{"id":872,"date":"2014-03-27T14:01:00","date_gmt":"2014-03-27T07:01:00","guid":{"rendered":"https:\/\/beta.cbbiotec.vn\/?p=872"},"modified":"2025-07-01T13:16:15","modified_gmt":"2025-07-01T06:16:15","slug":"day-nano-vi-khuan-khong-nhu-chung-ta-nghi","status":"publish","type":"post","link":"https:\/\/cbbiotec.vn\/en\/day-nano-vi-khuan-khong-nhu-chung-ta-nghi\/","title":{"rendered":"D\u00e2y nano vi khu\u1ea9n: kh\u00f4ng nh\u01b0 ch\u00fang ta ngh\u0129"},"content":{"rendered":"

Trong 10 n\u0103m qua, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 b\u1ecb cu\u1ed1n h\u00fat b\u1edfi m\u1ed9t lo\u1ea1i “vi khu\u1ea9n \u0111i\u1ec7n” b\u1eafn ra nh\u1eefng tua d\u00e0i nh\u01b0 d\u00e2y \u0111i\u1ec7n, s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 ti\u1ebfp n\u0103ng l\u01b0\u1ee3ng cho b\u1ea3n th\u00e2n v\u00e0 truy\u1ec1n \u0111i\u1ec7n cho nhi\u1ec1u lo\u1ea1i b\u1ec1 m\u1eb7t r\u1eafn.<\/p>\n\n\n\n

M\u1edbi \u0111\u00e2y, m\u1ed9t nh\u00f3m nghi\u00ean c\u1ee9u do c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Colombia (Hoa K\u1ef3) \u0111\u00e3 nghi\u00ean c\u1ee9u c\u00e1c d\u00e2y nano vi khu\u1ea9n, ph\u00e1t hi\u1ec7n ra r\u1eb1ng nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c ti\u00eam mao, nh\u01b0 suy ngh\u0129 tr\u01b0\u1edbc \u0111\u00e2y, m\u00e0 l\u00e0 ph\u1ea7n m\u1edf r\u1ed9ng c\u1ee7a m\u00e0ng ngo\u00e0i c\u1ee7a vi khu\u1ea9n \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c protein truy\u1ec1n \u0111i\u1ec7n t\u1eed, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c “cytochrome”.<\/p>\n\n\n\n

\"\"
\u1ea2nh minh h\u1ecda cho “Vi khu\u1ea9n \u0111i\u1ec7n”<\/figcaption><\/figure>\n\n\n\n

C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1eeb l\u00e2u \u0111\u00e3 nghi ng\u1edd r\u1eb1ng c\u00e1c d\u00e2y nano vi khu\u1ea9n l\u00e0 c\u00e1c ti\u00eam mao (pili) (pili theo ti\u1ebfng Latin l\u00e0 “l\u00f4ng”) c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m gi\u1ed1ng l\u00f4ng th\u01b0\u1eddng c\u00f3 \u1edf c\u00e1c vi khu\u1ea9n kh\u00e1c, cho ph\u00e9p ch\u00fang b\u00e1m ch\u1eb7t v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t v\u00e0 th\u1eadm ch\u00ed k\u1ebft n\u1ed1i v\u1edbi nhau. V\u1edbi s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1ec1 h\u00ecnh d\u1ea1ng, th\u1eadt d\u1ec5 \u0111\u1ec3 tin r\u1eb1ng c\u00e1c d\u00e2y nano l\u00e0 c\u00e1c ti\u00eam mao. Nh\u01b0ng Moh El-Naggar, Ph\u00f3 gi\u00e1o s\u01b0 \u0110\u1ea1i h\u1ecdc Colombia, n\u00f3i r\u1eb1ng \u00f4ng lu\u00f4n th\u1eadn tr\u1ecdng tr\u00e1nh n\u00f3i r\u1eb1ng \u00f4ng bi\u1ebft ch\u1eafc \u0111\u00f3 l\u00e0 ch\u00fang.<\/p>\n\n\n\n

“\u00dd t\u01b0\u1edfng ti\u00eam mao l\u00e0 gi\u1ea3 thuy\u1ebft v\u1eefng nh\u1ea5t, nh\u01b0ng ch\u00fang t\u00f4i \u0111\u00e3 lu\u00f4n lu\u00f4n th\u1eadn tr\u1ecdng b\u1edfi v\u00ec th\u00e0nh ph\u1ea7n v\u00e0 c\u1ea5u tr\u00fac ch\u00ednh x\u00e1c l\u00e0 r\u1ea5t kh\u00f3 n\u1eafm b\u1eaft. Sau \u0111\u00f3, ch\u00fang t\u00f4i gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c th\u1ef1c nghi\u1ec7m v\u00e0 c\u00e1c d\u1eef li\u1ec7u ch\u1eafc ch\u1eafn \u0111\u00e3 d\u1eabn ch\u00fang t\u00f4i theo m\u1ed9t h\u01b0\u1edbng ho\u00e0n to\u00e0n kh\u00e1c. Theo nhi\u1ec1u c\u00e1ch, h\u00f3a ra \u0111\u00e2y l\u00e0 c\u00e1ch th\u1eadm ch\u00ed th\u00f4ng minh h\u01a1n \u0111\u1ec3 vi khu\u1ea9n c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho b\u1ea3n th\u00e2n”, \u00f4ng n\u00f3i.<\/p>\n\n\n\n

