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38,432 Newest Publications about the topic solution

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Single Molecular Study of pH Effect on Charge Neutralization of DNA

19-Jul-2016 | Zilong Guo; Yanwei Wang; Anthony Yang; Guangcan Yang, Soft Matter, 2016

Charge inversion and condensation of DNA in solutions of trivalent and quadrivalent counterions are significantly influenced by the pH value of the solution. We systematically investigated the condensation and charge compensation of DNA by spermidine, hexammine cobalt(iii) (cohex, [Co(NH3)6]3+) ...

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Surface directed reversible imidazole ligation to nickel(II) octaethylporphyrin at the solution/solid interface: a single molecule level study

19-Jul-2016 | Goutam Nandi; Bhaskar Chilukuri; K. W. Hipps; Ursula Mazur, Physical Chemistry Chemical Physics, 2016

Scanning tunneling microscopy (STM) is used to study for the first time the reversible binding of imidazole (Im) and nickel(ii) octaethylporphyrin (NiOEP) supported on highly oriented pyrolytic graphite (HOPG) at the phenyloctane/NiOEP/HOPG interface at 25 °C. The ligation of Im to the NiOEP ...

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Synthesis and Electronic Structure Determination of Uranium(VI) Ligand Radical Complexes

19-Jul-2016 | Khrystyna Herasymchuk; Linus Chiang; Cassandra E Hayes; Matthew L. Brown; Jeffrey Ovens; Brian O. Patrick; Daniel B ..., Dalton Transactions, 2016

Pentagonal bipyramidal uranyl ([UO2]2+) complexes of salen ligands, N,N’-bis(3-tert-butyl-(5R)-salicylidene)-1,2-phenylenediamine, in which R = tBu (1a), OMe (1b), and NMe2 (1c), were prepared and the electronic structure of the one-electron oxidized species [1a-c]+ were investigated in solution. ...

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Fluorescence of a Triple-Stranded Helicate Iron(III) Complex from a Novel Bis-[small beta]-diketone Ligand: Synthesis, Structure and Spectroscopic Studies

19-Jul-2016 | Fang Zou; Xiao Tang; Yuhong Huang; Shigang Wan; Fa Lu; Zhening Chen; Anan Wu; Hui Zhang, CrystEngComm, 2016

A new bis--diketone ligand 3,5-bis-(3-oxobutanoyl)benzoic acid (BOBA), has been designed and prepared for the self-assembly of dinuclear triple-helical Fe(III) complex Fe2(BOBA)3 and mononuclear Cd(II) complex Cd(BOBA)2(py)3. The ligand BOBA was proved to exist in enol form in both solid-state ...

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Synthesis and characterization of pristine closo - [Ge10]2–

19-Jul-2016 | Manuel M Bentlohner; Christina Fischer; Thomas F Fässler, Chemical Communication, 2016

The first [Ge10]2– Zintl anion, which is neither filled nor connected to another metal atom is presented in terms of X-ray structure, Raman-spectrum and ESI-MS. Pure [Ge10]2–, adapting a D4d symmetric closo-structure, were crystallized from a Rb4Ge9/ethylendiamine solution, containing ...

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A diffuse‐interface modeling for liquid solution – solid gel phase transition of physical hydrogel with nonlinear deformation

16-Jul-2016 | Hua Li, Tao Wu, ELECTROPHORESIS, 2016

A diffuse‐interface model is presented in this paper for simulation of the evolution of phase transition between the liquid solution and solid gel states for physical hydrogel with nonlinear deformation. The present domain covers the gel and solution states as well as a diffuse interface between ...

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Polyamide/polyacrylonitrile thin film composites as forward osmosis membranes

15-Jul-2016 | Parisa Hajighahremanzadeh, Mahsa Abbaszadeh, Seyyed Abbas Mousavi, Mohammad Soltanieh, Hadi Bakhshi, Journal of Applied Polymer Science, 2016

ABSTRACT Thin film composites (TFCs) as forward osmosis (FO) membranes for seawater desalination application were prepared. For this purpose, polyacrylonitrile (PAN) as a moderately hydrophilic polymer was used to fabricate support membranes via nonsolvent‐induced phase inversion. A selective ...

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Synthesis and application of sodium 2‐acrylamido‐2‐methylpropane sulphonate/N‐vinylcaprolactam/divinyl benzene as a high‐performance viscosifier in water‐based drilling fluid

15-Jul-2016 | Binqiang Xie, Xiaodong Liu, Huiqiang Wang, Lihui Zheng, Journal of Applied Polymer Science, 2016

ABSTRACT Aiming at good thickening ability and temperature resistance in water‐based drilling fluid, a novel copolymer viscosifier (SDKP) of sodium 2‐acrylamido‐2‐methylpropane sulfonate (NaAMPS) with N‐vinylcaprolactam (NVCL) and cross‐linking divinylbenzene (DVB) was prepared by micellar ...

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Phosphate removal by Ce(III)‐impregnated crosslinked chitosan complex from aqueous solutions

15-Jul-2016 | Pan Hu, Qian Liu, Jing Wang, Ruihua Huang, Polymer Engineering and Science, 2016

A novel adsorbent, Ce(III)‐impregnated crosslinked chitosan complex (Ce‐CCS) was prepared by the methods of membrane‐forming and crosslinking for the removal of phosphate from aqueous solutions. Ce‐CCS was characterized by FTIR, X‐ray diffraction, and scanning electron microscopy combined with ...

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Viscoelastic behaviour effect of hyaluronic acid on reciprocating flow inside mini‐channel

15-Jul-2016 | Alaleh Safari, Michel J. Cervantes, Nazanin Emami, Tribotest, 2016

Abstract One of the most successful surgeries during the 21st century is total joint replacement (TJR) with material combination of polymer‐on‐metal (PoM). Despite its success, wear particle generation at the interface of the polymer and metal causes eventually implant loosening. Investigating ...

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