-
Toshiaki Yoshioka, Katsuya Sugawara, Tadaaki Mizoguchi, Akitsugu Okuwa ...
2005 Volume 34 Issue 3 Pages
282-283
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
We investigated the influence of the decomposition conditions (temperature: 500, 700, 900 °C, steam concentration: 0, 35, 86 vol %, Ca(OH)
2/PC molar ratio: 0 or 5) on polycarbonate (PC). Without steam and Ca(OH)
2 the liquefaction yield was 57 wt % (low and high boiling products 14, 43 wt %, respectively), the gasification yield 12 wt %, and the carbonization yield 31 wt % at 500 °C. At a steam concentration of 86 vol %, 84 wt % liquids (low and high boiling products 17, 67 wt %, respectively), 1 wt % gases and 15 wt % residues were observed. The amount of low boiling products increased from 17 to 31 wt %, and the amount of high boiling products decreased from 67 to 49 wt % when Ca(OH)
2 was added at a steam concentration 86 vol %. At this time, the yield of phenol in the low boiling fraction increased from 15 to 74 mol % (20 wt % of all products).
View full abstract
-
Li Lin, Wei Lin, Yuexiang Zhu, Biying Zhao, Youchang Xie
2005 Volume 34 Issue 3 Pages
284-285
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
A novel phosphor-doped titania in an anatase phase colored yellow was prepared by a simple modified sol–gel method with hypophosphorous acid as precursor. The as-prepared P-doped titania shows a narrower band gap than pure titania and an absorption tail in the visible range, which results in its effective photocatalytic degradation of 4-chlorophenol under visible-light ( >420 nm) irradiation.
View full abstract
-
Tomoo Mizugaki, Yasuaki Miyauchi, Makoto Murata, Kohki Ebitani, Kiyoto ...
2005 Volume 34 Issue 3 Pages
286-287
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
A Rh phosphine complex was encapsulated within the surface alkylated poly(propylene imine) dendrimers through ionic interactions. The resulting dendrimer complexes functioned as nanoreactors for hydroformylation of olefins. The congested surface of dendrimers with long alkyl chains favored hydroformylation of higher olefins. One-pot three reactions composed of hydroformylation, the Knoevenagel reaction, and hydrogenation proceeded within the dendritic nanoreactor.
View full abstract
-
Chen-I Yang, Hui-Lien Tsai, Gene-Hsiang Lee, Ching-Shuei Wur, Shwu-Fen ...
2005 Volume 34 Issue 3 Pages
288-289
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
The synthesis, X-ray crystal structure and magnetic properties of a new single-molecule magnet [Mn
8Fe
4O
12(O
2CCH
2Cl)
16(H
2O)
4]·2CH
2ClCOOH·2CH
2Cl
2 (
3·2CH
2ClCOOH·2CH
2Cl
2) are reported. Reduced magnetization data of complex
3 indicate an
S = 4 ground state, and the out-of-phase components of AC magnetic susceptibilities have frequency dependent maxima.
View full abstract
-
Ichiro Imae, Yusuke Kawakami
2005 Volume 34 Issue 3 Pages
290-291
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Novel family of molecular glasses based on silicon-containing compounds, α,ω-dimethyloligo(diphenylsilylene)s are synthesized and characterized. Glass-forming properties of these materials tended to have even-odd effect of chain length. The morphology of glassy samples was found to be mainly amorphous with only two-dimensional order of hexagonal packing.
View full abstract
-
Takashi Aridomi, Tatsuya Kawamoto, Asako Igashira-Kamiyama, Takumi Kon ...
2005 Volume 34 Issue 3 Pages
292-293
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
Treatment of the
racemic Δ/Λ-[Co(aet)(en)
2]
2+ (aet = 2-aminoethanethiolate) with Cd
II in the presence of excess Cl
− in water gave ΔΛ-[CdCl
4{Co(aet)(en)
2}
2]
2+ (ΔΛ-[
1]
2+), while the corresponding reaction using the optically active Λ-[Co(aet)(en)
2]
2+ produced ΛΛ-[Cd
2Cl
7{Co(aet)(en)
2}
2]
+ (ΛΛ-[
2]
+). The crystal structures of these complexes were determined by X-ray crystallography.
