{"id":55581,"date":"2022-12-01T17:03:53","date_gmt":"2022-12-01T15:03:53","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=55581"},"modified":"2022-12-01T17:03:53","modified_gmt":"2022-12-01T15:03:53","slug":"these-r-al-sahely-pinces-acoustiques-basees-sur-les-vortex-acoustiques-pour-la-manipulation-selective-3d-et-sans-contact-de-particules-micrometriques-et-de-cellules","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/theses-2022\/these-r-al-sahely-pinces-acoustiques-basees-sur-les-vortex-acoustiques-pour-la-manipulation-selective-3d-et-sans-contact-de-particules-micrometriques-et-de-cellules.html","title":{"rendered":"THESE : R. AL SAHELY \u2013 Pinces acoustiques bas\u00e9es sur les vortex acoustiques pour la manipulation s\u00e9lective, 3D et sans contact de particules microm\u00e9triques et de cellules"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_tjgljlfn22on\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-55581'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lb57h075-4c7a83c385ba4f6836fefd0988eb31be\">\n#top .av-special-heading.av-lb57h075-4c7a83c385ba4f6836fefd0988eb31be{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-lb57h075-4c7a83c385ba4f6836fefd0988eb31be .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lb57h075-4c7a83c385ba4f6836fefd0988eb31be .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lb57h075-4c7a83c385ba4f6836fefd0988eb31be av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESE : R. AL SAHELY \u2013 Pinces acoustiques bas\u00e9es sur les vortex acoustiques pour la manipulation s\u00e9lective, 3D et sans contact de particules microm\u00e9triques et de cellules <\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong>R. AL SAHELY<\/strong><\/p>\n<p>Soutenance : <strong>31 mars 2022<br \/>\n<\/strong>Th\u00e8se de doctorat en Acoustique, Universit\u00e9 de Lille, ENGSYS Sciences de l\u2019ing\u00e9nierie et des syst\u00e8mes,<\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5>Summary:<\/h5>\n<p>Les pinces acoustiques bas\u00e9es sur les vortex acoustiques focalis\u00e9es ouvrent de nouvelles perspectives pour la manipulation sans contact et s\u00e9lective d\u2019objets millim\u00e9triques \u00e0 microm\u00e9triques, avec une s\u00e9lectivit\u00e9 et des forces appliqu\u00e9es difficilement atteignables avec les autres m\u00e9thodes. La premi\u00e8re d\u00e9monstration du pi\u00e9geage et de la manipulation 3D d\u2019une particule avec des vortex acoustiques a \u00e9t\u00e9 effectu\u00e9e en 2016 avec une matrice de transducteur ultrasonores pilot\u00e9s par une \u00e9lectronique programmable. R\u00e9cemment, il a \u00e9t\u00e9 propos\u00e9 d\u2019utiliser des pinces acoustiques holographiques bas\u00e9es sur des transducteurs interdigit\u00e9s en spirales pour d\u00e9velopper des pinces acoustiques miniaturis\u00e9es compatibles avec un environnement de microscopie standard. Dans cette th\u00e8se, nous avons explor\u00e9 les possibilit\u00e9s offertes par ce type de pince acoustiques pour adresser les probl\u00e8mes suivants. 1) Manipuler s\u00e9lectivement et organiser des cellules humaines avec des forces importantes (200 pN) sans pr\u00e9-marquage et sans affecter la viabilit\u00e9 des cellules. 2) Cr\u00e9er des pinces acoustiques tr\u00e8s haute fr\u00e9quence (250 MHz) avec une forte s\u00e9lectivit\u00e9 et capables de manipuler des microparticules de 4 microns avec des forces de l\u2019ordre du NanoNewton. 4) D\u00e9placer des microparticules en 3D dans un environnement libre et les translater axialement sans d\u00e9placement du transducteur. Ces objectifs ont \u00e9t\u00e9 atteints en d\u00e9veloppant de nouvelles m\u00e9thodes num\u00e9riques et des proc\u00e9dure exp\u00e9rimentales adapt\u00e9es, qui nous ont permis de concevoir des pinces acoustiques avec les capacit\u00e9s recherch\u00e9es. Ce travail ouvre des perspectives dans le domaine de la microbiologie pour \u00e9tudier les interactions cellulaires et leur r\u00e9ponse \u00e0 des sollicitations m\u00e9canique, mais aussi pour la spectroscopie de force acoustique.<\/p>\n<h5>Abstract:<\/h5>\n<p>Acoustic tweezers based on focused acoustic vortices open new perspectives for non-contact and selective manipulation of millimeter to micrometer objects, with selectivity and applied forces not easily achieved with other methods. The first demonstration of trapping and 3D manipulation of a particle with acoustic vortices was performed in 2016 with an array of ultrasound transducers driven by programmable electronics. Recently, holographic acoustic tweezers based on interdigital spiral transducers have been proposed to develop miniaturized acoustic tweezers compatible with a standard microscopy environment. In this thesis, we have explored the possibilities offered by this type of acoustic tweezers to address the following problems. 1) Selectively manipulate and organize human cells with high forces (200 pN) without pre-labeling and without affecting cell viability. 2) Create very high frequency (250 MHz) acoustic tweezers with high selectivity and capable of manipulating 4 micron microparticles with NanoNewton forces. 4) To move microparticles in 3D in a free environment and translate them axially without moving the transducer. These objectives have been achieved by developing new numerical methods and adapted experimental procedures, which allowed us to design acoustic tweezers with the desired capabilities. This work opens perspectives in the field of microbiology to study cellular interactions and their response to mechanical solicitations, but also for acoustic force spectroscopy.<\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[316],"tags":[],"class_list":["post-55581","post","type-post","status-publish","format-standard","hentry","category-theses-2022"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=55581"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55581\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=55581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=55581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=55581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}