{"id":5779,"date":"2016-08-18T18:17:53","date_gmt":"2016-08-18T11:17:53","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5779"},"modified":"2017-10-03T09:43:08","modified_gmt":"2017-10-03T02:43:08","slug":"thiet-bi-sieu-nho-giup-tieu-diet-99-vi-khuan-trong-nuoc-voi-thoi-gian-chi-20-phut","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/thiet-bi-sieu-nho-giup-tieu-diet-99-vi-khuan-trong-nuoc-voi-thoi-gian-chi-20-phut\/","title":{"rendered":"Thi\u1ebft b\u1ecb si\u00eau nh\u1ecf gi\u00fap ti\u00eau di\u1ec7t 99% vi khu\u1ea9n trong n\u01b0\u1edbc v\u1edbi th\u1eddi gian ch\u1ec9 20 ph\u00fat"},"content":{"rendered":"

Thay v\u00ec s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p, nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n, m\u1eafc ti\u1ec1n th\u00ec b\u00e2y gi\u1edd v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb c\u1ee1 con tem l\u00e0 ch\u00fang ta \u0111\u00e3 c\u00f3 th\u1ec3 l\u00e0m s\u1ea1ch n\u01b0\u1edbc trong th\u1eddi gian c\u1ef1c k\u1ef3 nhanh. Ph\u00e1t tri\u1ec3n b\u1edfi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu\u1ed9c \u0110\u1ea1i h\u1ecdc Stanford v\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m qu\u1ed1c gia M\u1ef9 SLAC, thi\u1ebft b\u1ecb n\u00e0y s\u1ebd s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi \u0111\u1ec3 ti\u00eau di\u1ec7t 99,99% vi khu\u1ea9n trong n\u01b0\u1edbc ch\u1ec9 trong v\u00f2ng 20 ph\u00fat. C\u00e1ch s\u1eed d\u1ee5ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 th\u1ea3 n\u00f3 v\u00e0o b\u1ec3 ch\u1ee9a n\u01b0\u1edbc m\u00e0 b\u1ea1n mu\u1ed1n l\u00e0m s\u1ea1ch v\u00e0 ch\u1edd n\u00f3 di\u1ec7t khu\u1ea9n.<\/strong><\/p>\n

V\u1edbi h\u00ecnh d\u1ea1ng nh\u01b0 m\u1ed9t mi\u1ebfng th\u1ee7y tinh vu\u00f4ng v\u1ee9c m\u00e0u \u0111en, thi\u1ebft b\u1ecb n\u00e0y l\u00e0m di\u1ec7t khu\u1ea9n trong n\u01b0\u1edbc b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u1ea7n kh\u1ea3 ki\u1ebfn c\u1ee7a quang ph\u1ed5 \u00e1nh s\u00e1ng M\u1eb7t tr\u1eddi v\u1ed1n c\u00f3 ch\u1ee9a 50% n\u0103ng l\u01b0\u1ee3ng c\u1ee7a M\u1eb7t Tr\u1eddi. L\u00fac b\u00ecnh th\u01b0\u1eddng, khi \u0111\u1eb7t m\u1ed9t chai n\u01b0\u1edbc d\u01b0\u1edbi \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi th\u00ec m\u1ed9t ph\u1ea7n vi khu\u1ea9n c\u0169ng s\u1ebd b\u1ecb ti\u00eau di\u1ec7t nh\u1edd v\u00e0o l\u01b0\u1ee3ng tia UV v\u1ed1n chi\u1ebfm 4% n\u0103ng l\u01b0\u1ee3ng c\u1ee7a \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi.<\/p>\n

\u0110\u1ec3 th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 b\u1ecf n\u00f3 v\u00e0o 25 ml n\u01b0\u1edbc v\u1edbi n\u1ed3ng \u0111\u1ed9 vi khu\u1ea9n l\u00e0 1 tri\u1ec7u\/ml. K\u1ebft qu\u1ea3 sau khi \u0111\u1eb7t n\u00f3 d\u01b0\u1edbi \u00e1nh s\u00e1ng trong 20 ph\u00fat, g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 vi khu\u1ea9n \u0111\u00e3 b\u1ecb ti\u00eau di\u1ec7t. V\u00e0 \u0111\u00e1ng ch\u00fa \u00fd h\u01a1n, th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng kh\u1ea3 ki\u1ebfn m\u00e0 kh\u00f4ng c\u00f3 UV, \u0111\u1ed3ng th\u1eddi l\u00e0 nh\u00e2n t\u1ea1o trong ph\u00f2ng th\u00ed nghi\u1ec7m, c\u00f2n nh\u00f3m nghi\u00ean c\u1ee9u cho r\u1eb1ng khi s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi th\u1eadt th\u00ec qu\u00e1 tr\u00ecnh n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c \u0111\u1ea9y nhanh h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n

