{"id":6,"date":"2026-05-30T06:46:12","date_gmt":"2026-05-30T06:46:12","guid":{"rendered":"https:\/\/smartwiches.project.uoi.gr\/?page_id=6"},"modified":"2026-06-05T09:21:35","modified_gmt":"2026-06-05T09:21:35","slug":"home","status":"publish","type":"page","link":"https:\/\/smartwiches.project.uoi.gr\/","title":{"rendered":"Home"},"content":{"rendered":"\n<div class=\"wp-block-group section-bg has-neve-link-color-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group narrow-text has-nv-site-bg-color has-text-color has-link-color wp-elements-ec721d9e40753aceaaeb1e9f76fb9858\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-center\">ID<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Additively manufactured Smart nano-enabled thermoplastic Triply Periodic Minimal Surface cores for Energy-autonomous Sandwich composite panels &#8211; <strong>Smartwiches<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group ticss-9ddbf488\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li><strong>Project Number:<\/strong> 28695<\/li>\n\n\n\n<li><strong>Scientific Area:<\/strong> Engineering Sciences &amp; Technology<\/li>\n\n\n\n<li><strong>Scientific Field:<\/strong> Chemical and Materials engineering<\/li>\n\n\n\n<li><strong>Scientific Subfield:<\/strong> Materials engineering<\/li>\n\n\n\n<li><strong>Total Budget:<\/strong> 99550.00 \u20ac<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\">Inspired by nature<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Biological materials such as trabecular bone, coral skeletons, nacre (seashell), plant vascular tissues and diatom silica structures exhibit hierarchical porosity and optimized stiffness-to-weight ratios <strong>(Figure 1)<\/strong>.<br>These architectures have been widely reported in the biomimetics and cellular solids literature, demonstrating that natural systems achieve multifunctionality through geometric optimization rather than material complexity [Lee et al. Controlled Unusual Stiffness of Mechanical Metamaterials, 6:20312 10.1038\/srep20312].<\/p>\n\n\n\n<div class=\"wp-block-group ticss-b5b801c2\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1066\" height=\"317\" src=\"https:\/\/smartwiches.project.uoi.gr\/wp-content\/uploads\/2026\/05\/Picture1.png\" alt=\"\" class=\"wp-image-97\"\/><\/figure>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 1.<\/strong> Nature-inspired cellular architectures.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Triply Periodic Minimal Surface TPMS geometries such as Gyroid, Schwarz Primitive (P), Diamond, <br>I-WP and Neovius surfaces are mathematically defined bicontinuous structures characterized by zero mean curvature and periodicity in three dimensions <strong>(Figure 2)<\/strong>. These architectures have been extensively studied for their mechanical efficiency, transport properties, and energy absorption capability, particularly in the context of cellular metamaterials and biomedical scaffolds [Maskery et al. Insights into the mechanical properties of several triply periodic minimal surface lattice structures made by polymer additive manufacturing, Polymer 152 (2018) 62-71].<br><strong>Additive Manufacturing enables the physical realization of these mathematically defined surfaces, allowing controlled tuning of porosity, anisotropy and multifunctional performance for advanced structural applications.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group ticss-b5b801c2\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1204\" height=\"317\" src=\"https:\/\/smartwiches.project.uoi.gr\/wp-content\/uploads\/2026\/05\/Picture2.png\" alt=\"\" class=\"wp-image-102\"\/><\/figure>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 2.<\/strong> Triply Periodic Minimal Surface (TPMS) architectures for additively manufactured multifunctional materials.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\">Summary<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Smartwiches<\/strong> is a multi-disciplinary 24-month project perfectly aligned with the HFRI\u2019s funding policy of 4th Call for H.F.R.I. Research Projects to support Post-Doctoral Researchers aiming to deliver fully 3D printed composite sandwich panels with tailored mechanical performance, as energy harvesters, which will operate independently to send information for safety via activating commercial sensors in real-time at their operational environment. The energy autonomous concept relying on the vision of smart maintenance-free sustainable lightweight structures and constructions, since self-powered IoT (Internet of Things) modules will promote the secure operation of functional components without unforeseen structural aggravation, as for instance [1-6].<\/p>\n\n\n\n<p class=\"has-text-align-center has-small-font-size wp-block-paragraph\">[1] Karalis et al. A carbon fiber thermoelectric generator integrated as a lamina within an 8-ply laminate epoxy composite: Efficient thermal energy harvesting by advanced structural materials. Applied Energy. 