View full abstract
-
Shun-ichi Tamaru, Satoshi Yamaguchi, Itaru Hamachi
2005 Volume 34 Issue 3 Pages
294-295
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
In an agarose hydrogel, triton X-100 formed a micelle with the original critical micelle concentration. The micelle-mixed agarose gel was successfully applied to fabricate a semi-wet protein/peptide array for monitoring enzyme activities and the enzyme inhibitor potency in a high throughput manner.
View full abstract
-
Keizo Nakagawa, Yusuke Murata, Masahiro Kishida, Motonari Adachi
2005 Volume 34 Issue 3 Pages
296-297
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Crystallized CeO
2–TiO
2 composite nanostructures were prepared by surfactant-assisted method using mixed solution of alkoxides at 353 K. The morphology and crystalline structure of CeO
2–TiO
2 composite were varied with changing the mole ratio of cerium
n-butoxide/tetraisopropyl orthotitanate. These nanostructured materials after calcinations showed reaction activity to oxidize I
− to I
2 owing to Lewis acid sites without irradiation of light.
View full abstract
-
Hao Wang, Tohru Sekino, Koichi Niihara
2005 Volume 34 Issue 3 Pages
298-299
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Magnetic composite nanoparticles containing iron and mullite were prepared by reduction of sol–gel-made mullite–iron oxide solid solution. The magnetic properties of nanocomposite suggest that a part of the iron particle exists in the superparamagnetic state. TEM observation shows that metal nanoparticles have an intragranular distribution with iron embedded in mullite grains.
View full abstract
-
Takashi Komiyama, Satoshi Igarashi, Yoshimasa Hoshino, Yasuhiko Yukawa
2005 Volume 34 Issue 3 Pages
300-301
Published: 2005
Released on J-STAGE: March 05, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
Clusters, Ba{Co(prolinato)
2}
6 and La{Co(prolinato)
2}
6, which are bridged by prolinato ligands, were crystallized as [M{Co(prolinato)
2}
6](ClO
4)
4. The Ba{Co(pro)
2}
6 cluster has two Co
III and four Co
II and the La{Co(pro)
2}
6 cluster has one Co
III and five Co
II; i.e., the mixed-valence state of the cobalt cluster is different according to the oxidation number of the central ion. The both mixed-valence clusters change into divalent hexacobalt clusters by electrochemical reduction.
View full abstract
-
Baokang Jin, Shounian Ding, Kiyokazu Kametani, Toshio Nakamura
2005 Volume 34 Issue 3 Pages
302-303
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
A simple method is described for fabricating gold nanoparticle-modified electrode (NP/SAM/gold), on which the density of NPs on the interface can be controlled by altering SH-terminated thiol abundance in the SAM.
View full abstract
-
Hisayoshi Shiozaki, Yotaro Inoue, Yoshiaki Sakurai
2005 Volume 34 Issue 3 Pages
304-305
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
A diaminodicyanopyrazine derivative, having bulky substituents, was designed and synthesized. The synthesized dye exhibited an intense photoluminescence in the solid state. An electroluminescent device was prepared by using the dye. The dye exhibited polymorphism. Red and yellow single crystals of the dye were prepared by using a gas-phase sublimation growth procedure. The spectral shift due to the polymorphism is also discussed, and a candidate dye for red colored electroluminescent devices is proposed.
View full abstract
-
Ken-ichi Kanbara, Kazumi Tsureishi, Hiroki Akutsu, Jun-ichi Yamada, Sh ...
2005 Volume 34 Issue 3 Pages
306-307
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
Organic crystals of the TCNQ or TCNQF
4 radical anion salts derived from 2,4,6-triphenylpyridinium carrying TEMPO radical were obtained as a couple of different forms and their magnetic properties were found to vary markedly depending on the forms.
View full abstract
-
Atsushi Ikeda, Akinori Ejima, Koji Nishiguchi, Jun-ichi Kikuchi, Takah ...
