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Showing 25 to 36 of 1326 entries
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Enhancement of Near-IR Photoelectric Conversion in Dye-Sensitized Solar Cells Using an Osmium Sensitizer with Strong Spin-Forbidden Transition.

The journal of physical chemistry letters

Kinoshita T, Fujisawa J, Nakazaki J, Uchida S, Kubo T, Segawa H.
PMID: 26285857
J Phys Chem Lett. 2012 Feb 02;3(3):394-8. doi: 10.1021/jz2016445. Epub 2012 Jan 19.

A new osmium (Os) complex of the [Os(tcterpy)-(4,4'-bis(p-butoxystyryl)-2,2'-bipyridine)Cl]PF6 (Os-stbpy) has been synthesized and characterized for dye-sensitized solar cells (DSSCs). The Os-stbpy dye shows enhanced spin-forbidden absorptions around 900 nm. The DSSCs with Os-stbpy show a wide-band spectral response up...

Negative and positive cross-correlations of current noises in quantum Hall edge channels at bulk filling factor [Formula: see text].

Journal of physics. Condensed matter : an Institute of Physics journal

Ota T, Hashisaka M, Muraki K, Fujisawa T.
PMID: 28401878
J Phys Condens Matter. 2017 Jun 07;29(22):225302. doi: 10.1088/1361-648X/aa6cc0. Epub 2017 Apr 12.

Cross-correlation noise in electrical currents generated from a series connection of two quantum point contacts (QPCs), the injector and the detector, is described for investigating energy relaxation in quantum Hall edge channels at bulk filling factor [Formula: see text]....

Williamson Ether Synthesis with Phenols at a Tertiary Stereogenic Carbon: Formal Enantioselective Phenoxylation of β-Keto Esters.

Chemistry (Weinheim an der Bergstrasse, Germany)

Shibatomi K, Kotozaki M, Sasaki N, Fujisawa I, Iwasa S.
PMID: 26284459
Chemistry. 2015 Sep 28;21(40):14095-8. doi: 10.1002/chem.201502042. Epub 2015 Aug 18.

The enantioselective formation of α-aryloxy-β-keto esters is described for the first time. Lewis acid catalyzed enantioselective chlorination of β-keto esters and subsequent SN 2 reactions with phenols yielded α-aryloxy-β-keto esters with up to 96% ee. Favorskii rearrangement of α-chloro-β-keto...

Synthesis and Structural Features of Quadruple Helicenes: Highly Distorted π Systems Enabled by Accumulation of Helical Repulsions.

Journal of the American Chemical Society

Fujikawa T, Segawa Y, Itami K.
PMID: 26918641
J Am Chem Soc. 2016 Mar 16;138(10):3587-95. doi: 10.1021/jacs.6b01303. Epub 2016 Mar 04.

Quadruple helicenes, bearing dithia[6]helicene and [5]helicene substructures, were prepared by a well-controlled Scholl reaction. The 4-fold helicity provides 9 stereoisomers including 4 pairs of enantiomers and 1 meso isomer. Among them, differently distorted structures of a propeller-shaped isomer (QH-A)...

First demonstration of SiGe-based carrier-injection Mach-Zehnder modulator with enhanced plasma dispersion effect.

Optics express

Kim Y, Fujikata J, Takahashi S, Takenaka M, Takagi S.
PMID: 26906774
Opt Express. 2016 Feb 08;24(3):1979-85. doi: 10.1364/OE.24.001979.

We demonstrate a strained Si0.91Ge0.09-based carrier-injection Mach-Zehnder (MZ) optical modulator using the enhanced plasma dispersion effect in strained SiGe through mass modulation for the first time. The SiGe modulator has an injection current of 1.47 mA for a phase...

Successful crizotinib monotherapy in .

Respiratory medicine case reports

Yoshimura K, Inui N, Karayama M, Inoue Y, Enomoto N, Fujisawa T, Nakamura Y, Takeuchi K, Sugimura H, Suda T.
PMID: 28271038
Respir Med Case Rep. 2017 Feb 17;20:160-163. doi: 10.1016/j.rmcr.2017.02.009. eCollection 2017.

No abstract available.

Sensitization to secretoglobin and lipocalins in a group of young children with risk of developing respiratory allergy.

