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1,067 Newest Publications about the topic solution

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Controlling Polymer Translocation and Ion Transport via Charge Correlations

24-10-2014 | Sahin Buyukdagli; T. Ala-Nissila, Langmuir, 2014

We develop a correlation-corrected transport theory in order to predict ionic and polymer transport properties of membrane nanopores under physical conditions where mean-field electrostatics breaks down. The experimentally observed low KCl conductivity of open α-hemolysin pores is quantitatively ...

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Adsorption of Proteins at the Solution/Air Interface Influenced by Added Nonionic Surfactants at Very Low Concentrations for Both Components. 2. Effect of Different Surfactants and Theoretical Model

21-10-2014 | V. B. Fainerman; M. Lotfi; A. Javadi; E. V. Aksenenko; Yu. I. Tarasevich; D. Bastani; R. Miller, Langmuir, 2014

The influence of the addition of the nonionic surfactants dodecyl dimethyl phosphine oxide (C12DMPO), tetradecyl dimethyl phosphine oxide (C14DMPO), decyl alcohol (C10OH), and C10EO5 at concentrations between 10–5 and 10–1 mmol/L to solutions of β-casein (BCS) and β-lactoglobulin (BLG) at a fixed ...

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Interactions between a Series of Pyrene End-Labeled Poly(ethylene oxide)s and Sodium Dodecyl Sulfate in Aqueous Solution Probed by Fluorescence

21-10-2014 | Shaohua Chen; Jean Duhamel; Baoliang Peng; Masuduz Zaman; Kam C. Tam, Langmuir, 2014

The interactions between a series of poly(ethylene oxide)s covalently labeled at both ends with pyrene pendants (PEO(X)-Py2, where X represents the number-average molecular weight of the PEO chains and equals 2K, 5K, 10K, and 16.5K) and an ionic surfactant, namely, sodium dodecyl sulfate (SDS), ...

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Almost Fooled Again: New Insights into Cesium Dodecyl Sulfate Micelle Structures

20-10-2014 | Han Seung Lee; Manickam Adhimoolam Arunagirinathan; Apostolos Vagias; Sangwoo Lee; Jayesh R. Bellare; H. Ted Davis; ..., Langmuir, 2014

Replacing sodium with cesium as the counterion for dodecyl sulfate in aqueous solution results in stronger complexation and charge shielding, which should lead to larger micelles and ultimately to a cylindrical structure (cf. spheres for sodium dodecyl sulfate), but small angle X-ray scattering ...

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Assessing the Blinking State of Fluorescent Quantum Dots in Free Solution by Combining Fluorescence Correlation Spectroscopy with Ensemble Spectroscopic Methods

20-10-2014 | Chaoqing Dong; Heng Liu; Jicun Ren, Langmuir, 2014

The current method for investigating the blinking behavior is to immobilize quantum dots (QDs) in the matrix and then apply a fluorescent technique to monitor the fluorescent trajectories of individual QDs. So far, no method can be used to directly assess the blinking state of ensemble QDs in ...

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Mechanistic Studies of Silica Polymerization from Supersaturated Aqueous Solutions by Means of Time-Resolved Light Scattering

16-10-2014 | M. Kley; A. Kempter; V. Boyko; K. Huber, Langmuir, 2014

Silica polymerization in a supersaturated aqueous solution of sodium silicate is a fundamental mineralization process with broad relevance for technical applications as well as for biological processes. To contribute to a better understanding of the mechanism underlying the polymerization of ...

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Dibenzo Crown Ether Layer Formation on Muscovite Mica

16-10-2014 | Wester de Poel; Stelian Pintea; Aryan de Jong; Jakub Drnec; Francesco Carlà; Roberto Felici; Huub op den Camp; Johan ..., Langmuir, 2014

Stable layers of crown ethers were grown on muscovite mica using the potassium–crown ether interaction. The multilayers were grown from solution and from the vapor phase and were analyzed with atomic force microscopy (AFM), matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) ...

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From Nanodroplets by the Ouzo Effect to Interfacial Nanolenses

13-10-2014 | Shuhua Peng; Chenglong Xu; Timothy C. Hughes; Xuehua Zhang, Langmuir, 2014

Polymerizing nanodroplets at solid–liquid interfaces is a facile solution-based approach to the functionalization of large surface areas with polymeric lens-shaped nanostructures. In this work, we have applied a one-pot approach to obtain polymeric nanolenses with controlled sizes and densities. ...

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On-Demand Droplet Fusion: A Strategy for Stimulus-Responsive Biosensing in Solution

09-10-2014 | Praveena Mohan; Patrick S. Noonan; Matthew A. Nakatsuka; Andrew P. Goodwin, Langmuir, 2014

A novel strategy is reported for biochemically controlled fusion of oil-in-water (O/W) droplets as an in-solution sensor for biological targets. Inspired by the SNARE complex in cells, the emulsions were stabilized by a combination of phospholipids, phospholipid–poly(ethylene glycol) conjugates, ...

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Insights into the Aggregation/Deposition and Structure of a Polydopamine Film

09-10-2014 | Yonghui Ding; Lu-Tao Weng; Meng Yang; Zhilu Yang; Xiong Lu; Nan Huang; Yang Leng, Langmuir, 2014

Surface-adherent polydopamine (PDA) films as multifunctional coatings can be easily deposited onto a wide range of materials through dopamine self-polymerization. However, a lack of in-depth understanding of PDA aggregation and deposition processes and definite structure elucidation of PDA make ...

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