2005 Volume 34 Issue 3 Pages
308-309
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
A new water-soluble carbohydrate-containing “nonionic” homooxacalix[3]arene (
2) was synthesized.
2 could solubilize [60]fullerene (C
60) into water and the resultant complex acted as an efficient DNA photocleaving reagent.
View full abstract
-
Atsuya Momotake, Tatsuo Arai
2005 Volume 34 Issue 3 Pages
310-311
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Azobenzene dendrimer
E-2, having water-soluble dendrons at the
ortho-position in azobenzene, showed novel solvatochromism with changing the solvent ratio of water/EtOH which is based on the intramolecular hydrophobic interaction due to poly-aryl(ether) dendrons. The thermodynamic parameters for
Z-to-
E thermal isomerization of
2 also greatly depended on the water/EtOH ratio.
View full abstract
-
Xue-E Wu, Li Ma, Meng-Xian Ding, Lian-Xun Gao
2005 Volume 34 Issue 3 Pages
312-313
Published: 2005
Released on J-STAGE: January 29, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
A novel imidazolium ionic liquid-grafted 2,2′-bipyridine ligand has been prepared and successfully employed in the copper-catalyzed selective oxidation of alcohols to the corresponding carbonyl compounds in ionic liquid [bmim][PF
6] under mild conditions, and the catalytic ionic liquid solution can be recovered and reused without significant loss of catalytic efficiency.
View full abstract
-
Pandurangan Arumugam, Ganesan Karthikeyan, Raji Atchudan, D. Muralidha ...
2005 Volume 34 Issue 3 Pages
314-315
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
A variety of polysubstituted quinolines have been synthesized under solvent free condition by using tin(II) chloride·dihydrate. The reaction proceeds smoothly at room temperature in short reaction time. The yields and purity are excellent.
View full abstract
-
Mitsuo Sato, Yasuhiko Gunji, Taketo Ikeno, Tohru Yamada
2005 Volume 34 Issue 3 Pages
316-317
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
In the presence of a catalytic amount of bis(dipivaloylmethanato)manganese(III) complex, the α,β-unsaturated carboxylates with camphorsultam as a chiral auxiliary reacted with phenylsilane and dialkyl azodicarboxylates to afford the corresponding α-hydrazinated carboxylates with high stereoselectivities.
View full abstract
-
Eiki Takahashi, Hidehiko Fujisawa, Toshiharu Yanai, Teruaki Mukaiyama
2005 Volume 34 Issue 3 Pages
318-319
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Lewis base-catalyzed Strecker-type reaction between trimethylsilyl cyanide and
N-tosylimines proceeded smoothly in dry DMF or water-containing DMF and the corresponding α-amino compounds were obtained in good to high yields.
View full abstract
-
Kahori Ohga, Yoshinori Takashima, Hirokazu Takahashi, Masahiko Miyauch ...
2005 Volume 34 Issue 3 Pages
320-321
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Novel supramolecular polymers have been prepared from a β-cyclodextrin dimer and ditopic guest dimers having adamantyl groups. A guest dimer (
C0) with a 4,4′-bipyridinium group as a stiff spacer between adamantyl groups gave linear supramolecular polymers with high molecular weight, although guest dimer (
C2) with flexible methylene spacers gave cyclic supramolecular polymers in aqueous solutions.
View full abstract
-
Hideyuki Shinmori, Fumiaki Kodaira, Seiichi Matsugo, Shigeki Kawabata, ...
2005 Volume 34 Issue 3 Pages
322-323
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Diazaporphyrin derivatives (H
2DAP and ZnDAP) are shown to possess photosensitizing ability of the singlet oxygen generation in toluene with quantum yields of 0.92 and 0.84 for H
2DAP and ZnDAP, respectively.
View full abstract
-
Mitsuhiro Kanakubo, Tatsuya Umecky, Takafumi Aizawa, Yoshiaki Kurata
2005 Volume 34 Issue 3 Pages
324-325
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
The electric conductivities and self-diffusion coefficients in dried and water-saturated 1-butyl-3-methylimidazolium hexafluorophosphate, [BMIM][PF
6], were measured at 25 and 40 °C. Although the presence of water can remarkably induce acceleration of transport properties in the ionic liquid, the ionic dissociation remains almost unchanged.
