{"id":921,"date":"2026-02-18T20:52:10","date_gmt":"2026-02-18T20:52:10","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/921\/"},"modified":"2026-02-18T20:52:10","modified_gmt":"2026-02-18T20:52:10","slug":"osel-cz-slunce-v-lahvi-dna-inspirovala-organickou-molekulu-co-udrzi-energii-roky","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/921\/","title":{"rendered":":: OSEL.CZ :: – Slunce v\u00a0lahvi: DNA inspirovala organickou molekulu, co udr\u017e\u00ed energii roky"},"content":{"rendered":"

\"Jak<\/a><\/p>\n

Jak ulo\u017eit slunce v\u00a0lahvi? Kredit: NASA.<\/p>\n

Kdy\u017e nesv\u00edt\u00ed slunce, sol\u00e1rn\u00ed energetika se obvykle zastav\u00ed. Je to klasick\u00fd probl\u00e9m udr\u017eiteln\u00fdch zdroj\u016f \u2013 p\u0159\u00edroda v\u011bt\u0161inou nefunguje nonstop. V\u00a0p\u0159\u00edpad\u011b sol\u00e1rn\u00ed energetiky slunce nen\u00ed k\u00a0dispozici, kdy\u017e pr\u0161\u00ed, kdy\u017e je mlha nebo kdy\u017e je noc. Pomoc mohou nab\u00eddnout technologie, kter\u00e9 co nejv\u00edce efektivn\u00edm zp\u016fsobem uchov\u00e1vaj\u00ed energii.<\/p>\n

\u00a0<\/p>\n

\"Grace<\/a><\/p>\n

Grace Han. Kredit: Jeff Liang \/ UC Santa Barbara.<\/p>\n

Chemici University of California \u2013 Santa Barbara p\u0159i\u0161li s\u00a0\u0159e\u0161en\u00edm, kter\u00e9 nevy\u017eaduje objemn\u00e9 baterie nebo rozs\u00e1hlou elektrickou infrastrukturu. Grace Hanov\u00e1 a jej\u00ed t\u00fdm vytvo\u0159ili nov\u00fd materi\u00e1l typu MOST (Molecular solar thermal), kter\u00fd do sebe pojme energii slune\u010dn\u00edho z\u00e1\u0159en\u00ed, uchov\u00e1 ji ve sv\u00fdch chemick\u00fdch vazb\u00e1ch a v\u00a0p\u0159\u00edpad\u011b pot\u0159eby ji zase uvoln\u00ed.<\/p>\n

\u00a0<\/p>\n

Hanovou a jej\u00ed kolegy inspirovala molekula DNA, tedy p\u0159esn\u011bji \u0159e\u010deno jej\u00ed po\u0161kozen\u00ed, k\u00a0n\u011bmu\u017e doch\u00e1z\u00ed p\u0159i p\u016fsoben\u00ed ultrafialov\u00e9ho z\u00e1\u0159en\u00ed. Vytvo\u0159ili syst\u00e9m, v\u00a0n\u011bm\u017e se energie ukl\u00e1d\u00e1 v\u00a0syntetick\u00e9m metastabiln\u00edm Dewarov\u011b valen\u010dn\u00edm izomeru pyrimidonu, co\u017e je molekula vznikaj\u00edc\u00ed p\u0159i po\u0161kozen\u00ed DNA, a op\u011bt se z\u00a0n\u011bho uvol\u0148uje. Podle po\u010d\u00edta\u010dov\u00fdch model\u016f takto ulo\u017een\u00e1 energie z\u016fst\u00e1v\u00e1 stabiln\u00ed a neztr\u00e1c\u00ed se, i kdyby byla ulo\u017een\u00e1 cel\u00e9 roky.<\/p>\n

\u00a0<\/p>\n

\"UC<\/a><\/p>\n

UC Santa Barbara. Kredit: UC Santa Barbara, Wikimedia Commons, CC BY-SA 4.0<\/p>\n

Zm\u00edn\u011bn\u00e1 molekula funguje jako mechanick\u00e1 pru\u017eina. Kdy\u017e je osv\u00edcen\u00e1 sluncem, zkrout\u00ed se do energeticky bohat\u00e9ho stavu. V\u00a0n\u011bm pak z\u016fstane, dokud ho n\u011bjak\u00fd spou\u0161t\u011b\u010d, co\u017e m\u016f\u017ee b\u00fdt nap\u0159\u00edklad mal\u00e9 mno\u017estv\u00ed tepla nebo katalyz\u00e1tor, nevr\u00e1t\u00ed do stavu o n\u00edzk\u00e9 energie \u2013 a ulo\u017een\u00e1 energie se p\u0159i tom op\u011bt uvoln\u00ed.<\/p>\n

\u00a0<\/p>\n

V\u011bdci tomu \u0159\u00edkaj\u00ed nab\u00edjiteln\u00e1 sol\u00e1rn\u00ed baterie. Ukl\u00e1d\u00e1 slune\u010dn\u00ed energii a lze ji znovu nab\u00edjet. Hustota ulo\u017een\u00e9 energie je docela zv\u00ed\u0159ec\u00ed. P\u0159esahuje 1,6 MJ na jeden kilogram. To je skoro dvojn\u00e1sobek ve srovn\u00e1n\u00ed se standardn\u00ed lithium-iontovou bateri\u00ed a tak\u00e9 mnohem v\u00edc ne\u017e u d\u0159\u00edv\u011bj\u0161\u00edch generac\u00ed syst\u00e9m\u016f typu MOST.<\/p>\n

Tv\u016frci nov\u00e9 technologie se py\u0161n\u00ed t\u00edm, \u017ee uvoln\u011bn\u00e1 energie uva\u0159\u00ed vodu, co\u017e je u podobn\u00fdch syst\u00e9m\u016f nev\u00eddan\u00e1 v\u011bc. Vzhledem k\u00a0tomu, \u017ee je mo\u017en\u00e9 nov\u00fd materi\u00e1l rozpustit ve vod\u011b, se nab\u00edz\u00ed nep\u0159ebern\u00e9 mno\u017estv\u00ed rozmanit\u00fdch aplikac\u00ed s\u00a0oh\u0159\u00edv\u00e1n\u00edm i dal\u0161\u00edm zp\u016fsoby vyu\u017eit\u00ed.<\/p>\n

\u00a0<\/p>\n

Video: INTERDISCIPLINARY RESEARCH IN ACTION: Dr. Grace Han and Han P.Q. Nguyen<\/p>\n

\n

\u00a0<\/p>\n

Literatura<\/p>\n

UC Santa Barbara 12. 2. 2026.<\/a><\/p>\n

Science online 12. 2. 2026.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Jak ulo\u017eit slunce v\u00a0lahvi? Kredit: NASA. Kdy\u017e nesv\u00edt\u00ed slunce, sol\u00e1rn\u00ed energetika se obvykle zastav\u00ed. Je to klasick\u00fd probl\u00e9m…\n","protected":false},"author":2,"featured_media":922,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[11],"tags":[1102,1101,54,53,52],"class_list":["post-921","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-baterie","tag-solarni","tag-svet","tag-world","tag-world-news"],"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=921"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/921\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/922"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}