyar Kayan Aiki ta CICECO Aveiro da ke Jami'ar Aveiro, wacce ta rubuta takardar, ta ƙirƙiro ƙwayoyin halittar jini da ke tallafawa fasahar SERS. Duk da cewa wannan takarda ta yi nazari kan ikon tsarin na gano takamaiman nau'ikan gurɓatattun ruwa, ana iya amfani da fasahar cikin sauƙi don sa ido kan kasancewar gurɓatattun ruwa.
Lokacin Saƙo: Janairu-24-2024