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Journal articles on the topic 'Direct surface interactions'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Lai, Chiu-Chun, Kuo-Shien Huang, Po-Wei Su, Chang-Mou Wu, and Ching-Nan Huang. "Interactions of modified Gemini surfactants: Interactions with direct dyes and dyeing properties in cotton fabrics." Modern Physics Letters B 33, no. 14n15 (2019): 1940002. http://dx.doi.org/10.1142/s0217984919400025.

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This study investigated dye–surfactant interactions between a series of modified Gemini surfactants and commercial direct dyes in aqueous solution and their corresponding effects on cotton fabric dyeing. A surface tension meter was also used to measure surface activities of compounds containing electrolyte under conditions similar to those in dyeing processes. The surface tension measurements showed lower than normal surface tension in surfactant solutions containing electrolyte. From the UV-Vis spectra, the isosbestic point indicated that dye–surfactant complexes had formed and existed as hyd

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2

Peyre, P., M. Gharbi, C. Gorny, et al. "Surface Finish Issues after Direct Metal Deposition." Materials Science Forum 706-709 (January 2012): 228–33. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.228.

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Derived from laser cladding, the Direct Metal Deposition (DMD) laser process, is based upon a laser beam – projected powder interaction, and allows manufacturing complex 3D shapes much faster than conventional processes. However, the surface finish remains critical, and DMD parts usually necessitate post-machining steps. In this context, the focus of our work was: (1) to understand the physical mechanisms responsible for deleterious surface finishes, (2) to propose different experimental solutions for improving surface finish. Our experimental approach is based upon: (1) adequate modifications

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Zhu, Chongqin, Yurui Gao, Weiduo Zhu, et al. "Direct observation of 2-dimensional ices on different surfaces near room temperature without confinement." Proceedings of the National Academy of Sciences 116, no. 34 (2019): 16723–28. http://dx.doi.org/10.1073/pnas.1905917116.

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Water–solid interfaces play important roles in a wide range of fields, including atmospheric science, geochemistry, electrochemistry, and food science. Herein, we report simulation evidence of 2-dimensional (2D) ice formation on various surfaces and the dependence of the 2D crystalline structure on the hydrophobicity and morphology of the underlying surface. Contrary to the prevailing view that nanoscale confinement is necessary for the 2D liquid-to-bilayer ice transition, we find that the liquid-to-bilayer hexagonal ice (BHI) transition can occur either on a model smooth surface or on model f

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Linne, Christine, Daniele Visco, Stefano Angioletti-Uberti, Liedewij Laan, and Daniela J. Kraft. "Direct visualization of superselective colloid-surface binding mediated by multivalent interactions." Proceedings of the National Academy of Sciences 118, no. 36 (2021): e2106036118. http://dx.doi.org/10.1073/pnas.2106036118.

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Reliably distinguishing between cells based on minute differences in receptor density is crucial for cell–cell or virus–cell recognition, the initiation of signal transduction, and selective targeting in directed drug delivery. Such sharp differentiation between different surfaces based on their receptor density can only be achieved by multivalent interactions. Several theoretical and experimental works have contributed to our understanding of this “superselectivity.” However, a versatile, controlled experimental model system that allows quantitative measurements on the ligand–receptor level i

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Norris, Anne, Mario A. Bianchet, and Jef D. Boeke. "Compensatory Interactions between Sir3p and the Nucleosomal LRS Surface Imply Their Direct Interaction." PLoS Genetics 4, no. 12 (2008): e1000301. http://dx.doi.org/10.1371/journal.pgen.1000301.

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Touhami, Ahmed, Barbara Hoffmann, Andrea Vasella, Frédéric A. Denis, and Yves F. Dufrêne. "Aggregation of yeast cells: direct measurement of discrete lectin–carbohydrate interactions." Microbiology 149, no. 10 (2003): 2873–78. http://dx.doi.org/10.1099/mic.0.26431-0.

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Aggregation of microbial cells mediated by specific interactions plays a pivotal role in the natural environment, in medicine and in biotechnological processes. Here we used atomic force microscopy (AFM) to measure individual lectin–carbohydrate interactions involved in the flocculation of yeast cells, an aggregation event of crucial importance in fermentation technology. AFM probes functionalized with oligoglucose carbohydrates were used to record force-distance curves on living yeast cells at a rate of 0·5 μm s−1. Flocculating cells showed adhesion forces of 121±53 pN, reflecting the specifi

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Singla, Saranshu, Dharamdeep Jain, Chelsea M. Zoltowski, et al. "Direct evidence of acid-base interactions in gecko adhesion." Science Advances 7, no. 21 (2021): eabd9410. http://dx.doi.org/10.1126/sciadv.abd9410.

