{"id":1703,"date":"2019-10-23T00:28:18","date_gmt":"2019-10-23T04:28:18","guid":{"rendered":"https:\/\/cbe.ncsu.edu\/velevgroup\/?page_id=1703"},"modified":"2026-04-15T13:28:02","modified_gmt":"2026-04-15T17:28:02","slug":"3d-printing-coating-materials","status":"publish","type":"page","link":"https:\/\/cbe.ncsu.edu\/velevgroup\/research\/3d-printing-coating-materials\/","title":{"rendered":"3D Printing & Coating Materials"},"content":{"rendered":"\n

Research Descriptions<\/span><\/h2>\n\n\n\n
Coatings Summary<\/span><\/h6>\n\n\n\n

As a graduate student Dr. Velev was a key experimental investigator in the team that discovered the method of \u201cconvective assembly\u201d of microparticles in the meniscus of drying water films. The Velev group at NCSU has engineered a convenient and controllable convective assembly apparatus, and used it in the deposition of antireflective, conductive, and functional nanocoatings.<\/p>\n\n\n\n

3D Printing Summary<\/span><\/h6>\n\n\n\n

The Velev group has discovered a new class of materials where ultraflexible filaments are assembled from magnetic nanoparticles wetted by liquid and bound by capillarity. The superparamagnetic nanoparticles used as structural units are covered by condensed lipid films, which form nanocapillary liquid bridges between them. These new soft and magnetically responsive structures can be dynamically reconfigured and used in magnetically self-repairing gels and new types of inks for 3D printing.<\/p>\n\n\n\n

Current Projects<\/span><\/h2>\n\n\n\n

Layer-by-layer deposition of polyelectrolytes to improve oxygen barrier properties<\/strong> Austin Williams<\/a><\/p>\n\n\n\n

Soft dendritic colloids<\/strong> as superhydrophobic and anti-icing surface coatings<\/strong> Austin Williams<\/a><\/p>\n\n\n\n

Fabrication of strong, tough, and transparent polymer composite films with cellulose nanocrystals <\/strong> Seonju Yeo<\/a> <\/p>\n\n\n\n

Coatings based on epoxy\/phenolic resins<\/strong> Yosra Kotb<\/a><\/p>\n\n\n\n

3D printing of magnetically responsive gels <\/strong>Natasha Castellanos<\/a> and Lilian Okello<\/a><\/p>\n\n\n\n

Developing homocomposite thixotropic capillary inks for 3D printing<\/strong> Lilian Okello<\/a><\/p>\n\n\n\n

Previous Projects<\/span><\/h2>\n\n\n\n

Conformation and structuring of polymer molecules in thin films <\/strong>Sabina Islam<\/a><\/p>\n\n\n\n

3D printing of homocomposite materials <\/strong>Sangchul Roh<\/a><\/p>\n\n\n\n

3D printing of composite materials incorporating stimuli-responsive microcapsules<\/strong> Seonju Yeo<\/a><\/p>\n\n\n\n

Representative Publications<\/span><\/h2>\n\n\n\n

Roh, S.; Okello, L. B.; Golbasi, N.; Hankwitz, J. P.; Liu, J. A.-C.; Tracy, J. B.; Velev, O. D. 3D-Printed Silicone Soft Architectures with Programmed Magneto-Capillary Reconfiguration. <\/a>Advanced Materials Technologies<\/a><\/em> 2019<\/a><\/strong>, 1800528.<\/a> <\/p>\n\n\n\n

Roh, S.; Parekh, D.P.; Bharti, B.; Stoyanov, S.D.; Velev, O.D. 3D Printing by multiphase silicone\/water capillary inks. Advanced Materials<\/em> 2017.<\/strong> DOI: 10.1002\/adma.201701554.<\/a> <\/p>\n\n\n\n

Bharti, B.; Rutkowski, D.; Han, K.; Kumar, A.U.; Hall, C.K.; Velev, O.D. Capillary Bridging as a Tool for Assembling Discrete Clusters of Patchy Particles. Journal of the American Chemical Society<\/em> 2016<\/strong>, 138 (45)<\/em>, 14948-14953.<\/a> <\/p>\n\n\n\n

Bharti, B.; Fameau, A.-L.; Rubinstein, M.; Velev, O.D. Nanocapillarity-mediated Magnetic Assembly of Nanoparticles into Ultraflexible Filaments and Reconfigurable Networks. Nat. Mater.<\/em> 2015<\/strong>. DOI: 10.1038\/nmat4364.<\/a> <\/p>\n\n\n\n

Bharti, B.; Fameau, A.-L.; Velev, O. D. Magnetophoretic assembly of flexible nanoparticles\/lipid microfilaments. Faraday Discuss.<\/em> 2015<\/strong>, 181, 437.<\/a> <\/p>\n\n\n\n

Jerrim, L. B.; Velev, O. D. Deposition of coatings from live yeast cells and large particles by \u201cconvective-sedimentation\u201d assembly. Langmuir<\/em> 2009<\/strong>, 25<\/em>, 5692\u20135702.<\/a> <\/p>\n\n\n\n

Prevo, B. G.; Hon, E. W.; Velev, O. D. Assembly and characterization of colloid-based antireflective coatings on multicrystalline silicon solar cells.\u00a0Journal of Materials Chemistry<\/em>\u00a02007<\/strong>,\u00a017<\/em>, 791\u2013799.<\/p>\n\n\n\n

Kuncicky, D. M.; Naik, R. R.; Velev, O. D. Rapid deposition and long-range alignment of nanocoatings and arrays of electrically conductive wires from tobacco mosaic virus. Small<\/em> 2006<\/strong>, 2<\/em>, 1462\u20131466.<\/a> <\/p>\n\n\n\n

Prevo, B. G.; Fuller, J. C.; Velev, O. D. Rapid deposition of gold nanoparticle films with controlled thickness and structure by convective assembly. Chemistry of Materials<\/em> 2005<\/strong>, 17<\/em>, 28\u201335.<\/a> <\/p>\n\n\n\n

Prevo, B. G.; Velev, O. D. Controlled, rapid deposition of structured coatings from micro- and nanoparticle suspensions. Langmuir<\/em> 2004<\/strong>, 20<\/em>, 2099\u20132107.<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

Research Descriptions Coatings Summary As a graduate student Dr. Velev was a key experimental investigator in the team that discovered the method of \u201cconvective assembly\u201d…<\/p>\n","protected":false},"author":197,"featured_media":0,"parent":15,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-fullwidth.php","meta":{"_acf_changed":false,"first_name":[],"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-1703","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/1703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/users\/197"}],"replies":[{"embeddable":true,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/comments?post=1703"}],"version-history":[{"count":4,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/1703\/revisions"}],"predecessor-version":[{"id":2878,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/1703\/revisions\/2878"}],"up":[{"embeddable":true,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/15"}],"wp:attachment":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/media?parent=1703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}