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Runping Wang, Wei Cui, Zhijian Tan, Shian Zhong, Fenfang Li
2016 Volume 45 Issue 6 Pages
586-588
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 03, 2016
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Supplementary material
The disulfosuccinate sodium salt of lutein (Ldss) was prepared for the first time and an obvious blue shift appeared in the UV absorption spectra of its aqueous solution due to the formation of substantial H-type aggregates. The experimental results reflected the improved properties of Ldss, including excellent stability to alkaline solution at ambient temperature in the dark as well as better aqueous solubility and radical scavenging ability compared with those of lutein and the disodium disuccinate of lutein.
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Ryo Kawatani, Kai Kan, Malcolm A. Kelland, Mitsuru Akashi, Hiroharu Aj ...
2016 Volume 45 Issue 6 Pages
589-591
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 03, 2016
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Supplementary material
N-Vinylamide derivatives, such as
N-
n-butyl-
N-vinylformamides and
N-isobutyl-
N-vinylformamides were synthesized and copolymerized with
N-vinylformamide and
N-methyl-
N-vinylacetamide. Lower critical solution temperature values of the copolymers were observed over a wide range of temperatures. The thermosensitive behaviors of copolymers were controlled not only by the induction rate of alkylation of
N-vinylamides at the amide position but also by the chemical structures, including the hydrogen atom of the secondary amide group.
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Shude Zhang, Lei Lei, Songwang Yang, Xiaomin Li, Yan Liu, Qianqian Gao ...
2016 Volume 45 Issue 6 Pages
592-594
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 04, 2016
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Supplementary material
To achieve high efficiency, the blocking layer is of vital importance to perovskite solar cells. To investigate the influence of the morphology, conductivity, and photoluminescence quenching ability of the TiO
2 blocking layers on device performance, three deposition methods (magnetron sputtering, spray pyrolysis, and spin coating) were adopted. High-quality TiO
2 blocking layers should be homogeneous, highly compact, highly conductive, and efficient on photoluminescence quenching and electron extraction.
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Zhiyuan Zhu, Min Yu, Yufeng Jin
2016 Volume 45 Issue 6 Pages
595-597
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
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In this letter, we propose a novel and practicable route for fabricating a highly sensitive, recyclable surface-enhanced Raman scattering (SERS) sensor based on the Ag-Zn(OH)F network. The fabricated Ag-Zn(OH)F network showed rapid photocatalytic activities under ultraviolet (UV) irradiation, which formed the premise for the recyclable SERS substrate. The fabricated SERS sensor was able to detect Rhodamine-6G (R6G) in low concentrations ranging from 10
−13 to 10
−8 M. The ability to detect multicomponent analytes was also demonstrated by detecting mixtures of R6G and 4-methylbenzoic acid (4-MBA). In addition, the detection sensitivity was enhanced by bending the microcapillary.
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Li Sheng, Kensuke Kurihara
2016 Volume 45 Issue 6 Pages
598-600
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 11, 2016
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Supplementary material
Giant vesicles capable of generating a catalytic amphiphile that promoted vesicular membrane production were prepared. The catalyst was derived from decylaniline on the vesicles and a catalytic aldehyde present outside the vesicles. Once the catalyst was generated inside the vesicular membrane, they proliferated via a peeling-off process after membrane aldehyde addition.
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Haruko Goto, Tomoyuki Tajima, Kazumasa Kobayashi, Yutaka Takaguchi, Kh ...
2016 Volume 45 Issue 6 Pages
601-603
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 11, 2016
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Supplementary material
We succeeded in synthesizing edge-brominated zeolite-templated carbon (ZTC-Br) as the key intermediate of edge-functionalization of ZTC via an electrophilic aromatic substitution reaction using dibromoisocyanuric acid. ZTC-Br was easily converted into carbazole-modified ZTC (ZTC-Cz) using Suzuki–Miyaura coupling. Interestingly, solvent-dependent changes of the fluorescence intensity of ZTC-Cz owing to its swelling–shrinking behavior were observed.
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Hirotaka Ejima, Kazuhiro Ogita, Midori Yamamoto, Sono Sasaki, Takaaki ...