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While it is generally accepted that van der Waals (vdW) forces govern gecko adhesion, several studies indicate contributions from non-vdW forces and highlight the importance of understanding the adhesive contact interface. Previous work hypothesized that the surface of gecko setae is hydrophobic, with nonpolar lipid tails exposed on the surface. However, direct experimental evidence supporting this hypothesis and its implications on the adhesion mechanism is lacking. Here, we investigate the sapphire-setae contact interface using interface-sensitive spectroscopy and provide direct evidence of

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Yang, Hui, Wei Zhang, Ting Chen, et al. "Direct Experimental Evidence of Biomimetic Surfaces with Chemical Modifications Interfering with Adhesive Protein Adsorption." Molecules 24, no. 1 (2018): 27. http://dx.doi.org/10.3390/molecules24010027.

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Current approaches to dealing with the worldwide problem of marine biofouling are to impart chemical functionality to the surface or utilize microtopography inspired by nature. Previous reports have shown that only introducing a single method may not resist adhesion of mussels or inhibit biofouling in static forms. While it is promising to integrate two methods to develop an effective antifouling strategy, related basic research is still lacking. Here, we have fabricated engineered shark skin surfaces with different feature heights and terminated with different chemical moieties. Atomic force

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Hendrix, Martin, E. Scott Priestley, Gerald F. Joyce, and Chi-Huey Wong. "Direct Observation of Aminoglycoside−RNA Interactions by Surface Plasmon Resonance." Journal of the American Chemical Society 119, no. 16 (1997): 3641–48. http://dx.doi.org/10.1021/ja964290o.

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10

Ivanov, A. S., and A. E. Medvedev. "Optical surface plasmon resonance biosensors in molecular fishing." Biomeditsinskaya Khimiya 61, no. 2 (2015): 231–38. http://dx.doi.org/10.18097/pbmc20156102231.

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An optical biosensor employing surface plasmon resonance is a highly efficient instrument applicable for direct real time registration of molecular interactions without additional use of any labels or coupled processes. As an independent approach it is especially effective in analysis of various ligand receptor interactions. SPR-biosensors are used for validation of studies on intermolecular interactions in complex biological systems (affinity profiling of various groups of proteins, etc.). Recently, potential application of the SPR-biosensor for molecular fishing (direct affinity binding of t

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11

Kanduč, Matej, and Roland R. Netz. "From hydration repulsion to dry adhesion between asymmetric hydrophilic and hydrophobic surfaces." Proceedings of the National Academy of Sciences 112, no. 40 (2015): 12338–43. http://dx.doi.org/10.1073/pnas.1504919112.

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Using all-atom molecular dynamics (MD) simulations at constant water chemical potential in combination with basic theoretical arguments, we study hydration-induced interactions between two overall charge-neutral yet polar planar surfaces with different wetting properties. Whether the water film between the two surfaces becomes unstable below a threshold separation and cavitation gives rise to long-range attraction, depends on the sum of the two individual surface contact angles. Consequently, cavitation-induced attraction also occurs for a mildly hydrophilic surface interacting with a very hyd

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12

Eppell, S. J., B. A. Todd, and F. R. Zypman. "Toward Measuring In-Vitro Single Molecule Force Fields Using a Scanning Force Microscope." Microscopy and Microanalysis 6, S2 (2000): 970–71. http://dx.doi.org/10.1017/s143192760003734x.

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The interaction of surfaces with their surroundings can be described as arising from force fields generated by molecules at the surface of interest. This statement is true for electrostatic interactions of proteins on cell membranes as well as steric interactions of macromolecules on polymer surfaces. To better understand these systems and ultimately to design superior materials, it is necessary to make direct measurements of these near-surface molecular scale force fields. Scanning force microscopy (SFM) holds some promise in the endeavor to make surface force measurements in a full three dim

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Götzinger, Martin, and Wolfgang Peukert. "Dispersive forces of particle–surface interactions: direct AFM measurements and modelling." Powder Technology 130, no. 1-3 (2003): 102–9. http://dx.doi.org/10.1016/s0032-5910(02)00234-6.

