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Search Results - daeyeon lee

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Enhancing polymer stability via extreme nanoconfinement
Technology Overview: Polymers are an important class of materials with applications in almost all aspects of life. Based on the chemicals used, a polymeric material can have a wide range of properties as well as costs. High thermal or chemical stability is highly desired in: Coatings Organic electronics Flame-retardant materials Chemical safety...
Published: 4/28/2020   |   Inventor(s): Zahra Fakhraai, Daeyeon Lee, Haonan Wang, Jyo Lyn Hor
Keywords(s):  
Category(s): Materials
Fabricating specialized oleosins: From surfactants to drug delivery to imaging
Technology Overview: The Hammer and Lee Labs have developed a method to produce oleosins and functionalized oleosins for a wide variety of applications from surfactants to a drug delivery vehicle to cancer cells. E. Coli can be can be transformed to fabricate oleosin or oleosin with additional molecules, including antibodies and GFP. Problem:...
Published: 3/18/2020   |   Inventor(s): Daniel Hammer, Daeyeon Lee
Keywords(s): Nanotechnology
Category(s): Materials, Imaging
Adhesive Hydrogels for Wet Applications (Non-Catechol Based)
Biocompatible hydrogels exhibit robust adhesion in wet conditions to substrates with wide range of chemistries and moduli. Technology Overview: Recent interest in developing wet adhesion for biomedical and environmental applications have leveraged catechol-functionalized materials to achieve these results. However, catechol moieties can produce...
Published: 2/6/2020   |   Inventor(s): Laura Bradley, Daeyeon Lee, Kathleen Stebe
Keywords(s):  
Category(s): Materials, Chemical Processes and Synthesis
Click-active Janus particles
Scalable synthesis and functionalization of clickable Janus particles via seeded emulsion polymerization Problem: Amphiphilic Janus particles are biphasic colloids, where each face has distinct chemical properties. Janus particles are useful for stabilizing multiphasic fluid mixtures, such as emulsions. Current methods make Janus particles rely...
Published: 2/5/2020   |   Inventor(s): Kathleen Stebe, Daeyeon Lee
Keywords(s):  
Category(s): Chemical Processes and Synthesis, Materials
High-throughput, highly parallelized, uniform droplet generation
Integrated microfluidic fabrication to expand production to the industrial scale Problem: Droplet-based microfluidics are being adopted in industry for materials synthesis and point-of-care diagnostic assays, but are limited by low-throughput and low flow rates, preventing the transition to the scale needed for industrial production. Previous work...
Published: 1/31/2020   |   Inventor(s): David Issadore, Daeyeon Lee
Keywords(s):  
Category(s): Chemical Processes and Synthesis, Hardware & Circuits & Sensors, Research Tools & Reagents
Novel soft material synthesis with liquid phase architecture and interfacially active particles
Solvent transfer-induced phase separation to tailor bijel fiber properties Problem: Bicontinuous interfacially jammed emulsions (bijels) are novel soft materials that consist of two interwoven pore networks, each containing a liquid that is immiscible with the other. The interface is stabilized by nanoparticles, providing high interfacial surface...
Published: 1/31/2020   |   Inventor(s): Kathleen Stebe, Daeyeon Lee
Keywords(s):  
Category(s): Chemical Processes and Synthesis, Materials
A drug delivery system tuned to the endogenous mechanical environment
Technology Overview: Tissues within the body experience mechanical perturbations across multiple force magnitudes and length scales, from mechanotransduction at the cell level to the dynamics of load-bearing joints. These forces not only maintain tissue homeostasis, but can also initiate degenerative processes when applied at supra-physiologic levels....
Published: 1/28/2020   |   Inventor(s): Robert Mauck, George Dodge, Daeyeon Lee
Keywords(s): Drug Delivery
Category(s): Therapeutics & Vaccines
Polymer nanocomposite films with extremely high nanoparticle loading
of polymers to yield nanostructured films. PNCFs with extremely high nanoparticle concentrations are important components in energy storage and conversion devices, as well as in protective coatings. However, these PNCFs are difficult to prepare because of the poor processability of polymer-nanoparticle mixtures with high concentrations of nanoparticles;...
Published: 1/23/2020   |   Inventor(s): Daeyeon Lee
Keywords(s):  
Category(s): Energy & Infrastructure & Environment, Materials
pH-responsive, shape changing amphiphilic Janus particles
Stimuli-responsive colloid surfactants for thermodynamically stable emulsions and phase inversion emulsification Problem: Janus particles are biphasic colloids that have distinct chemistries and contrasting properties on each side. Because of their amphiphilicity, Janus particles have the unique ability to stabilize multiphasic fluid mixtures,...
Published: 1/23/2020   |   Inventor(s): Daeyeon Lee
Keywords(s):  
Category(s): Energy & Infrastructure & Environment, Materials
Scalable, shape-tunable synthesis of non-spherical particles
Non-spherical, highly uniform polystyrene particles as colloidal building blocks Technology Overview: The Lee Lab has expanded on previous research on Janus particles to develop a method for synthesizing non-spherical particles with uniform shape using seeded emulsion polymerization. Linear polystyrene particles are used as a seed for emulsion...
Published: 2/8/2017   |   Inventor(s): Daeyeon Lee
Keywords(s):  
Category(s): Materials, Research Tools & Reagents, Chemical Processes and Synthesis
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