2016 Volume 45 Issue 6 Pages
604-606
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 11, 2016
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Supplementary material
Epitaxial crystallization onto a directionally crystallizable organic solvent, 1,3,5-trichlorobenzene, was applied to polymer blends containing regioregular poly(3-hexylthiophene-2,5-diyl) (P3HT) and either polystyrene (PS) or regiorandom poly(3-dodecylthiophene-2,5-diyl) (P3DDT). Well-ordered lamellae-in-lamella and dots-in-lamella structures were observed for P3HT/PS and P3HT/P3DDT, respectively. P3HT/PS gave more-discernible lamellar nanopatterns than did P3HT/P3DDT, owing to miscibility differences. Grazing-incidence wide-angle X-ray diffraction analysis, and polarized UV–visible absorption spectroscopy revealed that the P3HT crystalline lamellae were oriented edge-on in the thin films. Polymer blend nanostructures were also obtained when a third component, phenyl-C
61-butyric acid methyl ester, was present, thus demonstrating the potential of this strategy for engineering the nanostructure of the active layers in P3HT-based electronic devices.
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Xiu-min Zhang, Hong-jiang Ni, Jin-gang Liu, Shi-yong Yang
2016 Volume 45 Issue 6 Pages
607-609
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 11, 2016
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Supplementary material
Novel ether-bridged fluorinated poly(phenylquinoxaline) (PEPPQ) dielectric films with enhanced glass-transition temperatures (
Tg) have been developed in order to meet the high-temperature demands for interlayer dielectrics used in microelectronic fabrication. The PEPPQ films were prepared from newly-developed aromatic bis(α-diketone) monomers containing
ortho-substituted methyl groups (2-1) or a fluorene moiety (2-2) in their molecular structures. The obtained PEPPQ films exhibited excellent combined properties, including high thermal stability with
Tg over 260 °C, high electrical insulating characteristics with a volume resistivity of over 10
17 Ω cm, and a dielectric strength higher than 212 V μm
−1. Besides, the bulky substituents and low-molar-electronegative trifluoromethyl groups endowed the polymers with low dielectric constants (
DK < 2.82 at 1 MHz) and good water repellent property.
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Shota Taniguchi, Anatoly Zinchenko, Shizuaki Murata
2016 Volume 45 Issue 6 Pages
610-612
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 11, 2016
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Supplementary material
DNA hydrogel was used as a template to fabricate both core–shell- and alloy-type bimetallic Au–Ag nanoparticles by either sequential or simultaneous reduction of the corresponding metal precursors, respectively. The proposed method is used to synthesize several nanometer-sized bimetallic colloids and is characterized by simplicity, robustness, and benign synthetic conditions.
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Hemant Choudhary, Kohki Ebitani
2016 Volume 45 Issue 6 Pages
613-615
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 12, 2016
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Supplementary material
The aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) was investigated over hydrotalcite (HT)-supported various catalysts composed of PVP-capped Au, Pd, or Pt. Among all prepared catalysts, Pd
20Pt
80-PVP/HT possessed highest activity for FDCA formation. Pd
xPt
y-PVP/HT is characterized by UV–vis spectroscopy, TEM, XRD, and XPS techniques.
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Atsushi Seki, Masahiro Funahashi
2016 Volume 45 Issue 6 Pages
616-618
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 12, 2016
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Supplementary material
Photovoltaic effects in ferroelectrics have attracted much attention due to their potential of generating a large open-circuit voltage. Recently, we focus on an anomalous photovoltaic effect in ferroelectric liquid-crystalline (FLC) phase. In this work, we have synthesized FLC phenylterthiophene derivatives, whose carrier mobilities have different magnitudes. They show anomalous photovoltaic effects in their FLC phases. The photocurrent response is correlated with the carrier mobility and spontaneous polarization in the FLC phase instead of ionic impurities.
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Atsushi Kobayashi, Sogo Furugori, Masaki Yoshida, Masako Kato
2016 Volume 45 Issue 6 Pages
619-621
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 16, 2016
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Supplementary material
We synthesized a novel tris(bipyridyl)Ru(II) complex with sulfonic acid groups, [Ru(dSbpy)(bpy)
2] (
RuCS2; H
2dSbpy: 2,2′-bipyridine-4,4′-bis(methanesulfonic acid)). The photosensitizing efficiency of water oxidation in the presence of a Na
2S
2O
8 sacrificial electron acceptor was higher than that of the widely used phosphonic acid analog, [Ru(H
4dPbpy)(bpy)
2]Cl
2 (
RuCP2; H
4dPbpy: 2,2′-bipyridine-4,4′-bis(methanephosphonic acid)). The photosensitizing efficiency of
RuCP2 for water oxidation was remarkably enhanced by immobilization onto semiconducting TiO
2 nanoparticles.