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14

Prelesnik, Jesse L., Robert G. Alberstein, Shuai Zhang, et al. "Ion-dependent protein–surface interactions from intrinsic solvent response." Proceedings of the National Academy of Sciences 118, no. 26 (2021): e2025121118. http://dx.doi.org/10.1073/pnas.2025121118.

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The phyllosilicate mineral muscovite mica is widely used as a surface template for the patterning of macromolecules, yet a molecular understanding of its surface chemistry under varying solution conditions, required to predict and control the self-assembly of adsorbed species, is lacking. We utilize all-atom molecular dynamics simulations in conjunction with an electrostatic analysis based in local molecular field theory that affords a clean separation of long-range and short-range electrostatics. Using water polarization response as a measure of the electric fields that arise from patterned,

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15

Monroe, Jacob I., Sally Jiao, R. Justin Davis, Dennis Robinson Brown, Lynn E. Katz, and M. Scott Shell. "Affinity of small-molecule solutes to hydrophobic, hydrophilic, and chemically patterned interfaces in aqueous solution." Proceedings of the National Academy of Sciences 118, no. 1 (2020): e2020205118. http://dx.doi.org/10.1073/pnas.2020205118.

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Performance of membranes for water purification is highly influenced by the interactions of solvated species with membrane surfaces, including surface adsorption of solutes upon fouling. Current efforts toward fouling-resistant membranes often pursue surface hydrophilization, frequently motivated by macroscopic measures of hydrophilicity, because hydrophobicity is thought to increase solute–surface affinity. While this heuristic has driven diverse membrane functionalization strategies, here we build on advances in the theory of hydrophobicity to critically examine the relevance of macroscopic

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16

Eyvaz, Murat, Hatice Deniz, Tuğrul S. Aktaş, Ebubekir Yüksel, and Ahmet M. Saatçi. "Pre-Ozonation-Coagulant Interactions in Direct Filtration." Water Quality Research Journal 45, no. 3 (2010): 317–26. http://dx.doi.org/10.2166/wqrj.2010.034.

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Abstract Pre-ozonation–coagulant interactions effects in relation to the coagulant type and dosage in direct filtration of surface waters were investigated. The performance of the process was evaluated by monitoring the effluent quality and head loss development through the filter bed. Two identical pilot scale filter columns filtering the same raw water were operated in parallel. The raw water was brought from Ömerli Reservoir in Istanbul. Before filtering, the raw water flow was split into two equal flows. One of the streams was pre-ozonated and the other was aerated using contact chambers w

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Abdullah Sajid and M Salman Latif. "Direct Electromagnetic Wave Scattering Calculation Using Methods of Moments through Layered Rough Surface." JOURNAL OF NANOSCOPE (JN) 4, no. 2 (2023): 69–88. http://dx.doi.org/10.52700/jn.v4i2.97.

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This thesis focuses on the direct calculation of electromagnetic wave scattering through layered rough surfaces using the Method of Moments. The study aims to contribute to existing knowledge by addressing the problems associated with accurately predicting scattered electromagnetic fields from rough surfaces with layered structures. By using the Method of Moments, this research seeks to provide insights into the behavior of electromagnetic waves when interacting with multi-layered rough surfaces, offering valuable implications for practical engineering applications and the development of advan

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18

Ralston, John, Ian Larson, Mark W. Rutland, Adam A. Feiler, and Mieke Kleijn. "Atomic force microscopy and direct surface force measurements (IUPAC Technical Report)." Pure and Applied Chemistry 77, no. 12 (2005): 2149–70. http://dx.doi.org/10.1351/pac200577122149.

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The atomic force microscope (AFM) is designed to provide high-resolution (in the ideal case, atomic) topographical analysis, applicable to both conducting and nonconducting surfaces. The basic imaging principle is very simple: a sample attached to a piezoelectric positioner is rastered beneath a sharp tip attached to a sensitive cantilever spring. Undulations in the surface lead to deflection of the spring, which is monitored optically. Usually, a feedback loop is employed, which holds the spring deflection constant, and the corresponding movement of the piezoelectric positioner thus generates

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19

Lai, Chun Chih, John M. Bell, and Nunzio Motta. "Bovine Serum Albumin Adhesion Force Measurements Using an Atomic Force Microscopy." Advanced Materials Research 32 (February 2008): 49–52. http://dx.doi.org/10.4028/www.scientific.net/amr.32.49.

