{"id":1114,"date":"2016-06-16T13:25:28","date_gmt":"2016-06-16T16:25:28","guid":{"rendered":"https:\/\/www.nachodelatorre.com.ar\/mosconi\/?p=1114"},"modified":"2016-06-16T13:25:28","modified_gmt":"2016-06-16T16:25:28","slug":"bacterias-geneticamente-modificadas-absorben-co2-y-producen-energia","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=1114","title":{"rendered":"Bacterias gen\u00e9ticamente modificadas absorben Co2 y producen energ\u00eda"},"content":{"rendered":"<p>El profesor \u00a0Daniel G. Nocera, modific\u00f3 \u00a0gen\u00e9ticamente \u00a0bacterias, \u00a0 para que absorban \u00a0 hidr\u00f3geno y di\u00f3xido de carbono y los conviertan \u00a0en \u00a0alcohol.\u00a0\u00a0\u00a0A gran escala podr\u00eda solucionar el exceso de CO2 en la\u00a0atm\u00f3sfera\u00a0y la necesidad \u00a0de \u00a0combustibles .<!--more--><\/p>\n<p>The chemist\u00a0who gave us the artificial leaf has genetically engineered bacteria to absorb hydrogen and carbon dioxide and convert them into alcohol fuel.<\/p>\n<p>When\u00a0Harvard Professor of Energy Daniel G. Nocera announced he was working with bacteria last year, other scientists cautioned it would be difficult to achieve a productive level of efficiency. At the time, Nocera was aiming for 5 percent efficiency\u2014about 5 times better than plants. This month at the University of Chicago, he announced\u00a0his bug, dubbed by his colleagues\u00a0the \u201cBionic Leaf,\u201d converts\u00a0sunlight ten times\u00a0more efficiently than plants.<\/p>\n<p>\u201cRight now we\u2019re making isopropanol, isobutanol, isopentanol,\u201d he said in a lecture to the Energy Policy Institute at Chicago. \u201cThese are all alcohols you can burn directly. And it\u2019s coming from hydrogen from split water, and it\u2019s breathing in CO2. That\u2019s what this bug\u2019s doing.\u201d<\/p>\n<p>Nocera\u2019s artificial leaf, developed\u00a0while he was at MIT,\u00a0<a href=\"http:\/\/www.nytimes.com\/2011\/05\/22\/business\/22novel.html\" target=\"_blank\" rel=\"noopener noreferrer\">made a splash<\/a> five years ago because the wafer of silicon and other elements can be dropped in water, exposed to sunlight, and it will continuously split the water into hydrogen and oxygen. Hydrogen, a clean burning\u00a0fuel, is typically made from\u00a0natural gas\u00a0in a process that emits\u00a0greenhouse gases.<\/p>\n<p>The leaf hasn\u2019t lived up to its promise, Nocera\u00a0said, because the world isn\u2019t ready for hydrogen fuel.<\/p>\n<p>\u201cIf I give you my renewable hydrogen the only thing you\u2019ll do is blow up balloons with it,\u201d he said. \u201cThere\u2019s no infrastructure for hydrogen.\u201d<\/p>\n<p>But if hydrogen from\u00a0the leaf can combine\u00a0with CO2 to make alcohol fuel, the fuel can be used the way\u00a0diesel is now.<\/p>\n<p>So over the last 18 months, Nocera worked with biologists from Harvard Medical School to\u00a0engineer a bacteria called <em>Raistonia\u00a0eutropha<\/em> to consume hydrogen and CO2 and convert them into adenosine triphosphate (ATP), the energy\u00a0molecule\u00a0used by natural organisms. Building on\u00a0discoveries made earlier by Anthony Sinskey, a professor of microbiology at MIT, they\u00a0inserted more genes to\u00a0convert the ATP into alcohol and cause the bacteria to excrete it.<\/p>\n<p>Fuente: <em><a href=\"http:\/\/www.forbes.com\/sites\/jeffmcmahon\/2016\/05\/29\/harvard-scientist-engineers-a-superbug-that-inhales-co2-produces-energy\/#3b5e79685a9d\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.forbes.com<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El profesor \u00a0Daniel G. Nocera, modific\u00f3 \u00a0gen\u00e9ticamente \u00a0bacterias, \u00a0 para que absorban \u00a0 hidr\u00f3geno y di\u00f3xido de carbono y los conviertan \u00a0en \u00a0alcohol.\u00a0\u00a0\u00a0A gran escala&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[29,24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/1114"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1114"}],"version-history":[{"count":0,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/1114\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}