2019;253:113512. <br><a href=\"https:\/\/doi.org\/10.1016\/j.apenergy.2019.113512\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1016\/j.apenergy.2019.113512<\/a>.<br>[2] Karalis et al. Advanced Glass Fiber Polymer Composite Laminate Operating as a Thermoelectric Generator: A Structural Device for Micropower Generation and Potential Large-Scale Thermal Energy Harvesting. Applied Materials &amp; Interfaces. 2021, 13 (20), 24138\u201324153. <br><a href=\"https:\/\/doi.org\/10.1021\/acsami.1c04527\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1021\/acsami.1c04527<\/a>.<br>[3] Karalis et al. Carbon fiber\/epoxy composite laminates as through-thickness thermoelectric generators. Compos. Sci. Technol. 220 (2022) 109291.<br> <a href=\"https:\/\/doi.org\/10.1016\/j.compscitech.2022.109291\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1016\/j.compscitech.2022.109291<\/a>.<br>[4] Karalis et al. Carbon nanotube fibers as efficient p- and n-type thermoelements within Geopolymers: A route for Large-scale Thermal energy harvesting from building structures. Cem. Concr. Compos. 153 (2024) 105699.<br> <a href=\"https:\/\/doi.org\/10.1016\/j.cemconcomp.2024.105699\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1016\/j.cemconcomp.2024.105699<\/a>.<br>[5] Karalis et al. A high-performance thermoelectric generator device based on 3D printed TPU gyroid structures infiltrated with p- and n-type single-walled carbon nanotubes. Chemical Engineering Journal (2025) 166140.<br> <a href=\"https:\/\/doi.org\/10.1016\/j.cej.2025.166140\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1016\/j.cej.2025.166140<\/a>.<br>[6] Karalis et al. Multifunctional carbon fibre reinforced polymer (CFRP) composites for sustainable and smart civil infrastructure: A comprehensive review. Sustainable Materials and Technologies (2025) e01594.<br> <a href=\"https:\/\/doi.org\/10.1016\/j.susmat.2025.e01594\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1016\/j.susmat.2025.e01594<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\">Visual<\/h2>\n\n\n\n<div class=\"wp-block-group ticss-b5b801c2\" style=\"padding-top:0;padding-bottom:0\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-image ticss-a1efc1c9\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"330\" height=\"406\" src=\"https:\/\/smartwiches.project.uoi.gr\/wp-content\/uploads\/2026\/05\/PDF_file_icon.svg.png\" alt=\"\" class=\"wp-image-123\" style=\"width:75px\"\/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center ticss-2899444c has-medium-font-size wp-block-paragraph\"><strong>Poster<\/strong> of Smartwiches project<\/p>\n\n\n\n<div style=\"text-align:center;\">\n    <a href=\"https:\/\/smartwiches.project.uoi.gr\/wp-content\/uploads\/2026\/05\/HFRI-Smartwiches-poster.pdf\" download\n       style=\"display:inline-block;\n              padding:10px 20px;\n              background:#2f80ed;\n              color:white;\n              text-decoration:none;\n              border-radius:5px;\">\n        Download\n    <\/a>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\">Acknowledgement for Funding<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>This research was supported by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the \u201c4th Call for H.F.R.I. Research Projects to support Post-Doctoral Researchers\u201d (Project Number: 28695).<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group ticss-b5b801c2\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"300\" src=\"https:\/\/smartwiches.project.uoi.gr\/wp-content\/uploads\/2026\/05\/Picture3.jpg\" alt=\"\" class=\"wp-image-119\"\/><\/figure>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>ID Additively manufactured Smart nano-enabled thermoplastic Triply Periodic Minimal Surface cores for Energy-autonomous Sandwich composite panels &#8211; Smartwiches Inspired by nature Biological materials such as trabecular bone, coral skeletons, nacre (seashell), plant vascular tissues and diatom silica structures exhibit hierarchical porosity and optimized stiffness-to-weight ratios (Figure 1).These architectures have been widely reported in the biomimetics&hellip;&nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"full-width","neve_meta_container":"full-width","neve_meta_enable_content_width":"on","neve_meta_content_width":100,"neve_meta_title_alignment":"center","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"off","neve_meta_disable_footer":"","neve_meta_disable_title":"off","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-6","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/pages\/6","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/comments?post=6"}],"version-history":[{"count":45,"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/pages\/6\/revisions"}],"predecessor-version":[{"id":194,"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/pages\/6\/revisions\/194"}],"wp:attachment":[{"href":"https:\/\/smartwiches.project.uoi.gr\/index.php\/wp-json\/wp\/v2\/media?parent=6"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}