Clinical and molecular allergy : CMA

Nagao M, Borres MP, Sugimoto M, Petersson CJ, Nakayama S, Kuwabara Y, Masuda S, Dykiel P, Fujisawa T.
PMID: 28270741
Clin Mol Allergy. 2017 Mar 03;15:4. doi: 10.1186/s12948-017-0061-8. eCollection 2017.

BACKGROUND: Multiple sensitizations in early age have been reported to be a risk for development of asthma. This study evaluates the emergence and evolution of IgE to aeroallergens among a cohort of children with physician-diagnosed atopic dermatitis and/or showing...

Design and Synthesis of Mixed Oligomers with Thiophenes, Dithienothiophene S,S-Dioxides, Thieno[3,4]pyrazines and 2,1,3-Benzothiadiazoles: Flipper Screening for Mechanosensitive Systems.

ChemistryOpen

Verolet Q, Soleimanpour S, Fujisawa K, Dal Molin M, Sakai N, Matile S.
PMID: 26246986
ChemistryOpen. 2015 Jun;4(3):264-7. doi: 10.1002/open.201402139. Epub 2015 Feb 05.

Monomers with large surface area and high quantum yield, that is fluorescent flippers, have been engineered into twisted push-pull oligomers to create membrane probes with high mechanosensitivity and long fluorescence lifetime. Here, the synthesis and characterization of thieno[3,4]pyrazines and...

CH3NH3SnxPb(1-x)I3 Perovskite Solar Cells Covering up to 1060 nm.

The journal of physical chemistry letters

Ogomi Y, Morita A, Tsukamoto S, Saitho T, Fujikawa N, Shen Q, Toyoda T, Yoshino K, Pandey SS, Ma T, Hayase S.
PMID: 26270980
J Phys Chem Lett. 2014 Mar 20;5(6):1004-11. doi: 10.1021/jz5002117. Epub 2014 Mar 06.

We report photovoltaic performances of all-solid state Sn/Pb halide-based perovskite solar cells. The cell has the following composition: F-doped SnO2 layered glass/compact titania layer/porous titania layer/CH3NH3SnxPb(1-x)I3/regioregular poly(3-hexylthiophene-2,5-diyl). Sn halide perovskite itself did not show photovoltaic properties. Photovoltaic properties were...

A prospective study of atopic dermatitis managed without topical corticosteroids for a 6-month period.

Clinical, cosmetic and investigational dermatology

Fukaya M, Sato K, Yamada T, Sato M, Fujisawa S, Minaguchi S, Kimata H, Dozono H.
PMID: 27445501
Clin Cosmet Investig Dermatol. 2016 Jul 04;9:151-8. doi: 10.2147/CCID.S109946. eCollection 2016.

Topical corticosteroids (TCS) are regarded as the mainstay treatment for atopic dermatitis (AD). As AD has a tendency to heal naturally, the long-term efficacy of TCS in AD management should be compared with the outcomes seen in patients with...

Smoking as a confounding factor on the influence of cold therapy on the vascular endothelium function of young men.

Journal of physical therapy science

Noguchi M, Fujikawa R, Kimura A.
PMID: 24259776
J Phys Ther Sci. 2013 Oct;25(10):1285-8. doi: 10.1589/jpts.25.1285. Epub 2013 Nov 20.

[Purpose] This study was designed to determine whether smoking affects endothelium function after cold therapy in young men. [Subjects] The final cohort included 27 healthy men (age, 20-21 years). Because an impact on vascular endothelium function was anticipated to...

Patient-reported outcomes after discontinuation of long-term topical corticosteroid treatment for atopic dermatitis: a targeted cross-sectional survey.

Drug, healthcare and patient safety

Takahashi-Ando N, Jones MA, Fujisawa S, Hama R.
PMID: 25897263
Drug Healthc Patient Saf. 2015 Apr 07;7:57-62. doi: 10.2147/DHPS.S78016. eCollection 2015.

BACKGROUND: Topical corticosteroid (TCS) treatment is widely prescribed for atopic dermatitis (AD). However, TCS treatment is associated with tachyphylaxis, and discontinuation after long-term use may cause exacerbation of symptoms. Some AD patients are reluctant to use TCS.OBJECTIVE: To evaluate...

Showing 25 to 36 of 1326 entries