{"id":13889,"date":"2023-12-10T10:12:19","date_gmt":"2023-12-10T10:12:19","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13889"},"modified":"2023-12-10T10:12:19","modified_gmt":"2023-12-10T10:12:19","slug":"electron-microscopy-color-imaging","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/microscopy\/electron-microscopy-color-imaging\/","title":{"rendered":"Elektronov\u00e1 mikroskopie: P\u0159in\u00e1\u0161\u00ed barvy do nanosv\u011bta"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Elektronov\u00e1 mikroskopie: P\u0159in\u00e1\u0161\u00ed barvy do nanosv\u011bta<\/h2>\n\n<h2 class=\"wp-block-heading\">\u00davod<\/h2>\n\n<p>Elektronov\u00e9 mikroskopy jsou v\u00fdkonn\u00e9 n\u00e1stroje, kter\u00e9 v\u011bdc\u016fm umo\u017e\u0148uj\u00ed pozorovat objekty v nanom\u011b\u0159\u00edtku. Tradi\u010dn\u00ed elektronov\u00e9 mikroskopy v\u0161ak vytv\u00e1\u0159ej\u00ed \u010dernob\u00edl\u00e9 sn\u00edmky, co\u017e m\u016f\u017ee zt\u011b\u017eovat rozli\u0161ov\u00e1n\u00ed mezi r\u016fzn\u00fdmi bun\u011b\u010dn\u00fdmi strukturami.<\/p>\n\n<p>V\u00fdzkumn\u00edci z University of California v San Diegu vyvinuli novou techniku, kter\u00e1 p\u0159id\u00e1v\u00e1 um\u011blou barvu do sn\u00edmk\u016f po\u0159\u00edzen\u00fdch elektronov\u00fdm mikroskopem. Tato technika by mohla pomoci v\u011bdc\u016fm l\u00e9pe porozum\u011bt struktur\u00e1m a funkc\u00edm uvnit\u0159 bun\u011bk.<\/p>\n\n<h2 class=\"wp-block-heading\">Jak technika funguje<\/h2>\n\n<p>Nov\u00e1 technika kombinuje sv\u011btelnou mikroskopii a elektronovou mikroskopii. V\u011bdci nejprve pomoc\u00ed sv\u011bteln\u00e9ho mikroskopu identifikuj\u00ed struktury, kter\u00e9 cht\u011bj\u00ed zv\u00fdraznit. Pot\u00e9 do struktur p\u0159idaj\u00ed mal\u00e9 mno\u017estv\u00ed kovu vz\u00e1cn\u00fdch zemin.<\/p>\n\n<p>D\u00e1le vystav\u00ed vzorek elektronov\u00e9mu mikroskopu. Elektronov\u00fd mikroskop vys\u00edl\u00e1 elektrony do tk\u00e1n\u011b. N\u011bkter\u00e9 elektrony projdou p\u0159\u00edmo, zat\u00edmco jin\u00e9 naraz\u00ed na siln\u011bj\u0161\u00ed nebo t\u011b\u017e\u0161\u00ed materi\u00e1ly a odraz\u00ed se.<\/p>\n\n<p>P\u00e1r elektron\u016f zas\u00e1hne kov vz\u00e1cn\u00fdch zemin a vytla\u010d\u00ed z n\u011bj elektron. To zp\u016fsob\u00ed, \u017ee vytla\u010den\u00fd elektron vyl\u00e9tne ven spolu s trochou energie. Energie je specifick\u00e1 pro konkr\u00e9tn\u00ed pou\u017eit\u00fd kov, a to je to, co mikroskop m\u011b\u0159\u00ed. Tato technika se naz\u00fdv\u00e1 elektronov\u00e1 energie ztr\u00e1tov\u00e1 spektroskopie.<\/p>\n\n<h2 class=\"wp-block-heading\">Aplikace techniky<\/h2>\n\n<p>V\u011bdci pou\u017eili novou techniku ke zobrazov\u00e1n\u00ed bun\u011b\u010dn\u00fdch struktur, jako je Golgiho apar\u00e1t, proteiny na plazmatick\u00e9 membr\u00e1n\u011b a dokonce proteiny v synaps\u00edch v mozku.<\/p>\n\n<p>Tato technika by mohla b\u00fdt pou\u017eita ke studiu \u0161irok\u00e9 \u0161k\u00e1ly biologick\u00fdch proces\u016f, v\u010detn\u011b:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Lokalizace protein\u016f v bu\u0148k\u00e1ch<\/li>\n<li>Interakce mezi r\u016fzn\u00fdmi bun\u011b\u010dn\u00fdmi strukturami<\/li>\n<li>V\u00fdvoj a pr\u016fb\u011bh nemoc\u00ed<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">V\u00fdhody techniky<\/h2>\n\n<p>Nov\u00e1 technika nab\u00edz\u00ed oproti tradi\u010dn\u00ed elektronov\u00e9 mikroskopii n\u011bkolik v\u00fdhod:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Barevn\u00e9 sn\u00edmky:<\/strong> Technika p\u0159id\u00e1v\u00e1 do sn\u00edmk\u016f po\u0159\u00edzen\u00fdch elektronov\u00fdm mikroskopem um\u011blou barvu, co\u017e usnad\u0148uje rozli\u0161ov\u00e1n\u00ed mezi r\u016fzn\u00fdmi bun\u011b\u010dn\u00fdmi strukturami.