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A new, direct method has been developed to measure the adhesion forces of bovine serum albumin (BSA) on surfaces by using Atomic Force Microscopy (AFM) in liquid environment. We were able to measure interactions between proteins and substrate surface in PBS solution directly without any modification to the substrate or the AFM tip. Two different surfaces have been used in the experiments: mica (hydrophilic surface) and polystyrene (hydrophobic surface). The results show that a polystyrene surface is more adhesive to BSA than a mica surface. This is consistent with previous research, which asse

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VANDERBILT, DAVID. "ORDERING AT SURFACES FROM ELASTIC AND ELECTROSTATIC INTERACTIONS." Surface Review and Letters 04, no. 05 (1997): 811–16. http://dx.doi.org/10.1142/s0218625x9700081x.

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Elastic and electrostatic interactions can sometimes have a profound influence on surface morphology. Here, we review the conditions under which surface stress or surface dipole variations can give rise to spontaneous domain formation at surfaces, and focus especially on the case of the Si(100) surface. In principle, the anisotropy of the surface stress should cause the spontaneous formation of a striped domain structure on Si(100). In practice, the length scale for this domain structure turns out to be so large as to prevent its direct observation, although the influence of the elastic intera

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21

Liu, Fanghui, Hui Yang, Ting Chen, et al. "Direct Evidence of Salinity and pH Effects on the Interfacial Interactions of Asphaltene-Brine-Silica Systems." Molecules 25, no. 5 (2020): 1214. http://dx.doi.org/10.3390/molecules25051214.

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The hydraulic fracturing technique remains essential to unlock fossil fuel from shale oil reservoirs. However, water imbibed by shale during hydraulic fracturing triggers environmental and technical challenges due to the low flowback water recovery. While it appears that the imbibition of fracturing fluid is a complex function of physico-chemical processes in particular capillary force which is associated with wettability of oil-brine-shale, the controlling factor(s) to govern the wettability is incomplete and the literature data in this context is missing. We thus measured the adsorption/deso

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22

Verzicco, R., and P. Orlandi. "Wall/Vortex-Ring Interactions." Applied Mechanics Reviews 49, no. 10 (1996): 447–61. http://dx.doi.org/10.1115/1.3101985.

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This review article presents a state-of-the-art review of the ring and wall interactions in the case of normal and oblique collisions. The different approaches used to study this flow and the results obtained are described and discussed. These techniques span from flow visualizations to LDV measurements, direct numerical simulations, particle-in-cell vortex methods and viscous and inviscid interactions. The relevance of these basic flows to the comprehension of wall-turbulence is also described. Finally, further developments, such as interaction with a grooved surface and with a deformable wal

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Kanev, Kamen. "Tangible Interfaces for Interactive Multimedia Presentations." Mobile Information Systems 4, no. 3 (2008): 183–93. http://dx.doi.org/10.1155/2008/982947.

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This article is devoted to tangible interfaces for steering and control of interactive multimedia presentations. Various methods for digital encoding of physical objects are considered and their applicability in surface encoding for tangible interface components is discussed. Experiments with presentation controls, based on direct interaction with digitally encoded printed handouts are reported. An innovative approach for transferring presentation controls from printed handouts to surfaces of real physical objects is introduced. Consequently labels, digitally enhanced with CLUSPI codes are cre

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Dufrêne, Yves F., Christophe J. P. Boonaert, Patrick A. Gerin, Marcel Asther, and Paul G. Rouxhet. "Direct Probing of the Surface Ultrastructure and Molecular Interactions of Dormant and Germinating Spores ofPhanerochaete chrysosporium." Journal of Bacteriology 181, no. 17 (1999): 5350–54. http://dx.doi.org/10.1128/jb.181.17.5350-5354.1999.

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ABSTRACT Atomic force microscopy (AFM) has been used to probe, under physiological conditions, the surface ultrastructure and molecular interactions of spores of the filamentous fungus Phanerochaete chrysosporium. High-resolution images revealed that the surface of dormant spores was uniformly covered with rodlets having a periodicity of 10 ± 1 nm, which is in agreement with earlier freeze-etching measurements. In contrast, germinating spores had a very smooth surface partially covered with rough granular structures. Force-distance curve measurements demonstrated that the changes in spore surf

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LAI, CHUN-CHIH, NUNZIO MOTTA, and JOHN M. BELL. "ATOMIC FORCE MICROSCOPY MEASUREMENTS OF BOVINE SERUM ALBUMIN ADHESION FORCES ON SURFACES." International Journal of Nanoscience 07, no. 06 (2008): 299–303. http://dx.doi.org/10.1142/s0219581x08005468.