Gi\u1ea3i th\u00edch chi ti\u1ebft h\u01a1n v\u1ec1 thi\u1ebft b\u1ecb “vi di\u1ec7u” n\u00e0y, nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft h\u1ecd \u0111\u00e3 t\u1ea1o s\u1eed d\u1ee5ng m\u1ed9t l\u1edbp molypden disulfua – lo\u1ea1i ch\u1ea5t b\u00f4i tr\u01a1n kh\u00f4 th\u01b0\u1eddng d\u00f9ng trong c\u00f4ng nghi\u1ec7p. Khi l\u1edbp h\u00f3a ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c ti\u1ebfp x\u00fac v\u1edbi \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi, r\u1ea5t nhi\u1ec1u electron b\u00ean trong s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng ra, h\u00ecnh th\u00e0nh n\u00ean c\u00e1c l\u1ed7 trong c\u1ea5u tr\u00fac ph\u00e2n t\u1eed. C\u1ea3 c\u00e1c electron v\u00e0 nh\u1eefng l\u1ed7 \u0111\u1ec1u t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc x\u1ea3y ra. \u0110\u1ed3ng th\u1eddi, thi\u1ebft b\u1ecb c\u00f2n c\u00f3 m\u1ed9t l\u1edbp \u0111\u1ed3ng c\u00f3 nhi\u1ec7m v\u1ee5 nh\u01b0 x\u00fac t\u00e1c nh\u1eb1m k\u00edch ho\u1ea1t ph\u1ea3n \u1ee9ng t\u1ea1o ra s\u1ea3n ph\u1ea9m hydrogen peroxide (th\u01b0\u1eddng g\u1ecdi l\u00e0 oxy gi\u00e0) – m\u1ed9t lo\u1ea1i ch\u1ea5t di\u1ec7t khu\u1ea9n.<\/p>\n

M\u1eb7c d\u00f9 hi\u1ec7u su\u1ea5t ti\u00eau di\u1ec7t vi khu\u1ea9n c\u1ee7a thi\u1ebft v\u1ecb n\u00f3i tr\u00ean l\u00e0 kh\u00e1 cao, tuy nhi\u00ean nh\u00f3m nghi\u00ean c\u1ee9u c\u1ea3nh b\u00e1o r\u1eb1ng n\u00f3 v\u1eabn chauw c\u00f3 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf nh\u1eefng lo\u1ea1i h\u00f3a ch\u1ea5t \u00f4 nhi\u1ec5m trong n\u01b0\u1edbc. M\u1eb7t kh\u00e1c, nh\u00f3m v\u1eabn ph\u1ea3i ti\u1ebfn h\u00e0nh th\u00eam c\u00e1c x\u00e9t nghi\u1ec7m nh\u1eb1m c\u1ee5 th\u1ec3 h\u00f3a t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a thi\u1ebft b\u1ecb b\u1edfi hi\u1ec7n nay, h\u1ecd ch\u1ec9 m\u1edbi x\u00e1c t\u00edn l\u00e0 ti\u00eau di\u1ec7t \u0111\u01b0\u1ee3c 3 lo\u1ea1i vi khu\u1ea9n. N\u1ebfu c\u00f3 th\u1ec3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c t\u00ednh hi\u1ec7u qu\u1ea3 trong vi\u1ec7c ti\u00eau di\u1ec7t nhi\u1ec1u lo\u1ea1i vi khu\u1ea9n kh\u00e1c nhau, thi\u1ebft b\u1ecb n\u00e0y h\u1ee9a h\u1eb9n s\u1ebd l\u00e0 gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n, r\u1ebb ti\u1ec1n gi\u00fap cung c\u1ea5p ngu\u1ed3n n\u01b0\u1edbc s\u1ea1ch, c\u1ee9u s\u1ed1ng h\u00e0ng t\u1ef7 ng\u01b0\u1eddi tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi.<\/p>\n

Tham kh\u1ea3o SLAC\u200b<\/em><\/strong><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Thay v\u00ec s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p, nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n, m\u1eafc ti\u1ec1n th\u00ec b\u00e2y gi\u1edd v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb c\u1ee1 con tem l\u00e0 ch\u00fang ta \u0111\u00e3 c\u00f3 th\u1ec3 l\u00e0m s\u1ea1ch n\u01b0\u1edbc trong th\u1eddi gian c\u1ef1c k\u1ef3 nhanh. Ph\u00e1t tri\u1ec3n b\u1edfi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu\u1ed9c \u0110\u1ea1i h\u1ecdc Stanford v\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m qu\u1ed1c […]<\/p>\n","protected":false},"author":17,"featured_media":6382,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5779","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\/5779","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=5779"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5779\/revisions"}],"predecessor-version":[{"id":6394,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5779\/revisions\/6394"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6382"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}