{"id":4651,"date":"2015-12-10T14:16:28","date_gmt":"2015-12-10T07:16:28","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4651"},"modified":"2017-10-02T09:57:23","modified_gmt":"2017-10-02T02:57:23","slug":"dai-hoc-pennsylvania-tao-ra-vat-lieu-mong-hon-to-giay-1000-lan-nhung-sieu-ben","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/dai-hoc-pennsylvania-tao-ra-vat-lieu-mong-hon-to-giay-1000-lan-nhung-sieu-ben\/","title":{"rendered":"\u0110\u1ea1i h\u1ecdc Pennsylvania t\u1ea1o ra v\u1eadt li\u1ec7u m\u1ecfng h\u01a1n t\u1edd gi\u1ea5y 1000 l\u1ea7n nh\u01b0ng si\u00eau b\u1ec1n"},"content":{"rendered":"<p><strong>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0111\u1ea1i h\u1ecdc Pennsylvania \u0111\u00e3 v\u1eeba t\u1ea1o ra m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u si\u00eau m\u1ecfng, si\u00eau nh\u1eb9 v\u00e0 si\u00eau b\u1ec1n. \u0110\u00e2y l\u00e0 m\u1ed9t t\u1ea5m v\u1eadt li\u1ec7u t\u1ec9 l\u1ec7 nano, m\u1ecfng h\u01a1n 1000 l\u1ea7n so v\u1edbi t\u1edd gi\u1ea5y nh\u01b0ng c\u00f3 th\u1ec3 duy tr\u00ec h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u sau khi b\u1ecb u\u1ed1n cong, v\u1eb7n xo\u1eafn b\u1edfi ngo\u1ea1i l\u1ef1c.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5122\" src=\"http:\/\/ttud.com.vn\/wp-content\/uploads\/2015\/12\/10122015142010-duytran3567371_CV.jpg\" alt=\"\" width=\"280\" height=\"186\" \/><\/p>\n<p>M\u1ed9t v\u1eadt li\u1ec7u c\u00f3 \u0111\u1eb7c t\u00ednh t\u01b0\u01a1ng t\u1ef1 m\u00e0 ch\u00fang ta \u0111\u1ec1u \u0111\u00e3 bi\u1ebft \u0111\u1ebfn l\u00e0 graphene. N\u00f3 c\u00f3 \u0111\u1ed9 m\u1ecfng ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u00e2n t\u1eed, \u0111\u1ed9 c\u1ee9ng \u0111\u00e1ng kinh ng\u1ea1c v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n, d\u1eabn nhi\u1ec7t r\u1ea5t t\u1ed1t. Tuy nhi\u00ean, graphene kh\u00f4ng c\u00f3 h\u00ecnh d\u1ea1ng nguy\u00ean th\u1ee7y v\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u 2 chi\u1ec1u nh\u01b0 graphene c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t th\u00e0nh ph\u1ea7n h\u1ed7 tr\u1ee3 ngo\u1ea1i vi ch\u1eb3ng h\u1ea1n m\u1ed9t t\u1ea5m n\u1ec1n hay m\u1ed9t b\u1ed9 khung \u0111\u1ec3 ng\u0103n graphene t\u1ef1 v\u1eb7n xo\u1eafn khi\u1ebfn n\u00f3 kh\u00f4ng th\u1ec3 d\u00f9ng \u0111\u01b0\u1ee3c. V\u00e0 d\u0129 nhi\u00ean khi \u0111\u00e3 th\u00eam c\u00e1c th\u00e0nh ph\u1ea7n gia c\u1ed1 n\u00e0y th\u00ec graphene s\u1ebd n\u1eb7ng h\u01a1n, l\u00e0m m\u1ea5t \u0111i t\u00ednh ch\u1ea5t si\u00eau nh\u1eb9 c\u1ee7a n\u00f3.<\/p>\n<p>v\u1eadt_li\u1ec7u_m\u1ecfng_b\u1ec1n_01. \u200b<\/p>\n<p>Do \u0111\u00f3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0111\u1ea1i h\u1ecdc Pennsylvania \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 duy tr\u00ec h\u00ecnh d\u1ea1ng nguy\u00ean th\u1ee7y c\u1ee7a n\u00f3 sau khi b\u1ecb l\u00e0m cong hay b\u00f3p m\u00e9o b\u1eb1ng b\u00e0n tay m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn c\u00e1c k\u1ebft c\u1ea5u h\u1ed7 tr\u1ee3. H\u01b0\u1edbng ti\u1ebfp c\u1eadn c\u1ee7a h\u1ecd l\u00e0 thi\u1ebft k\u1ebf t\u1ea5m n\u1ec1n v\u1eadt li\u1ec7u v\u1edbi h\u00ecnh d\u1ea1ng g\u1ee3n s\u00f3ng v\u1edbi c\u00e1c l\u1ed7 r\u1ed7ng gi\u1ed1ng t\u1ed5 ong \u0111\u1ec3 t\u1ea1o n\u00ean c\u1ea5u tr\u00fac 3 chi\u1ec1u cho v\u1eadt li\u1ec7u \u1edf t\u1ec9 l\u1ec7 nano.<\/p>\n<p>T\u1ea5m n\u1ec1n n\u00e0y \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u00f4m \u00f4-x\u00edt l\u1eafng \u0111\u1ecdng v\u1edbi ch\u1ec9 1 l\u1edbp \u0111\u01a1n nguy\u00ean t\u1eed khi\u1ebfn v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecfng t\u1eeb 25 \u0111\u1ebfn 100 nm nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n c\u1ef1c cao. Igor Bargatin &#8211; l\u00e3nh \u0111\u1ea1o nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft: &#8220;Nh\u00f4m oxit tr\u00ean th\u1ef1c t\u1ebf l\u00e0 m\u1ed9t lo\u1ea1i g\u1ed1m &#8211; m\u1ed9t th\u1ee9 v\u1ec1 b\u1ea3n ch\u1ea5t r\u1ea5t d\u1ec5 g\u00e3y v\u1ee1. Tuy nhi\u00ean khi \u0111\u01b0\u1ee3c l\u1eafng \u0111\u1ecdng tr\u00ean t\u1ea5m n\u1ec1n c\u1ea5u tr\u00fac \u0111\u1eb7c bi\u1ec7t, v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u sau khi b\u1ecb u\u1ed1n cong, v\u1eb7n xo\u1eafn, m\u00e9o m\u00f3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ed9t t\u1ea5m nh\u1ef1a.