Amazi meza

Itsinda ry’abashakashatsi bo muri za kaminuza zo muri otcosse, Porutugali n’Ubudage bakoze sensor ishobora gufasha kumenya ko hari imiti yica udukoko twangiza cyane mu byitegererezo by’amazi.
Ibikorwa byabo, byasobanuwe mu mpapuro nshya zasohotse uyu munsi mu kinyamakuru Polymer Materials and Engineering, bishobora gutuma gukurikirana amazi byihuse, byoroshye, kandi bihendutse.
Imiti yica udukoko ikoreshwa cyane mubuhinzi kwisi kugirango hirindwe igihombo.Icyakora, hagomba kwitonderwa, kuko no gutembera mu butaka, amazi yo mu butaka cyangwa amazi yo mu nyanja bishobora kwangiza ubuzima bw’abantu, inyamaswa n’ibidukikije.

Gukurikirana ibidukikije buri gihe ni ngombwa kugira ngo amazi agabanuke kugira ngo hafatwe ingamba zihuse mu gihe hagaragaye imiti yica udukoko.Kugeza ubu, gupima imiti yica udukoko mubisanzwe bikorwa muri laboratoire hakoreshejwe uburyo nka chromatografiya hamwe na sprometrike.
Mugihe ibi bizamini bitanga ibisubizo byizewe kandi byukuri, birashobora gutwara igihe kandi bihenze kubikora.Uburyo bumwe butanga ikizere nigikoresho cyo gusesengura imiti cyitwa ubuso bwongerewe imbaraga Raman Scattering (SERS).
Iyo urumuri rukubise molekile, ikwirakwira kuri radiyo zitandukanye bitewe n'imiterere ya molekile.SERS yemerera abahanga kumenya no kumenya ingano ya molekile zisigaye mu cyitegererezo cyipimishije cyerekanwe hejuru yicyuma mu gusesengura “igikumwe” kidasanzwe cyurumuri rwatatanye na molekile.
Izi ngaruka zirashobora kongererwa imbaraga muguhindura hejuru yicyuma kugirango gishobore kwamamaza molekile, bityo bikazamura ubushobozi bwa sensor yo kumenya imbaraga nke za molekile murugero.
Itsinda ry’ubushakashatsi ryiyemeje gushyiraho uburyo bushya, bworoshye bwo kwipimisha bushobora kwinjiza molekile mu byitegererezo by’amazi hakoreshejwe ibikoresho byacapwe 3D kandi bigatanga ibisubizo nyabyo mu murima.
Kugira ngo babigereho, bize ubwoko butandukanye bwimiterere yimikorere ya selile ikozwe muruvange rwa polypropilene na karubone nini ya karubone.Inyubako zakozwe hifashishijwe firimu zashongeshejwe, ubwoko busanzwe bwo gucapa 3D.
Ukoresheje tekinike gakondo ya chimie, ifeza na zahabu nanoparticles ishyirwa hejuru yimiterere ya selile kugirango itume Raman ikwirakwiza hejuru.
Bagerageje ubushobozi bwibikoresho bitandukanye bya 3D byacapwe kugirango binjire kandi berekane molekules ya methylene yubururu bwa methylene yubururu, hanyuma barabisesengura bakoresheje icyerekezo cya Raman cyerekanwa.
Ibikoresho byitwaye neza mubizamini byambere - ibishushanyo mbonera (imiterere ya selile ya selile) ihujwe na nanoparticles ya silver - noneho byongewe kumurongo wibizamini.Umubare muto w’udukoko twica udukoko (Siram na paraquat) wongeyeho amazi y’inyanja n’amazi meza hanyuma ashyirwa ku kizamini cyo gupima SERS.
Amazi akurwa mu ruzi rwa Aveiro, muri Porutugali, no mu miyoboro yo mu gace kamwe, igeragezwa buri gihe kugira ngo ikurikirane neza umwanda w’amazi.
Abashakashatsi basanze iyo mitwe yashoboye kumenya molekile ebyiri zica udukoko twibasiwe na micromole 1, ibyo bikaba bihwanye na molekile imwe yica udukoko kuri miriyoni y'amazi.
Porofeseri Shanmugam Kumar, ukomoka mu ishuri ry’ubuhanga rya James Watt muri kaminuza ya Glasgow, ni umwe mu banditsi b'uru rupapuro.Aka kazi gashingiye ku bushakashatsi bwe mu gukoresha ikoranabuhanga rya 3D ryo gucapa kugira ngo habeho utuzu twubatswe nanoengineered dufite imiterere yihariye.
Ati: "Ibyavuye muri ubu bushakashatsi bw'ibanze birashimishije cyane kandi byerekana ko ibyo bikoresho bihendutse bishobora gukoreshwa mu gukora ibyuma bifata ibyuma bifata ibyuma byica udukoko, ndetse no mu bitekerezo bike cyane."
Dr. Sara Fateixa wo mu kigo cya CICECO Aveiro Materials Institute muri kaminuza ya Aveiro, umwe mu banditsi b'uru rupapuro, yakoze plasma nanoparticles ishyigikira ikoranabuhanga rya SERS.Mugihe iyi mpapuro isuzuma ubushobozi bwa sisitemu yo kumenya ubwoko bw’amazi yanduye, tekinoroji irashobora gukoreshwa byoroshye mugukurikirana ahari amazi yanduye.