{"id":42,"date":"2016-12-12T12:01:39","date_gmt":"2016-12-12T17:01:39","guid":{"rendered":"https:\/\/cbe.ncsu.edu\/velevgroup\/?page_id=42"},"modified":"2021-05-19T01:04:26","modified_gmt":"2021-05-19T05:04:26","slug":"particle-and-fiber-formation","status":"publish","type":"page","link":"https:\/\/cbe.ncsu.edu\/velevgroup\/research\/particle-and-fiber-formation\/","title":{"rendered":"Particle & Fiber Formation"},"content":{"rendered":"\n

Research Description<\/span><\/h2>\n\n\n\n

Dr. Velev was the first to report the use of colloidal crystals as templates for the preparation of “inverse opals,” which are now one of the most widely studied classes of photonic materials. The original report was on “inverse opal” silica. Velev and collaborators later synthesized a unique new type of material, hierarchically porous structured gold, via assembly of metallic nanoparticles. In more recent years Dr. Velev and collaborators developed a number of scalable, rapid and cost-effective processes for the synthesis of functional nanomaterials by biphasic precipitation under shear. Their \u201cshear nanospinning\u201d liquid-based technique for scalable fabrication may revolutionize the scale and scope of nanofiber application. Velev at al.<\/em> also introduced a new class of environmentally-benign microbicidal nanoparticles with biodegradable cores made of lignin. <\/p>\n\n\n\n

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

Versatile Nanofabrication by Shear-Driven, Non-Solvent Induced Phase Separation<\/strong> Rachel Bang<\/a><\/p>\n\n\n\n

Soft Dendritic Colloids<\/strong> Austin Williams<\/a><\/p>\n\n\n\n

Environmentally Benign Nanoparticles<\/strong> Cathryn Conner<\/a><\/p>\n\n\n\n

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

Encapsulation and Delivery of Pharmaceuticals and Nutraceuticals<\/strong> Stoyan Smoukov<\/a> & Tian Tian<\/a><\/p>\n\n\n\n

Nanospinning – A Novel, Scalable Method for the Production of Nanofibers<\/strong> Stoyan Smoukov<\/a><\/p>\n\n\n\n

Assembly of Particles from Microspheres and Nanoparticles in Drying Droplets on Superhydrophobic Substrates<\/strong> Vinayak Rastogi<\/a><\/p>\n\n\n\n

Synthesis and Self-assembly of Particles with Anisotropic Shape, and\/or Dipolar Charge<\/strong> Rossitza Alargova<\/a><\/p>\n\n\n\n

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

Richter, A.P.; Brown, J.; Bharti, B.; Wang, A.; Gangwal, S.; Houck, K.; Hubal, E.A.; Paunov, V.N.; Stoyanov, S.D.; Velev, O.D. An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core. Nature Nanotech.<\/em> 2015<\/strong><\/a> <\/p>\n\n\n\n

Smoukov, S.; Tian, T.; Vitchuli, N.; Gangwal, S.; Geisen, P.; Wright, M.; Shim, E.; Marquez, M.; Fowler, J.; Velev, O.D. Scalable Liquid Shear-Driven Fabrication of Polymer Nanofibers. Advanced Materials<\/em> 2015<\/strong>, 27<\/em>, 16, 2642-2647.<\/a> <\/p>\n\n\n\n

Velikov, K.P.; Velev, O. D. Synthesis and Novel Applications of Biopolymer and Biologically Derived Particles. Curr. Opinion Colloid Interface Sci.<\/em> 2014<\/strong>, 19<\/em>, 381-382.<\/a> <\/p>\n\n\n\n

Velev, O. D.; Gupta, S. Materials fabricated by micro- and nanoparticle assembly \u2013 The challenging path from science to engineering. Advanced Materials<\/em>2009<\/strong>, 21<\/em>, 1897\u20131905.<\/a> <\/p>\n\n\n\n

Koo, H. Y.; Chang, S. T. Choi, W. S.; Park, J. H.; Kim, D. Y., Velev, O. D. Emulsion-based synthesis of reversibly swellable, magnetic nanoparticle-embedded polymer microcapsules. Chemistry of Materials<\/em> 2006<\/strong>, 18<\/em>, 3308\u20133313.<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

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