{"id":368700,"date":"2022-04-19T12:30:54","date_gmt":"2022-04-19T10:30:54","guid":{"rendered":"https:\/\/innovationorigins.com\/?post_type=selected&p=368700"},"modified":"2022-04-19T12:30:54","modified_gmt":"2022-04-19T10:30:54","slug":"bacterial-soundtracks-revealed-by-graphene-membrane","status":"publish","type":"selected","link":"https:\/\/ioplus.nl\/archive\/en\/selected\/bacterial-soundtracks-revealed-by-graphene-membrane\/","title":{"rendered":"Bacterial soundtracks revealed by graphene membrane"},"content":{"rendered":"\n

A team of scientists at TU Delft<\/a> has found a way to hear whether bacteria are still alive. If you don’t hear anything anymore, the bacteria are dead. The scientists led by Dr. Farbod Alijani have published their research in Nature Nanotechnology<\/a>.<\/p>\n\n\n\n

Farbod Alijani\u2019s team was originally looking into the fundamentals of the mechanics of graphene, but at a certain point, they wondered what would happen if this extremely sensitive material comes into contact with a single biological object.<\/p>\n\n\n\n

\u00a9 TU Delft<\/figcaption><\/figure>\n\n\n\n

The sound of a single bacterium <\/h3>\n\n\n\n

\u00a0\u201cGraphene is a form of carbon consisting of a single layer of atoms and is also known as the wonder material,\u201d says Alijani. \u201cIt\u2019s very strong with nice electrical and mechanical properties, and it\u2019s also extremely sensitive to external forces.\u201d<\/p>\n\n\n\n

The team of researchers initiated a collaboration with the nanobiology group of Cees Dekker and the nanomechanics group of Peter Steeneken. Together with PhD student Irek Roslon and postdoc Dr. Aleksandre Japaridze, the team ran their first experiments with E. coli bacteria. Cees Dekker: \u201cWhat we saw was striking! When a single bacterium adheres to the surface of a graphene drum, it generates random oscillations with amplitudes as low as a few nanometers that we could detect. We could hear the sound of a single bacterium!\u201d<\/p>\n\n\n

<\/a>
<\/div><\/div>
Graphene enables a computer’s hard drive to store ten times as much data<\/div>
Graphene, a material comprised of carbon atoms, can help make computer’s hard drives much more powerful, claims the University of Cambridge. <\/div><\/div><\/div>\n\n\n

Punching a graphene drum with a bacterium<\/h3>\n\n\n\n

The extremely small oscillations are a result of the biological processes of the bacteria with the main contribution from their flagella (tails on the cell surface that propel bacteria). \u201cTo understand how tiny these flagellar beats on graphene are, it\u2019s worth saying that they are at least 10 billion times smaller than a boxer\u2019s punch when reaching a punching bag. Yet, these nanoscale beats can be converted to soundtracks and listened to – and how cool is that,\u201d Alijani says.<\/p>\n\n\n\n

Read the whole story here<\/a><\/p>\n","protected":false},"author":1760,"featured_media":513411,"template":"","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[8553],"tags":[30066,38246,4482,25333],"location":[6763],"internal_archives":[],"class_list":["post-368700","selected","type-selected","status-publish","has-post-thumbnail","hentry","category-digital","tag-bacteria","tag-graphene","tag-nature","tag-tu-delft-en","location-netherlands"],"blocksy_meta":[],"acf":[],"featured_img":"https:\/\/ioplus.nl\/archive\/wp-content\/uploads\/2022\/04\/hard-drive-6074611920.jpg","coauthors":[],"author_meta":{"author_link":"https:\/\/ioplus.nl\/archive\/author\/arnoud-cornelissen\/","display_name":"Arnoud Cornelissen"},"relative_dates":{"created":"Posted 4 years ago","modified":"Updated 4 years ago"},"absolute_dates":{"created":"Posted on April 19, 2022","modified":"Updated on April 19, 2022"},"absolute_dates_time":{"created":"Posted on April 19, 2022 12:30 pm","modified":"Updated on April 19, 2022 12:30 pm"},"featured_img_caption":"","tax_additional":{"category":{"linked":["Digital<\/a>"],"unlinked":["Digital<\/span>"],"slug":"category","name":"Categories"},"post_tag":{"linked":["bacteria<\/a>","graphene<\/a>","Nature<\/a>","TU Delft<\/a>"],"unlinked":["bacteria<\/span>","graphene<\/span>","Nature<\/span>","TU Delft<\/span>"],"slug":"post_tag","name":"Tags"},"language":{"linked":["EN<\/a>"],"unlinked":["EN<\/span>"],"slug":"language","name":"Tags"},"post_translations":{"linked":["pll_625e8f615dca4<\/a>"],"unlinked":["pll_625e8f615dca4<\/span>"],"slug":"post_translations","name":""},"location":{"linked":["Netherlands<\/a>"],"unlinked":["Netherlands<\/span>"],"slug":"location","name":"Locations"},"internal_archives":{"linked":[],"unlinked":[],"slug":"internal_archives","name":"Internal Archives"}},"series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected\/368700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/selected"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/1760"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media\/513411"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=368700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=368700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=368700"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=368700"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=368700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}