Kua whakawhanakehia e tētahi rōpū kairangahau mai i ngā whare wānanga o Kōtirana, Potukara me Tiamana tētahi pūoko hei āwhina i te kite i te aroaro o ngā patupatu pepeke i roto i ngā kukū iti rawa i roto i ngā tauira wai.
Ko tā rātou mahi, i whakaahuatia i roto i tētahi pepa hou i whakaputaina i tēnei rā i roto i te puka Polymer Materials and Engineering, ka taea te tere ake, te māmā ake, me te iti ake te utu mō te aroturuki wai.
He whānuitia te whakamahinga o ngā patupatu i roto i te ahuwhenua huri noa i te ao hei ārai i te ngaronga o ngā hua. Heoi, me tūpato, nā te mea ahakoa he iti noa ngā turuturu ki roto i te oneone, i te wai whenua, i te wai moana rānei, ka pā kino pea ki te hauora o te tangata, o te kararehe me te taiao.
He mea nui te aroturuki i te taiao i ia wā hei whakaiti i te poke o te wai kia taea ai te mahi wawe ina kitea ngā patupatu i roto i ngā tauira wai. I tēnei wā, ko te whakamātautau patupatu ka mahia i raro i ngā āhuatanga taiwhanga mā te whakamahi i ngā tikanga pēnei i te chromatography me te spectrometry papatipu.
Ahakoa he pono, he tika hoki ngā hua o ēnei whakamātautau, he roa pea te wā, he nui hoki te utu ki te mahi. Ko tētahi atu huarahi whai hua ko te taputapu tātari matū e kiia nei ko te Raman Scattering whakarei ake i te mata (SERS).
Ina pā te mārama ki tētahi ngota, ka marara i ngā auau rerekē i runga i te hanganga ngota o te ngota. Mā te SERS ka taea e ngā kaipūtaiao te kite me te tautuhi i te nui o ngā ngota toenga i roto i tētahi tauira whakamātautau e piri ana ki tētahi mata whakarewa mā te tātari i te "tohu matimati" ahurei o te mārama e marara ana e ngā ngota.
Ka taea te whakarei ake i tēnei pānga mā te whakarerekē i te mata o te konganuku kia taea ai te mimiti i ngā ngota, ā, mā reira ka whakapai ake i te kaha o te pūoko ki te kite i ngā kukū iti o ngā ngota i roto i te tauira.
I whakamātau te tīma rangahau ki te whakawhanake i tētahi tikanga whakamātautau hou, ka taea te kawe, ka taea te mimiti i ngā ngota ngota ki roto i ngā tauira wai mā te whakamahi i ngā rauemi tā 3D e wātea ana, ā, ka whakarato i ngā hua tuatahi tika i te mara.
Hei whakatutuki i tēnei, i akohia e rātou ētahi momo hanganga pūtau rerekē i hangaia mai i te ranunga o te polypropylene me ngā nanotube waro maha-pakipa. I hangaia ngā whare mā te whakamahi i ngā miro rewa, he momo tānga 3D noa.
Mā te whakamahi i ngā tikanga matū mākū tuku iho, ka whakatakotoria ngā matūriki hiriwa me te koura ki te mata o te hanganga pūtau hei whakahohe i tētahi tukanga marara Raman whakarei ake i te mata.
I whakamātauria e rātou te kaha o ētahi hanganga rauemi pūtau rerekē kua tāia 3D ki te mimiti me te piri i ngā ngota ngota o te tae methylene blue waro, kātahi ka tātarihia mā te whakamahi i tētahi inenga Raman kawe.
Ko ngā rauemi i tino pai te mahi i ngā whakamātautau tuatahi – arā, ko ngā hoahoa whatunga (ngā hanganga pūtau ā-wā) e herea ana ki ngā matūriki hiriwa – i tāpirihia ki te rīpene whakamātautau. I tāpirihia he iti noa o ngā patu pepeke tūturu (Siram me te paraquat) ki ngā tauira wai moana me te wai māori, ā, i whakatakotoria ki runga i ngā rīpene whakamātautau hei tātaritanga SERS.
Ka tangohia te wai i te wahapū o te awa i Aveiro, Potukara, me ngā puna wai i te rohe anō, e whakamātauhia ana i ia wā hei aroturuki i te parahanga wai.
I kitea e ngā kairangahau ka taea e ngā rīpene te kite i ngā ngota patupatu e rua i roto i ngā kukū iti iho i te 1 micromole, he ōrite ki te kotahi ngota patupatu mō ia miriona ngota wai.
Ko Ahorangi Shanmugam Kumar, nō te Kura Hangarau o James Watt i Te Whare Wānanga o Glasgow, tētahi o ngā kaituhi o te pepa. E hangai ana tēnei mahi ki tana rangahau mō te whakamahinga o te hangarau tā 3D hei hanga i ngā whatunga hanganga nano-engineered me ngā āhuatanga ahurei.
"He tino whakatenatena ngā hua o tēnei rangahau tuatahi, ā, e whakaatu ana ka taea te whakamahi i ēnei rauemi iti te utu hei hanga pūoko mō te SERS hei kite i ngā patupatu, ahakoa i ngā kukū tino iti."
Kua whakawhanakehia e Tākuta Sara Fateuxa o te CICECO Aveiro Materials Institute i Te Whare Wānanga o Aveiro, he kaituhi tahi o te pepa, ngā matūriki plasma e tautoko ana i te hangarau SERS. Ahakoa e tirotirohia ana e tēnei pepa te kaha o te pūnaha ki te kite i ngā momo poke wai motuhake, ka taea te whakamahi ngāwari i te hangarau hei aroturuki i te aroaro o ngā poke wai.
Wā tuku: Hanuere-24-2024