{"id":37102,"date":"2021-04-14T07:16:52","date_gmt":"2021-04-14T07:16:52","guid":{"rendered":"https:\/\/www.xatakaciencia.com\/tecnologia\/celulas-biocombustible-portatiles-ahora-producen-electricidad-a-partir-acido-lactico-sudor"},"modified":"2021-04-14T07:16:52","modified_gmt":"2021-04-14T07:16:52","slug":"las-celulas-de-biocombustible-portatiles-ahora-producen-electricidad-a-partir-del-acido-lactico-del-sudor","status":"publish","type":"post","link":"https:\/\/forocilac.org\/en\/las-celulas-de-biocombustible-portatiles-ahora-producen-electricidad-a-partir-del-acido-lactico-del-sudor\/","title":{"rendered":"Portable biofuel cells now produce electricity from lactic acid in sweat"},"content":{"rendered":"<p>\n      <img decoding=\"async\" src=\"https:\/\/i.blogs.es\/850c05\/smartwatch-828786_640\/1024_2000.jpg\" alt=\"Las c\u00e9lulas de biocombustible port\u00e1tiles ahora producen electricidad a partir del \u00e1cido l\u00e1ctico del sudor\">\n    <\/p>\n<p>A team of scientists led by Associate Professor Isao Shitanda of Tokyo University of Science has just published <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775321000811?via%3Dihub\">A study<\/a> describing a novel design for a biofuel cell array that uses a chemical in sweat, <strong>lactic acid<\/strong>, to generate enough energy to power a biosensor and wireless communication devices for a short period of time. <\/p>\n<p><!-- BREAK 1 --><!--more--><\/p>\n<h2>More power than previous designs<\/h2>\n<p>Their new biofuel cell matrix looks like a paper bandage that can be worn, for example, on the arm or forearm. It essentially consists of a water-repellent paper substrate on which multiple biofuel cells are placed in series and parallel; <strong>The number of cells depends on the output voltage and the power required<\/strong>.  <\/p>\n<p><!-- BREAK 2 --><\/p>\n<div class=\"article-asset-video article-asset-large\">\n<div class=\"asset-content\">\n<div class=\"base-asset-video\">\n<div class=\"js-dailymotion\">\n    <script type=\"application\/json\">\n     {\"videoId\":\"x80m2kp\",\"autoplay\":true,\"title\":\"C\u00e9lulas de biocombustible port\u00e1tiles que producen electricidad a partir del sudor\"}\n    <\/script>\n   <\/div><\/div><\/div>\n<\/div>\n<p>In each cell, electrochemical reactions between lactic acid and an enzyme present on the electrodes <strong>produce an electric current<\/strong>, which flows into a general current collector made of a conductive carbon paste.<\/p>\n<p><!-- BREAK 3 --><\/p>\n<p>This <strong>not the first lactic acid-based biofuel cell<\/strong>, but a few key differences make this new design stand out. One is the fact that the entire device can be manufactured using screen printing, a technique generally suitable for cheap mass production. This was made possible by careful selection of materials and ingenious design. For example, while previous similar cells used silver wires as conductive paths, today&#039;s biofuel cells employ porous carbon ink. <\/p>\n<p><!-- BREAK 4 --><\/p>\n<div class=\"article-asset article-asset-normal article-asset-center\">\n<div class=\"desvio-container\">\n<div class=\"desvio\">\n<div class=\"desvio-figure js-desvio-figure\">\n    <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\" ><br \/>\n     <img decoding=\"async\" alt=\"El&#x20;primer&#x20;wearable&#x20;para&#x20;beb&#x00E9;s&#x20;que&#x20;monitorea&#x20;con&#x20;precisi&#x00F3;n&#x20;la&#x20;ictericia,&#x20;algo&#x20;que&#x20;afecta&#x20;a&#x20;la&#x20;mayor&#x00ED;a&#x20;de&#x20;neonatos\" src=\"https:\/\/i.blogs.es\/71bb81\/firstwearabl\/375_142.jpg\"><br \/>\n    <\/a>\n   <\/div>\n<div class=\"desvio-summary\">\n<div class=\"desvio-taxonomy js-desvio-taxonomy\">\n     <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\" class=\"desvio-taxonomy-anchor\">In Xataka Science<\/a>\n    <\/div>\n<p>    <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\" class=\"desvio-title js-desvio-title\">The first wearable for babies that accurately monitors jaundice, something that affects the majority of newborns<\/a>\n   <\/div><\/div><\/div>\n<\/div>\n<p>Another advantage is the way lactic acid is delivered to the cells. The layers of paper are used to collect sweat and transport it to all cells simultaneously through the capillary effect, the same effect by which water travels quickly <strong>through a napkin when it comes into contact with a puddle of water<\/strong>.