ʻO ka mea ʻike wai maikaʻi

Ua hoʻomohala kahi hui o nā mea noiʻi mai nā kulanui ma Scotland, Pokukala a me Kelemānia i kahi sensor e hiki ke kōkua i ka ʻike ʻana i ka loaʻa ʻana o nā pesticides i nā haʻahaʻa haʻahaʻa loa i nā ʻano wai.
ʻO kā lākou hana, i wehewehe ʻia i loko o kahi pepa hou i paʻi ʻia i kēia lā ma ka puke pai Polymer Materials and Engineering, hiki ke hana i ka nānā ʻana i ka wai i ʻoi aku ka wikiwiki, maʻalahi a maʻalahi.
Hoʻohana nui ʻia nā pesticides i ka mahiʻai a puni ka honua e pale i ka nalowale o nā mea kanu.Eia nō naʻe, pono e mālama ʻia, no ka mea, ʻo nā liʻiliʻi liʻiliʻi i loko o ka lepo, ka wai lepo a i ʻole ka wai kai hiki ke hōʻeha i ke olakino kanaka, holoholona a me ke kaiapuni.

Pono ka nānā mau ʻana i ke kaiapuni no ka hōʻemi ʻana i ka hoʻohaumia ʻana i ka wai i hiki ke hana wikiwiki i ka wā e ʻike ʻia ai nā pesticides i nā laʻana wai.I kēia manawa, hana maʻamau ka hoʻāʻo ʻana i ka pesticide ma lalo o nā kūlana lab me ka hoʻohana ʻana i nā ʻano e like me chromatography a me mass spectrometry.
ʻOiai hāʻawi kēia mau hoʻāʻo i nā hopena hilinaʻi a pololei, hiki ke hoʻopau i ka manawa a me ke kumukūʻai e hana ai.ʻO kahi mea hoʻohiki ʻē aʻe he mea hana loiloi kemika i kapa ʻia ʻo Raman Scattering (SERS).
Ke pā ka māmā i kahi mole, e laha ʻo ia ma nā alapine like ʻole ma muli o ke ʻano mole o ka mole.Hāʻawi ka SERS i ka poʻe ʻepekema e ʻike a ʻike i ka nui o nā molekala i koe i loko o kahi laʻana hoʻāʻo i hoʻopili ʻia ma kahi ʻili metala ma ke kāʻili ʻana i ka "manaʻo manamana" kūʻokoʻa o ka mālamalama i hoʻopuehu ʻia e nā molekala.
Hiki ke hoʻonui ʻia kēia hopena ma ka hoʻololi ʻana i ka ʻili metala i hiki iā ia ke adsorb i nā molekala, ma laila e hoʻomaikaʻi ai i ka hiki ke ʻike i nā haʻahaʻa haʻahaʻa o nā molekala i loko o ka hāpana.
Hoʻomaka ka hui noiʻi e hoʻomohala i kahi ala hoʻāʻo hou a hiki ke hoʻopili i nā molekala i loko o nā laʻana wai me ka hoʻohana ʻana i nā mea paʻi 3D i loaʻa a hāʻawi i nā hopena mua pololei ma ke kula.
No ka hana ʻana pēlā, ua aʻo lākou i nā ʻano ʻano like ʻole o nā hale kelepona i hana ʻia mai ka hui ʻana o ka polypropylene a me nā nanotubes kalapona multi-walled.Ua hana ʻia nā hale me ka hoʻohana ʻana i nā filament hehee, kahi ʻano maʻamau o ka paʻi 3D.
Me ka hoʻohana ʻana i nā ʻenehana kemika pulu maʻamau, waiho ʻia nā nanoparticles kālā a me ke gula ma luna o ka ʻili o ka hale cell e hiki ai i kahi kaʻina hoʻopuehu Raman i hoʻonui ʻia i ka ʻili.
Ua hoʻāʻo lākou i ka hiki ʻana o kekahi mau hale paʻi paʻi 3D ʻē aʻe e hoʻomoʻa a hoʻopili i nā molekala o ka methylene blue dye organik, a laila hoʻopaʻa ʻia lākou me ka hoʻohana ʻana i kahi spectrometer Raman portable.
ʻO nā mea i hana maikaʻi loa i nā hoʻāʻo mua - nā hoʻolālā lattice (nā hale kelepona manawaleʻa) i hoʻopaʻa ʻia i nā nanoparticles kālā - a laila hoʻohui ʻia i ke kaula hoʻāʻo.Ua hoʻohui ʻia nā mea liʻiliʻi o nā insecticides maoli (Siram a me ka paraquat) i ka wai kai a me ka wai hou a kau ʻia ma luna o nā ʻāpana hoʻāʻo no ka nānā ʻana i ka SERS.
Lawe ʻia ka wai mai ka nuku o ka muliwai ma Aveiro, Pokukala, a mai nā paipu ma ia wahi, i hoʻāʻo mau ʻia e nānā pono i ka haumia o ka wai.
Ua ʻike ka poʻe noiʻi ua hiki i nā ʻāpana ke ʻike i ʻelua mau molekole pesticide i ka haʻahaʻa haʻahaʻa e like me ka 1 micromole, ʻo ia ka mea like me hoʻokahi mole pesticide no ka miliona mole wai.
ʻO Polofesa Shanmugam Kumar, mai ke kula ʻo James Watt School of Engineering ma ke Kulanui o Glasgow, ʻo ia kekahi o nā mea kākau o ka pepa.Kūkulu ʻia kēia hana ma kāna noiʻi ʻana i ka hoʻohana ʻana i ka ʻenehana paʻi 3D e hana i nā lattices structural nanoengineered me nā waiwai kūʻokoʻa.
"ʻO nā hopena o kēia noiʻi mua he mea hoʻoikaika nui a hōʻike ʻia e hiki ke hoʻohana ʻia kēia mau mea haʻahaʻa haʻahaʻa e hana i nā sensor no SERS e ʻike i nā pesticides, ʻoiai ma nā haʻahaʻa haʻahaʻa."
Ua hoʻomohala ʻo Kauka Sara Fateixa mai ka CICECO Aveiro Materials Institute ma ke Kulanui o Aveiro, kahi mea kākau pū o ka pepa, i nā nanoparticles plasma e kākoʻo ana i ka ʻenehana SERS.ʻOiai ke nānā nei kēia pepa i ka hiki o ka ʻōnaehana ke ʻike i nā ʻano mea haumia wai, hiki ke hoʻohana maʻalahi i ka ʻenehana no ka nānā ʻana i ka loaʻa ʻana o nā mea haumia wai.