{"id":7469,"date":"2018-01-30T14:26:57","date_gmt":"2018-01-30T20:26:57","guid":{"rendered":"http:\/\/cienciauanl.uanl.mx\/?p=7469"},"modified":"2018-01-30T14:26:57","modified_gmt":"2018-01-30T20:26:57","slug":"la-saliva-da-energia","status":"publish","type":"post","link":"https:\/\/cienciauanl.uanl.mx\/?p=7469","title":{"rendered":"La \u00a0saliva \u00a0da \u00a0energi\u0301a"},"content":{"rendered":"

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

CIENCIA UANL \/ A\u00d1O 20, No. 86 octubre-diciembre 2017<\/p>\n

Casi \u00a0todo \u00a0el \u00a0mundo, \u00a0en \u00a0alg\u00fan \u00a0momento, \u00a0se \u00a0ha \u00a0quedado \u00a0 sin \u00a0 bater\u00edas \u00a0 para \u00a0 alg\u00fan \u00a0 aparato \u00a0 en \u00a0 particular. \u00a0 Te \u00a0 imaginas \u00a0 c\u00f3mo \u00a0ser\u00eda \u00a0tener \u00a0unas \u00a0pilas \u00a0 a \u00a0 la \u00a0 mano \u00a0 que \u00a0 con \u00a0 s\u00f3lo \u00a0lamerlas \u00a0(o \u00a0bueno, \u00a0no \u00a0precisamente \u00a0as\u00ed) \u00a0se \u00a0carguen \u00a0nuevamente. Pues \u00a0unos \u00a0cient\u00edficos \u00a0han \u00a0desarrollado una \u00a0 bater\u00eda \u00a0 que \u00a0 se \u00a0 activa \u00a0 a \u00a0 trav\u00e9s \u00a0 de \u00a0 la \u00a0 saliva \u00a0 y \u00a0 que \u00a0 puede \u00a0ser \u00a0utilizada \u00a0en condiciones \u00a0extremas \u00a0donde \u00a0las \u00a0 bater\u00edas \u00a0normales \u00a0no \u00a0funcionan.<\/p>\n

Durante \u00a0 los \u00a0 \u00faltimos \u00a0 a\u00f1os, \u00a0 Seokheun \u00a0 Choi, \u00a0 de \u00a0 la \u00a0 Universidad \u00a0 de \u00a0 Binghamton, \u00a0 en \u00a0 Nueva \u00a0 York, \u00a0 Estados \u00a0 Unidos, \u00a0 se ha \u00a0 centrado \u00a0 en \u00a0 desarrollar \u00a0 microfuentes \u00a0 de \u00a0 energ\u00eda \u00a0para \u00a0alimentar, \u00a0en \u00a0regiones \u00a0con \u00a0recursos \u00a0limitados, \u00a0biosensores \u00a0de diagn\u00f3stico \u00a0en \u00a0puntos \u00a0de \u00a0atenci\u00f3n \u00a0 sanitaria; \u00a0por \u00a0 lo \u00a0 que \u00a0 ha \u00a0 creado \u00a0 varias \u00a0 bater\u00edas \u00a0 basadas \u00a0 en \u00a0papel \u00a0que \u00a0se \u00a0energizan a \u00a0trav\u00e9s \u00a0de \u00a0bacterias.<\/p>\n

La \u00a0 microgeneraci\u00f3n \u00a0 de \u00a0 energ\u00eda \u00a0 bajo \u00a0 demanda \u00a0 se \u00a0 necesita \u00a0especialmente \u00a0para \u00a0aplicaciones \u00a0de \u00a0diagn\u00f3stico \u00a0m\u00e9dico \u00a0en puntos \u00a0de \u00a0atenci\u00f3n \u00a0sanitaria \u00a0de \u00a0pa\u00edses \u00a0en \u00a0 v\u00edas \u00a0de \u00a0desarrollo. \u00a0Normalmente, \u00a0esas \u00a0aplicaciones \u00a0precisan \u00a0tan \u00a0s\u00f3lo \u00a0una energ\u00eda \u00a0equivalente \u00a0a \u00a0varias \u00a0decenas \u00a0 de \u00a0 microvatios \u00a0 durante \u00a0 varios \u00a0 minutos, \u00a0 por \u00a0 lo \u00a0 que \u00a0 las \u00a0 bater\u00edas \u00a0comerciales \u00a0u otras \u00a0tecnolog\u00edas \u00a0de \u00a0producci\u00f3n \u00a0 de \u00a0energ\u00eda \u00a0resultan \u00a0demasiado \u00a0caras \u00a0y \u00a0suponen \u00a0un \u00a0problema \u00a0 medioambiental \u00a0 debido \u00a0 a la \u00a0 contaminaci\u00f3n \u00a0 que \u00a0 provocan.<\/p>\n