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Yukihiro Okamoto, Takumi Ikeda, Keishi Suga, Hiroshi Umakoshi
2016 Volume 45 Issue 6 Pages
622-624
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 04, 2016
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We report in situ cell surface modification for surface-enhanced Raman analysis of cell membrane. Our method can produce silver metals on cell membrane via the formation of complex of silver ions and membrane proteins, followed by reduction of silver ion. Formed silver metals generated surface-enhanced Raman signal and enabled the high-sensitive detection of Raman signal from the cell membrane. Thus, our method is expected to be applied for cell membrane analysis.
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Na Yin, Ke Wang, Zongqun Li
2016 Volume 45 Issue 6 Pages
625-627
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 18, 2016
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Metal–organic frameworks (MOFs) first have been used for the removal of toxic Pb(II). Nanocrystalline Zr-MOFs were synthesized through a rapid microwave-promoted method within 3 min for the first time, having a sphere-like appearance and an average size of 100 nm. The XRD patterns were UiO-66-NH
2. The adsorption capacities were remarkably high (135.0 mg g
−1). The pseudo-second-order kinetic model can well describe the adsorption (
R2 = 0.95356 for yellow MOFs). Zr-MOFs are therefore good adsorbents for the removal of Pb(II).
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Koharu Aikawa, Toru Matsui, Kenji Morihashi
2016 Volume 45 Issue 6 Pages
628-630
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 18, 2016
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Supplementary material
We estimated the rate constant of a model consisting of an oligo(
para-phenylenevinylene) (OPV) dimer in order to investigate the charge recombination of poly(
para-phenylenevinylene) (PPV) using constrained density functional theory (CDFT). It was found that a larger conjugation length and/or the presence of an electron-donating side chain increases the rate constant of PPV derivatives.
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Hironori Izawa, Yuka Miyazaki, Shinsuke Ifuku, Minoru Morimoto, Hiroyu ...
2016 Volume 45 Issue 6 Pages
631-633
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 18, 2016
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Supplementary material
Fully biobased nanoparticles harnessed from the lignification of wood are introduced in this paper. A phenolic oligomer is produced by the horseradish peroxidase-catalyzed polymerization of ferulic acid, which is a lignin precursor. The oligomer spontaneously forms monodispersed nanoparticles (79.7 ± 18.4 nm) via self-assembly in the reaction solution.
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Shun Goda, Masanori Nikai, Mikinao Ito, Daisuke Hashizume, Kohei Tamao ...
2016 Volume 45 Issue 6 Pages
634-636
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 30, 2016
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Supplementary material
Monomeric diaryliron(II) complexes, Fe(Rind)
2, have been obtained by introducing fused-ring bulky “Rind” groups. For Fe(Eind)
2, a significant orbital contribution of the Fe(II) ion due to the linear two-coordination has been determined by the highly effective magnetic moment (μ
eff = 5.82 μ
B) and the extraordinarily large internal hyperfine field (
Hn = ca. 140 T) in the Mössbauer spectrum. Variable-frequency out-of-phase ac susceptibility data demonstrate an effective spin-reversal barrier of
Ueff = 51.2(7) cm
−1 associated with the single-ion magnet behavior.
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Yuki Fujimoto, Norifumi Yamamoto, Kazuki Furukawa, Hiroshi Sekiya
2016 Volume 45 Issue 6 Pages
637-639
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 30, 2016
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Supplementary material
1-Cyano-
trans-1,2-bis(4′-methylbiphenyl)ethylene (CN-MBE) is a prototypical molecule that exhibits aggregation-induced emission (AIE); however, there is very little information about its molecular structure. Viscosity-dependence of fluorescence excitation and fluorescence spectra, fluorescence quantum yield, and fluorescence lifetime were recorded for CN-MBE in an EtOH/glycerin mixed solution. The experimental results indicate that S
1→S
0 fluorescence arises from the twisted and (near) planar structures.
