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23,487 Newest Publications about the topic solution

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Star mesogens — Synthesis and structural characterization using 1D and 2D solution NMR techniques and mesophase characterization

17-10-2013 | A. Shanavas, T. Narasimhaswamy, B.V.N. Phani Kumar, A. Sultan Nasar, Canadian Journal of Chemistry, 2013

Utilisant des approches divergentes, on a réalisé des synthèses de nouveaux mésogènes en forme étoilée à base d'acide trimésique et des portions centrales portant des chaînes latérales symétriques se terminant par des groupes alcoxy. Les portions centrales et les chaînes latérales sont liées par ...

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Self-healing polyacrylic acid hydrogels

18-09-2013 | Umit Gulyuz; Oguz Okay, Soft Matter, 2013

pH responsive physical gels were prepared by micellar copolymerization of acrylic acid with 2 mol % stearyl methacrylate in the solution of worm-like sodium dodecyl sulfate micelles. The physical gels are insoluble in water and exhibit time-dependent dynamic moduli, high Young’s modulus (6 – 53 ...

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Thermal activation of catalytic microjets in blood samples using microfluidic chips

18-09-2013 | Lluis Soler; Cynthia S Martinez-Cisneros; Anka Swiersy; Samuel Sanchez; Oliver G. Schmidt, Lab on a Chip, 2013

We demonstrate that catalytic microjet engines can out-swim high complex media composed by red blood cells and serum. Despite the challenge presented by the high viscosity of the solution at room temperature, the catalytic microjets can be activated at physiological temperature and, consequently, ...

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Reaction of Sn44- in liquid ammonia: The formation of Rb6[([small eta]2-Sn4)Zn([small eta]3-Sn4)] [round bullet, filled] 5NH3

18-09-2013 | Franziska Fendt; Carina Koch; Stefanie Gaertner; Nikolaus Korber, Dalton Transactions, 2013

The reaction of Rb4Sn4 with ZnPh2 in liquid ammonia in the presence of [2.2.2]-cryptand yielded crystals of Rb6[(η2-Sn4)Zn(η3-Sn4)] • 5NH3, which could be characterized by single crystal X-ray diffraction. This is the first example of a successful solution reaction of the highly charged ...

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Complexation of pentiptycene-derived trans-bis(crown ether) host with different terminal functional paraquat derivatives in solution and solid state: a switchable complexation process controlled by potassium ions

18-09-2013 | Ying-Xian Ma; Ying Han; Jing Cao; Chuan-Feng Chen, Organic & Biomolecular Chemistry, 2013

Complexation behaviours between pentiptycene-derived bis(crown ether) containing two 24-crown-8 moieties in trans position and a series of paraquat derivatives with different terminal functional groups were investigated. It was found that these paraquat derivatives could all form stable 2:1 ...

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Self-healable polymer networks based on the cross-linking of epoxidised soybean oil by an aqueous citric acid solution

18-09-2013 | Facundo Ignacio Altuna; Valeria Pettarin; Roberto Williams, Green Chemistry, 2013

Epoxidised soybean oil (ESO) was cross-linked with an aqueous citric acid (CA) solution without the addition of any other catalyst or solvent. Completely bio-based polymer networks were generated. The initial system was an emulsion but it became a homogeneous and transparent polymer network by ...

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Sequential growth at the sub-10 nm scale of cyanide bridged coordination networks on inorganic surfaces

18-09-2013 | Simon Tricard; Fabrice Charra; Talal Mallah, Dalton Transactions, 2013

The elaboration of coordination networks’ nano-objects on surfaces can be realized by sequential growth in solution (SGS). This bottom-up strategy gives the possibility to control the size, the isolation and the organization of the objects with a precision going up to the molecular scale. ...

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Highly Durable Non-sticky Silver Film with Microball-nanosheet Hierarchical Structure Prepared by Chemical Deposition

17-09-2013 | Yunwen Wu; Tao Hang; Zheyin Yu, Chemical Communication, 2013

A microball-nanosheet hierarchical structured silver film was deposited on the copper substrate by the proper amount of NaH2PO2 adding into the bath solution. Non-sticky superhydrophobic surface has prepared by the modification of n- hexadecanethiol. It showed perfect behavior in anti-corrosion ...

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Substrate hydrolysis triggered formation of fluorescent gold nanoclusters – a new platform for the sensing of enzyme activity

17-09-2013 | Yang Chen; Huipeng Zhou; Yan Wang; Wenying Li; Jian Chen; Quan Lin; Cong Yu, Chemical Communication, 2013

Substrate hydrolysis was utilized to trigger a “top-down” etching process for the generation of fluorescent gold nanoclusters, and the changes in emission intensity of the assay solution provide a facile way for the sensing of enzyme activity.

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Revisit of a dipropargyl rhodamine probe reveals its alternative ion sensibility in both a solution and live cells

17-09-2013 | Kaibin Li; Xiao-Li Wei; Yi Zang; Xiao-Peng He; Guo-Rong Chen; J. Li; Kaixian Chen, Analyst, 2013

This study reveals that a dipropargyl rhodamine B derivative previously described as a reaction-based irreversible palladium probe responds, however, more sensitively to mercury with a reversible “turn-on” fluorescence. The probe also shows a much better imaging ability for mercury than for ...

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