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1,619 Newest Publications about the topic solution
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Stacking‐Induced Diamagnetic/Paramagnetic Conversion of Imidazo[1,2‐a]pyridin‐2(3 H)‐one Derivatives: Near‐Infrared Absorption and Magnetic Properties in the Solid State
14-06-2013 | Guoping Yong, Xuerui Zhang, Yumei Zhao, Wenlong She, Chemistry - An Asian Journal, 2013
Abstract Herein, we present three imidazo[1,2‐a]pyridin‐2(3 H)‐one derivatives that are diamagnetic in solution, but paramagnetic in the solid state, possibly owing to a stacking‐induced formation of phenoxide‐type radicals. Notably, a larger bathochromic shift of the absorption (even up ...
Starch‐based biocomposite films reinforced with cellulose nanocrystals from garlic stalks
13-06-2013 | Melissa B. Agustin, Bashir Ahmmad, Enna Richel P. De Leon, Jerico L. Buenaobra, Joel R. Salazar, Fumihiko Hirose, Polymer Composites, 2013
The study was conducted to reinforce starch‐based biocomposite films using cellulose nanocrystals (CNCs) from garlic stalks. An average yield of 4.6% by mass based from air‐dried garlic stalks was obtained through alkali delignification, acid hydrolysis and sonication. The isolated CNCs are ...
Detection of Parathion Pesticide by Quartz Crystal Microbalance Functionalized with UV-Activated Antibodies
13-06-2013 | Riccardo Funari; Bartolomeo Della Ventura; Luigi Schiavo; Rosario Esposito; Carlo Altucci; Raffaele Velotta, Analytical Chemistry, 2013
Photonic immobilization technique (PIT) has been used to develop an immunosensor for the detection of parathion. An antibody solution has been activated by breaking the disulfide bridge in the triad Trp/Cys-Cys through absorption of ultrashort UV laser pulses. The free thiol groups so ...
Synthesis of Specific Solvatochromic D‐π‐A Dyes with Pyridinium Ring as Electron‐Withdrawing Group for Dye‐Sensitized Solar Cells
12-06-2013 | Yousuke Ooyama, Yuichiro Oda, Tomonobu Mizumo, Yutaka Harima, Joji Ohshita, European Journal of Organic Chemistry, 2013
Abstract Specific solvatochromic D‐π‐A‐type pyridinium dyes were designed and developed as photosensitizers for dye‐sensitized solar cells (DSSCs). The dyes have N‐sulfobutylpyridinium or N‐(carboxybutyl)pyridinium bromide as an electron‐withdrawing anchoring group. The two dyes show ...
Influence of Processing Solvents on Optical Properties and Morphology of a Semicrystalline Low Bandgap Polymer in the Neutral and Charged States
12-06-2013 | F. S. U. Fischer; K. Tremel; A.-K. Saur; S. Link; N. Kayunkid; M. Brinkmann; D. Herrero-Carvajal; J. T. López Navarr ..., Macromolecules, 2013
We present a systematic study of the morphology and absorption properties of a typical donor–acceptor polymer (PCPDTBT) with semicrystalline behavior in solution and in thin films. In-situ spectroelectrochemical data give information about the evolution of the absorption spectra from neutral ...
Conformational change, intrachain aggregation and photophysical properties of regioregular poly(3‐octylthiophene) in alkanes
11-06-2013 | Ruttayapon Potai, Anothai Kamphan, Rakchart Traiphol, Journal of Polymer Science Part B: Polymer Physics, 2013
ABSTACT This study explores the role of segmental solubility of regioregular poly(3‐octylthiophene) (rr‐P3OT) on chain organization and its photophysical properties. In good solvent chlorobenzene (CRB), rr‐P3OT chain adopts an extended conformation, allowing long conjugation length of ...
Performance of a UV‐assisted Hydrogen‐peroxide‐fed Spray Tower for Sulfur Dioxide Abatement
11-06-2013 | M. Codolo, W. Bizzo, R. Bertazzoli, Chemical Engineering & Technology, 2013
Abstract Spray towers are widely used for controlling air pollution by gases such as SO2, CO2, NOx, and HCl. Results of sulfur dioxide absorption in a spray tower using solutions of 1 g L–1 and 2 g L–1 of hydrogen peroxide are reported. For comparison, a water and sodium hydroxide ...
Ultrafast Fluorescence Quenching Dynamics of Atto655 in the Presence of N-Acetyltyrosine and N-Acetyltryptophan in Aqueous Solution: Proton-Coupled Electron Transfer versus Electron Transfer
11-06-2013 | Ying Zhang; Shuwei Yuan; Rong Lu; Anchi Yu, Journal of Physical Chemistry B, 2013
We studied the ultrafast fluorescence quenching dynamics of Atto655 in the presence of N-acetyltyrosine (AcTyr) and N-acetyltryptophan (AcTrp) in aqueous solution with femtosecond transient absorption spectroscopy. We found that the charge-transfer rate between Atto655 and AcTyr is about 240 ...
Biosorption of copper ions from aqueous solutions by Spirulina platensis biomass
10-06-2013 | Author(s): Ali A. Al-Homaidan , Hadeel J. Al-Houri , Amal A. Al-Hazzani , Gehan Elgaaly , Nadine M.S. Moubayed, Arabian Journal of Chemistry, 2013
Publication date: Available online 4 June 2013 Source:Arabian Journal of Chemistry Author(s): Ali A. Al-Homaidan , Hadeel J. Al-Houri , Amal A. Al-Hazzani , Gehan Elgaaly , Nadine M.S. Moubayed In this study, the economically important micro-alga (cyanobacterium) Spirulina ...
Removal, preconcentration and determination of Ni(II) from different environmental samples using modified magnetite nanoparticles prior to flame atomic absorption spectrometry
10-06-2013 | Author(s): Mohammad Ali Karimi , Manijeh Kafi, Arabian Journal of Chemistry, 2013
Publication date: Available online 3 June 2013 Source:Arabian Journal of Chemistry Author(s): Mohammad Ali Karimi , Manijeh Kafi In this paper, a simple, fast and reliable solid phase extraction (SPE) method to determine Ni(II) using dimethylglyoxim/sodium dodecyl sulfate-immobilized ...
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