05.04.2013 | Chi M. Phan; Thu N. Le; Cuong V. Nguyen; Shin-ichi Yusa, Langmuir, 2013

The Gibbs adsorption equation has been indispensable in predicting the surfactant adsorption at the interfaces, with many applications in industrial and natural processes. This study uses a new theoretical framework to model surfactant adsorption at the air/water interface without the Gibbs ...

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05.04.2013 | Guangru Mao; Dina VanWyck; Xin Xiao; M. Catherine Mack Correa; Euen Gunn; Carol R. Flach; Richard Mendelsohn; Russel ..., Langmuir, 2013

Oleic acid (OA) is well-known to affect the function of the skin barrier. In this study, the molecular interactions between OA and model stratum corneum (SC) lipids consisting of ceramide, cholesterol, and palmitic acid (PA) were investigated with Langmuir monolayer and associated techniques. ...

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05.04.2013 | Stephen L. Christensen; Amares Chatt; Peng Zhang, Langmuir, 2013

We report the peptide-directed preparation and X-ray structural study of biofunctionalized Au nanoparticles (NPs) deposited on Ti surfaces. Au NPs were prepared by reduction of Au3+ compound onto HCl-refreshed Ti in the presence of thiol-functionalized small peptides. A modified extended ...

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05.04.2013 | Grégory Francius; Romain Henry; Jérôme F. L. Duval; Emmanuelle Bruneau; Jenny Merlin; Ahmad Fahs; Nathalie Leblond-B ..., Langmuir, 2013

The physicochemical determinants governing the temperature-dependent adhesion of Streptococcus thermophilus to abiotic surfaces are identified under physiological condition for cells either lacking or not the Rgg0182 transcriptional regulator involved in their thermal adaptation. For that ...

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04.04.2013 | Robert H. Temperton; James S. Sharp, Langmuir, 2013

Vibrations of small (microliter) sessile liquid droplets were studied using a simple optical deflection technique. The droplets were made to elongate in one direction by taking advantage of the anisotropic wetting of the liquids on structured diffraction grating surfaces. They were vibrated ...

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03.04.2013 | Elizabeth J. Martin; Robin Pourzal; Mathew T. Mathew; Kenneth R. Shull, Langmuir, 2013

The corrosion of CoCrMo, an alloy frequently used in orthopedic implants, was studied with an electrochemical quartz crystal microbalance (QCM) in three physiologically relevant solutions. Mass changes were measured during potentiodynamic tests, showing material deposition in protein ...

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03.04.2013 | Wen Zhang; Yang Li; Junfeng Niu; Yongsheng Chen, Langmuir, 2013

Oxidative stress induced by reactive oxygen species (ROS) is one of the major toxicity mechanisms of engineered nanoparticles (NPs). To advance our knowledge of the photogeneration of ROS on NPs, this Letter reports the ROS generation kinetics of uncoated silver (AgNPs), gold (AuNPs), nickel ...

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02.04.2013 | Aayush A. Shah; Benjamin Schultz; Kevin L. Kohlstedt; Sharon C. Glotzer; Michael J. Solomon, Langmuir, 2013

We report a method to synthesize and image Janus spheroid and “kayak” shaped patchy particles that combine both shape and interaction anisotropy. These particles are fabricated by sequentially combining evaporative deposition of chrome and gold with the uniaxial deformation of the colloidal ...

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02.04.2013 | Bihua Xia; Fang He; Lidong Li, Langmuir, 2013

A straightforward, economically viable, and green approach for the synthesis of well-stabilized Au/Ag bimetallic nanoparticles is described; this method uses nontoxic and renewable degraded pueraria starch (DPS) as a matrix and mild reaction conditions. The DPS acted as both a reducing agent ...

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02.04.2013 | Julian E. Santander; Michael Tsapatsis; Scott M. Auerbach, Langmuir, 2013

We have constructed and applied an algorithm to simulate the behavior of zeolite frameworks during liquid adsorption. We applied this approach to compute the adsorption isotherms of furfural–water and hydroxymethyl furfural (HMF)–water mixtures adsorbing in silicalite zeolite at 300 K for ...

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