Browsing by Author "Kim, Philseok"
Now showing items 1-19 of 19
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Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna
England, Grant Tyler; Kolle, Mathias; Kim, Philseok; Khan, Mughees; Munoz, Philip Alejandro; Mazur, Eric; Aizenberg, Joanna (Proceedings of the National Academy of Sciences, 2014)Recently, diffraction elements that reverse the color sequence normally observed in planar diffraction gratings have been found in the wing scales of the butterfly Pierella luna. Here, we describe the creation of an ... -
A bioinspired omniphobic surface coating on medical devices prevents thrombosis and biofouling
Leslie, Daniel; Waterhouse, Anna; Berthet, Julia B; Valentin, Thomas M; Watters, Alexander; Jain, Abhishek; Kim, Philseok; Hatton, Benjamin D; Nedder, Arthur; Donovan, Kathryn; Super, Elana H; Howell, Caitlin; Johnson, Christopher P; Vu, Thy L; Bolgen, Dana; Rifai, Sami; Hansen, Anne Rosenfeld; Aizenberg, Michael; Super, Michael; Aizenberg, Joanna; Ingber, Donald Elliot (Nature Publishing Group, 2014)Thrombosis and biofouling of extracorporeal circuits and indwelling medical devices cause significant morbidity and mortality worldwide. We describe a bioinspired coating that repels blood from virtually any material by ... -
Biomimetic, Hierarchical, Multidimensional Patterning of Conductive Polymers on High-Aspect-Ratio Microstructures
Kim, Philseok; Zarzar, Lauren Dell; Epstein, Alexander K.; Aizenberg, Joanna (PMSA Division of ACS, 2010) -
Condensation on slippery asymmetric bumps
Park, Kyoo-Chul; Kim, Philseok; Grinthal, Alison Elizabeth; He, Neil; Fox, David; Weaver, James C.; Aizenberg, Joanna (Springer Nature, 2016)Controlling dropwise condensation is fundamental to water- harvesting systems1–3, desalination4, thermal power generation4–8, air conditioning9, distillation towers10, and numerous other applications4,5,11. For any of ... -
Control of bacterial biofilm growth on surfaces by nanostructural mechanics and geometry
Epstein, A K; Hochbaum, A I; Kim, Philseok; Aizenberg, Joanna (IOP Publishing, 2011)Surface-associated communities of bacteria, called biofilms, pervade natural and anthropogenic environments. Mature biofilms are resistant to a wide range of antimicrobial treatments and therefore pose persistent pathogenic ... -
Design of anti-icing surfaces: smooth, textured or slippery?
Kreder, Michael Joseph; Alvarenga, Jack; Kim, Philseok; Aizenberg, Joanna (Springer Nature, 2016)Passive anti-icing surfaces, or icephobic surfaces, are an area of great interest because of their significant economic, energy and safety implications in the prevention and easy removal of ice in many facets of society. ... -
Dynamic daylight control system implementing thin cast arrays of polydimethylsiloxane-based millimeter-scale transparent louvers
Park, Daekwon; Kim, Philseok; Alvarenga, Jack; Jin, Keojin; Aizenberg, Joanna; Bechthold, Martin (Elsevier BV, 2014)The deep building layouts typical in the U.S. have led to a nearly complete reliance on artificial lighting in standard office buildings. The development of daylight control systems that maximize the penetration and optimize ... -
Extremely durable biofouling-resistant metallic surfaces based on electrodeposited nanoporous tungstite films on steel
Tesler, Alexander B.; Kim, Philseok; Kolle, Stefan; Howell, Caitlin; Ahanotu, Onye; Aizenberg, Joanna (Nature Pub. Group, 2015)Formation of unwanted deposits on steels during their interaction with liquids is an inherent problem that often leads to corrosion, biofouling and results in reduction in durability and function. Here we report a new route ... -
Fabrication and Replication of Arrays of Single- or Multicomponent Nanostructures by Replica Molding and Mechanical Sectioning
Lipomi, Darren J.; Kats, Mikhail A; Kim, Philseok; Kang, Sung Hoon; Aizenberg, Joanna; Capasso, Federico; Whitesides, George McClelland (American Chemical Society (ACS), 2010)This paper describes the fabrication of arrays of nanostructures (rings, crescents, counterfacing split rings, cylinders, coaxial cylinders, and other structures) by a four-step process: (i) molding an array of epoxy posts ... -
Fabrics coated with lubricated nanostructures display robust omniphobicity
