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Showing 9985 to 9996 of 14505 entries
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Induced preference for axial chirality in a triarylmethylium o,o-dimer upon complexation with natural γ-cyclodextrin: strong ECD signaling and fixation of supramolecular chirality to molecular chirality.

Chemical communications (Cambridge, England)

Suzuki T, Tamaoki H, Wada K, Katoono R, Nehira T, Kawai H, Fujiwara K.
PMID: 22297725
Chem Commun (Camb). 2012 Mar 14;48(22):2812-4. doi: 10.1039/c2cc17475h. Epub 2012 Feb 02.

The ratio of the easily interconverting rotational isomers of biphenyl-2,2'-diylbis[bis(4-dimethylaminophenyl)methylium] (R)/(S)-1a(2+) can be biased to prefer an R configuration upon 1:1 complexation with γ-cyclodextrin in water. Through the reaction with Na(2)S, the preference of 1a(2+)@γ-CyD for an axial chirality...

Enantioselective 5-endo-dig carbocyclization of β-ketoesters with internal alkynes employing a four-component catalyst system.

Angewandte Chemie (International ed. in English)

Suzuki S, Tokunaga E, Reddy DS, Matsumoto T, Shiro M, Shibata N.
PMID: 22422729
Angew Chem Int Ed Engl. 2012 Apr 23;51(17):4131-5. doi: 10.1002/anie.201201060. Epub 2012 Mar 15.

No abstract available.

Reversible chain association/dissociation via a CO2 responsive crosslinking/decrosslinking system.

Chemical communications (Cambridge, England)

Nagai D, Suzuki A, Maki Y, Takeno H.
PMID: 21713262
Chem Commun (Camb). 2011 Aug 21;47(31):8856-8. doi: 10.1039/c1cc12084k. Epub 2011 Jun 28.

Reversible chain association/dissociation phenomenon via CO(2) responsive crosslinking/decrosslinking was detected in aqueous solutions of polyallylamine (PAA). The chain association/dissociation behavior was reversible and useful in the synthesis of porous crosslinked polystyrene, which suggested potential utility in the area of...

Stereoselective triplet-sensitised radical reactions of furanone derivatives.

Chemistry (Weinheim an der Bergstrasse, Germany)

Jahjah R, Gassama A, Bulach V, Suzuki C, Abe M, Hoffmann N, Martinez A, Nuzillard JM.
PMID: 20151440
Chemistry. 2010 Mar 15;16(11):3341-54. doi: 10.1002/chem.200903045.

The stereo- and regioselectivity of triplet-sensitised radical reactions of furanone derivatives have been investigated. Furanones 7a,b were excited to the (3)pipi* state by triplet energy transfer from acetone. Intramolecular hydrogen abstraction then occurred such that hydrogen was transferred from...

Comparison of postoperative complications after endoscopic submucosal dissection: differences of insufflations and anesthesias.

Diagnostic and therapeutic endoscopy

Mori H, Kobara H, Muramatsu A, Inoue H, Kobayashi M, Nomura T, Hagiike M, Izuishi K, Suzuki Y, Gong J, Masaki T.
PMID: 21785562
Diagn Ther Endosc. 2011;2011:709237. doi: 10.1155/2011/709237. Epub 2011 Jul 07.

Endoscopic submucosal dissection (ESD) has enabled the collective resection and increased the accuracy of pathological diagnosis. However, ESD requires a long operation time, which results in increased doses of analgesics/sedatives, and causes worsening of respiratory and hemodynamic statuses. To...

Observation of surface structure of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide using high-resolution Rutherford backscattering spectroscopy.

The Journal of chemical physics

Nakajima K, Ohno A, Hashimoto H, Suzuki M, Kimura K.
PMID: 20687671
J Chem Phys. 2010 Jul 28;133(4):044702. doi: 10.1063/1.3465578.