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A novel, direct technique has been developed to measure the interactions of bovine serum albumin (BSA) on surfaces by using atomic force microscopy (AFM) in a liquid environment. We have been able to measure adhesion forces between proteins and substrate surfaces in phosphate-buffered saline (PBS) solution directly, without any modification to the substrate and the AFM tip. Two different surfaces have been used in the measurements: mica (hydrophilic surface) and polystyrene (hydrophobic surface). The results show that a polystyrene surface has larger adhesion forces to BSA than a mica surface.

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Otto, Karen, Hans Elwing, and Malte Hermansson. "Effect of Ionic Strength on Initial Interactions ofEscherichia coli with Surfaces, Studied On-Line by a Novel Quartz Crystal Microbalance Technique." Journal of Bacteriology 181, no. 17 (1999): 5210–18. http://dx.doi.org/10.1128/jb.181.17.5210-5218.1999.

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ABSTRACT A novel quartz crystal microbalance (QCM) technique was used to study the adhesion of nonfimbriated and fimbriated Escherichia coli mutant strains to hydrophilic and hydrophobic surfaces at different ionic strengths. This technique enabled us to measure both frequency shifts (Δf), i.e., the increase in mass on the surface, and dissipation shifts (ΔD), i.e., the viscoelastic energy losses on the surface. Changes in the parameters measured by the extended QCM technique reflect the dynamic character of the adhesion process. We were able to show clear differences in the viscoelastic behav

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Šilhavý, Miroslav. "A direct approach to nonlinear shells with application to surface-substrate interactions." Mathematics and Mechanics of Complex Systems 1, no. 2 (2013): 211–32. http://dx.doi.org/10.2140/memocs.2013.1.211.

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Munoz‐Robles, Brizzia G., Irina Kopyeva, and Cole A. DeForest. "Surface Patterning of Hydrogel Biomaterials to Probe and Direct Cell–Matrix Interactions." Advanced Materials Interfaces 7, no. 21 (2020): 2001198. http://dx.doi.org/10.1002/admi.202001198.

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Riso, Marzia, Élie Michel, Axel Paris, Valentin Deschaintre, Mathieu Gaillard, and Fabio Pellacini. "Direct Manipulation of Procedural Implicit Surfaces." ACM Transactions on Graphics 43, no. 6 (2024): 1–12. http://dx.doi.org/10.1145/3687936.

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Procedural implicit surfaces are a popular representation for shape modeling. They provide a simple framework for complex geometric operations such as Booleans, blending and deformations. However, their editability remains a challenging task: as the definition of the shape is purely implicit, direct manipulation of the shape cannot be performed. Thus, parameters of the model are often exposed through abstract sliders, which have to be nontrivially created by the user and understood by others for each individual model to modify. Further, each of these sliders needs to be set one by one to achie

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LÃ¯Â¿Â½ttge, Andreas, and Pamela G. Conrad. "Direct Observation of Microbial Inhibition of Calcite Dissolution." Applied and Environmental Microbiology 70, no. 3 (2004): 1627–32. http://dx.doi.org/10.1128/aem.70.3.1627-1632.2004.

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ABSTRACT Vertical scanning interferometry (VSI) provides a method for quantification of surface topography at the angstrom to nanometer level. Time-dependent VSI measurements can be used to study the surface-normal retreat across crystal and other solid surfaces during dissolution or corrosion processes. Therefore, VSI can be used to directly and nondestructively measure mineral dissolution rates with high precision. We have used this method to compare the abiotic dissolution behavior of a representative calcite (CaCO3) cleavage face with that observed upon addition of an environmental microbe

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Gong, Xiangjun, Zhaohui Wang, and To Ngai. "Direct measurements of particle–surface interactions in aqueous solutions with total internal reflection microscopy." Chem. Commun. 50, no. 50 (2014): 6556–70. http://dx.doi.org/10.1039/c4cc00624k.