Manh m\u1ed1i \u0111\u1ea7u ti\u00ean c\u00f3 \u0111\u01b0\u1ee3c t\u1eeb vi\u1ec7c theo d\u00f5i c\u00e1c gen c\u1ee7a vi khu\u1ea9n. Trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh c\u00e1c d\u00e2y nano, c\u00e1c nh\u00e0 khoa h\u1ecdc ghi nh\u1eadn s\u1ef1 gia t\u0103ng s\u1ef1 bi\u1ec3u hi\u1ec7n c\u1ee7a c\u00e1c gen v\u1eadn chuy\u1ec3n \u0111i\u1ec7n t\u1eed, ch\u1ee9 kh\u00f4ng t\u0103ng t\u01b0\u01a1ng \u1ee9ng s\u1ef1 bi\u1ec3u hi\u1ec7n c\u1ee7a c\u00e1c gen pili. B\u1ecb th\u00e1ch th\u1ee9c b\u1edfi b\u1eb1ng ch\u1ee9ng kh\u00e1c v\u1ec1 d\u00e2y nano, ti\u1ebfp \u0111o nh\u00f3m nghi\u00ean c\u1ee9u c\u1ea7n t\u00ecm hi\u1ec3u th\u1ef1c s\u1ef1 ch\u00fang l\u00e0 c\u00e1i g\u00ec. El-Naggar c\u00f9ng Sahand Pirbadian, nghi\u00ean c\u1ee9u sinh c\u1ee7a tr\u01b0\u1eddng \u0111\u01b0a ra m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n v\u00e0 kh\u00e9o l\u00e9o \u0111\u1ec3 th\u1ef1c hi\u1ec7n kh\u00e1m ph\u00e1 n\u00e0y. B\u1eb1ng c\u00e1ch l\u1ea5y \u0111i oxy kh\u1ecfi vi khu\u1ea9n, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 \u0111\u1ec3 bu\u1ed9c c\u00e1c vi khu\u1ea9n c\u0103ng c\u00e1c d\u00e2y nano c\u1ee7a ch\u00fang theo y\u00eau c\u1ea7u, cho ph\u00e9p qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c quan s\u00e1t trong th\u1eddi gian th\u1ef1c. V\u00e0 b\u1eb1ng c\u00e1ch nhu\u1ed9m m\u00e0ng vi khu\u1ea9n, periplasm, t\u1ebf b\u00e0o ch\u1ea5t, v\u00e0 c\u00e1c protein c\u1ee5 th\u1ec3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 quay phim qu\u00e1 tr\u00ecnh c\u00e1c d\u00e2y nano v\u01b0\u01a1n ra – x\u00e1c nh\u1eadn r\u1eb1ng ch\u00fang d\u1ef1a tr\u00ean m\u00e0ng, ch\u1ee9 kh\u00f4ng li\u00ean quan gi\u00e0 \u0111\u1ebfn ti\u00eam mao.<\/p>\n\n\n\n

Vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a vi khu\u1ea9n \u0111i\u1ec7n n\u00e0y c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng v\u01b0\u1ee3t ra ngo\u00e0i ph\u00f2ng th\u00ed nghi\u1ec7m. Nh\u1eefng sinh v\u1eadt n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng gi\u1ea3i \u0111\u00e1p m\u1ed9t s\u1ed1 nh\u1eefng c\u00e2u h\u1ecfi l\u1edbn v\u1ec1 b\u1ea3n ch\u1ea5t c\u1ee7a s\u1ef1 s\u1ed1ng, bao g\u1ed3m c\u1ea3 nh\u1eefng d\u1ea1ng s\u1ed1ng ch\u00fang ta c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, nh\u01b0 trong kh\u00f4ng gian. Ngo\u00e0i ra, nghi\u00ean c\u1ee9u n\u00e0y c\u00f3 ti\u1ec1m n\u0103ng ch\u1ec9 d\u1eabn t\u1ea1o ra c\u00e1c m\u1ea1ch vi khu\u1ea9n s\u1ed1ng – h\u00ecnh th\u00e0nh n\u1ec1n t\u1ea3ng c\u00e1c thi\u1ebft b\u1ecb lai \u0111i\u1ec7n t\u1eed – t\u1ed5ng h\u1ee3p sinh h\u1ecdc.<\/p>\n\n\n\n

Theo C\u1ee5c th\u00f4ng tin khoa h\u1ecdc v\u00e0 c\u00f4ng ngh\u1ec7 qu\u1ed1c gia NASATI<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Trong 10 n\u0103m qua, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 b\u1ecb cu\u1ed1n h\u00fat b\u1edfi m\u1ed9t lo\u1ea1i “vi khu\u1ea9n \u0111i\u1ec7n” b\u1eafn ra nh\u1eefng tua d\u00e0i nh\u01b0 d\u00e2y \u0111i\u1ec7n, s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 ti\u1ebfp n\u0103ng l\u01b0\u1ee3ng cho b\u1ea3n […]<\/p>","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[],"class_list":["post-872","post","type-post","status-publish","format-standard","hentry","category-general-news"],"_links":{"self":[{"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/posts\/872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/comments?post=872"}],"version-history":[{"count":1,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/posts\/872\/revisions"}],"predecessor-version":[{"id":874,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/posts\/872\/revisions\/874"}],"wp:attachment":[{"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/media?parent=872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/categories?post=872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cbbiotec.vn\/en\/wp-json\/wp\/v2\/tags?post=872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}