Chikwata chevaongorori kubva kumayunivhesiti eScotland, Portugal neGermany yakagadzira sensor inogona kubatsira kuona kuvepo kwemishonga yezvipembenene muzvikamu zvakaderera zvakanyanya mumasampuli emvura.
Basa ravo, rinotsanangurwa mubepa idzva rakabudiswa nhasi mumagazini yePolymer Materials uye Engineering, inogona kuita kuti kuongorora mvura kuve nekukurumidza, nyore, uye kudhura.
Mishonga yezvipembenene inoshandiswa zvakanyanya mukurima pasi rose kudzivirira kurasikirwa kwegoho.Zvisinei, kuchenjerera kunofanira kushandiswa, sezvo kunyange kunyuza kuduku muvhu, pasi pemvura kana mvura yegungwa kunogona kukonzera kukuvadza kuhutano hwevanhu, mhuka uye kwezvakatipoteredza.
Kugara uchitarisa kwezvakatipoteredza kwakakosha kuderedza kusvibiswa kwemvura kuitira kuti danho rekukasika rigone kutorwa kana mishonga yezvipembenene yaonekwa mumasampuli emvura.Parizvino, kuongororwa kwemishonga yezvipembenene kunowanzoitwa pasi pemamiriro emurabhoritari uchishandisa nzira dzakadai sechromatography uye mass spectrometry.
Kunyange bvunzo idzi dzichipa mhinduro dzakavimbika uye dzakaringana, dzinogona kutora nguva uye dzinodhura kuita.Imwe inovimbisa imwe nzira ikemikari yekuongorora makemikari inonzi pamusoro-inosimudzira Raman Kuparadzira (SERS).
Kana chiedza charova morekuru, chinopararira pamafandendi akasiyana zvichienderana nechimiro chemorekuru chemorekuru.SERS inobvumira masayendisiti kuona uye kuona huwandu hwemamorekuru akasara muyedzo sampu yakashambadzirwa pamusoro pesimbi nekuongorora yakasarudzika "zvigunwe" zvechiedza chakaparadzirwa nemamorekuru.
Mhedzisiro iyi inogona kukwidziridzwa nekugadzirisa nzvimbo yesimbi kuitira kuti ikwanise kushambadza mamorekuru, nekudaro ichivandudza kugona kwe sensor kuona kudzika kwakadzika kwemamorekuru mumuenzaniso.
Chikwata chekutsvagisa chakatanga kugadzira nzira nyowani, inotakurika yekuyedza iyo inogona kushambadza mamorekuru mumasampuli emvura vachishandisa inowanikwa 3D yakadhindwa zvinhu uye inopa chaiyo yekutanga mhedzisiro mumunda.
Kuti vaite kudaro, vakadzidza akati wandei akasiyana ezvimiro zvemasero akagadzirwa kubva musanganiswa wepolypropylene uye multi-walled kabhoni nanotubes.Zvivako izvi zvakagadzirwa nesimbi yakanyungudutswa, rudzi rwakajairika rwekudhinda kwe3D.
Uchishandisa echinyakare wet chemistry matekiniki, sirivheri negoridhe nanoparticles anoiswa pamusoro peiyo sero chimiro kugonesa yakakwidziridzwa Raman yekuparadzira maitiro.
Ivo vakaedza kugona kweakati wandei akasiyana 3D akadhindwa maseru zvimiro zvekutora uye adsorb mamorekuru eiyo organic dhayi methylene yebhuruu, uye ndokuaongorora vachishandisa inotakurika Raman spectrometer.
Zvishandiso zvakaita zvakanaka mukuyedza kwekutanga - madhizaini elatisi (periodic cellular structures) akasungwa kune sirivheri nanoparticles - zvakabva zvawedzerwa kune test strip.Zvishoma zvipembenene zvezvipembenene (Siram neparaquat) zvakawedzerwa kumvura yegungwa nemvura yakachena masampuli uye akaiswa pamatanho ebvunzo ekuongorora kweSERS.
Mvura inotorwa kubva pamuromo werwizi muAveiro, Portugal, uye kubva kumapombi ari munzvimbo imwe chete, ayo anogara achiedzwa kuti anyatso tarisa kusvibiswa kwemvura.
Vatsvagiri vakawana kuti mitsetse yacho yakakwanisa kuona mamorekuru maviri emushonga muzvikamu zvakaderera se1 micromole, iyo yakaenzana nemorekuru rimwe remushonga pamiriyoni yemamorekuru emvura.
Muzvinafundo Shanmugam Kumar, anobva kuJames Watt Chikoro cheUinjiniya paYunivhesiti yeGlasgow, mumwe wevanyori vepepa iri.Iri basa rinovaka patsvagiridzo yake mukushandiswa kweiyo 3D yekutsikisa tekinoroji kugadzira nanoengineered structural lattices ine yakasarudzika zvivakwa.
"Migumisiro yechidzidzo chekutanga ichi inokurudzira zvikuru uye inoratidza kuti zvinhu izvi zvisingadhuri zvinogona kushandiswa kugadzira ma sensors eSERS kuona mishonga yezvipembenene, kunyange pakadzika zvakanyanya."
Dr. Sara Fateixa kubva kuCICECO Aveiro Materials Institute paYunivhesiti yeAveiro, munyori wepapepa, akagadzira plasma nanoparticles inotsigira teknolojia yeSERS.Nepo bepa rino richiongorora kugona kwehurongwa hwekuona mhando dzezvinosvibisa mvura, tekinoroji inogona kushandiswa zviri nyore kutarisa kuvepo kwezvinosvibisa mvura.
Nguva yekutumira: Jan-24-2024