{"id":871,"date":"2017-11-01T11:41:40","date_gmt":"2017-11-01T15:41:40","guid":{"rendered":"https:\/\/cbe.ncsu.edu\/velevgroup\/?page_id=871"},"modified":"2020-05-07T09:57:09","modified_gmt":"2020-05-07T13:57:09","slug":"austin-williams","status":"publish","type":"page","link":"https:\/\/cbe.ncsu.edu\/velevgroup\/members\/austin-williams\/","title":{"rendered":"Austin Williams"},"content":{"rendered":"\n
ahwilli5@ncsu.edu<\/a>

M.S., Chemical Engineering, 2018
North Carolina State University<\/span><\/p>

B.S., Chemistry, 2016
Birmingham-Southern College<\/p>

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Research Focus #1: Soft Dendritic Colloids<\/strong><\/p>\n\n\n\n

Our group has recently developed a scalable, shear-driven\nprecipitation technique to fabricate polymeric particles with controlled\nmorphologies to the nanoscale. One particle morphology resulting from this\ntechnique is the Soft Dendritic Colloid (SDC), which is characterized by a\nbranched corona of nanofibers spread out in all directions about the particle.\nThis technique enables the production of nanofibrous materials from most\npolymer and biopolymer materials including hydrogels. We are also able to show control\nover the morphology of the resulting particulates from highly fibrous SDCs to\nextremely thin, nano-sheet particles. The combination of choice in regard to\nthe polymer material and choice in regard to the morphologies of the produced\nparticulates presents the shear-driven precipitation technique as a powerful\ntool to fabricate designer colloidal materials.<\/p>\n\n\n\n

SDCs are the most interesting of the materials resulting from the\ntechnique, with their unique structure enabling remarkable colloidal\nstructure-building and network-forming capabilities including strong physical\nadhesion through a mechanism similar to the \u201cgecko leg\u201d effect. This adhesive\neffect allows the facile formation of SDC surface and textile coatings as well\nas highly porous nonwoven SDC sheets. In suspension, the \u201cstickiness\u201d of SDCs gives\nrise to an inter-particle, colloidal fiber network throughout the fluid, inducing\ngelation at very low volume fractions. Along with broadening our understanding of\nthe thermodynamic and physical parameters that govern particle formation, our\ngroup continues to find applications for these particles including\nsuperhydrophobic and anti-icing coatings, novel biopolymer hydrogel fillers for\n3D printing applications. Other applications of interest include making porous aerogels\nand nonwovens for cell scaffolding applications.<\/p>\n\n\n\n

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Publications:<\/strong><\/p>\n\n\n\n

Roh, S.; Williams, A. H.; Bang, R. S.; Stoyanov, S. D.; Velev, O.D. Soft Dendritic Microparticles with Unusual Adhesion and Structure Properties. Nat. Mater. <\/em>2019<\/strong>, 1-6. DOI: 10.1038\/s41563-019-0508-z<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

ahwilli5@ncsu.edu M.S., Chemical Engineering, 2018North Carolina State University B.S., Chemistry, 2016Birmingham-Southern College   Research Focus #1: Soft Dendritic Colloids Our group has recently developed a scalable,…<\/p>\n","protected":false},"author":145,"featured_media":0,"parent":36,"menu_order":17,"comment_status":"closed","ping_status":"closed","template":"page-left.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-871","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/871","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\/145"}],"replies":[{"embeddable":true,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/comments?post=871"}],"version-history":[{"count":10,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/871\/revisions"}],"predecessor-version":[{"id":1894,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/871\/revisions\/1894"}],"up":[{"embeddable":true,"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/pages\/36"}],"wp:attachment":[{"href":"https:\/\/cbe.ncsu.edu\/velevgroup\/wp-json\/wp\/v2\/media?parent=871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}