{"id":644423,"date":"2013-02-27T21:49:32","date_gmt":"2013-02-28T02:49:32","guid":{"rendered":"http:\/\/blog.ted.com\/?p=70320"},"modified":"2013-02-27T22:03:56","modified_gmt":"2013-02-28T03:03:56","slug":"a-local-bacteria-to-solve-a-local-problem-miranda-wang-and-jeanny-yao-at-ted2013","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/644423","title":{"rendered":"A local bacteria to solve a local problem: Miranda Wang and Jeanny Yao at TED2013"},"content":{"rendered":"
\"Photo:<\/p>\n

Photo: James Duncan Davidson<\/p>\n<\/div>\n

Miranda Wang and Jeanny Yao were the winners in British Columbia of the\u00a02012 Sanofi BioGENEius Challenge Canada<\/a>.\u00a0After a visit to a Vancouver waste station, Wang and Yao were\u00a0blown away\u00a0by the enormous amount of waste in plastic. Plastic is very hard to sort for recycling — all types have a similar density.\u00a0Says Wang, “Plastics are useful,\u00a0but the downside of this convenience is that plastics cause serious problems like the destruction of ecosystems.”<\/p>\n

So Wang and Yao decided to see if there was a way to break them down … with bacteria! It’s a cool idea, but difficult. They made a proposal in grade 12: Find a bacteria from local river to metabolize phthalates. Phthalates are a component of plastic, but they’re not well bonded, so they easily pollute and are found in products like babies’ toys, cosmetics, food wraps. In fact, the EPA has classified them as a top-priority pollutant.<\/p>\n

Wang and Yao figured that if there were places along the local river that were contaminated, then maybe bacteria have evolved to degrade them. So they met a professor who gave them lab space and set to work. They collected samples from three sites, and enriched cultures with phthalates as the only food source. And they discovered that “bacteria can do it” — several local species had indeed evolved to metabolize phthalates. They\u00a0DNA-sequenced the bacteria, and found several that were not previously associated with phthalate\u00a0degradation. That’s a real discovery.<\/p>\n

Most interestingly, Wang says, “We found the most efficient degraders came from the local landfill.” Nature was indeed evolving ways of dealing with the problem, one that we could someday use. Yao finishes by noting,\u00a0”We weren’t the first ones to break down phthalates,\u00a0but we were the first ones to look into our local river and find a possible solution to a local problem.”<\/p>\n

\"\"<\/a> \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Photo: James Duncan Davidson Miranda Wang and Jeanny Yao were the winners in British Columbia of the\u00a02012 Sanofi BioGENEius Challenge Canada.\u00a0After a visit to a Vancouver waste station, Wang and Yao were\u00a0blown away\u00a0by the enormous amount of waste in plastic. Plastic is very hard to sort for recycling — all types have a similar density.\u00a0Says […]<\/p>\n","protected":false},"author":7524,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-644423","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/644423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/7524"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=644423"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/644423\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=644423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=644423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=644423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}