Sida laga soo xigtay cilmi-baadhis cusub oo lagu daabacay 《Alaabada Maanta》, Walax cusub oo laga sameeyay nanofibres yar-yar ayaa bedeli karta maaddooyinka khatarta ah ee loo isticmaalo xafaayadda iyo alaabta nadaafadda maanta.
Qorayaasha wargeyska, oo ka socda Machadka Teknolojiyadda Hindiya, ayaa sheegay in alaabtooda cusub ay saameyn yar ku leedahay deegaanka kana ammaan badan tahay tan ay dadku isticmaalaan maanta.
Dhawrkii sano ee la soo dhaafay, xafaayadaha la tuuri karo, tampons iyo alaabada kale ee nadaafadda ayaa isticmaalay xafaayadaha nuugaya (SAPs) sida nuugayaasha. Walxahani waxay nuugi karaan dhowr jeer miisaankooda dareeraha;Celcelis ahaan xafaayadda ayaa nuugi karta 30 jeer miisaankeeda dareeraha jidhka.Laakiin maaddadu ma biodegrade: xaaladaha ku habboon, xafaayadda waxay qaadan kartaa ilaa 500 oo sano si loo yareeyo.SAPs waxay sidoo kale sababi karaan dhibaatooyin caafimaad sida sunta shoogga syndrome-ka, waxaana laga mamnuucay tampons 198-tii.
Qalab cusub oo laga sameeyay electrospun cellulose acetate nanofibers ma laha mid ka mid ah cilladahan. Daraasaddooda, kooxda cilmi-baaristu waxay falanqeeyeen walxaha, kuwaas oo ay aaminsan yihiin inay bedeli karaan SAP-yada hadda loo isticmaalo alaabta nadaafadda haweenka.
"Waa muhiim in la horumariyo beddelaad badbaado leh oo lagu beddelan karo alaabooyinka ganacsi ahaan loo heli karo, kuwaas oo sababi kara xanuunka shoogga sunta ah iyo calaamado kale," Dr Chandra Sharma, oo ah qoraaga u dhiganta warqadda.Waxaan soo jeedinaynaa in la baabi'iyo walxaha waxyeelada leh ee loo isticmaalo badeecadaha hadda jira ee ganacsiga la heli karo iyo resins superabsorbent-ka ee aan biodegradable ka iman karin iyadoo lagu salaynayo in aan la beddelin waxqabadka badeecada ama xitaa hagaajinta nuugista biyaha iyo raaxada.
Nanofibers waa fiilooyinka dhaadheer oo dhuuban oo ay soo saarto koronto.Sababtoo ah aagga weyn ee dusha sare, cilmi-baarayaashu waxay aaminsan yihiin inay aad uga nuugaan qalabka jira.Walaxda loo isticmaalo tampons-ka ganacsi ahaan loo heli karo waxa ay ka samaysan tahay fiilo fidsan oo xidhan oo qiyaastii 30 microns gadaashiisa ah.Nanofibers, marka la barbardhigo, waa 150 nanometers dhumucdiisuna, 200 jeer ka khafiifsan yihiin alaabta hadda.Maaddadu way ka raaxo badan tahay kuwa loo isticmaalo alaabooyinka jira waxayna ka baxaan hadhaaga yar ka dib isticmaalka.
Maaddada nanofiber sidoo kale waa dalool (in ka badan 90%) marka loo eego kuwa caadiga ah (80%), sidaa darteed aad ayey u nuugtaa.Hal dhibic oo kale ayaa la samayn karaa: iyadoo la isticmaalayo tijaabooyinka kaadida milix iyo synthetic, fiilooyinka korantada ee dharka ayaa aad uga nuugaya badeecadaha ganacsi ahaan la heli karo.Waxay sidoo kale tijaabiyeen laba nooc oo walxaha nanofibre ah oo leh SAPs, natiijadu waxay muujisay in nanofibre kaligiis si fiican u shaqeeyay.
"Natiijooyinkayagu waxay muujinayaan in nanofiber-yada dunta elektrostatic ay ka shaqeeyaan si ka wanaagsan wax soo saarka nadaafadda ee ganacsi ahaan loo heli karo marka loo eego nuugista biyaha iyo raaxada, waxaana aaminsanahay inay yihiin musharax wanaagsan oo bedeli kara walxaha waxyeelada leh ee hadda la isticmaalo," Dr. Sharma ayaa yidhi."Waxaan rajeyneynaa inaan saameyn togan ku yeelano caafimaadka bini'aadamka iyo deegaanka iyada oo loo marayo isticmaalka badbaadada leh iyo asturidda alaabta nadaafadda.
Waqtiga boostada: Mar-08-2023