Malinga ndi kafukufuku watsopano wofalitsidwa mu 《 Applied Materials Today 》, Chinthu chatsopano chopangidwa kuchokera ku nanofibres ting'onoting'ono ting'onoting'ono chingalowe m'malo mwa zinthu zomwe zingakhale zovulaza zomwe zimagwiritsidwa ntchito pa matewera ndi zinthu zaukhondo masiku ano.
Olemba pepalalo, ochokera ku Indian Institute of Technology, akuti zinthu zawo zatsopanozi sizikhudza chilengedwe komanso ndizotetezeka kuposa zomwe anthu amagwiritsa ntchito masiku ano.
Pazaka makumi angapo zapitazi, matewera otayira, ma tamponi ndi zinthu zina zaukhondo zakhala zikugwiritsa ntchito utomoni wamadzimadzi (SAPs) ngati zolowetsa.Thewera wamba amatha kuyamwa madzi amthupi kuwirikiza 30 kulemera kwake.Koma zinthu sizimawonongeka: pansi pamikhalidwe yabwino, thewera limatha kutenga zaka 500 kuti liwonongeke.Ma SAP amathanso kuyambitsa mavuto azaumoyo monga toxic shock syndrome, ndipo adaletsedwa ku ma tamponi mu 1980s.
Zatsopano zopangidwa kuchokera ku electrospun cellulose acetate nanofibers zilibe zovuta izi.Mukafukufuku wawo, gulu lofufuza linasanthula zakuthupi, zomwe amakhulupirira kuti zikhoza kulowa m'malo mwa SAPs zomwe zimagwiritsidwa ntchito panopa muzinthu zaukhondo zachikazi.
"Ndikofunikira kupanga njira zina zotetezeka kuzinthu zomwe zikupezeka pamalonda, zomwe zingayambitse toxic shock syndrome ndi zizindikiro zina," Dr Chandra Sharma, wolemba pepalalo.Tikukulimbikitsani kuti muchotse zinthu zovulaza zomwe zimagwiritsidwa ntchito pamalonda omwe agulitsidwa komanso utomoni wosawonongeka wosawonongeka chifukwa chosasintha momwe zinthu zimagwirira ntchito kapenanso kuwongolera kuyamwa kwake ndi chitonthozo chamadzi.
Nanofibers ndi ulusi wautali komanso woonda wopangidwa ndi electrospinning.Chifukwa cha malo awo akuluakulu, ochita kafukufuku amakhulupirira kuti amamwa kwambiri kuposa zipangizo zomwe zilipo kale.Zomwe zimagwiritsidwa ntchito pamatamponi omwe amapezeka pamalonda amapangidwa ndi ulusi wosalala, womangika pafupifupi ma microns 30 kumbuyo.Nanofibers, mosiyana, ndi makulidwe a 150 nanometers, kuonda nthawi 200 kuposa zida zamakono.Zinthuzi zimakhala bwino kuposa zomwe zimagwiritsidwa ntchito pazinthu zomwe zilipo kale ndipo zimasiya zotsalira zochepa zikagwiritsidwa ntchito.
Zinthu za nanofiber zimakhalanso ndi porous (zoposa 90%) motsutsana ndi ochiritsira (80%), choncho zimakhala zotsekemera kwambiri.Mfundo ina ikhoza kupangidwa: pogwiritsa ntchito saline ndi kuyesa mkodzo wopangira, ulusi wa nsalu wa electrostatic ndi woyamwa kwambiri kuposa zinthu zomwe zimapezeka pamalonda.Adayesanso mitundu iwiri yazinthu za nanofibre ndi ma SAP, ndipo zotsatira zake zidawonetsa kuti nanofibre yokha idagwira ntchito bwino.
"Zotsatira zathu zikuwonetsa kuti ma electrostatic textile nanofibers amachita bwino kuposa zinthu zaukhondo zomwe zimapezeka pamalonda potengera kuyamwa kwamadzi ndi chitonthozo, ndipo timakhulupirira kuti ndiabwino kuti asinthe zinthu zovulaza zomwe zikugwiritsidwa ntchito pano," adatero Dr. Sharma."Tikuyembekeza kukhala ndi zotsatira zabwino paumoyo wa anthu komanso chilengedwe pogwiritsa ntchito njira zotetezeka komanso kutaya zinthu zaukhondo.
Nthawi yotumiza: Mar-08-2023