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Xiao M, Hoshiya N, Fujiki K, Honma T, Tamenori Y, Shuto S, Fujioka H, Arisawa M. Development of a Sulfur-Modified Glass-Supported Pd Nanoparticle Catalyst for Suzuki-Miyaura Coupling. Chem Pharm Bull (Tokyo) 2016; 64:1154-60. [PMID: 27477655 DOI: 10.1248/cpb.c16-00261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A safe, facile and low-leaching (up to 0.17 ppm) sulfur-modified glass-supported palladium nanoparticle catalyst has been developed for the Suzuki-Miyaura coupling of aryl halides with aryl boronic acids. Most notably, this catalyst was highly recyclable and could be used up to 10 times without any discernible decrease in its activity.
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Hoshiya N, Fujiki K, Taniguchi T, Honma T, Tamenori Y, Xiao M, Saito N, Yokoyama M, Ishii A, Fujioka H, Shuto S, Sato Y, Arisawa M. Self‐Assembled Multilayer‐Stabilized Nickel Nanoparticle Catalyst for Ligand‐Free Cross‐Coupling Reactions:
in situ
Metal Nanoparticle and Nanospace Simultaneous Organization. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Takaya H, Nakajima S, Nakagawa N, Isozaki K, Iwamoto T, Imayoshi R, Gower NJ, Adak L, Hatakeyama T, Honma T, Takagaki M, Sunada Y, Nagashima H, Hashizume D, Takahashi O, Nakamura M. Investigation of Organoiron Catalysis in Kumada–Tamao–Corriu-Type Cross-Coupling Reaction Assisted by Solution-Phase X-ray Absorption Spectroscopy. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20140376] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ishida T, Aikawa S, Mise Y, Akebi R, Hamasaki A, Honma T, Ohashi H, Tsuji T, Yamamoto Y, Miyasaka M, Yokoyama T, Tokunaga M. Direct C-H arene homocoupling over gold nanoparticles supported on metal oxides. CHEMSUSCHEM 2015; 8:695-701. [PMID: 25583080 DOI: 10.1002/cssc.201402822] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 11/19/2014] [Indexed: 06/04/2023]
Abstract
The direct CH/CH bond coupling of dimethyl phthalate was performed successfully over supported gold nanoparticle catalysts. Gold on reducible metal oxides, such as Co3 O4 , and on inert oxides that have an oxygen-releasing capacity, such as ZrO2 , showed the highest catalytic activity for the production of biphenyl tetracarboxylate using O2 as the sole oxidant. Supported Pd(OH)2 also catalyzed the reaction, but the catalytic activity was inferior to that of gold. Moreover, the gold catalysts exhibited excellent regioselectivity for the synthesis of valuable 3,3',4,4'-tetrasubstituted biphenyls by coupling with each other at the 4-position without the need for additional ligands. Gold catalysts also promoted the oxidative homocoupling of arenes including o-xylene to give symmetrical biaryls with high regioselectivity. X-ray absorption fine structure measurements revealed that the catalytically active species was Au(0) and that the lattice oxygen of Co3 O4 played an important role in the gold-catalyzed oxidative coupling. The results of the kinetic studies were consistent with an electrophilic aromatic substitution pathway. Regioselectivity is not controlled by directing groups or the electronic character of the substituents but by steric hindrance, which suggests that gold nanoparticles not only catalyze the oxidative coupling but also act as bulky ligands to control the regioselectivity.
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Ikeda Y, Yasuda Y, Ohashi T, Yokohama H, Minoda S, Kobayashi H, Honma T. Dinuclear Bridging Bidentate Zinc/Stearate Complex in Sulfur Cross-Linking of Rubber. Macromolecules 2015. [DOI: 10.1021/ma502063m] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Arisawa M, Al-Amin M, Honma T, Tamenori Y, Arai S, Hoshiya N, Sato T, Yokoyama M, Ishii A, Takeguchi M, Miyazaki T, Takeuchi M, Maruko T, Shuto S. Formation of self-assembled multi-layer stable palladium nanoparticles for ligand-free coupling reactions. RSC Adv 2015. [DOI: 10.1039/c4ra11215f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
SAPD works for ligand-free Buchwald–Hartwig reaction and Suzuki–Miyaura coupling with low-leaching (<1 ppm) and high recyclability (>10 times).