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This feature article reviews the experimental studies of the interactions between designed colloidal surfaces in the presence or absence of macromolecules/nanoparticles including depletion attraction, steric repulsion, bridging flocculation, and specific interactions by using Total Internal Reflection Microscopy.

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Lin, Shu-Ping. "(Invited) Application of Nanostructure for Improving the Interfacial Interactions between Sensing Surface and Targeted Particles." ECS Meeting Abstracts MA2024-01, no. 33 (2024): 1620. http://dx.doi.org/10.1149/ma2024-01331620mtgabs.

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Various interfacial interactions, encompassing screened Coulomb (electrostatic double layer) forces, Lifshitz-van der Waals forces, hydrophobic/hydrophilic interactions, as well as steric, chemical, morphological, and roughness effects, have been confirmed to play a crucial role in governing the interaction between target particles and the sensing surface. Small protrusions on the sensing surface can induce substantial variations in the surface’s interaction with the target analytes based on the extended Derjauin-Landau-Verwey-Overbeek (DLVO) theory. 1 Here, indium tin oxide coated vertical na

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Cohen, Miriam, Nancy Hurtado-Ziola, and Ajit Varki. "ABO blood group glycans modulate sialic acid recognition on erythrocytes." Blood 114, no. 17 (2009): 3668–76. http://dx.doi.org/10.1182/blood-2009-06-227041.

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Abstract ABH(O) blood group polymorphisms are based on well-known intraspecies variations in structures of neutral blood cell surface glycans in humans and other primates. Whereas natural antibodies against these glycans can act as barriers to blood transfusion and transplantation, the normal functions of this long-standing evolutionary polymorphism remain largely unknown. Although microbial interactions have been suggested as a selective force, direct binding of lethal pathogens to ABH antigens has not been reported. We show in this study that ABH antigens found on human erythrocytes modulate

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St-Onge, Dominique, and Claude Gicquaud. "Evidence of direct interaction between actin and membrane lipids." Biochemistry and Cell Biology 67, no. 6 (1989): 297–300. http://dx.doi.org/10.1139/o89-045.

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Actin is a protein component of the cystoskeleton and is involved in cell motility. It is believed generally that actin filaments are attached to the cell membrane through an interaction with membranous actin-binding proteins. By using an in vitro system composed of liposomes and actin, we have shown that actin may also interact directly with the phospholipids of the membrane. Actin deposited at the surface of the liposome is organized in two regular patterns: a paracrystalline sheet of parallel filaments in register, or a netlike organization. These interactions of actin with membrane lipids

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Sperling, Anne I., John R. Sedy, N. Manjunath, Abraham Kupfer, Blair Ardman, and Janis K. Burkhardt. "Cutting Edge: TCR Signaling Induces Selective Exclusion of CD43 from the T Cell-Antigen-Presenting Cell Contact Site." Journal of Immunology 161, no. 12 (1998): 6459–62. http://dx.doi.org/10.4049/jimmunol.161.12.6459.

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Abstract CD43, a large highly glycosylated molecule, is arguably the most abundant molecule on the surface of T cells. Nevertheless, the function of CD43 remains unclear. Utilizing fluorescence microscopy, we find that CD43 is excluded from the T cell-APC contact site. This exclusion is Ag dependent since optimal CD43 exclusion requires Ag-pulsed APC, and since signaling through CD3, in the absence of any other receptor ligand interactions, can induce the modulation of CD43. These data suggest that CD43 may function as a barrier to nonspecific T cell-APC interactions that is removed as a resul

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KLEYN, AART W. "ROTATIONAL RAINBOW SCATTERING OF ORIENTED MOLECULES." Surface Review and Letters 01, no. 01 (1994): 157–73. http://dx.doi.org/10.1142/s0218625x94000175.

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Molecule-surface interactions depend on many degrees of freedom. In this report one degree of freedom is discussed in particular: the dependence of the interaction on the molecular orientation. Using electrostatic fields a thermal beam of oriented NO molecules is produced. By scattering this beam from a crystal, steric effects are measured for the direct scattering and adsorption of NO on Ag(111) and Pt(111). The interaction is quite different for both systems. Nevertheless, rotational rainbow scattering when the O-end of the molecule is facing the surface is observed in both cases. For NO–Pt(

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Day, Christopher J., Elizabeth N. Tran, Evgeny A. Semchenko, et al. "Glycan:glycan interactions: High affinity biomolecular interactions that can mediate binding of pathogenic bacteria to host cells." Proceedings of the National Academy of Sciences 112, no. 52 (2015): E7266—E7275. http://dx.doi.org/10.1073/pnas.1421082112.

