{"id":26948,"date":"2012-04-22T18:10:31","date_gmt":"2012-04-22T15:10:31","guid":{"rendered":"http:\/\/www.fyysika.ee\/uudised\/?p=26948"},"modified":"2012-04-22T18:10:31","modified_gmt":"2012-04-22T15:10:31","slug":"teadlased-valmistasid-nanoosakeste-abil-veekindla-ja-magnetilise-paberi","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=26948","title":{"rendered":"Teadlased valmistasid nanoosakeste abil veekindla ja magnetilise paberi"},"content":{"rendered":"<p><strong>Itaalia Tehnoloogiainstituudi teadlased, keda juhtis Roberto Cingolani, leiutasid viisi kuidas \u00fchendada tavalise paberi tselluloosikiud nanoosakestega, saades tulemuseks uued omadused. Selline paber on n\u00e4iteks veekindel, magnetiline, helendav v\u00f5i baktereid eemaldav.<\/strong><\/p>\n<p><a href=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2012\/04\/GA.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-26949\" title=\"GA\" src=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2012\/04\/GA.gif\" alt=\"\" width=\"378\" height=\"202\" srcset=\"https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/04\/GA.gif 378w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/04\/GA-300x160.gif 300w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/04\/GA-250x133.gif 250w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><\/a>Antud protsessis segatakse \u00fcliparamagnetilised mangaanferriidi kolloid-nanoosakesed pabertooteid moodustavate tselluloosikiudude \u00fcksikmolekulide v\u00f5i monomeridega, saade vedelas lahuses tulemuseks pol\u00fcmeerid. Protsessis moodustub iga kiu \u00fcmber \u00f5huke kest. Tulemuseks on lahus, mis annab paberile kandes tulemuseks veekindla ja magnetilise toote. T\u00f6\u00f6r\u00fchm leidis, et protsessis kasutatavate nanoosakeste arvu muutes saab tekitada soovitud magnetomadused, kirjutab <a href=\"http:\/\/phys.org\/news\/2012-04-team-nanoparticles-paper-waterproof-magnetic.html\">Physorg.com<\/a>.<\/p>\n<p>Muutes lahust moodustavaid nanoosakesi valmistasid teadlased ka teiste omadustega paberit. H\u00f5beda nanoosakesed andsid n\u00e4iteks tulemuseks bakterite suhtes resistantse paberi. Teiste ainete abil saab aga valmistada n\u00e4iteks helendavat paberit. Lisaks on v\u00f5imalus valmistada nanoosakeste segu, et mitut omadust korraga avaldada.<\/p>\n<p>Kui veekindla paberi eelised on ilmselged, siis v\u00f5iks magnetilist paberit t\u00f6\u00f6r\u00fchma s\u00f5nul kasutada n\u00e4iteks turvarakendustes, selle hulgas ka raha valmistamisel. Antibakteriaalsete omadustega paberit saaks kasutada meditsiinis v\u00f5i toiduvalmistamisel. Ka helendavat paberit saaks kasutada turvarakendustes, kuid lisaks veel kuulutuste, pimedas loetavate dokumentide ning vaid pimedas n\u00e4htavate varjatud tekstide printimisel.<\/p>\n<p>Teadlased r\u00f5hutasid, et kuna paberit kui tervikut ei kaeta, siis on sel alles k\u00f5ik oma tavap\u00e4rased omadused. Seega saab sellele j\u00e4tkuvalt tavalise kirjutusvahendi v\u00f5i printeriga kirjutada ning printida. Lisaks saab teadlaste valmistatud lahuse kanda juba olemasolevale paberile, v\u00f5imaldades kasutajal muuta juba tr\u00fckitud paberite, ajakirjade, dokumentide v\u00f5i iga teise pabertoote omadusi.<\/p>\n<p><a href=\"http:\/\/phys.org\/news\/2012-04-team-nanoparticles-paper-waterproof-magnetic.html\">Allikas<\/a><\/p>\n<p>Teadusartikkel: &#8220;<a href=\"http:\/\/pubs.rsc.org\/en\/Content\/ArticleLanding\/2012\/JM\/c1jm14755b\">Superparamagnetic cellulose fiber networks\u00a0<em>via<\/em> nanocomposite functionalization<\/a>&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Itaalia Tehnoloogiainstituudi teadlased, keda juhtis Roberto Cingolani, leiutasid viisi kuidas \u00fchendada tavalise paberi tselluloosikiud nanoosakestega, saades tulemuseks uued omadused. Selline paber on n\u00e4iteks veekindel, magnetiline, helendav v\u00f5i baktereid eemaldav. Antud protsessis segatakse \u00fcliparamagnetilised mangaanferriidi kolloid-nanoosakesed pabertooteid moodustavate tselluloosikiudude \u00fcksikmolekulide v\u00f5i monomeridega, saade vedelas lahuses tulemuseks pol\u00fcmeerid. Protsessis moodustub iga kiu \u00fcmber \u00f5huke kest. Tulemuseks on [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":26949,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[31,16],"tags":[110,147],"class_list":{"0":"post-26948","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-rakenduslik-teadus","8":"category-teadusuudis","9":"tag-materjal","10":"tag-nanotehnoloogia","11":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/26948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26948"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/26948\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/26949"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}