{"id":7838,"date":"2017-11-15T01:14:19","date_gmt":"2017-11-14T18:14:19","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7838"},"modified":"2017-12-04T01:14:52","modified_gmt":"2017-12-03T18:14:52","slug":"giay-thong-minh-dan-dien-co-kha-nang-phat-hien-ro-ri-nuoc","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/giay-thong-minh-dan-dien-co-kha-nang-phat-hien-ro-ri-nuoc\/","title":{"rendered":"Gi\u1ea5y th\u00f4ng minh d\u1eabn \u0111i\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 n\u01b0\u1edbc"},"content":{"rendered":"

\"alt\"<\/p>\n

T\u1ea1i c\u00e1c th\u00e0nh ph\u1ed1 v\u00e0 nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t tr\u00ean quy m\u00f4 l\u1edbn, hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 n\u01b0\u1edbc trong m\u1ea1ng l\u01b0\u1edbi \u0111\u01b0\u1eddng \u1ed1ng ph\u1ee9c t\u1ea1p c\u00f3 th\u1ec3 m\u1ea5t r\u1ea5t nhi\u1ec1u th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c m\u1edbi ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c, v\u00ec c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean ph\u1ea3i th\u00e1o r\u1eddi nhi\u1ec1u \u0111o\u1ea1n \u1ed1ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb h\u1ecfng h\u00f3c. Theo Hi\u1ec7p h\u1ed9i C\u00f4ng tr\u00ecnh n\u01b0\u1edbc c\u1ee7a Hoa K\u1ef3, m\u1ed7i n\u0103m tr\u00ean to\u00e0n qu\u1ed1c x\u1ea3y ra kho\u1ea3ng 250 ngh\u00ecn tr\u01b0\u1eddng h\u1ee3p r\u00f2 r\u1ec9 \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc v\u1edbi chi ph\u00ed kh\u1eafc ph\u1ee5c l\u00ean \u0111\u1ebfn g\u1ea7n 2,8 t\u1ef7 USD\/n\u0103m.<\/p>\n

Xu\u1ea5t ph\u00e1t t\u1eeb mong mu\u1ed1n \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc, nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Washington \u0111\u00e3 t\u1ea1o ra lo\u1ea1i gi\u1ea5y th\u00f4ng minh c\u00f3 kh\u1ea3 n\u0103ng \u201cc\u1ea3m nh\u1eadn\u201d s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a n\u01b0\u1edbc. Gi\u1ea5y \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u nano d\u1eabn \u0111i\u1ec7n, \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m c\u00f4ng t\u1eafc b\u1eadt ho\u1eb7c t\u1eaft \u0111\u00e8n LED ho\u1eb7c cho h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a n\u01b0\u1edbc. Nghi\u00ean c\u1ee9u m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean T\u1ea1p ch\u00ed Materials Chemistry A.<\/p>\n

Anthony Dichiara, Ph\u00f3 gi\u00e1o s\u01b0 khoa h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt t\u00e0i nguy\u00ean sinh v\u1eadt c\u00f9ng v\u1edbi m\u1ed9t nh\u00f3m sinh vi\u00ean t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Washington \u0111\u00e3 k\u1ebft h\u1ee3p th\u00e0nh c\u00f4ng v\u1eadt li\u1ec7u nano v\u00e0o gi\u1ea5y \u0111\u1ec3 gi\u1ea5y c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n v\u00e0 c\u1ea3m nh\u1eadn s\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a n\u01b0\u1edbc. T\u1eeb b\u1ed9t gi\u1ea5y, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 t\u1ea1o ra c\u00e1c s\u1ee3i g\u1ed7 v\u00e0 h\u00f2a tr\u1ed9n v\u00e0o trong v\u1eadt li\u1ec7u nano qua quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y th\u00f4ng th\u01b0\u1eddng, nh\u01b0ng tr\u01b0\u1edbc \u0111\u00e2y ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o gi\u1ea5y c\u1ea3m bi\u1ebfn.<\/p>\n

Vi\u1ec7c ph\u00e1t hi\u1ec7n gi\u1ea5y c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn th\u1ea5y s\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a n\u01b0\u1edbc l\u00e0 do s\u1ef1 c\u1ed1 ng\u1eabu nhi\u00ean. Nh\u1eefng gi\u1ecdt n\u01b0\u1edbc r\u01a1i v\u00e0o gi\u1ea5y d\u1eabn \u0111i\u1ec7n m\u00e0 nh\u00f3m nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o, \u0111\u00e3 l\u00e0m t\u1eaft \u0111\u00e8n LED. Nh\u1eefng gi\u1ecdt n\u01b0\u1edbc d\u00f9 ban \u0111\u1ea7u \u0111\u01b0\u1ee3c cho l\u00e0 l\u00e0m h\u1ecfng gi\u1ea5y, nh\u01b0ng kh\u00f4ng ph\u1ea3i v\u1eady. Qua \u0111\u00f3, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u1ea1o ra m\u1ed9t lo\u1ea1i gi\u1ea5y nh\u1ea1y c\u1ea3m v\u1edbi n\u01b0\u1edbc.<\/p>\n