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Cells from all domains of life express glycan structures attached to lipids and proteins on their surface, called glycoconjugates. Cell-to-cell contact mediated by glycan:glycan interactions have been considered to be low-affinity interactions that precede high-affinity protein–glycan or protein–protein interactions. In several pathogenic bacteria, truncation of surface glycans, lipooligosaccharide (LOS), or lipopolysaccharide (LPS) have been reported to significantly reduce bacterial adherence to host cells. Here, we show that the saccharide component of LOS/LPS have direct, high-affinity int

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Cook, Steven R., and Mark A. Hoffbauer. "Understanding gas-surface interactions from direct force measurements using a specialized torsion balance." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 15, no. 3 (1997): 1553–57. http://dx.doi.org/10.1116/1.580630.

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Dinur, Uri, and Arnold T. Hagler. "Direct evaluation of nonbonding interactions from ab initio calculations." Journal of the American Chemical Society 111, no. 14 (1989): 5149–51. http://dx.doi.org/10.1021/ja00196a021.

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Meyer, Nils, Oleg Saburow, Martin Hohberg, Andrew N. Hrymak, Frank Henning, and Luise Kärger. "Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics." Journal of Composites Science 4, no. 2 (2020): 77. http://dx.doi.org/10.3390/jcs4020077.

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The behavior of fiber suspensions during flow is of fundamental importance to the process simulation of discontinuous fiber reinforced plastics. However, the direct simulation of flexible fibers and fluid poses a challenging two-way coupled fluid-structure interaction problem. Smoothed Particle Hydrodynamics (SPH) offers a natural way to treat such interactions. Hence, this work utilizes SPH and a bead chain model to compute a shear flow of fiber suspensions. The introduction of a novel viscous surface traction term is key to achieve full agreement with Jeffery’s equation. Careful modelling of

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Akashi, Sachiko, Shin-ichiroh Saitoh, Yasutaka Wakabayashi, et al. "Lipopolysaccharide Interaction with Cell Surface Toll-like Receptor 4-MD-2." Journal of Experimental Medicine 198, no. 7 (2003): 1035–42. http://dx.doi.org/10.1084/jem.20031076.

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Toll-like receptors (TLRs) are innate recognition molecules for microbial products, but their direct interactions with corresponding ligands remain unclarified. LPS, a membrane constituent of gram-negative bacteria, is the best-studied TLR ligand and is recognized by TLR4 and MD-2, a molecule associated with the extracellular domain of TLR4. Although TLR4-MD-2 recognizes LPS, little is known about the physical interaction between LPS and TLR4-MD-2. Here, we demonstrate cell surface LPS–TLR4-MD-2 complexes. CD14 greatly enhances the formation of LPS–TLR4-MD-2 complexes, but is not coprecipitate

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Wu, Di, and Alexandra Navrotsky. "Probing the energetics of organic–nanoparticle interactions of ethanol on calcite." Proceedings of the National Academy of Sciences 112, no. 17 (2015): 5314–18. http://dx.doi.org/10.1073/pnas.1505874112.

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Knowing the nature of interactions between small organic molecules and surfaces of nanoparticles (NP) is crucial for fundamental understanding of natural phenomena and engineering processes. Herein, we report direct adsorption enthalpy measurement of ethanol on a series of calcite nanocrystals, with the aim of mimicking organic–NP interactions in various environments. The energetics suggests a spectrum of adsorption events as a function of coverage: strongest initial chemisorption on active sites on fresh calcite surfaces, followed by major chemical binding to form an ethanol monolayer and, su

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Dales, S. L., and C. Anthony. "The interaction of methanol dehydrogenase and its cytochrome electron acceptor." Biochemical Journal 312, no. 1 (1995): 261–65. http://dx.doi.org/10.1042/bj3120261.

