Search Results - "Spencer, N. D"

Microslips to “Avalanches” in Confined, Molecular Layers of Ionic Liquids by Espinosa-Marzal, R. M, Arcifa, A, Rossi, A, Spencer, N. D

“…We have measured forces between mica surfaces across two hydrophobic ionic liquids with a surface forces apparatus. Both surface-adsorbed water and alkyl-chain…”
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Ionic Liquids Confined in Hydrophilic Nanocontacts: Structure and Lubricity in the Presence of Water by Espinosa-Marzal, R. M, Arcifa, A, Rossi, A, Spencer, N. D

“…We have investigated the influence of ambient humidity on the nanoconfined structure and response to shear of ionic liquids. Three ionic liquids (ILs) were…”
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Understanding Complex Tribofilms by Means of H3BO3–B2O3 Model Glasses by Spadaro, F, Rossi, A, Ramakrishna, Shivaprakash N, Lainé, E, Woodward, P, Spencer, N. D

“…The discovery of the spontaneous reaction of boric oxides with moisture in the air to form lubricious H3BO3 films has led to great interest in the tribology of…”
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Alkyl Phosphate Monolayers, Self-Assembled from Aqueous Solution onto Metal Oxide Surfaces by Hofer, R, Textor, M, Spencer, N. D

“…Metal oxide surfaces have been coated by self-assembled monolayers (SAMs) of dodecyl phosphate (DDPO4) and 12-hydroxy dodecyl phosphate (OH-DDPO4), by means of…”
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The Effect of Surface Ions on Water Adsorption to Mica by Balmer, T. E, Christenson, H. K, Spencer, N. D, Heuberger, M

“…We have measured the adsorption isotherms of water on a single surface of freshly cleaved mica with K+ on the surface, and on mica where the K+ has been…”
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Density Fluctuations under Confinement: When Is a Fluid Not a Fluid? by Heuberger, M., Zäch, M., Spencer, N. D.

“…Knowing the behavior of a fluid in small volumes is essential for the understanding of a vast array of common problems in science, such as biological…”
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Probing Resistance to Protein Adsorption of Oligo(ethylene glycol)-Terminated Self-Assembled Monolayers by Scanning Force Microscopy by Feldman, K, Hähner, G, Spencer, N. D, Harder, P, Grunze, M

“…Functionalized scanning force microscope (SFM) probes were used to investigate and to mimic the interaction between fibrinogen and self-assembled monolayers…”
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Interaction Forces and Morphology of a Protein-Resistant Poly(ethylene glycol) Layer by Heuberger, M., Drobek, T., Spencer, N.D.

“…The molecular interactions on a protein-resistant surface coated with low-molecular-weight poly(ethylene glycol) (PEG) copolymer brushes are investigated using…”
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Skin-textile friction and skin elasticity in young and aged persons by Gerhardt, L-C, Lenz, A, Spencer, N D, Münzer, T, Derler, S

“…The mechanical properties of human skin are known to change with ageing, rendering skin less resistant to friction and shear forces, as well as more vulnerable…”
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Optical grating coupler biosensors by Vörös, J, Ramsden, J.J, Csúcs, G, Szendrő, I, De Paul, S.M, Textor, M, Spencer, N.D

“…By incorporating a grating in a planar optical waveguide one creates a device with which the spectrum of guided lightmodes can be measured. When the surface of…”
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Capabilities of Femtosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Depth Profiling of Thin Metal Coatings by Pisonero, J, Koch, J, Wälle, M, Hartung, W, Spencer, N. D, Günther, D

“…The capabilities of ultraviolet femtosecond laser ablation inductively coupled plasma mass spectrometry (UV-fs-LA-ICPMS) for depth profile analysis of thin…”
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Self-Assembled Monolayers of Dodecyl and Hydroxy-dodecyl Phosphates on Both Smooth and Rough Titanium and Titanium Oxide Surfaces by Tosatti, S, Michel, R, Textor, M, Spencer, N. D

“…Dodecyl phosphate and hydroxy-terminated dodecyl phosphate are shown to spontaneously assemble on smooth titanium oxide and titanium metal coated glass and…”
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Protein-mediated boundary lubrication in arthroplasty by Heuberger, M.P., Widmer, M.R., Zobeley, E., Glockshuber, R., Spencer, N.D.

“…Wear of articulated surfaces can be a major lifetime-limiting factor in arthroplasty. In the natural joint, lubrication is effected by the body's natural…”
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Fabrication, Characterisation and Tribological Investigation of Artificial Skin Surface Lipid Films by Gerhardt, L.-C, Schiller, A, Müller, B, Spencer, N. D, Derler, S

“…This article deals with the tribology of lipid coatings that resemble those found on human skin. In order to simulate the lipidic surface chemistry of human…”
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Study of skin-fabric interactions of relevance to decubitus: friction and contact-pressure measurements by Gerhardt, L-C, Mattle, N, Schrade, G U, Spencer, N D, Derler, S

“…Prolonged pressure as well as friction and shear forces at the skin-textile interface are decisive physical parameters in the development of decubitus. The…”
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Sliding friction of polyethylene on snow and ice: Contact area and modeling by Bäurle, L., Kaempfer, Th.U., Szabó, D., Spencer, N.D.

“…A numerical model for sliding on ice including dry friction and generation of and lubrication by water films is described. The model is verified by comparison…”
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Surface modification of PLGA microspheres by Müller, M., Vörös, J., Csúcs, G., Walter, E., Danuser, G., Merkle, H. P., Spencer, N. D., Textor, M.

“…Microspheres made of poly(lactic‐co‐glycolic acid) (PLGA) are biocompatible and biodegradable, rendering them a promising tool in the context of drug delivery…”
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Surface characterization of implant materials c.p. Ti, Ti-6Al-7Nb and Ti-6Al-4V with different pretreatments by Sittig, C, Textor, M, Spencer, N D, Wieland, M, Vallotton, P H

“…The biocompatibility of commercially pure titanium and its alloys is closely related to their surface properties, with both the composition of the protecting…”
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Comparative investigation of the surface properties of commercial titanium dental implants. Part I: chemical composition by Massaro, C, Rotolo, P, De Riccardis, F, Milella, E, Napoli, A, Wieland, M, Textor, M, Spencer, N D, Brunette, D M

“…The surfaces of five commercially available titanium implants (Brånemark Nobel Biocare, 3i ICE, 3i OSSEOTITE, ITI-TPS, and ITI-SLA) were compared by scanning…”
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Immobilization of the cell-adhesive peptide Arg-Gly-Asp-Cys (RGDC) on titanium surfaces by covalent chemical attachment by Xiao, S J, Textor, M, Spencer, N D, Wieland, M, Keller, B, Sigrist, H

“…Surface modification of acid-pretreated titanium with 3-aminopropyltriethoxylsilane (APTES) in dry toluene resulted in covalently bonded siloxane films with…”
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