{"id":3433,"date":"2021-09-13T17:20:47","date_gmt":"2021-09-13T15:20:47","guid":{"rendered":"https:\/\/equipes.lps.u-psud.fr\/matrix\/?page_id=3433"},"modified":"2021-10-11T18:06:08","modified_gmt":"2021-10-11T16:06:08","slug":"inorganic-colloids-and-hybrid-materials","status":"publish","type":"page","link":"https:\/\/equipes.lps.u-psud.fr\/matrix\/inorganic-colloids-and-hybrid-materials\/","title":{"rendered":"Inorganic colloids and hybrid materials"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><span style=\"text-decoration: underline\">Members<\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Permanent members<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Patrick Davidson<\/li><li>Cyrille Hamon<\/li><li>Marianne Imp\u00e9ror-Clerc<\/li><li>Brigitte Pansu<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Postdocs &amp; PhD<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Karin El Rifaii (PhD)<\/li><li>Jieli Lyu (PhD)<\/li><li>Camille Mahyaoui (PhD)<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Former team members<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"text-decoration: underline\">Research thematics<\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Organized nanoparticles<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Recent developments in &#8220;green chemistry&#8221; allow the elaboration of stable colloidal suspensions of anisotropic nanoparticles which self-organize into&nbsp;<strong>liquid crystalline phases<\/strong>&nbsp;with very rich behavior&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>A nematic phase of goethite nanorods has a collective diffusion coefficient that decreases at large space scales&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article1705\">[1]<\/a>.<\/li><li>The aqueous suspensions of some natural clays exhibit a nematic liquid-crystalline phase that aligns easily under electric field&nbsp;<a href=\"https:\/\/www.equipes.lps.u-psud.fr\/matrix\/spip.php?article2417\">[2]<\/a>.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The self-assembly properties of semi-conducting nanoplatelets in solution is very sensitive to their thickness&nbsp;: thin platelets curl up into multi-walled tubes, while thicker ones form stacks&nbsp;<a href=\"https:\/\/www.equipes.lps.u-psud.fr\/matrix\/spip.php?article2421\">[3]<\/a>. These anisotropic nanoparticles exhibit exceptional optical properties that may be useful in opto-electronic devices such as LEDs or for building photo-voltaic cells.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Doped mesophases<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"227\" height=\"151\" src=\"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-content\/uploads\/sites\/12\/2021\/09\/Dopedmeso.jpg\" alt=\"\" class=\"wp-image-3434\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Mineral nanoparticules have also been used to formulate organic\/inorganic&nbsp;<strong>hybrid systems<\/strong>&nbsp;(doped mesophases). The aim is to control the distribution and orientation of the nano-objects within a matrix with tunable mechanical behavior by using self-organized systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The inclusions are chosen as a functionof their specific properties (catalytic, photo-reductive, photo-catalytic, optical etc.) or to probe the physical properties of the host phases&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Small inorganic and hydrophobic particles inserted within surfactant bilayers repel one another&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article1227\">[4]<\/a>&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article1897\">[5]<\/a>, in contrast with the predictions of simplified elastic theories. This interaction renders gold nanoparticles easier to stabilize within these matrices&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article1897\">[5]<\/a>&nbsp;and may have profound consequences for the interaction of membrane proteins&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article2226\">[6]<\/a>.<\/li><li>By inserting goethite nanorods in a lamellar phase we obtain a system with composite nematic\/smectic symmetry, easy to align and responsive to an external magnetic field&nbsp;<a href=\"http:\/\/www.lps.u-psud.fr\/spip.php?article1642\">[7]<\/a>.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Members Permanent members Patrick Davidson Cyrille Hamon Marianne Imp\u00e9ror-Clerc Brigitte Pansu Postdocs &amp; PhD Karin El Rifaii (PhD) Jieli Lyu (PhD) Camille Mahyaoui (PhD) Former team members Research thematics Organized &#8230;<\/p>\n","protected":false},"author":25,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3433","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/pages\/3433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/comments?post=3433"}],"version-history":[{"count":3,"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/pages\/3433\/revisions"}],"predecessor-version":[{"id":3605,"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/pages\/3433\/revisions\/3605"}],"wp:attachment":[{"href":"https:\/\/equipes.lps.u-psud.fr\/matrix\/wp-json\/wp\/v2\/media?parent=3433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}