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A fluorescence method is described for direct measurement of the interaction between methanol dehydrogenase (MDH) and its electron acceptor cytochrome cL. This has permitted a distinction to be made between factors affecting electron transfer and those affecting the initial binding or docking process. It was confirmed that the initial interaction is electrostatic, but previous conclusions with respect to the mechanism of EDTA inhibition have been modified. It is proposed that the initial ‘docking’ of MDH and cytochrome cL is by way of ionic interactions between lysyl residues on its surface an

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Thordarson, Pall, Rob Atkin, Wouter H. J. Kalle, Gregory G. Warr, and Filip Braet. "Developments in Using Scanning Probe Microscopy To Study Molecules on Surfaces — From Thin Films and Single-Molecule Conductivity to Drug–Living Cell Interactions." Australian Journal of Chemistry 59, no. 6 (2006): 359. http://dx.doi.org/10.1071/ch06043.

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Scanning probe microscopy (SPM) techniques, including atomic force microscopy (AFM) and scanning tunnelling microscopy (STM), have revolutionized our understanding of molecule–surface interactions. The high resolution and versatility of SPM techniques have helped elucidate the morphology of adsorbed surfactant layers, facilitated the study of electronically conductive single molecules and biomolecules connected to metal substrates, and allowed direct observation of real-time processes such as in situ DNA hybridization and drug–cell interactions. These examples illustrate the power that SPM pos

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Jana, Pritam Kumar, and Bortolo Matteo Mognetti. "Surface-triggered cascade reactions between DNA linkers direct the self-assembly of colloidal crystals of controllable thickness." Nanoscale 11, no. 12 (2019): 5450–59. http://dx.doi.org/10.1039/c8nr10217a.

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Bertinetti, Luca, Anna Tampieri, Elena Landi, V. Bolis, C. Busco, and Gianmario Martra. "Surface Structure, Hydration and Cationic Sites of Nanohydroxyapatite." Key Engineering Materials 361-363 (November 2007): 87–90. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.87.

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In this work, we studied the surface/water interaction properties of a pure calcium hydroxyapatite (HA) and their modifications as a consequence of the partial Ca2+/Mg2+ (MHA) substitution by means of IR spectroscopy and microcalorimetry of adsorbed water. IR data indicated that water molecules in direct contact with the surface of HA are coordinated to surface cations and experience H-bond significantly stronger than in liquid water. The heats of adsorption associated to such interactions are very high, being twice-triple the heat of liquefaction of water. Interestingly, water experiences H-b

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Boffa, Vittorio, Cristian Lunghi, Cejna A. Quist-Jensen, Giuliana Magnacca, and Paola Calza. "Fabrication and Surface Interactions of Super-Hydrophobic Silicon Carbide for Membrane Distillation." Nanomaterials 9, no. 8 (2019): 1159. http://dx.doi.org/10.3390/nano9081159.

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Hydrophilic silicon carbide was modified by surface deposition of a super-hydrophobic coating that is based on perfluorosilanes. The modification was proven to yield membrane surfaces with contact angles that were higher than 145° and to be stable under hydrothermal conditions. The measurement of the isosteric heat of adsorption of water and toluene by microgravimetry showed that, after modification, the membrane material was fully covered by a low-energy surface, which is consistent with the fluorocarbon moieties that were introduced by the modification. The same modification method was appli

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Dastjerdi, Roya, Andreas Scherrieble, Shiva Bahrizadeh, Fatemeh Avareh Sadrabadi, and Laleh Hedayat. "A Key Major Guideline for Engineering Bioactive Multicomponent Nanofunctionalization for Biomedicine and Other Applications: Fundamental Models Confirmed by Both Direct and Indirect Evidence." BioMed Research International 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/2867653.

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This paper deals with the engineering multicomponent nanofunctionalization process considering fundamental physicochemical features of nanostructures such as surface energy, chemical bonds, and electrostatic interactions. It is pursued by modeling the surface nanopatterning and evaluating the proposed technique and the models. To this end, the effects of surface modifications of nanoclay on surface interactions, orientations, and final features of TiO2/Mt nanocolloidal textiles functionalization have been investigated. Various properties of cross-linkable polysiloxanes (XPs) treated samples as

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Pica, Andrea, and Giuseppe Graziano. "On urea's ability to stabilize the globule state of poly(N-isopropylacrylamide)." Physical Chemistry Chemical Physics 18, no. 21 (2016): 14426–33. http://dx.doi.org/10.1039/c5cp07507f.

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Kékicheff, Patrick. "From Heterocoagulation to Biorecognition: Preparation of Surfaces for Direct Measurement of Their Interactions in a Surface Force Apparatus." Macromolecular Symposia 335, no. 1 (2014): 24–42. http://dx.doi.org/10.1002/masy.201200119.

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