View full abstract
-
Baojun Yang, Hanmei Hu, Yucheng Wu, Tao Luo, Xiaogang Yang, Yitai Qian
2005 Volume 34 Issue 3 Pages
326-327
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
δ-Ni
2Si nanowires have been synthesized via a co-reduction–silicification route, using anhydrous NiCl
2 and SiCl
4 as nickel source and silicon source, respectively, and metallic Na as reductant in an autoclave at 600 °C for 16 h. Transmission electron microscopy (TEM) observations show that the diameters of nanowires ranged in 10–100 nm and lengths up to several tens micrometers. The possible formation mechanism is discussed.
View full abstract
-
Takeo Yamada, Haoshen Zhou, Itaru Honma, Yuko Ueno, Tsutomu Horiuchi, ...
2005 Volume 34 Issue 3 Pages
328-329
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Mesoporous silica SBA-15 and SBA-16 films can be successfully prepared on a substrate by a simple method involving a rapid heating process, which is controlled by a voltage applied to a heating electrode on the substrate. This advantageous method has considerable potential for electronic device fabrication processes.
View full abstract
-
Jan Franz, Sigrid D. Peyerimhoff, Michael Hanrath, Oh-Hoon Kwon, Du-Je ...
2005 Volume 34 Issue 3 Pages
330-331
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
The electronic spectrum of 7-hydroxyquinoline has been studied by using ab initio Multi-State Multi-Reference Møller-Plesset Second-Order Perturbation Theory (MSMRMP2). The energy range up to 6.5 eV is taken into consideration. The lowest π–π
* transition is calculated to have an energy of 3.65 eV in good agreement with experimental data. Several other π–π
* transitions are predicted to have excitation energies of 4.93, 5.20, 5.47, and 6.08 eV. Excitations out of the highest occupied σ orbital into the lowest unoccupied π
* orbitals are computed to occur at 5.28 and 6.44 eV. The π–σ
* transition is predicted at 5.87 eV. The σ
* orbital involved is identified as the Rydberg 3s orbital having antibonding character along the OH bond.
View full abstract
-
Taka-aki Okamura, Taku Iwamura, Akihiro Ito, Maki Kaneko, Minoru Yamag ...
2005 Volume 34 Issue 3 Pages
332-333
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
A novel N-terminal-labeling reagent [(tpy)Ru
II(tpyCONSu)]
2+ ( = <Ru>-COONSu) provides an efficient and effective N-terminal sequencing of peptides and proteins in MALDI-TOF-MS/MS (PSD) analysis, which shows a
n fragments predominantly without any C-terminal-fragment ions.
View full abstract
-
Yu Tsutsumi, Hiroshi Nakanishi, Kaori Chiba-Kamoshida
2005 Volume 34 Issue 3 Pages
334-335
Published: 2005
Released on J-STAGE: March 05, 2005
JOURNAL
RESTRICTED ACCESS
In
13C NMR spectra, four signals of two trans and two cis conformers in caprylolactam were found in a mixed solvent of water and methanol. NMR line broadenings and coalescent phenomena in two conformers occurred at higher temperatures, giving high activation free energy (Δ
G‡) for the isomerizations between two trans and cis conformers. Δ
G‡ are greatly influenced by the mixed ratio between water and methanol.
View full abstract
-
Elodie Barraud, Florence Bosc, Nicolas Keller, Valérie Keller
2005 Volume 34 Issue 3 Pages
336-337
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
A regenerable, halide-free, sulfate-promoted titania photocatalyst was developed for the high-efficiency, room temperature gas phase photodegradation of toluene at higher than trace concentrations.
View full abstract
-
Yoshifumi Kimura, Masanori Fukuda, Tomotsumi Fujisawa, Masahide Terazi ...