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Zhang Z, Hashiguchi T, Ishida T, Hamasaki A, Honma T, Ohashi H, Yokoyama T, Tokunaga M. Aerobic oxidation of cyclohexanones to phenols and aryl ethers over supported Pd catalysts. Org Chem Front 2015. [DOI: 10.1039/c4qo00354c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
ZrO2 supported palladium catalysts promoted the aerobic oxidation of cyclohexanones to give phenols and aryl ethers.
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Takahashi Y, Kondo K, Miyaji A, Watanabe Y, Fan Q, Honma T, Tanaka K. Recovery and separation of rare Earth elements using salmon milt. PLoS One 2014; 9:e114858. [PMID: 25490035 PMCID: PMC4260943 DOI: 10.1371/journal.pone.0114858] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 11/14/2014] [Indexed: 11/19/2022] Open
Abstract
Recycling rare earth elements (REEs) used in advanced materials such as Nd magnets is important for the efficient use of REE resources when the supply of several REEs is limited. In this work, the feasibility of using salmon milt for REE recovery and separation was examined, along with the identification of the binding site of REEs in salmon milt. Results showed that (i) salmon milt has a sufficiently high affinity to adsorb REEs and (ii) the adsorption capacity of the milt is 1.04 mEq/g, which is comparable with that of commercial cation exchange resin. Heavier REEs have higher affinity for milt. A comparison of stability constants and adsorption patterns of REEs discussed in the literature suggests that the phosphate is responsible for the adsorption of REE in milt. The results were supported by dysprosium (Dy) and lutetium (Lu) LIII-edge extended x-ray absorption fine structure (EXAFS) spectroscopy. The REE-P shell was identified for the second neighboring atom, which shows the importance of the phosphate site as REE binding sites. The comparison of REE adsorption pattern and EXAFS results between the milt system and other adsorbent systems (cellulose phosphate, Ln-resin, bacteria, and DNA-filter hybrid) revealed that the coordination number of phosphate is correlated with the slope of the REE pattern. The separation column loaded with milt was tested to separate REE for the practical use of salmon milt for the recovery and separation of REE. However, water did not flow through the column possibly because of the hydrophobicity of the milt. Thus, sequential adsorption-desorption approach using a batch-type method was applied for the separation of REE. As an example of the practical applications of REE separation, Nd and Fe(III) were successfully separated from a synthetic solution of Nd magnet waste by a batch-type method using salmon milt.
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Ishida T, Onuma Y, Kinjo K, Hamasaki A, Ohashi H, Honma T, Akita T, Yokoyama T, Tokunaga M, Haruta M. Preparation of microporous polymer-encapsulated Pd nanoparticles and their catalytic performance for hydrogenation and oxidation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ishida T, Aimoto J, Hamasaki A, Ohashi H, Honma T, Yokoyama T, Sakata K, Okumura M, Tokunaga M. Formation of Gold Clusters on La–Ni Mixed Oxides and Its Catalytic Performance for Isomerization of Allylic Alcohols to Saturated Aldehydes. CHEM LETT 2014. [DOI: 10.1246/cl.140369] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ishikawa T, Kubota T, Abe S, Watanabe Y, Sugano T, Inoue R, Iwanaga A, Seki K, Honma T, Yoshida T. Hepatic arterial infusion chemotherapy with cisplatin before radical local treatment of early hepatocellular carcinoma (JIS score 0/1) improves survival. Ann Oncol 2014; 25:1379-1384. [PMID: 24737779 DOI: 10.1093/annonc/mdu155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND It has not yet been determined whether hepatic arterial infusion (HAI) chemotherapy improves survival in patients with early hepatocellular carcinoma (HCC). We evaluated the effectiveness of HAI with high-concentration cisplatin (DDP-H) for the treatment of HCC by comparing outcomes between patients who received HAI with DDP-H before radical local treatment of early-stage HCC [Japan Integrated Staging (JIS) score 0/1] and patients who did not receive HAI chemotherapy. PATIENTS AND METHODS Survival was analyzed in 114 patients with early-stage HCC who underwent radical local treatment. The patients were divided into two groups: a HAI group (n = 79) who received DDP-H infusion into the whole liver via the proper hepatic artery, and a non-HAI group (n = 35) who did not receive HAI chemotherapy. RESULTS The cumulative survival rates at 1, 3, and 5 years were 77.4%, 69.2%, and 55.3% in the non-HAI group and 97.4%, 87.0%, and 84.4% in the HAI group, respectively. Survival time prolonged significantly in the HAI group compared with the non-HAI group (log-rank test: P = 0.023; generalized Wilcoxon test: P = 0.012) Multivariate analysis using the Cox proportional hazards model identified HAI with DDP-H as the most important factor affecting survival. CONCLUSIONS Whole-liver HAI with DDP-H before radical local treatment can improve the prognosis of patients with early-stage HCC.