&#8221;<\/p>\n<p>V\u1eadt li\u1ec7u m\u1edbi ti\u1ec1m n\u0103ng c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t lo\u1ea1t nh\u1eefng h\u1ea1n ch\u1ebf trong vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u d\u1ea1ng t\u1ea5m m\u1ecfng, ph\u1eb3ng, \u00edt b\u1ec1n, th\u01b0\u1eddng c\u00f3 xu h\u01b0\u1edbng bi\u1ebfn d\u1ea1ng v\u00e0 b\u00e1m d\u00ednh v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t r\u1ea5t kh\u00f3 \u0111\u1ec3 g\u1ee1 b\u1ecf. Ngo\u00e0i ra, nh\u1eefng v\u1eadt li\u1ec7u th\u00f4ng th\u01b0\u1eddng c\u0169ng d\u1ec5 b\u1ecb x\u00e9 to\u1ea1c hay c\u00e1c v\u1ebft n\u1ee9t xu\u1ea5t hi\u1ec7n d\u1ecdc theo v\u1eadt li\u1ec7u. C\u1ea5u tr\u00fac t\u1ed5 ong tr\u00ean v\u1eadt li\u1ec7u m\u1edbi \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u1ebfu m\u1ed9t v\u1ebft n\u1ee9t xu\u1ea5t hi\u1ec7n tr\u00ean t\u1ea5m n\u1ec1n nh\u00f4m oxit, n\u00f3 ch\u1ec9 b\u1ecb gi\u1edbi h\u1ea1n trong m\u1ed9t v\u00f9ng nh\u1ecf b\u1edfi c\u00e1c v\u00e1ch ng\u0103n d\u1ecdc.<\/p>\n<p>V\u1edbi ph\u00e1t minh n\u00f3i tr\u00ean, nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i Pennsylvania \u0111\u00e3 gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u1ef9 thu\u1eadt c\u1ea5u tr\u00fac t\u1ea1i nh\u1eefng l\u0129nh v\u1ef1c n\u01a1i tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 ch\u00eca kh\u00f3a c\u1ee7a m\u1ecdi th\u1ee9, ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u00e0nh h\u00e0ng kh\u00f4ng. M\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 l\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 d\u00f9ng ch\u1ebf t\u1ea1o \u0111\u00f4i c\u00e1nh cho nh\u1eefng con robot bay m\u00f4 ph\u1ecfng c\u00f4n tr\u00f9ng.<\/p>\n<p>Bargatin n\u00f3i: &#8220;C\u00e1nh c\u1ee7a c\u00f4n tr\u00f9ng ch\u1ec9 m\u1ecfng v\u00e0i micron v\u00e0 kh\u00f4ng th\u1ec3 m\u1ecfng h\u01a1n \u0111\u01b0\u1ee3c n\u1eefa b\u1edfi ch\u00fang \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng t\u1ebf b\u00e0o. V\u1eadt li\u1ec7u l\u00e0m c\u00e1nh m\u1ecfng nh\u1ea5t \u0111\u01b0\u1ee3c con ng\u01b0\u1eddi t\u1ea1o ra theo t\u00f4i bi\u1ebft l\u00e0 Mylar &#8211; ch\u1ebf t\u1ea1o b\u1eb1ng c\u00e1ch l\u1eafng \u0111\u1ecdng m\u1ed9t t\u1ea5m phim Mylar l\u00ean m\u1ed9t khung s\u01b0\u1eddn v\u1edbi \u0111\u1ed9 d\u00e0y kho\u1ea3ng 1\/2 micron. T\u1ea5m n\u1ec1n c\u1ee7a ch\u00fang t\u00f4i m\u1ecfng h\u01a1n 10 l\u1ea7n v\u00e0 kh\u00f4ng c\u1ea7n khung s\u01b0\u1eddn. K\u1ebft qu\u1ea3 l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt li\u1ec7u nh\u1eb9 h\u01a1n 1\/10 g tr\u00ean m\u1ed7i m2.&#8221;<\/p>\n<p style=\"text-align: right;\"><strong><em>Theo: Gizmag\u200b<\/em><\/strong><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0111\u1ea1i h\u1ecdc Pennsylvania \u0111\u00e3 v\u1eeba t\u1ea1o ra m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u si\u00eau m\u1ecfng, si\u00eau nh\u1eb9 v\u00e0 si\u00eau b\u1ec1n. \u0110\u00e2y l\u00e0 m\u1ed9t t\u1ea5m v\u1eadt li\u1ec7u t\u1ec9 l\u1ec7 nano, m\u1ecfng h\u01a1n 1000 l\u1ea7n so v\u1edbi t\u1edd gi\u1ea5y nh\u01b0ng c\u00f3 th\u1ec3 duy tr\u00ec h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u sau khi b\u1ecb u\u1ed1n cong, v\u1eb7n [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":5122,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4651"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4651\/revisions"}],"predecessor-version":[{"id":5123,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4651\/revisions\/5123"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/5122"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}