2005 Volume 34 Issue 3 Pages
338-339
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Raman spectrum of diphenylcyclopropenone has been measured in various liquids including room temperature ionic liquids. We found a good linear correlation between the solvent acceptor number and the vibrational frequency of the C=C and C=O stretching mode. From the correlation, we have successfully determined acceptor number of several room temperature ionic liquids.
View full abstract
-
J. S. Yadav, B. V. S. Reddy, G. Satheesh, K. Raghavender Rao
2005 Volume 34 Issue 3 Pages
340-341
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Azides are readily converted into their corresponding amines using a catalytic amount of Co
2(CO)
8 under mild conditions. The method is highly chemoselective and compatible with a variety of functionalities such as halides, esters, acids, ethers, nitro, cyano and olefinic double bonds present in the molecule.
View full abstract
-
Kenji Yasui, Yasuhisa Sakamoto, Kazuyuki Nishio, Hideki Masuda
2005 Volume 34 Issue 3 Pages
342-343
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Anodic porous alumina mask with ideally arranged holes was formed on InP single crystals. This process has advantageous in the achievement of nanofabrication with uniformity and reproducibility due to the mask being formed with sufficient adhesion on the InP. The masks formed by this process, was confirmed to applicable for the dry-process mask.
View full abstract
-
Ashraful Islam, Firoz A. Chowdhury, Yasuo Chiba, Ryoichi Komiya, Nobuh ...
2005 Volume 34 Issue 3 Pages
344-345
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
We have developed a new β-diketonato Ru(II) complex, Ru(4,4′,4″-tricarboxy-2,2′:6′,2″-terpyridine) [4,4,4-trifluoro-1-(4-fluorophenyl)butane-1,3-dionato](NCS)[(C
4H
9)
4N]
2 (
1) which shows very efficient panchromatic sensitization of nanocrystalline TiO
2 solar cell over the whole visible range extending into the near IR region (ca. 950 nm). A solar energy conversion efficiency of 8.9% was attained under standard AM 1.5 irradiation (100 mW cm
−2) with a short-circuit photocurrent density of 20.4 mA cm
−2, an open-circuit photovoltage of 0.65 V, and a fill factor of 0.67.
View full abstract
-
Aritomo Yamaguchi, Masahito Yokoyama, Taku Ogura, Kenichi Oyaizu, Mako ...
2005 Volume 34 Issue 3 Pages
346-347
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
We have prepared copper-containing mesoporous silica (Cu/MS) using solubilization of copper oleate in nonionic surfactant aggregates. The amount of copper loading in calcined Cu/MS corresponded to the amount of copper oleate solubilized in surfactant aggregates of the mixed solution.
View full abstract
-
Daisaku Inoue, Yasuhiko Sakakibara, Masahiro Suzuki, Hirofusa Shirai, ...
2005 Volume 34 Issue 3 Pages
348-349
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
1-Acylamino-3,5-bis(2-ethylhexylaminocarbonyl)benzene derived from dimethyl 5-aminoisophthalate formed a nano-scaled superstructure in organic solvents and acted as gelators or thickeners.
View full abstract
-
Tomikazu Kawano, Masataka Nakanishi, Takahiro Kato, Ikuo Ueda
2005 Volume 34 Issue 3 Pages
350-351
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
Triple-stranded helicates possessing polyether side chains have been prepared from the reaction of oligo(ethynylpyridines) with copper(I) ions. Ring-closing metathesis of the helicates by using Grubbs’ catalyst has led to the formation of pyridine-containing macrocyclic compounds.
View full abstract
-
Hideyuki Sugimura, Yuki Uchida
2005 Volume 34 Issue 3 Pages
352-353
Published: 2005
Released on J-STAGE: February 05, 2005
JOURNAL
RESTRICTED ACCESS
The total synthesis of (±)-arohynapene B, an anticoccidial agent isolated from the fermentation broth of a fungal strain, has been achieved. The tetrahydronaphthalene ring was constructed by the Diels–Alder reaction between dimethyl acetylenedicarboxylate and the 1-(β-acetoxyvinyl)cyclohexene derivative, which was prepared from 3,5-dimethylcyclohexanone via the Ag
+-catalyzed rearrangement of the propargylic acetate derivative. The introduction of the dienylcarboxylic acid side chain was accomplished by the Horner–Wadsworth–Emmons olefination repeatedly utilizing ethyl diethylphosphonoacetate. Finally, careful removal of the protecting groups led to (±)-arohynapene B.