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Yasuhiro Mie, Masiki Ikegami, Yasuo Komatsu
2016 Volume 45 Issue 6 Pages
640-642
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: March 30, 2016
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A nanoporous gold (NPG) structure consisting of pores and ligaments is prepared by anodizing a polycrystalline gold disk electrode for 15 min in 35 mM HCl solution. Smaller/narrower ligaments sizes are obtained compared with that of the reported NPG structures obtained by anodization in higher (>1 M) concentrations of chloride ion. The present NPG structure is highly effective for direct electron transfer between human cytochrome P450 and the electrode.
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Yoshiyuki Nagasawa, Hidetaka Nanao, Osamu Sato, Aritomo Yamaguchi, Mas ...
2016 Volume 45 Issue 6 Pages
643-645
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
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The aromatic hydrogenation of 4-propylphenol to 4-propylcyclohexanone,
cis- and
trans-4-propylcyclohexanols proceeded over a charcoal-supported palladium catalyst (Pd/C) in water–ethanol cosolvent at 573 K without using any external hydrogen gas. The ring hydrogenation activities in water–ethanol cosolvent over Pd/C were higher than those with a conventional method using externally supplied hydrogen gas. Both water and ethanol were indispensable for the ring hydrogenation in the water–ethanol cosolvent at 573 K.
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Takanari Togashi, Shihoko Ojima, Ibuki Sato, Katsuhiko Kanaizuka, Masa ...
2016 Volume 45 Issue 6 Pages
646-648
Published: June 05, 2016
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Supplementary material
High-aspect-ratio Ag nano- and microplates have been produced via an inhomogeneous system, i.e., coordination-polymer fine crystals of silver oxalate, Ag
2(C
2O
4), suspended in an aqueous solution containing poly(vinylpyrrolidone) as a reducing and surface-protecting agent. The Ag plates are nucleated and grown exclusively on side-surfaces along the longitudinal axis (
c axis) of the rod-like Ag
2(C
2O
4) crystals, in which the position and direction of the C
2O
42− are suitably ordered to generate the morphology-controlled Ag plates.
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Shigeki Tashima, Taichi Sawada, Kodai Saito, Tohru Yamada
2016 Volume 45 Issue 6 Pages
649-651
Published: June 05, 2016
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Supplementary material
Microwave irradiation was applied to the enantioselective Conia-ene reaction catalyzed by Cu(OTf)
2 with a chiral amine. Under strictly controlled temperature conditions, microwave irradiation improved the chemical yields without any loss of the enantioselectivities. Consequently, the kinetic rate by the microwave irradiation was 1.15 times higher than that by conventional heating. These observations suggested that the microwave specific effects enhanced the efficiency of the enantioselective Conia-ene reaction.
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Yuta Fujii, Yusaku Suto, Akira Miura, Mikio Higuchi, Kiyoharu Tadanaga
2016 Volume 45 Issue 6 Pages
652-654
Published: June 05, 2016
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An all-solid-state lithium secondary battery using a NiPS
3 electrode and a 80Li
2S·20P
2S
5 glass solid electrolyte was fabricated, and the charge–discharge cycle performance of the corresponding all-solid-state cell was investigated. This all-solid-state cell exhibited a stable reversible capacity of about 80 mA h g
−1 after 30 cycles with a current density of 64 µA cm
−2 at room temperature. This suggests that NiPS
3 has a potential as an electrode active material in all-solid-state lithium secondary batteries using Li
2S-P
2S
5 solid electrolytes.
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Kenichi Sakai, Masahide Sawa, Kazuyuki Nomura, Takeshi Endo, Koji Tsuc ...
2016 Volume 45 Issue 6 Pages
655-657
Published: June 05, 2016
Released on J-STAGE: June 05, 2016
Advance online publication: April 02, 2016
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Supplementary material
pH-sensitive viscoelastic fluids were obtained through the formation of wormlike micelles and hydrogels. These assemblies result from the 1:1 stoichiometric complex formation of acylglutamic acid (C
nGlu) with tertiary alkylamine. The pH-sensitive nature reflects a change in the charge density around the C
nGlu headgroups, controlling the curvature of the molecular assemblies. The longer chain C
nGlu analogues yield the hydrogel in a narrow pH region. This study proposes a unique way to obtain stimulus-responsive viscoelastic fluids by means of gemini-like amphiphiles.
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