<\/p>\n<p><!-- BREAK 5 --><\/p>\n<p><strong>They also transmit more energy<\/strong>: They could generate a voltage of 3.66 V and an output power of 4.3 mW.<\/p>\n<p><!-- BREAK 6 --><script>\n (function() {\n  window._JS_MODULES = window._JS_MODULES || {};\n  var headElement = document.getElementsByTagName('head')[0];\n  if (_JS_MODULES.instagram) {\n   var instagramScript = document.createElement('script');\n   instagramScript.src = 'https:\/\/platform.instagram.com\/en_US\/embeds.js';\n   instagramScript.async = true;\n   instagramScript.defer = true;\n   headElement.appendChild(instagramScript);\n  }\n })();\n<\/script><\/p>\n<p> &#8211; <br \/> The news<br \/>\n      <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/celulas-biocombustible-portatiles-ahora-producen-electricidad-a-partir-acido-lactico-sudor?utm_source=feedburner&#038;utm_medium=feed&#038;utm_campaign=14_Apr_2021\"><br \/>\n       <em> Portable biofuel cells now produce electricity from lactic acid in sweat <\/em><br \/>\n      <\/a><br \/>\n      was originally published in<br \/>\n      <a href=\"https:\/\/www.xatakaciencia.com\/?utm_source=feedburner&#038;utm_medium=feed&#038;utm_campaign=14_Apr_2021\"><br \/>\n       <strong> Xataka Science <\/strong><br \/>\n      <\/a><br \/>\n            by <a\n       href=\"https:\/\/www.xatakaciencia.com\/autor\/sergio-parra?utm_source=feedburner&#038;utm_medium=feed&#038;utm_campaign=14_Apr_2021\"><br \/>\n       Sergio Parra<br \/>\n      <\/a><br \/>\n      . <\/p>\n<p><img decoding=\"async\" src=\"http:\/\/feeds.feedburner.com\/~r\/xatakaciencia\/~4\/oeaLB3iCoPA\" height=\"1\" width=\"1\" alt=\"\"\/><\/p>","protected":false},"excerpt":{"rendered":"<p>\n      <img decoding=\"async\" src=\"https:\/\/i.blogs.es\/850c05\/smartwatch-828786_640\/1024_2000.jpg\" alt=\"Las c\u00e9lulas de biocombustible port\u00e1tiles ahora producen electricidad a partir del \u00e1cido l\u00e1ctico del sudor\"><\/p>\n<p>A team of scientists led by Associate Professor Isao Shitanda of Tokyo University of Science has just published <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775321000811?via%3Dihub\">A study<\/a> describing a novel design for a biofuel cell array that uses a chemical in sweat, <strong>lactic acid<\/strong>, to generate enough energy to power a biosensor and wireless communication devices for a short period of time. <\/p>\n<p><!-- BREAK 1 --><!--more--><\/p>\n<h2>More power than previous designs<\/h2>\n<p>Their new biofuel cell matrix looks like a paper bandage that can be worn, for example, on the arm or forearm. It essentially consists of a water-repellent paper substrate on which multiple biofuel cells are placed in series and parallel; <strong>The number of cells depends on the output voltage and the power required<\/strong>.  <\/p>\n<p><!-- BREAK 2 --><\/p>\n<div class=\"article-asset-video article-asset-large\">\n<div class=\"asset-content\">\n<div class=\"base-asset-video\">\n<div class=\"js-dailymotion\">\n    <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<p>In each cell, electrochemical reactions between lactic acid and an enzyme present on the electrodes <strong>produce an electric current<\/strong>, which flows into a general current collector made of a conductive carbon paste.<\/p>\n<p><!