Shillingford, Cicely; MacCallum, Noah; Wong, Tak-Sing; Kim, Philseok; Aizenberg, Joanna (IOP Publishing, 2013)The development of a stain-resistant and pressure-stable textile is desirable for consumer and industrial applications alike, yet it remains a challenge that current technologies have been unable to fully address. Traditional ... -
Fluorogel Elastomers with Tunable Transparency, Elasticity, Shape-Memory, and Antifouling Properties
Yao, Xi; Dunn, Stuart; Kim, Philseok; Duffy, Meredith Anne; Alvarenga, Jack; Aizenberg, Joanna (Wiley-Blackwell, 2014)Omniphobic fluorogel elastomers were prepared by photocuring perfluorinated acrylates and a perfluoropolyether crosslinker. By tuning either the chemical composition or the temperature that control the crystallinity of the ... -
Inhibition of ice nucleation by slippery liquid-infused porous surfaces (SLIPS)
Wilson, Peter W.; Lu, Weizhe; Xu, Haojun; Kim, Philseok; Kreder, Michael Joseph; Alvarenga, Jack; Aizenberg, Joanna (Royal Society of Chemistry (RSC), 2013)Ice repellent coatings have been studied and keenly sought after for many years, where any advances in the durability of such coatings will result in huge energy savings across many fields. Progress in creating anti-ice ... -
Liquid-Infused Silicone As a Biofouling-Free Medical Material
MacCallum, Noah; Howell, Caitlin; Kim, Philseok; Sun, Derek; Friedlander, Ronn; Ranisau, Jonathan; Ahanotu, Onye; Lin, Jennifer J.; Vena, Alexander Michael; Hatton, Benjamin; Wong, Tak-Sing; Aizenberg, Joanna (American Chemical Society (ACS), 2014)There is a dire need for infection prevention strategies that do not require the use of antibiotics, which exacer- bate the rise of multi- and pan-drug resistant infectious organisms. An important target in this area is ... -
Patterned, Oscillating, pH-Responsive Actuation Of Polymeric Microstructures In Fluid
Zarzar, Lauren Dell; Kim, Philseok; Aizenberg, Joanna (Curran Associates, Inc., 2010) -
Photothermally triggered actuation of hybrid materials as a new platform for in vitro cell manipulation
Sutton, Amy Alexandra; Shirman, Tanya; Timonen, Jaakko; England, Grant Tyler; Kim, Philseok; Kolle, Mathias; Ferrante, Thomas Charles; Zarzar, Lauren; Strong, Elizabeth; Aizenberg, Joanna (Springer Nature, 2017)Mechanical forces in the cell’s natural environment have a crucial impact on growth, differentiation and behavior. Few areas of biology can be understood without taking into account how both individual cells and cell ... -
Pneumatically adaptive light modulation system (PALMS) for buildings
Hinz, K.; Alvarenga, Jack; Kim, Philseok; Park, D.; Aizenberg, Joanna; Bechthold, Martin (Elsevier BV, 2018)This research introduces a novel approach to control light transmittance based on flexible polydimethylsiloxane (PDMS) films that have been plasma-treated such that micro-scale surface features have a visual effect as the ... -
Stability of Surface-Immobilized Lubricant Interfaces under Flow
Howell, Caitlin; Vu, Thy L.; Johnson, Christopher; Hou, Xu; Ahanotu, Onyemaechi; Alvarenga, Jack; Leslie, Daniel; Uzun, Oktay; Waterhouse, Anna; Kim, Philseok; Super, Michael; Aizenberg, Michael; Ingber, Donald Elliot; Aizenberg, Joanna (American Chemical Society (ACS), 2015)The stability and longevity of surface-stabilized lubricant layers is a critical question in their application as low- and nonfouling slippery surface treatments in both industry and medicine. Here, we investigate lubricant ... -
Structural Transformation by Electrodeposition on Patterned Substrates (STEPS): A New Versatile Nanofabrication Method
Kim, Philseok; Epstein, Alexander K; Khan, Mughees; Zarzar, Lauren Dell; Lipomi, Darren J.; Whitesides, George M.; Aizenberg, Joanna (American Chemical Society (ACS), 2012)Arrays of high-aspect-ratio (HAR) nano- and microstructures are of great interest for designing surfaces for applications in optics, bio−nano interfaces, microelectromechanical systems, and microfluidics, but the difficulty ... -
Surface Oxidation under Ambient Air—Not Only a Fast and Economical Method to Identify Double Bond Positions in Unsaturated Lipids But Also a Reminder of Proper Lipid Processing
Zhou, Ying; Park, Hyejung; Kim, Philseok; Jiang, Yan; Costello, Catherine E. (American Chemical Society, 2014)A simple, fast approach elucidated carbon–carbon double bond positions in unsaturated lipids. Lipids were deposited onto various surfaces and the products from their oxidation in ambient air were observed by electrospray ...