The surface structures of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C(n)MIM][TFSI], n=2,4,6) are studied by high-resolution Rutherford backscattering spectroscopy. The average composition of the surface molecular layer is very close to the stoichiometric composition, showing that neither ion is enriched in the surface...

Statistics of photoelectric pulses for Gaussian-Lorentzian light.

Applied optics

Sonoda H, Kikkawa A, Suzuki N.
PMID: 20197923
Appl Opt. 1978 Apr 01;17(7):1006-11. doi: 10.1364/AO.17.001006.

The practical treatment of statistics for Gaussian-Lorentzian light is studied theoretically and experimentally by using the time interval distribution of photoelectric pulses, which is derived in two approaches that are based on Markovian processes and the generating function of...

Photoelectron imaging spectroscopy of S1(1B2u π,π*) benzene via 6(1)1n (n = 0-3) levels.

The journal of physical chemistry. A

Niu D, Ogi Y, Suzuki Y, Suzuki T.
PMID: 21366302
J Phys Chem A. 2011 Mar 24;115(11):2096-102. doi: 10.1021/jp110557n. Epub 2011 Mar 02.

We report resonance-enhanced two-photon ionization photo-electron spectroscopy of jet-cooled benzene via the 6(1)1(n) (n = 0-3) vibronic levels in S(1)((1)B(2u) π,π*) using a nanosecond UV laser and photoelectron imaging. The best energy resolution (ΔE/E) was 0.7%. The photoelectron spectrum...

Conformation dynamics of non-, singly- and doubly-N-fused [28]hexaphyrins revealed by photophysical studies.

Chemical communications (Cambridge, England)

Lim JM, Inoue M, Sung YM, Suzuki M, Higashino T, Osuka A, Kim D.
PMID: 21336393
Chem Commun (Camb). 2011 Apr 07;47(13):3960-2. doi: 10.1039/c0cc05822j. Epub 2011 Feb 21.

Conformational flexibility and balance between Möbius aromatic and Hückel antiaromatic conformers in [28]hexaphyrins depend on N-fused structure and meso-aryl substituents, revealed by various spectroscopic methods. In particular, the existence of the two conformers has been confirmed for singly-N-fused [28]hexaphyrins...

A method for rapid demineralization of teeth and bones.

The open dentistry journal

Cho A, Suzuki S, Hatakeyama J, Haruyama N, Kulkarni AB.
PMID: 21339898
Open Dent J. 2010 Dec 15;4:223-9. doi: 10.2174/1874210601004010223.

Tooth and bone specimen require extensive demineralization for careful analysis of cell morphology, as well as gene and protein expression levels. The LacZ gene, which encodes the ß-galactosidase enzyme, is often used as a reporter gene to study gene-structure...

Adaptive binarization using a hybrid image processing system.

Applied optics

Tokumitsu J, Kawata S, Ichioka Y, Suzuki T.
PMID: 20203838
Appl Opt. 1978 Aug 15;17(16):2655-7. doi: 10.1364/AO.17.002655.

Hybrid image processing has been described for adaptive binarization by efficiently combining optical analog and digital image processing techniques. A defocused image obtained by an optical system served as the 2-D variable contrast threshold for adaptive binarization in the...

Reversible helix-random coil transition of poly(m-phenylenediethynylene) by a rotaxane switch.

Chemical communications (Cambridge, England)

Suzuki S, Ishiwari F, Nakazono K, Takata T.
PMID: 22453762
Chem Commun (Camb). 2012 Jul 04;48(52):6478-80. doi: 10.1039/c2cc18116a. Epub 2012 Mar 27.

Pendant rotaxane switch-tethering poly(m-phenylene diethynylene) was synthesized by the polyoxidative coupling of a rotaxane containing an axle-terminal m-diethynylbenzene group and an optically active crown ether. The reversible helix-random coil transition of the polymer was successfully performed by the positional...

Showing 9985 to 9996 of 14505 entries