{"id":3314,"date":"2011-02-24T10:00:33","date_gmt":"2011-02-24T15:00:33","guid":{"rendered":"http:\/\/sciencebusiness.technewslit.com\/?p=3314"},"modified":"2011-02-24T10:00:33","modified_gmt":"2011-02-24T15:00:33","slug":"nanotech-emergency-water-treatment-technology-devised","status":"publish","type":"post","link":"https:\/\/technewslit.com\/sciencebusiness\/?p=3314","title":{"rendered":"Nanotech Emergency Water Treatment Technology Devised"},"content":{"rendered":"<figure id=\"attachment_352\" aria-describedby=\"caption-attachment-352\" style=\"width: 200px\" class=\"wp-caption alignright\"><a href=\"http:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2010\/08\/E_coli_ARS_WMC_200.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-352\" title=\"E_coli_ARS_WMC_200\" src=\"http:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2010\/08\/E_coli_ARS_WMC_200.jpg\" alt=\"E coli bacteria magnified (ARS\/Wikimedia Commons)\" width=\"200\" height=\"200\" srcset=\"https:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2010\/08\/E_coli_ARS_WMC_200.jpg 200w, https:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2010\/08\/E_coli_ARS_WMC_200-150x150.jpg 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a><figcaption id=\"caption-attachment-352\" class=\"wp-caption-text\">E coli bacteria magnified (USDA Agricultural Research Service\/Wikimedia Commons)<\/figcaption><\/figure>\n<p>Chemistry researchers at <a href=\"http:\/\/www.mcgill.ca\/newsroom\/news\/item\/?item_id=172013\">McGill University<\/a> in Montreal, Canada have developed a technology for a cheap, portable, paper-based water treatment system when disasters like floods or earthquakes strike. The team&#8217;s findings were published earlier this month in the <a href=\"http:\/\/pubs.acs.org\/doi\/abs\/10.1021\/es103302t?journalCode=esthag\"><em>Journal of Environmental Science and Technology<\/em><\/a> (paid subscription required).<\/p>\n<p>The researchers, led by industrial chemistry professor <a href=\"http:\/\/www.mcgill.ca\/pprc\/members\/gray\/\">Derek Gray<\/a>, found a way of coating paper filters with silver nanoparticles. Gray and graduate student Theresa Dankovich, coated hand-sized sheets of absorbent porous paper, similar to blotter paper, with silver nanoparticles and then poured live <em>E. coli<\/em> and <em>E. faecalis<\/em> bacteria through it.<\/p>\n<p><em>E. coli<\/em> and <em>E. faecalis<\/em> bacteria are found in polluted drinking water and can cause intestinal diseases. Nanoparticles are pieces of matter produced at nanoscale size; 1 nanometer equals 1 billionth of a meter.<\/p>\n<p>The results indicate that when the paper with even a small amount of silver &#8212; 5.9 milligrams of silver per dry gram of paper &#8212; the filter is able to kill nearly all the bacteria and produce water that meets the standards set by the U.S. Environmental Protection Agency. Gray&#8217;s team also found minimal loss of the added silver nanoparticles when used to filter the bacteria-laden water samples.<\/p>\n<p>The nanoparticle-filter technology was tested only in the lab. The authors note that it could be developed into a solution for emergency situations, but probably not for long-term community needs.<\/p>\n<p>Read more: <a href=\"http:\/\/sciencebusiness.technewslit.com\/?p=913\">Solar Powered Water Purifier Developed for Disaster Relief<\/a><\/p>\n<p style=\"text-align: center;\">*\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0 *<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chemistry researchers at McGill University in Montreal, Canada have developed a technology for a cheap, portable, paper-based water treatment system when disasters like floods or earthquakes strike. The team&#8217;s findings were published earlier this month in the Journal of Environmental Science and Technology (paid subscription required). The researchers, led by industrial chemistry professor Derek Gray, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[56,64,43,18,105,26,101],"class_list":["post-3314","post","type-post","status-publish","format-standard","hentry","category-products","tag-canada","tag-life-sciences","tag-materials-science","tag-nanotechnology","tag-physical-sciences","tag-university","tag-water"],"_links":{"self":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/3314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3314"}],"version-history":[{"count":3,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/3314\/revisions"}],"predecessor-version":[{"id":3317,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/3314\/revisions\/3317"}],"wp:attachment":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}