{"id":1996,"date":"2023-06-09T00:42:05","date_gmt":"2023-06-08T16:42:05","guid":{"rendered":"http:\/\/fpisc.ustc.edu.cn\/?page_id=1996"},"modified":"2023-06-09T00:42:39","modified_gmt":"2023-06-08T16:42:39","slug":"speaker-supervisor-prof-peng-cheng-hui","status":"publish","type":"page","link":"http:\/\/fpisc.ustc.edu.cn\/?page_id=1996","title":{"rendered":"Speaker &#038; Supervisor : Prof. PENG Cheng-hui"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1996\" class=\"elementor elementor-1996\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d19f56b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d19f56b\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1fe9f16\" data-id=\"1fe9f16\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-94754ab elementor-widget elementor-widget-text-editor\" data-id=\"94754ab\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 22-05-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><!-- wp:paragraph {\"align\":\"center\",\"style\":{\"typography\":{\"fontSize\":\"35px\"},\"color\":{\"gradient\":\"linear-gradient(90deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%)\"}},\"textColor\":\"white\"} --><\/p>\n<p class=\"has-text-align-center has-white-color has-text-color has-background\" style=\"background: linear-gradient(90deg,rgba(6,147,227,1) 0%,#9b51e0 100%); font-size: 35px;\">Speaker &amp; Supervisor<\/p>\n<p><!-- \/wp:shortcode --><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-464d0beb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"464d0beb\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7b44949d\" data-id=\"7b44949d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26ce407a elementor-widget elementor-widget-text-editor\" data-id=\"26ce407a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><!-- wp:essential-blocks\/team-member {\"blockId\":\"eb-team-member-oo0w1ky\",\"blockMeta\":{\"desktop\":\" div.eb-team-wrapper h3, div.eb-team-wrapper h4, div.eb-team-wrapper p, div.eb-team-wrapper ul { margin: 0; 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} .eb-team-member-oo0w1ky.eb-team-wrapper .contents { text-align: left; box-sizing: border-box; } .eb-team-member-oo0w1ky.eb-team-wrapper .contents .name { font-size: 20px; padding-top: 20px; padding-bottom: 15px; color: #4b4b4b; } .eb-team-member-oo0w1ky.eb-team-wrapper .contents .job_title { font-size: 16px; color: #4b4b4b; } .eb-team-member-oo0w1ky.eb-team-wrapper .contents .description { color: rgba(41,38,38,1); padding-top: 15px; padding-bottom: 20px; font-size: 16px; } .eb-team-member-oo0w1ky.eb-team-wrapper .contents .content_separator { border: none; margin: auto; border-bottom: 1px solid #84AFFF; width:70px; border-bottom-width:3px; } \",\"tab\":\" \",\"mobile\":\" \"},\"name\":\"Prof. LU Zheng-tian\",\"jobTitle\":\"Title: Identifying Old Ice and Water with Single-Atom Counting\",\"description\":\"\\u003cstrong\\u003eAbstract:\\u003c\/strong\\u003eThe long-lived noble-gas isotope\u00a0\\u003csup\\u003e81\\u003c\/sup\\u003eKr is the ideal tracer for old water and ice with ages of 0.1 \u2013 1 million years, a range beyond the reach of\u00a0\\u003csup\\u003e14\\u003c\/sup\\u003eC. \u00a0\\u003csup\\u003e81\\u003c\/sup\\u003eKr-dating, a concept pursued over the past five decades, is now available to the earth science community at large. \u00a0This is made possible by the development of the Atom Trap Trace Analysis (ATTA) method, in which individual atoms of the desired isotope are captured and detected. \u00a0ATTA possesses superior selectivity, and is thus far used to analyze the environmental radioactive isotopes\u00a0\\u003csup\\u003e81\\u003c\/sup\\u003eKr,\u00a0\\u003csup\\u003e85\\u003c\/sup\\u003eKr, and\u00a0\\u003csup\\u003e39\\u003c\/sup\\u003eAr. \u00a0These three isotopes have extremely low isotopic abundances in the range of 10\\u003csup\\u003e-17\\u003c\/sup\\u003e\u00a0to 10\\u003csup\\u003e-11\\u003c\/sup\\u003e, and cover a wide range of ages and applications. \u00a0In collaboration with earth scientists, we are dating groundwater and mapping its flow in major aquifers around the world.