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731 Aktuelle Fachpublikationen zum Thema temperature

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Cool Microcontact Printing To Fabricate Thermosensitive Microgel Patterns

13.09.2013 | Jiaxi Peng; Dan Zhao; Xiaofeng Tang; Fei Tong; Li Guan; Yapei Wang; Meining Zhang; Tingbing Cao, Langmuir, 2013

A facile method, cool microcontact printing (cool μCP), of fabricating microgel patterns under ambient conditions is developed. By using spontaneously condensed water on the surface of cold items and the phase transition of polymer microgels below the lower critical solution temperature (LCST), a ...


Electroless Deposition of Platinum Nanoparticles in Room-Temperature Ionic Liquids

13.09.2013 | Da Zhang; Takeyoshi Okajima; Dalin Lu; Takeo Ohsaka, Langmuir, 2013

The electroless deposition of Pt nanoparticles (Pt-NPs) could be carried out by dissolving potassium tetrachloroplatinate(II) (K2[PtCl4]) in 1-ethyl-3-methylimidazolium (EMI+) room-temperature ionic liquids (RTILs) containing bis(trifluoromethylsulfonyl) imide (NTf2–) or tetrafluoroborate (BF4–) ...


Electrochemical Hydrogen Insertion in Substoichiometric Titanium Carbide TiC0.6: Influence of Carbon Vacancy Ordering

10.09.2013 | Julien Nguyen; Nicolas Glandut; Cédric Jaoul; Pierre Lefort, Langmuir, 2013

Substoichiometric titanium carbide of formula TiC0.6 with different degrees of carbon vacancy ordering has been synthesized first by reactive sintering at high temperature (2100 °C) and then by annealing at low temperature (730 °C) for different durations. The effect of annealing on the structure ...


Thermoresponsive Synthetic Polymer–Microtubule Hybrids

04.09.2013 | Kiyotaka Shigehara; Hiroki Kudoh; Takamasa Sakai; Yoshihito Osada; Yoshihiko Murakami; Kazuhiro Shikinaka, Langmuir, 2013

Thermoresponsive hybrids consisting of synthetic polymers and microtubules (MTs), i.e., assemblies of tubulins, were prepared by bonding MTs covalently to a few reactive units in a macromolecular strand. The hybrids exhibited the gel/sol transition because of the “assembling of tubulins to ...


Probing the Electronic Properties of Trimesic Acid Nanoporous Networks on Au(111)

29.08.2013 | Violeta Iancu; Kai-Felix Braun; Koen Schouteden; Chris Van Haesendonck, Langmuir, 2013

Nowadays molecular nanoporous networks have numerous uses in surface nanopatterning applications and in studies of host–guest interactions. Trimesic acid (TMA), a benzene derivative with three carboxylic groups, is a marvelous building block for forming 2D H-bonded porous networks. Here, we ...


Driving the Interactions between Organic Nanoparticles and Phospolipidic Membranes by an Easy Treatment of the Surface Stabilizer

29.08.2013 | Luigi Tarpani; Loredana Latterini, Langmuir, 2013

Polymer-stabilized perylene nanoparticles were prepared through a solvent exchange method. The formation of the nanostructures in aqueous solution was confirmed by the appearance of a red-shifted emission attributable to the formation of excimer-like aggregates. The behavior of organic ...


Temperature-Programmed Electrospray–Differential Mobility Analysis for Characterization of Ligated Nanoparticles in Complex Media

27.08.2013 | De-Hao Tsai; Frank W. DelRio; John M. Pettibone; Pin-Ann Lin; Jiaojie Tan; Michael R. Zachariah; Vincent A. Hackley, Langmuir, 2013

An electrospray–differential mobility analyzer (ES-DMA) was operated with an aerosol flow-mode, temperature-programmed approach to enhance its ability to characterize the particle size distributions (PSDs) of nanoscale particles (NPs) in the presence of adsorbed and free ligands. Titanium dioxide ...


Coarsening of Silver Nanoparticles in Polyelectrolyte Multilayers

27.08.2013 | Jingjing Wei; Liming Wang; Xin Zhang; Xiaojing Ma; Hui Wang; Zhaohui Su, Langmuir, 2013

In polyelectrolyte multilayer (PEM) films assembled from poly(diallyldimethylammonium chloride) and poly(styrene sulfonate) via the layer-by-layer deposition technique, the counterions were exchanged with silver ions, which were subsequently reduced in situ to produce silver (Ag) nanoparticles. ...


Adsorption and Release of Active Species into and from Multifunctional Ionic Microgel Particles

27.08.2013 | Haobo Chen; Lenore L. Dai, Langmuir, 2013

We synthesize monodisperse ionic microgel particles which undergo a large change in volume in response to environmental stimuli such as pH and temperature. In addition, the study elucidates the effective uptake and release of rheology modifiers from these microgel particles to alter the bulk ...


Photophysical Behavior of 8-Anilino-1-Naphthalenesulfonate in Vesicles of Pulmonary Surfactant Dipalmitoylphosphatidylcholine (DPPC) and Its Sensitivity toward the Bile Salt–Vesicle Interaction

26.08.2013 | Monalisa Mohapatra; Ashok K. Mishra, Langmuir, 2013

The photophysical behavior of 8-anilino-1-naphthalenesulphonate (ANS) in vesicles of dipalmitoylphosphatidylcholine (DPPC), a pulmonary surfactant, has been carried out in a detailed manner. ANS shows notable variations in fluorescence intensity, lifetime, and anisotropy parameters as it gets ...


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