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Kashiwabara T, Toda R, Fujinaga K, Honma T, Takahashi Y, Kato Y. Determination of Host Phase of Lanthanum in Deep-sea REY-rich Mud by XAFS and µ-XRF Using High-energy Synchrotron Radiation. CHEM LETT 2014. [DOI: 10.1246/cl.130853] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hojo S, Katagiri K, Nakao M, Sugiura A, Muramatsu M, Noda A, Okada T, Takahashi Y, Komiyama A, Honma T, Noda K. Status of a compact electron cyclotron resonance ion source for National Institute of Radiological Sciences-930 cyclotron. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02A959. [PMID: 24593538 DOI: 10.1063/1.4862062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The Kei-source is a compact electron cyclotron resonance ion source using only permanent magnets and a frequency of 10 GHz. It was developed at the National Institute of Radiological Sciences (NIRS) for producing C(4+) ions oriented for high-energy carbon therapy. It has also been used as an ion source for the NIRS-930 cyclotron. Its microwave band region for the traveling-wave-tube amplifier and maximum output power are 8-10 GHz and 350 W, respectively. Since 2006, it has provided various ion beams such as proton, deuteron, carbon, oxygen, and neon with sufficient intensity (200 μA for proton and deuteron, 50 μA for C(4+), for example) and good stability for radioisotope production, tests of radiation damage, and basic research experiments. Its horizontal and vertical emittances were measured using a screen monitor and waist-scan. The present paper reports the current status of the Kei-source.
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Ishikawa T, Kubota T, Hirose K, Abe H, Nagashima A, Seki K, Honma T, Yoshida T, Ishihara N. BTR May Be Useful Markers for Aggressive Therapy for Primary Hepatic Neuroendocrine Case with Jaundice. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Al-Amin M, Arai S, Hoshiya N, Honma T, Tamenori Y, Sato T, Yokoyama M, Ishii A, Takeuchi M, Maruko T, Shuto S, Arisawa M. Development of Second Generation Gold-Supported Palladium Material with Low-Leaching and Recyclable Characteristics in Aromatic Amination. J Org Chem 2013; 78:7575-81. [DOI: 10.1021/jo4011415] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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66
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Balogun EO, Inaoka DK, Shiba T, Kido Y, Nara T, Aoki T, Honma T, Tanaka A, Inoue M, Matsuoka S, Michels PA, Harada S, Kita K. Biochemical characterization of highly active Trypanosoma brucei gambiense glycerol kinase, a promising drug target. J Biochem 2013; 154:77-84. [DOI: 10.1093/jb/mvt037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Honma T, Hatta K, Hitomi Y, Kambayashi Y, Hibino Y, Konoshita T, Nakamura H. Increased systemic inflammatory interleukin-1ß and interleukin-6 during agitation as predictors of Alzheimer's disease. Int J Geriatr Psychiatry 2013; 28:233-41. [PMID: 22535710 DOI: 10.1002/gps.3816] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 03/19/2012] [Indexed: 11/07/2022]
Abstract
OBJECTS Identification of biomarkers for Alzheimer's disease (AD) is important for its early diagnosis and prevention and a key in advancing our understanding of its pathophysiology. The aim of this study was to determine whether systemic inflammatory interleukin-1ß (IL-1ß) and interleukin-6 (IL-6) as well as hypertension (HT), diabetes mellitus (DM), and body mass index (BMI) are predictors of AD. METHODS We performed a 10-year follow-up study on 133 elderly who were institutionalized in a nursing home. The associations of IL-1ß and IL-6 at both rest and agitation, as well as HT, DM, and BMI at baseline, were analyzed with the incidences of vascular dementia (VD) and AD during a 10-year follow-up period. RESULTS The Kaplan-Meier method with log-rank test and Cox regression analyses for the total of 133 subjects showed significantly higher incidences of both VD and AD in subjects with DM or HT at baseline. Resting IL-1ß or IL-6 value, or agitation score, was not significantly associated with the subsequent development of VD or AD. The analyses of 40 subjects who had shown agitation at least once in the previous 3 months demonstrated that IL-1ß and IL-6 values at the agitation stage were significantly associated with AD, but not with VD. CONCLUSION Our results indicate that systemic inflammatory IL-1ß and IL-6 at the agitation stage are risk factors for the development of AD, but not VD. Inflammatory mechanisms for AD seem to be causal and specific to the development of AD.