\u00a0 We are also dating old ice from the deep ice cores of Antarctica, Greenland, and the Tibetan Plateau. \u00a0For an update on this worldwide effort, please google \u201cATTA Primer\u201d.\",\"imageAlt\":\"\",\"descsColor\":\"rgba(41,38,38,1)\",\"showSocials\":false,\"profilesOnly\":[{\"title\":\"\",\"icon\":\"fab fa-facebook-f\",\"link\":\"\",\"linkOpenNewTab\":false},{\"title\":\"\",\"icon\":\"fab fa-twitter\",\"link\":\"\",\"linkOpenNewTab\":false},{\"title\":\"\",\"icon\":\"fab fa-linkedin-in\",\"link\":\"\",\"linkOpenNewTab\":false},{\"title\":\"\",\"icon\":\"fab fa-youtube\",\"link\":\"\",\"linkOpenNewTab\":false}],\"socialDetails\":[{\"title\":\"\",\"icon\":\"fab fa-facebook-f\",\"color\":\"#fff\",\"bgColor\":\"#3b5998\",\"link\":\"\",\"linkOpenNewTab\":false,\"isExpanded\":false},{\"title\":\"\",\"icon\":\"fab fa-twitter\",\"color\":\"#fff\",\"bgColor\":\"#1da1f2\",\"link\":\"\",\"linkOpenNewTab\":false,\"isExpanded\":false},{\"title\":\"\",\"icon\":\"fab fa-linkedin-in\",\"color\":\"#fff\",\"bgColor\":\"#0077b5\",\"link\":\"\",\"linkOpenNewTab\":false,\"isExpanded\":false},{\"title\":\"\",\"icon\":\"fab fa-youtube\",\"color\":\"#fff\",\"bgColor\":\"#cd201f\",\"link\":\"\",\"linkOpenNewTab\":false,\"isExpanded\":false}],\"contentsAlign\":\"left\",\"preset\":\"preset5\",\"showCSeparator\":true,\"imgBd_borderColor\":\"undefined\",\"commonStyles\":{\"desktop\":\" .wp-admin .eb-parent-eb-team-member-oo0w1ky { display: block; opacity: 1; } .eb-parent-eb-team-member-oo0w1ky { display: block; } \",\"tab\":\" .editor-styles-wrapper.wp-embed-responsive .eb-parent-eb-team-member-oo0w1ky { display: block; opacity: 1; } .eb-parent-eb-team-member-oo0w1ky { display: block; } \",\"mobile\":\" .editor-styles-wrapper.wp-embed-responsive .eb-parent-eb-team-member-oo0w1ky { display: block; opacity: 1; } .eb-parent-eb-team-member-oo0w1ky { display: block; } \"}} --><\/p>\n<div class=\"wp-block-essential-blocks-team-member\">\n<div class=\"eb-parent-wrapper eb-parent-eb-team-member-oo0w1ky \">\n<div class=\"eb-team-member-oo0w1ky eb-team-wrapper\">\n<div class=\"eb-team-inner\">\n<div class=\"image\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1861\" src=\"http:\/\/fpisc.ustc.edu.cn\/wp-content\/uploads\/2023\/06\/\u5f6d\u6668\u6656-1.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"http:\/\/fpisc.ustc.edu.cn\/wp-content\/uploads\/2023\/06\/\u5f6d\u6668\u6656-1.png 300w, http:\/\/fpisc.ustc.edu.cn\/wp-content\/uploads\/2023\/06\/\u5f6d\u6668\u6656-1-150x150.png 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div>\n<div class=\"contents\">\n<div class=\"texts\">\n<h3 class=\"name\">Prof. PENG Chen-hui<\/h3>\n<h4 class=\"job_title\">Title:\u00a0 \u00a0 <strong>Programmable Active Matter<\/strong><\/h4>\n<hr class=\"content_separator\" \/>\n<h4 class=\"job_title\">Abstract:<\/h4>\n<p style=\"font-weight: 400;\">Active matter is the marvel of nature. The challenge lies in commanding its chaotic behavior. By dispersing swimming bacteria in a liquid crystalline (LC) environment with spatially varying orientation defined by the liquid crystalline polymer networks, we demonstrate control over the distribution of bacterial concentration, as well as the geometry and polarity of their trajectories. Bacteria recognize subtle differences in the topological structures in the LC, engaging in bipolar swimming in regions of pure splay and bend but switching to unipolar swimming in mixed splay-bend regions. In the second part, I will talk about how to remotely programm the reversible and complex morphing in the monolithic liquid crystalline polymer networks, namely liquid crystal elastomer(LCE), by integrating kirigami designs with topological structures. This shape-morphing arises due to the interplay between the custom-cut sample geometry and topology in the material microstructure. We obtained a rich variety of out-of-plane shape transformations including auxetic structures and undulating morphologies by combining different topological structures and kirigami geometries. Different functionalities such as bio-inspired fluttering butterfly, flower bud, dual-rotation light-mill and dual-mode locomotion are realized. Our programmable active matter will open opportunities in future developments of multi-functional devices for soft-robotics, flexible electronics, and biomedicine.