Search Results - "McGuiggan, Patricia"

The Fate of Simple Organics on Titan's Surface: A Theoretical Perspective by Yu, Xinting, Yu, Yue, Garver, Julia, Zhang, Xi, McGuiggan, Patricia

“…Atmospheric photochemistry on Titan continuously transforms methane and nitrogen gases into various organic compounds. This study explores the fate of these…”
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Human astrocytes develop physiological morphology and remain quiescent in a novel 3D matrix by Placone, Amanda L, McGuiggan, Patricia M, Bergles, Dwight E, Guerrero-Cazares, Hugo, Quiñones-Hinojosa, Alfredo, Searson, Peter C

“…Abstract Astrocytes are the most abundant glial cells in the brain and are responsible for diverse functions, from modulating synapse function to regulating…”
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Effect of Roughness and Elasticity on Interactions between Charged Colloidal Spheres by Monti, Joseph M, McGuiggan, Patricia M, Robbins, Mark O

“…The effects of realistic roughness and elasticity on the interactions between charged silica spheres are studied as a function of surface potential, screening…”
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Surface Energy of the Titan Aerosol Analog "Tholin" by Yu, Xinting, Hörst, Sarah M., He, Chao, McGuiggan, Patricia, Kristiansen, Kai, Zhang, Xi

“…The photochemical haze produced in the upper atmosphere of Titan plays a key role in various atmospheric and surface processes on Titan. The surface energy,…”
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Adhesion and friction in gecko toe attachment and detachment by Tian, Yu, Pesika, Noshir, Zeng, Hongbo, Rosenberg, Kenny, Zhao, Boxin, McGuiggan, Patricia, Autumn, Kellar, Israelachvili, Jacob

“…Geckos can run rapidly on walls and ceilings, requiring high friction forces (on walls) and adhesion forces (on ceilings), with typical step intervals of…”
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Template-Stripped Ultra-Smooth Aluminum Films (0.2 nm RMS) for the Surface Forces Apparatus by van Engers, Christian D, Lamberty, Zachary D, McGuiggan, Patricia M, Frechette, Joelle

“…We present a method for the fabrication of ultra-smooth (0.2 nm RMS), aluminum substrates through template stripping (TS). The method relies on the use of mica…”
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Stick Slip Contact Mechanics between Dissimilar Materials:  Effect of Charging and Large Friction by McGuiggan, Patricia M

“…Measurements of the contact radius as a function of applied force between a mica surface and a silica surface (mica/silica) in air are reported. The…”
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Haze evolution in temperate exoplanet atmospheres through surface energy measurements by Yu, Xinting, He, Chao, Zhang, Xi, Hörst, Sarah M., Dymont, Austin H., McGuiggan, Patricia, Moses, Julianne I., Lewis, Nikole K., Fortney, Jonathan J., Gao, Peter, Kempton, Eliza M.-R., Moran, Sarah E., Morley, Caroline V., Powell, Diana, Valenti, Jeff A., Vuitton, Véronique

“…Photochemical hazes are important opacity sources in temperate exoplanet atmospheres, hindering current observations from characterizing exoplanet atmospheric…”
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Adhesion and Friction Force Coupling of Gecko Setal Arrays:  Implications for Structured Adhesive Surfaces by Zhao, Boxin, Pesika, Noshir, Rosenberg, Kenny, Tian, Yu, Zeng, Hongbo, McGuiggan, Patricia, Autumn, Kellar, Israelachvili, Jacob

“…The extraordinary climbing ability of geckos is partially attributed to the fine structure of their toe pads, which contain arrays consisting of thousands of…”
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Looking at education through the microscope by Eswarappa Prameela, Suhas, McGuiggan, Patricia M., Brusini, Amy, Glenn, Trevor W., Weihs, Timothy P.

“…Advanced research microscopes in universities can be used to enhance the education of STEM students, as demonstrated by initiatives at Johns Hopkins University…”
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Magnetostrictive particulates of Tb0.3Dy0.7Fe2 integrated into carbon fiber reinforced polymer for structural damage monitoring by Seifu, Dereje, Hall, Asha J., Elbert, David, McGuiggan, Patricia, Myers, Oliver J., Budhani, Ramesh C.

“…Smart materials usually are either mounted on surfaces or embedded inside; in this work, we study magnetic properties of smart materials that are integrated…”
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Direct Measurement of Interparticle Forces of Titan Aerosol Analogs (“Tholin”) Using Atomic Force Microscopy by Yu, Xinting, Hörst, Sarah M., He, Chao, McGuiggan, Patricia, Bridges, Nathan T.

“…To understand the origin of the dunes on Titan, it is important to investigate the material properties of Titan's organic sand particles on Titan. The organic…”
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Where Does Titan Sand Come From: Insight From Mechanical Properties of Titan Sand Candidates by Yu, Xinting, Hörst, Sarah M., He, Chao, McGuiggan, Patricia, Crawford, Bryan

“…Extensive equatorial linear dunes exist on Titan, but the origin of the sand, which appears to be organic, is unknown. We used nanoindentation to study the…”
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Dynamics of a Disturbed Sessile Drop Measured by Atomic Force Microscopy (AFM) by McGuiggan, Patricia M, Grave, Daniel A, Wallace, Jay S, Cheng, Shengfeng, Prosperetti, Andrea, Robbins, Mark O

“…A new method for studying the dynamics of a sessile drop by atomic force microscopy (AFM) is demonstrated. A hydrophobic microsphere (radius, r ∼ 20–30 μm) is…”
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Maximum Force Technique for the Measurement of the Surface Tension of a Small Droplet by AFM by McGuiggan, Patricia M., Wallace, Jay S.

“…An atomic force microscope (AFM) is used to measure the meniscus force on a vertical quartz rod as the rod is pulled through an air/liquid interface. A fluid…”
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Comparison of friction measurements using the atomic force microscope and the surface forces apparatus: the issue of scale by McGuiggan, Patricia M, Zhang, Jun, Hsu, Stephen M

“…Results are presented of lateral force measurements using the atomic force microscope (AFM) and the surface forces apparatus (SFA). Two different probes are…”
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Forces between Surfaces in Liquids by Israelachvili, Jacob N., McGuiggan, Patricia M.

“…Recent developments in the direct measurements of forces between surfaces in liquids at the ångstrom resolution level are reviewed. The results reveal a rich…”
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Identification of a Second Dynamic State During Stick-Slip Motion by Yoshizawa, Hisae, McGuiggan, Patricia, Israelachvili, Jacob

“…Stick-slip, or interrupted, motion rather than smooth uninterrupted motion occurs in many different phenomena such as friction, fluid flow, material fracture…”
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Dynamic Properties of Molecularly Thin Liquid Films by Israelachvili, Jacob N., McGuiggan, Patricia M., Homola, Andrew M.

“…An experimental technique is described for simultaneously measuring the static and dynamic interactions of very thin liquid films between two surfaces as they…”
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Molecular Mechanisms and Forces Involved in the Adhesion and Fusion of Amphiphilic Bilayers by Helm, Christiane A., Israelachvili, Jacob N., McGuiggan, Patricia M.

“…The surface forces apparatus technique was used for measuring the adhesion, deformation, and fusion of bilayers supported on mica surfaces in aqueous…”
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