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1,264 Newest Publications about the topic solution

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Chiral Cyclobutane β-Amino Acid-Based Amphiphiles: Influence of Cis/Trans Stereochemistry on Solution Self-Aggregation and Recognition

21-Aug-2015 | Alessandro Sorrenti; Ona Illa; Ramon Pons; Rosa M. Ortuño, Langmuir, 2015

Novel diastereomeric anionic amphiphiles based on the rigid cyclobutane β-amino acid scaffold have been synthesized and deeply investigated with the aim of generating new functional supramolecular architectures on the basis of the rational design of original amphiphilic molecules and the control ...

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Electrochemical Synthesis of Binary and Ternary Niobium-Containing Oxide Electrodes Using the p-Benzoquinone/Hydroquinone Redox Couple

21-Aug-2015 | Christopher M. Papa; Anthony J. Cesnik; Taylor C. Evans; Kyoung-Shin Choi, Langmuir, 2015

New electrochemical synthesis methods have been developed to obtain layered potassium niobates, KNb3O8 and K4Nb6O17, and perovskite-type KNbO3 as film-type electrodes. The electrodes were synthesized from aqueous solutions using the redox chemistry of p-benzoquinone and hydroquinone to change the ...

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Direct Observation of Ion Pairing at the Liquid/Solid Interfaces by Surface Enhanced Raman Spectroscopy

14-Aug-2015 | Ganganath S. Perera; Charles B. Nettles, II; Yadong Zhou; Shengli Zou; T. Keith Hollis; Dongmao Zhang, Langmuir, 2015

Ion-pairing, the association of oppositely charged ionic species in solution and at liquid/solid interfaces has been proposed as a key factor for a wide range of physicochemical phenomena. However, experimental observations of ion pairing at the ligand/solid interfaces are challenging due to ...

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Salt-Responsive Zwitterionic Polymer Brushes with Tunable Friction and Antifouling Properties

13-Aug-2015 | Jintao Yang; Hong Chen; Shengwei Xiao; Mingxue Shen; Feng Chen; Ping Fan; Mingqiang Zhong; Jie Zheng, Langmuir, 2015

Development of smart, multifunction materials is challenging but important for many fundamental and industrial applications. Here, we synthesized and characterized zwitterionic poly(3-(1-(4-vinylbenzyl)-1H-imidazol-3-ium-3-yl)propane-1-sulfonate) (polyVBIPS) brushes as ion-responsive smart ...

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Concentration Field Evolution during the Drying of a Thin Polymer Solution Film near the Contact Line

12-Aug-2015 | A. Babaie; B. Stoeber, Langmuir, 2015

An experimental study is performed for polymer concentration field measurements during the drying of an aqueous poly(vinyl alcohol) solution inside a shallow cavity near a vertical side wall. The measurements are based on optical techniques such as 3D confocal microscopy for laser-induced ...

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Blocking and Blending: Different Assembly Models of Cyclodextrin and Sodium Caseinate at the Oil/Water Interface

11-Aug-2015 | Hua-Neng Xu; Huan-Huan Liu; Lianfu Zhang, Langmuir, 2015

The stability of cyclodextrin (CD)-based emulsions is attributed to the formation of a solid film of oil–CD complexes at the oil/water interface. However, competitive interactions between CDs and other components at the interface still need to be understood. Here we develop two different routes ...

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Structure Characterization and Properties of Metal–Surfactant Complexes Dispersed in Organic Solvents

10-Aug-2015 | Pablo de la Iglesia; Vance W. Jaeger; Yuyin Xi; Jim Pfaendtner; Lilo D. Pozzo, Langmuir, 2015

This work describes the synthesis and characterization of metal–surfactant complexes. Dioctyl sulfosuccinate and dodecylbenzenesulfonate are associated with multivalent aluminum, iron, and vanadium ions using an ion exchange reaction. The metal complexes are dispersible in various organic ...

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Quantification of Amino Groups on Solid Surfaces Using Cleavable Fluorescent Compounds

07-Aug-2015 | Saori Shiota; Shunsuke Yamamoto; Ayane Shimomura; Akio Ojida; Takashi Nishino; Tatsuo Maruyama, Langmuir, 2015

We quantified amino groups displayed on inorganic and organic surfaces in aqueous solution using different types of cleavable fluorescent compounds and an aldehyde dye. The cleavable fluorescent compounds were designed to bind covalently to amino groups and then liberated under specific ...

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Citrate-Coated Silver Nanoparticles Interactions with Effluent Organic Matter: Influence of Capping Agent and Solution Conditions

07-Aug-2015 | Leonardo Gutierrez; Cyril Aubry; Mauricio Cornejo; Jean-Philippe Croue, Langmuir, 2015

Fate and transport studies of silver nanoparticles (AgNPs) discharged from urban wastewaters containing effluent organic matter (EfOM) into natural waters represent a key knowledge gap. In this study, EfOM interfacial interactions with AgNPs, and their aggregation kinetics were investigated by ...

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Translational Anisotropy and Rotational Diffusion of Gold Nanorods in Colloidal Sphere Solutions

06-Aug-2015 | Sharmine Alam; Ashis Mukhopadhyay, Langmuir, 2015

We studied the translational and rotational diffusion of gold nanorods within a rod/sphere composite liquid using fluctuation correlation spectroscopy (FCS). The nanorods of length L ∼ 60 nm and diameter d ∼ 17 nm were used at a fixed concentration of ∼1 pM. The concentration of colloidal Ludox ...

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