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784 Aktuelle Fachpublikationen zum Thema temperature

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Interfacial Tension-Hindered Phase Transfer of Polystyrene-b-poly(ethylene oxide) Polymersomes from a Hydrophobic Ionic Liquid to Water

02.01.2015 | Soonyong So; Timothy P. Lodge, Langmuir, 2015

We examine the phase transfer of polystyrene-b-poly(ethylene oxide) (PS–PEO) polymersomes from a hydrophobic ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][TFSI]), into water. The dependence of the phase transfer on the molecular weight and PEO volume fraction ...

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Heating-Enabled Formation of Droplet Interface Bilayers Using Escherichia coli Total Lipid Extract

31.12.2014 | Graham J. Taylor; Stephen A. Sarles, Langmuir, 2014

Droplet interface bilayers (DIBs) serve as a convenient platform to study interactions between synthetic lipid membranes and proteins. However, a majority of DIBs have been assembled using a single lipid type, diphytanoylphosphatidylcholine (DPhPC). The work described herein establishes a new ...

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On the Redox Mechanism Operating along C2H2 Self-Assembly at the Surface of TiO2

31.12.2014 | Jakub Jan Biedrzycki; Stefano Livraghi; Ingrid Corazzari; Lorenzo Mino; Giuseppe Spoto; Elio Giamello, Langmuir, 2014

The interaction of acetylene with the TiO2 surface at room temperature entails a complex set of self-assembly reactions with the formation of products having relatively high molecular weight. In a previous paper by some of us (Jain, S. M.; et al. J. Mater. Chem. A 2014, 2, 12247−12254), the ...

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Aerosol-Assisted Controlled Packing of Silica Nanocolloids: Templateless Synthesis of Mesoporous Silicates with Structural Tunability and Complexity

31.12.2014 | Kyungmin Min; Chang Hyuck Choi; Myoung Yeob Kim; Minkee Choi, Langmuir, 2014

A template-free synthesis method for mesoporous and macro-/mesoporous hierarchically porous silicates with remarkable structural tunability and complexity is presented. SiO2 nanocolloids having diameters of 3.0–29 nm were prepared as a primary building block by using extended Stöber synthesis, ...

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Stimuli-Responsive Colloidal Assembly Driven by Surface-Grafted Supramolecular Moieties

26.12.2014 | Isja de Feijter; Lorenzo Albertazzi; Anja R.A. Palmans; Ilja K. Voets, Langmuir, 2014

A robust method is described for precisely functionalizing silica colloids with short-chain alkanes and self-associating o-nitrobenzyl protected benzene-1,3,5-tricarboxamides (BTAs). Controlled deprotection affords activation of the latent supramolecular moieties by facilitating short-range ...

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Ion-Unquenchable and Thermally “On–Off” Reversible Room Temperature Phosphorescence of 3-Bromoquinoline Induced by Supramolecular Gels

24.12.2014 | Hong Wang; Hao Wang; Xiaoqiong Yang; Qin Wang; Yajiang Yang, Langmuir, 2014

Ion-unquenchable and thermally on–off reversible room temperature phosphorescence (RTP) can be induced by entrapping 3-bromoquinoline (3-BrQ) into supramolecular gels formed by the self-assembly of a sorbitol derivative (DBS). In comparison with conventional substrates inducing RTP, the gel state ...

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Ortho and Para Hydrogen Dimers on G/SiC(0001): Combined STM and DFT Study

23.12.2014 | P. Merino; M. Švec; J. I. Martínez; P. Mutombo; C. Gonzalez; J. A. Martín-Gago; P. L. de Andres; P. Jelinek, Langmuir, 2014

The hydrogen (H) dimer structures formed upon room-temperature H adsorption on single layer graphene (SLG) grown on SiC(0001) are addressed using a combined theoretical–experimental approach. Our study includes density functional theory (DFT) calculations for the full (6√3 × 6√3)R30° unit cell of ...

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Local Liquid Phase Deposition of Silicon Dioxide on Hexagonally Close-Packed Silica Beads

23.12.2014 | Seo Young Yoon; Yi-Seul Park; Jin Seok Lee, Langmuir, 2014

Liquid phase deposition (LPD) is a useful method for the production of oxide film with low reaction temperature and production cost. With the report that the LPD of oxide films is conformally processed with uniform thickness and composition, there has been significant attention given to ...

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Recrystallized S-Layer Protein of a Probiotic Propionibacterium: Structural and Nanomechanical Changes upon Temperature or pH Shifts Probed by Solid-State NMR and AFM

22.12.2014 | Paulo de sa Peixoto; Claire Roiland; Daniel Thomas; Valérie Briard-Bion; Rozenn Le Guellec; Sandrine Parayre; Stépha ..., Langmuir, 2014

Surface protein layers (S layers) are common constituents of the bacterial cell wall and originate from the assembly of strain-dependent surface layer proteins (Slps). These proteins are thought to play important roles in the bacteria’s biology and to have very promising technological ...

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Particle Placement and Sheet Topological Control in the Fabrication of Ag–Hexaniobate Nanocomposites

22.12.2014 | Shiva Adireddy; Taha Rostamzadeh; Cecilia E. Carbo; John B. Wiley, Langmuir, 2014

Synthetic methods are demonstrated that allow for the fabrication of Ag–hexaniobate nanocomposites with directed nanoparticle (NP) placement and nanosheet morphological control. The solvothermal treatment of exfoliated nanosheets (NSs) in the presence of Ag NPs leads to a high yield of Ag ...

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