View full abstract
-
Jun Yang, Jim Yang Lee, Heng-Phon Too, Gan-Moog Chow, Leong M. Gan
2005 Volume 34 Issue 3 Pages
354-355
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
This report describes a Triton X-100-assisted method to assemble small Au nanoparticles by DNA hybridization. The non-specific adsorption of oligonucleotides, which is most prevalent on small Au nanoparticle surface and interferes with the hybridization of complementary sequences, is overcome by shielding the Au nanoparticle with a Triton X-100 layer. Amine-modified oligonucleotides, but not thiol-modified oligonucleotides, are able to penetrate the X-100 shell to enable the hybridization of complementary DNA sequences.
View full abstract
-
So Ijichi, Seizo Tamagaki
2005 Volume 34 Issue 3 Pages
356-357
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
A series of 18β-glycyrrhetinic acid (GA)-based, sweet tasting compounds has been prepared, where anionic NHCO(CH
2)
nCO
2K side chains are attached to the 3β-C position of the GA skeleton through an amide linkage. As compared with the corresponding ester-linking compounds, these amido-linking ones, except that of
n = 0, elicit 13 to 25 times increase in sweetness. The sweetness enhancement is due probably to the proton donation capability of the amido NH group which would render the binding of these compounds to the taste bud cell receptor advantageous.
View full abstract
-
Hizuru Nakajima, Satomi Ishino, Hironori Masuda, Takuya Shimosaka, Tat ...
2005 Volume 34 Issue 3 Pages
358-359
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
A novel strategy for patterning several kinds of proteins in a specific position of a microchannel is presented. Horseradish peroxidase (HRP) and alkaline phosphatase (ALP) are covalently immobilized on a polystyrene microchannel surface through a photoreactive crosslinker with an azide group at one end and a succinimide group at the other by UV irradiation. The activities of HRP and ALP are evaluated using Amplex Red and Fluorescein diphosphate, respectively. The fluorescence has been observed only at the enzyme-immobilized position.
View full abstract
-
Yusuke Ide, Makoto Ogawa
2005 Volume 34 Issue 3 Pages
360-361
Published: 2005
Released on J-STAGE: March 05, 2005
JOURNAL
RESTRICTED ACCESS
An organically modified layered titanate, prepared by the reaction of K
0.8Ti
1.73Li
0.27O
4 with
n-octadecyltrimethoxysilane, was dispersed in benzene, chloroform, toluene,
n-decane,
n-octanol, and ethyl acetate to form colloidal suspensions.
View full abstract
-
Yu Chikamoto, Masakazu Hirotsu, Tatsuya Kawamoto, Takumi Konno
2005 Volume 34 Issue 3 Pages
362-363
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
The methylation of two terminal nonbridging thiolato groups in
syn-[Pd{Co(aet)
3}
2]
2+ (aet = 2-aminoethanethiolate) was accompanied by the syn-to-anti isomerization, while the benzylation proceeded with retention of the syn configuration. The molecular structures of two alkylated Co
IIIPd
IICo
III complexes were determined by X-ray crystallography.
View full abstract
-
Xiu-Feng Xu, Jong Yeol Jeon, Mi Hwa Choi, Hee Young Kim, Won Choon Cho ...
2005 Volume 34 Issue 3 Pages
364-365
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
γ-Al
2O
3 is one of the most active catalysts for hydrolytic decomposition of PFCs but it has been suffered from deactivation. The main reason for the deactivation was the transformation of catalytically active γ-phase into an inactive α-phase by the HF produced during the decomposition of PFCs. To prohibit the phase transformation, structure modifiers such as ZnAl
2O
4 and AlPO
4 were strongly required, which resulted in a remarkable catalyst durability.