Choi \u00a0 y \u00a0 Maedeh \u00a0 Mohammadifar \u00a0 han \u00a0 creado \u00a0 una \u00a0 bater\u00eda \u00a0 energizada \u00a0 por \u00a0 bacterias \u00a0 hecha \u00a0 de \u00a0 papel \u00a0 en \u00a0 buena \u00a0 parte \u00a0 y \u00a0 de \u00a0 alto \u00a0 rendimiento. \u00a0 Lo \u00a0 han \u00a0 conseguido \u00a0 construyendo \u00a0 celdas \u00a0 de \u00a0 combustible \u00a0 microbianas \u00a0 con \u00a0c\u00e9lulas \u00a0 (biol\u00f3gicas) exoel\u00e9ctricas \u00a0 inactivas \u00a0 y \u00a0 secadas \u00a0 por \u00a0 congelaci\u00f3n, \u00a0 las \u00a0 cuales \u00a0 generan \u00a0 energ\u00eda \u00a0 a \u00a0 los \u00a0 pocos \u00a0minutos \u00a0de \u00a0a\u00f1adir \u00a0saliva. En \u00a0las \u00a0pruebas \u00a0realizadas \u00a0hasta \u00a0el \u00a0momento, \u00a0la \u00a0nueva \u00a0bater\u00eda \u00a0ha \u00a0logrado \u00a0generar de manera fiable energ\u00eda \u00a0a \u00a0partir \u00a0de \u00a0una gota \u00a0de \u00a0saliva, \u00a0suministrando \u00a0 electricidad \u00a0 que \u00a0 podr\u00eda \u00a0 ser \u00a0 usada \u00a0 en \u00a0 la \u00a0 pr\u00f3xima \u00a0generaci\u00f3n \u00a0de \u00a0plataformas \u00a0de diagn\u00f3stico \u00a0para \u00a0 puntos \u00a0 de \u00a0 atenci\u00f3n \u00a0 sanitaria, \u00a0 desechables \u00a0 y \u00a0 hechas \u00a0 en \u00a0 buena \u00a0parte \u00a0de \u00a0papel.<\/p>\n

Estas \u00a0bater\u00edas \u00a0tienen \u00a0ventajas \u00a0competitivas \u00a0sobre \u00a0otras \u00a0soluciones \u00a0energ\u00e9ticas \u00a0convencionales \u00a0 porque \u00a0 el \u00a0 fluido \u00a0biol\u00f3gico para \u00a0su \u00a0activaci\u00f3n \u00a0bajo \u00a0demanda \u00a0se \u00a0 halla \u00a0disponible \u00a0(claro \u00a0est\u00e1) \u00a0incluso \u00a0en \u00a0los \u00a0lugares \u00a0con \u00a0 menos \u00a0 recursos, \u00a0 y \u00a0 porque la \u00a0 tecnolog\u00eda \u00a0 de \u00a0 secado \u00a0 por \u00a0 congelaci\u00f3n \u00a0 permite \u00a0 un \u00a0 almacenamiento \u00a0 a \u00a0 largo \u00a0 plazo \u00a0 de \u00a0c\u00e9lulas \u00a0sin \u00a0degradaci\u00f3n \u00a0o desnaturalizaci\u00f3n \u00a0(fuente: \u00a0 Advanced \u00a0Materials \u00a0Technologies).<\/p>\n","protected":false},"excerpt":{"rendered":"

CIENCIA UANL \/ A\u00d1O 20, No. 86 octubre-diciembre 2017 Casi \u00a0todo \u00a0el \u00a0mundo, \u00a0en \u00a0alg\u00fan \u00a0momento, \u00a0se \u00a0ha \u00a0quedado \u00a0 sin \u00a0 bater\u00edas \u00a0 para \u00a0 alg\u00fan \u00a0 aparato \u00a0 en \u00a0 particular. \u00a0 Te \u00a0 imaginas \u00a0 c\u00f3mo \u00a0ser\u00eda \u00a0tener \u00a0unas \u00a0pilas \u00a0 a \u00a0 la \u00a0 mano \u00a0 que \u00a0 con \u00a0 s\u00f3lo \u00a0lamerlas \u00a0(o \u00a0bueno, \u00a0no \u00a0precisamente […]<\/p>\n","protected":false},"author":4,"featured_media":7470,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-7469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-en-breve"],"_links":{"self":[{"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/posts\/7469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7469"}],"version-history":[{"count":1,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/posts\/7469\/revisions"}],"predecessor-version":[{"id":7471,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/posts\/7469\/revisions\/7471"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=\/wp\/v2\/media\/7470"}],"wp:attachment":[{"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cienciauanl.uanl.mx\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}