{"id":143804,"date":"2014-01-31T18:46:29","date_gmt":"2014-01-31T20:46:29","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=143804"},"modified":"2014-01-31T18:46:29","modified_gmt":"2014-01-31T20:46:29","slug":"magnetic-force-bends-film","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/magnetic-force-bends-film\/","title":{"rendered":"Magnetic force bends film"},"content":{"rendered":"<p>Researchers from five institutions in S\u00e3o Paulo have developed a potentially biocompatible material that is bent by a magnetic field. The new material is composed of two biocompatible polymers \u2013 natural rubber latex, which has wound-healing properties, and carboxymethyl chitosan, a bactericidal polysaccharide obtained from the shells of crustaceans \u2013 plus magnetite nanoparticles. Using these compounds, chemist Celina Miyazaki produced nanostructured films that were deposited in extremely thin layers. She applied this material to flexible substrates and in laboratory tests proved that it was possible to bend the substrate in response to a magnetic field (<i>International Journal of Molecular Sciences<\/i>, June 2013). \u201cThe initial idea was to apply the films to endoscopy catheters and tubes to help guide them by relying on an external magnetic field,\u201d Miyazaki says. In principle, the new flexible material could be used in artificial muscles. \u201cArtificial muscles are now controlled by the passage of an electric current, which can damage the system,\u201d explains physicist Osvaldo de Oliveira Junior, of the University of S\u00e3o Paulo S\u00e3o Carlos (USP S\u00e3o Carlos), who coordinates the group. Before moving on to possible applications, the material must undergo toxicity testing.<\/p>\n","protected":false},"excerpt":{"rendered":"Biocompatible material bends under magnetic fields","protected":false},"author":475,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[168],"tags":[249],"coauthors":[785],"class_list":["post-143804","post","type-post","status-publish","format-standard","hentry","category-technoscience","tag-nanotechnology"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/143804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=143804"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/143804\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=143804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=143804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=143804"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=143804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}