View full abstract
-
Dan Zhao, Weiping Qin, Jisen Zhang, Gejihu De, Jishuang Zhang
2005 Volume 34 Issue 3 Pages
366-367
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
Europium complex nanoclusters are introduced into monodisperse colloidal silica spheres by a modified Stöber method. Transmission electron microscopy measurements confirm that the hybrid spheres possess smooth surface and core-shell structure. The hybrid spheres display strong characteristic luminescence of the Eu
3+ ions. Furthermore they exhibit an improved thermal stability compared with the pure rare earth (RE) complex.
View full abstract
-
Yan Zhang, Zhang-Hua Zeng, Yong-Yong Liu, Xue-Xin Cheng, Xue-Song Wang ...
2005 Volume 34 Issue 3 Pages
368-369
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
Photochemically generated singlet oxygen adds selectively to C
20–C
22 rather than C
5–C
6 double bond of pseudodiosgenin diacetate
1 to give diosone
4, an important intermediate for preparation of many steroidal drugs, and ene product
3 at room temperature.
3 was separated and characterized by
1H and
13C NMR as well as IR. When pyridine and acetic anhydride were presented, the Criegee rearrangement of
3 can yield
4, as a result, leading to a high collection yield (80% in acetonitrile) of
4.
View full abstract
-
Yutaka Kadota, Taiki Ibuki, Koichi Goto, Yoko Matsumoto, Ryuichi Ueoka
2005 Volume 34 Issue 3 Pages
370-371
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
A remarkably high inhibitory effect of extracts from barley-koji miso with ethanol encapsulated in hybrid liposomes on the growth of human stomach tumor cells in vitro was obtained. Furthermore, it is suggested that ethyl linolenate should be an important antitumor agent among extracts from barley-koji miso.
View full abstract
-
Yasuyuki Ogawa, Kiichi Kuroda, Teruaki Mukaiyama
2005 Volume 34 Issue 3 Pages
372-373
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
δ-Amino-β′-hydroxy-β,γ-unsaturated esters were stereoselectively synthesized by the aldol reaction of aldehydes with samarium enolates generated by aziridine-fragmentation of γ,δ-aziridinyl-α,β-unsaturated esters using two moles of samarium(II) iodide.
View full abstract
-
Jingze Li, Yoshihiro Nakato, Kei Murakoshi
2005 Volume 34 Issue 3 Pages
374-375
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
A novel nanostructure, heterogeneous Pd–Au nanocontact showing conductance quantization, was fabricated via selective electrochemical deposition of Pd at a gap of two sustainable thin Au wires in solution. The stability of Pd monatomic contact increased when the potential of the electrode was kept at negative potential. Contribution of the adsorbed hydrogen on Pd–Au contact was considered as the origin of the improved stability.
View full abstract
-
Hirofumi Kikuchi, Norio Tsubokawa, Takeshi Endo
2005 Volume 34 Issue 3 Pages
376-377
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
Supplementary material
This paper deals with the cationic ring-opening polymerization of γ-thiobutyrolactone (
2) and γ-thionobutyrolactone (
3). The ring-opening polymerization of
3 was carried out in bulk at 100 °C for 2 h by various cationic initiators. Scandium trifuoromethane-sulfonate induced the polymerization of
3, which did not afford polythionoester but polythioester selectively. On the other hand, the polymerization of
2 did not proceed with various cationic initiators under the similar conditions.
View full abstract
-
Shinzi Ogasawara, Kenzo Fujimoto
2005 Volume 34 Issue 3 Pages
378-379
Published: 2005
Released on J-STAGE: February 12, 2005
JOURNAL
RESTRICTED ACCESS
The photochemical DNA computing via 5-carboxyvinyl-deoxyuridine (
cvU) in anchor oligodeoxynucleotides (ODNs) in order to tether the multiple “DNA words” was demonstrated. A new MARK and UNMARK operation based on the
cvU mediated reversible DNA photoligation has been developed for multiple-words DNA computing. The utility of this operation for DNA computing was demonstrated by solving a satisfiability problem (SAT problem) in which information was encoded in three tandem words.
View full abstract