Khi n\u01b0\u1edbc ti\u1ebfp x\u00fac v\u1edbi gi\u1ea5y, c\u00e1c t\u1ebf b\u00e0o s\u1ee3i c\u1ee7a gi\u1ea5y ph\u1ed3ng l\u00ean g\u1ea5p 3 l\u1ea7n so v\u1edbi k\u00edch th\u01b0\u1edbc ban \u0111\u1ea7u. \u0110i\u1ec1u \u0111\u00f3 l\u00e0m thay \u0111\u1ed5i v\u1eadt li\u1ec7u nano d\u1eabn \u0111i\u1ec7n b\u00ean trong gi\u1ea5y, g\u00e2y gi\u00e1n \u0111o\u1ea1n c\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n, l\u00e0m t\u1eaft \u0111\u00e8n LED. Qu\u00e1 tr\u00ecnh n\u00e0y ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c v\u00e0 khi gi\u1ea5y kh\u00f4, m\u1ea1ng l\u01b0\u1edbi \u0111i\u1ec7n \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c n\u00ean gi\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u l\u1ea7n.<\/p>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u d\u1ef1 b\u00e1o v\u1ec1 \u1ee9ng d\u1ee5ng, trong \u0111\u00f3 gi\u1ea5y d\u1eabn \u0111i\u1ec7n g\u1eafn pin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t xung quanh \u0111\u01b0\u1eddng \u1ed1ng ho\u1eb7c d\u01b0\u1edbi m\u1ed9t m\u1ea1ng l\u01b0\u1edbi \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc \u0111an xen ph\u1ee9c t\u1ea1p trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t. N\u1ebfu \u0111\u01b0\u1eddng \u1ed1ng b\u1ecb r\u00f2 r\u1ec9, gi\u1ea5y s\u1ebd c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a n\u01b0\u1edbc, sau \u0111\u00f3 truy\u1ec1n t\u00edn hi\u1ec7u \u0111i\u1ec7n b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c kh\u00f4ng d\u00e2y \u0111\u1ebfn trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 nhanh ch\u00f3ng \u0111\u1ecbnh v\u1ecb v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. Ngo\u00e0i ra, gi\u1ea5y r\u1ea5t nh\u1ea1y n\u00ean c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra d\u1ea5u v\u1ebft c\u1ee7a n\u01b0\u1edbc trong h\u1ed7n h\u1ee3p ch\u1ea5t l\u1ecfng kh\u00e1c. Kh\u1ea3 n\u0103ng ph\u00e2n bi\u1ec7t n\u01b0\u1edbc v\u1edbi c\u00e1c ph\u00e2n t\u1eed kh\u00e1c \u0111\u1eb7c bi\u1ec7t c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ed1i v\u1edbi c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7u kh\u00ed v\u00e0 nhi\u00ean li\u1ec7u sinh h\u1ecdc, n\u01a1i n\u01b0\u1edbc \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ea1p ch\u1ea5t.<\/p>\n

V\u1eadt li\u1ec7u nano d\u00f9ng \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i gi\u1ea5y th\u00f4ng minh \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u00e0o trong c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y th\u00f4ng th\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb cacbon d\u1eabn \u0111i\u1ec7n t\u1ed1t. V\u00ec cacbon \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong t\u1ea5t c\u1ea3 c\u00e1c sinh v\u1eadt s\u1ed1ng, do \u0111\u00f3, g\u1ea7n nh\u01b0 t\u1ea5t c\u1ea3 v\u1eadt li\u1ec7u t\u1ef1 nhi\u00ean \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed1t ch\u00e1y \u0111\u1ec3 s\u1ea3n xu\u1ea5t than v\u00e0 sau \u0111\u00f3, chi\u1ebft xu\u1ea5t c\u00e1c nguy\u00ean t\u1eed cacbon \u0111\u1ec3 t\u1ed5ng h\u1ee3p v\u1eadt li\u1ec7u. Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1eed nghi\u1ec7m ch\u1ebf t\u1ea1o v\u1eadt li\u1ec7u nano t\u1eeb v\u1ecf chu\u1ed1i, v\u1ecf c\u00e2y, th\u1eadm ch\u00ed l\u00e0 ph\u00e2n \u0111\u1ed9ng v\u1eadt. Ngo\u00e0i ra, h\u1ecd c\u00f2n n\u1ed7 l\u1ef1c ch\u1ebf t\u1ea1o v\u1eadt li\u1ec7u nano t\u1eeb nh\u1eefng m\u1ea9u g\u1ed7 \u0111\u1ec3 ch\u1ee9ng minh to\u00e0n b\u1ed9 quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh v\u1edbi v\u1eadt li\u1ec7u r\u1ebb ti\u1ec1n.<\/p>\n

Nh\u00f3m nghi\u00ean c\u1ee9u hy v\u1ecdng s\u1ebd th\u1eed nghi\u1ec7m quy tr\u00ecnh t\u1ea1i c\u00e1c m\u00e1y s\u1ea3n xu\u1ea5t gi\u1ea5y c\u00f4ng nghi\u1ec7p, c\u1ea7n nhi\u1ec1u v\u1eadt li\u1ec7u nano v\u00e0 b\u1ed9t gi\u1ea5y.<\/p>\n

\u00a0(NASATI)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

T\u1ea1i c\u00e1c th\u00e0nh ph\u1ed1 v\u00e0 nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t tr\u00ean quy m\u00f4 l\u1edbn, hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 n\u01b0\u1edbc trong m\u1ea1ng l\u01b0\u1edbi \u0111\u01b0\u1eddng \u1ed1ng ph\u1ee9c t\u1ea1p c\u00f3 th\u1ec3 m\u1ea5t r\u1ea5t nhi\u1ec1u th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c m\u1edbi ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c, v\u00ec c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean ph\u1ea3i th\u00e1o r\u1eddi nhi\u1ec1u \u0111o\u1ea1n \u1ed1ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb h\u1ecfng h\u00f3c. […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7838","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7838","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7838"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7838\/revisions"}],"predecessor-version":[{"id":7839,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7838\/revisions\/7839"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}