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>Curriculum Vitae\uff1a<\/h4>\n<h5><strong>Education:<\/strong>\u00a0<\/h5>\n<p>Ph.D. in Chemical Physics\u00a0\u00a0\u00a0Liquid Crystal Institute of Kent State University, USA\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a005\/2017<\/p>\n<h5><strong>Employment:<\/strong><\/h5>\n<p><span lang=\"EN-US\">Department of Physics, USTC, China\u00a0 \u00a0 \u00a0 Professor\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02022-Current<\/span><\/p>\n<p><span lang=\"EN-US\">Department of Physics, University of Memphis, USA\u00a0\u00a0\u00a0\u00a0Assistant Professor, 2018-2022<\/span><\/p>\n<p><span lang=\"EN-US\">Department of Biological Engineering, MIT, USA\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Postdoctoral Fellow, 2017-2018<\/span><\/p>\n<h6>Research interests:<\/h6>\n<ol>\n<li style=\"font-weight: 400;\">Collective behavior of bacteria and cell monolayer interfacing with anisotropic media<\/li>\n<li style=\"font-weight: 400;\">Non-equilibrium dynamics of molecular and colloidal self-assembly<\/li>\n<li style=\"font-weight: 400;\">Programmable liquid crystal elastomer with kirigami and origami designs<\/li>\n<\/ol>\n<h6 style=\"font-weight: 400;\"><strong>Selected recent publications:<\/strong><\/h6>\n<ol>\n<li style=\"font-weight: 400;\">J. Jiang, X. Wang, O. Akomolafe, W. Tang, Z. Asilehan, K. Ranabhat, R. Zhang and<strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">Chenhui Peng<\/strong>*, Collective transport and reconfigurable assembly of nematic colloids by light-driven cooperative molecular reorientations,<em>PNAS<\/em>, 120, e2221718120 (2023)<\/li>\n<li style=\"font-weight: 400;\">J. Jiang, K. Ranabhat, X. Wang, H. Rich, R. Zhang and<strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">Chenhui Peng<\/strong><strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">*<\/strong>, Active transformations of topological structures in light-driven nematic disclination networks,<em>PNAS<\/em>,\u00a0119,\u00a0e2122226119.\u00a0(2022)<\/li>\n<li style=\"font-weight: 400;\"><strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">Chenhui Peng<\/strong>, T. Turiv, Y. Guo, Q.-H. Wei, and O. D. Lavrentovich<strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">*<\/strong>, &#8220;Command of active matter by topological defects and patterns,&#8221;<em>Science,<\/em>\u00a0354, 882 (2016).<\/li>\n<li style=\"font-weight: 400;\"><strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">Chenhui Peng<\/strong>, T. Turiv, Y. Guo, S. V. Shiyanovskii, Q.-H. Wei, and O. D. Laverntovich<strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">*<\/strong>, &#8220;Control of colliodal placement and assembly by modulated molecular orientaion in nematic cells,&#8221;<em>Science Advances,<\/em>\u00a02, e1600932 (2016).<\/li>\n<li style=\"font-weight: 400;\"><strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">Chenhui Peng<\/strong>, Y. Guo, T. Turiv, Miao Jiang, Q.-H. Wei, and O. Lavrentovich<strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">*<\/strong>, &#8220;Patterning of lyotropic chromonic liquid crystals by photoalignment with photonic metamasks,&#8221;<em>Advanced Materials,<\/em><strong style=\"font-weight: var(--wp--custom--font-weight--medium);\">\u00a0<\/strong>29, 1606112 (2017).<\/li>\n<\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Speaker &amp; Supervisor<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-1996","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/pages\/1996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1996"}],"version-history":[{"count":3,"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/pages\/1996\/revisions"}],"predecessor-version":[{"id":1999,"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=\/wp\/v2\/pages\/1996\/revisions\/1999"}],"wp:attachment":[{"href":"http:\/\/fpisc.ustc.edu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}