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519.985 Aktuelle Fachpublikationen zum Thema temperature


Effect of Cationic Head Group on Micellization Behavior of New Amide Functionalized Surface Active Ionic Liquids

22.10.2014 | Raman Kamboj; Pankaj Bharmoria; Vinay Chauhan; Gurbir Singh; Arvind Kumar; Sukhprit Singh; Tejwant Singh Kang, Physical Chemistry Chemical Physics, 2014

Amide functionalized surface active ionic liquids (SAILs), 1-methyl-1-dodecyl pipyridinium chloride, [C12APip][Cl], 1-methyl-1-dodecyl pyrrolidinium chloride, [C12APyrr][Cl], 1-methyl-3-dodecyl imidazolium chloride, [C12Amim][Cl], and 1-methyl-1-dodecyl morpholinium chloride, [C12AMorph][Cl] have ...


Understanding the photothermal heating effect in non-lamellar liquid crystalline systems, and the design of new mixed lipid systems for photothermal on-demand drug delivery

22.10.2014 | Wye-Khay Fong; Tracey L. Hanley; Benjamin Thierry; Adam Tilley; Nigel Kirby; Lynne J. Waddington; Ben J. Boyd, Physical Chemistry Chemical Physics, 2014

Lipid-based liquid crystalline systems are showing potential as stimuli-responsive nanomaterials, and NIR-responsive gold nanoparticles have been demonstrated to provide control of transitions in non-lamellar phases. In this study, we focus on a deeper understanding of the photothermal response ...


Lanthanide organic-inorganic hybrids based on functionalized metal-organic frameworks (MOFs) for near-UV white LED

22.10.2014 | Ye Lu; Bing Yan, Chemical Communication, 2014

A novel near-UV white LED based on lanthanide organic-inorganic hybrid material is realized through postsynthetic modified MOFs and MOF-based polymer. The hybrids materials have high quantum yield and satisfactory luminescent stability; the assembled white LED has tuneable correlated color ...


Sensitive impedimetric biosensor based on duplex–like DNA scaffolds and ordered mesoporous carbon nitride for silver(I) ion detection

22.10.2014 | Yaoyu Zhou; Lin Tang; Xia Xie; Guangming Zeng; Jiajia Wang; Yaocheng Deng; Guide Yang; Chen Zhang; Yi Zhang; Jun Chen, Analyst, 2014

This study demonstrates a new unlabeled immobilized DNA–based biosensor with ordered mesoporous carbon nitride material (MCN) for detection of Ag+ by electrochemical impedance spectroscopy (EIS) with [Fe(CN)6]4–/3– as redox couple. The unlabeled immobilized DNA initially formed the hairpin ...


Micellar and vesicular nanoassemblies of triazole-based amphiphilic probes triggered by mercury(II) ions in a 100% aqueous medium

22.10.2014 | Inhye Kim; Na-Eun Lee; Yoo-Jeong Jeong; Young-Ho Chung; Byoung-Ki Cho; Eunji Lee, Chemical Communication, 2014

ABA-type amphiphiles bearing a triazole-based aromatic block were easily synthesized using click chemistry, which act as fluorescent turn-off Hg2+–chemoprobes in an aqueous solution. Interestingly, the metal-binding process of amphiphiles induced nanoassemblies even below the CMCs, and the ...


Sensitive marker bands for the detection of spin states of heme in surface-enhanced resonance Raman scattering spectra of metmyoglobin

22.10.2014 | Yasutaka Kitahama; Masatoshi Egashira; Toshiaki Suzuki; Ichiro Tanabe; Yukihiro Ozaki, Analyst, 2014

Surface-enhanced resonance Raman scattering (SERRS) spectra of myoglobin (Mb) with various ligands were measured. In the resonance Raman scattering (RRS) spectra, the peaks around at 1610 and 1640 cm–1 have been used to discriminate between the heme iron in high or low spin state so far. In the ...


Kinetic Analysis of Nitroxide Radical Formation Under Oxygenated Photolysis: Toward Quantitative Singlet Oxygen Topology

22.10.2014 | Malcolm Forbes; David F Zigler; Eva Chuheng Ding; Renat Khatmullin; Vanessa M DiPasquale; Valery F Tarasov; R. Brend ..., Photochemical & Photobiological Sciences, 2014

Reaction kinetics for two sterically hindered secondary amines with singlet oxygen have been studied in detail. A water soluble porphyrin sensitizer, 5,10,15,20-tetrakis-(4-sulfunatophenyl)-21,23H-porphyrin (TPPS), was irradiated in oxygenated aqueous solutions containing either ...


Modulation of active site electronic structure by the protein matrix to control [NiFe] hydrogenase reactivity

22.10.2014 | Dayle M. A. Smith; Simone Raugei; Thomas C. Squier, Physical Chemistry Chemical Physics, 2014

Control of the reactivity of the nickel center of the [NiFe] hydrogenase and other metalloproteins commonly involves outer coordination sphere ligands that act to modify the geometry and physical properties of the active site metal centers. We carried out a combined set of classical molecular ...


FD 177:Electron Transfer Quenching in Light Adapted and Mutant Forms of the AppA BLUF Domain

22.10.2014 | Sergey P Laptenok; Andras Lukacs; Richard Brust; Allison Haigney; Agnieszka Gil; Mike Towrie; Gregory M Greetham; P ..., Faraday Discussions, 2014

The Blue Light Using Flavin (BLUF) domain proteins are an important family of photoreceptors controlling a range of responses in a wide variety of organisms. The details of the primary photochemical mechanism, by which light absorption in the isoalloxazine ring of the flavin is converted into a ...


Supramolecular photochemistry: from molecular crystals to water-soluble capsules

22.10.2014 | V. Ramamurthy; Shipra Gupta, Chemical Society Reviews, 2014

Photochemical and photophysical behavior of molecules in supramolecular assemblies are different and more selective than in gas and isotropic solution phases. Knowledge of the inherent electronic and steric properties of the reactant is insufficient to predict the excited state behavior of ...


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