-- BREAK 3 --><\/p>\n<p>This <strong>not the first lactic acid-based biofuel cell<\/strong>, but a few key differences make this new design stand out. One is the fact that the entire device can be manufactured using screen printing, a technique generally suitable for cheap mass production. This was made possible by careful selection of materials and ingenious design. For example, while previous similar cells used silver wires as conductive paths, today&#039;s biofuel cells employ porous carbon ink. <\/p>\n<p><!-- BREAK 4 --><\/p>\n<div class=\"article-asset article-asset-normal article-asset-center\">\n<div class=\"desvio-container\">\n<div class=\"desvio\">\n<div class=\"desvio-figure js-desvio-figure\">\n    <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\"><br \/>\n     <img decoding=\"async\" alt=\"El primer wearable para beb\u00e9s que monitorea con precisi\u00f3n la ictericia, algo que afecta a la mayor\u00eda de neonatos\" src=\"https:\/\/i.blogs.es\/71bb81\/firstwearabl\/375_142.jpg\"><\/a>\n   <\/div>\n<div class=\"desvio-summary\">\n<div class=\"desvio-taxonomy js-desvio-taxonomy\">\n     <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\" class=\"desvio-taxonomy-anchor\">In Xataka Science<\/a>\n    <\/div>\n<p>    <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/primer-wearable-para-bebes-que-monitorea-precision-ictericia-algo-que-afecta-a-mayoria-neonatos\" class=\"desvio-title js-desvio-title\">The first wearable for babies that accurately monitors jaundice, something that affects the majority of newborns<\/a>\n   <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<p>Another advantage is the way lactic acid is delivered to the cells. The layers of paper are used to collect sweat and transport it to all cells simultaneously through the capillary effect, the same effect by which water travels quickly <strong>through a napkin when it comes into contact with a puddle of water<\/strong>.<\/p>\n<p><!-- BREAK 5 --><\/p>\n<p><strong>They also transmit more energy<\/strong>: They could generate a voltage of 3.66 V and an output power of 4.3 mW.<\/p>\n<p><!-- BREAK 6 --><\/p>\n<p> &#8211; <br \/> The news<br \/>\n      <a href=\"https:\/\/www.xatakaciencia.com\/tecnologia\/celulas-biocombustible-portatiles-ahora-producen-electricidad-a-partir-acido-lactico-sudor?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=14_Apr_2021\"><br \/>\n       <em> Portable biofuel cells now produce electricity from lactic acid in sweat <\/em><br \/>\n      <\/a><br \/>\n      was originally published in<br \/>\n      <a href=\"https:\/\/www.xatakaciencia.com\/?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=14_Apr_2021\"><br \/>\n       <strong> Xataka Science <\/strong><br \/>\n      <\/a><br \/>\n            by <a href=\"https:\/\/www.xatakaciencia.com\/autor\/sergio-parra?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=14_Apr_2021\"><br \/>\n       Sergio Parra<br \/>\n      <\/a><br \/>\n      . <\/p>\n<p><img decoding=\"async\" src=\"http:\/\/feeds.feedburner.com\/~r\/xatakaciencia\/~4\/oeaLB3iCoPA\" height=\"1\" width=\"1\" alt=\"\"><\/p>","protected":false},"author":19,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[],"class_list":{"0":"post-37102","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-portal-3"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/posts\/37102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/comments?post=37102"}],"version-history":[{"count":3,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/posts\/37102\/revisions"}],"predecessor-version":[{"id":37299,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/posts\/37102\/revisions\/37299"}],"wp:attachment":[{"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/media?parent=37102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/categories?post=37102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forocilac.org\/en\/wp-json\/wp\/v2\/tags?post=37102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}