<\/li>\n<li><strong>Vysok\u00e9 rozli\u0161en\u00ed:<\/strong> Technika poskytuje sn\u00edmky s vysok\u00fdm rozli\u0161en\u00edm, kter\u00e9 v\u011bdc\u016fm umo\u017e\u0148uj\u00ed pozorovat objekty v nanom\u011b\u0159\u00edtku.<\/li>\n<li><strong>V\u0161estrannost:<\/strong> Technika m\u016f\u017ee b\u00fdt pou\u017eita ke zobrazov\u00e1n\u00ed \u0161irok\u00e9 \u0161k\u00e1ly biologick\u00fdch vzork\u016f.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Porovn\u00e1n\u00ed s jin\u00fdmi technikami<\/h2>\n\n<p>Existuj\u00ed i jin\u00e9 techniky, kter\u00e9 lze pou\u017e\u00edt k z\u00edsk\u00e1n\u00ed barevn\u00fdch sn\u00edmk\u016f z elektronov\u00fdch mikroskop\u016f. Tyto techniky v\u0161ak maj\u00ed sv\u00e1 omezen\u00ed.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Korelativn\u00ed sv\u011bteln\u00e1 elektronov\u00e1 mikroskopie:<\/strong> Tato technika vy\u017eaduje dva r\u016fzn\u00e9 sn\u00edmky z r\u016fzn\u00fdch mikroskop\u016f, co\u017e m\u016f\u017ee sn\u00ed\u017eit p\u0159esnost.<\/li>\n<li><strong>Imunozlat\u00e9 zna\u010den\u00ed:<\/strong> Tato technika m\u016f\u017ee poskytnout nejasn\u00e9 zbarven\u00ed.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">D\u011bdictv\u00ed Rogera Tsiena<\/h2>\n\n<p>Dokument popisuj\u00edc\u00ed novou techniku byl posledn\u00ed, kter\u00fd nesl jm\u00e9no Rogera Tsiena, chemika, nositele Nobelovy ceny, kter\u00fd zem\u0159el v srpnu. Tsien byl zn\u00e1m\u00fd p\u0159edev\u0161\u00edm pou\u017e\u00edv\u00e1n\u00edm fluorescen\u010dn\u00edho proteinu z med\u00faz k osv\u011btlov\u00e1n\u00ed bun\u011b\u010dn\u00fdch struktur.<\/p>\n\n<p>Nov\u00e1 technika je sv\u011bdectv\u00edm Tsienova odkazu inovac\u00ed v mikroskopii. Je to v\u00fdkonn\u00fd n\u00e1stroj, kter\u00fd by mohl pomoci v\u011bdc\u016fm l\u00e9pe porozum\u011bt sv\u011btu v nanom\u011b\u0159\u00edtku.<\/p>\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n<p>Nov\u00e1 technika p\u0159id\u00e1v\u00e1n\u00ed um\u011bl\u00e9 barvy do sn\u00edmk\u016f po\u0159\u00edzen\u00fdch elektronov\u00fdm mikroskopem je v\u00fdznamn\u00fdm pokrokem v mikroskopii. Mohla by pomoci v\u011bdc\u016fm l\u00e9pe porozum\u011bt struktur\u00e1m a funkc\u00edm uvnit\u0159 bun\u011bk a mohla by v\u00e9st k nov\u00fdm poznatk\u016fm o \u0161irok\u00e9 \u0161k\u00e1le biologick\u00fdch proces\u016f.<\/p>","protected":false},"excerpt":{"rendered":"<p>Elektronov\u00e1 mikroskopie: P\u0159in\u00e1\u0161\u00ed barvy do nanosv\u011bta \u00davod Elektronov\u00e9 mikroskopy jsou v\u00fdkonn\u00e9 n\u00e1stroje, kter\u00e9 v\u011bdc\u016fm umo\u017e\u0148uj\u00ed pozorovat objekty v nanom\u011b\u0159\u00edtku. Tradi\u010dn\u00ed elektronov\u00e9 mikroskopy v\u0161ak vytv\u00e1\u0159ej\u00ed \u010dernob\u00edl\u00e9 sn\u00edmky, co\u017e m\u016f\u017ee zt\u011b\u017eovat rozli\u0161ov\u00e1n\u00ed&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4878],"tags":[740,8082,8081,2569,18700,99],"class_list":["post-13889","post","type-post","status-publish","format-standard","hentry","category-microscopy","tag-biology","tag-cellular-imaging","tag-electron-microscopy","tag-nanotechnology","tag-artificial-color","tag-lifescienceart"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=13889"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13889\/revisions"}],"predecessor-version":[{"id":13890,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13889\/revisions\/13890"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=13889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=13889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=13889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}