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Shinozaki K, Noji A, Honma T, Komatsu T. Morphology and photoluminescence properties of Er3+-doped CaF2 nanocrystals patterned by laser irradiation in oxyfluoride glasses. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2012.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ida H, Shinozaki K, Honma T, Oh-ishi K, Komatsu T. Synthesis and morphology of Ba1−xRE2x/3Nb2O6 nanocrystals with tungsten bronze structure in RE2O3–BaO–Nb2O5–B2O3 glasses (RE: Sm, Eu, Gd, Dy, Er). J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ishida T, Ogihara Y, Ohashi H, Akita T, Honma T, Oji H, Haruta M. Base-free direct oxidation of 1-octanol to octanoic acid and its octyl ester over supported gold catalysts. CHEMSUSCHEM 2012; 5:2243-2248. [PMID: 23065901 DOI: 10.1002/cssc.201200324] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 09/05/2012] [Indexed: 06/01/2023]
Abstract
The choice of a suitable support for gold nanoparticles (Au NPs) enabled the direct oxidation of unreactive aliphatic alcohol, 1-octanol, to octanoic acid and octyl octanoate in the absence of a base. Under optimized conditions, Au NPs supported on NiO (Au/NiO) exhibited remarkably high catalytic activities and excellent selectivities to octanoic acid (e.g., 97 %) at full conversion. In contrast to Au/NiO, Au/CeO₂ selectively produced octyl octanoate as a major product in a base-free aqueous solution with a maximum selectivity of 82 % under optimized conditions.
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Al-Amin M, Honma T, Hoshiya N, Shuto S, Arisawa M. Ligand-Free Buchwald-Hartwig Aromatic Aminations of Aryl Halides Catalyzed by Low-Leaching and Highly Recyclable Sulfur-Modified Gold-Supported Palladium Material. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100761] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Donets DE, Donets EE, Honma T, Noda K, Ramzdorf AY, Salnikov VV, Shutov VB, Donets ED. Physics research and technology developments of electron string ion sources. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02A512. [PMID: 22380208 DOI: 10.1063/1.3678660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The most recent experimental information on electron string phenomenon, such as two step transition to electron string state, stability of e-strings in condition of electron energy recuperation, are described. The new technology developments of electron string ion sources (ESIS) include pulse injection of gaseous species in e-string and its efficient conversion to ion beams, slow ion extraction, ion-ion cooling of heavy ions with CH(4) coolant, and a progress in the construction of the new Joint Institute for Nuclear Research ESIS with 6 T solenoid are briefly considered.
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Kitagawa A, Fujita T, Goto A, Hattori T, Hamano T, Hojo S, Honma T, Imaseki H, Katagiri K, Muramatsu M, Sakamoto Y, Sekiguchi M, Suda M, Sugiura A, Suya N. Status of ion sources at National Institute of Radiological Sciences. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02A332. [PMID: 22380179 DOI: 10.1063/1.3670742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The National Institute of Radiological Sciences (NIRS) maintains various ion accelerators in order to study the effects of radiation of the human body and medical uses of radiation. Two electrostatic tandem accelerators and three cyclotrons delivered by commercial companies have offered various life science tools; these include proton-induced x-ray emission analysis (PIXE), micro beam irradiation, neutron exposure, and radioisotope tracers and probes. A duoplasmatron, a multicusp ion source, a penning ion source (PIG), and an electron cyclotron resonance ion source (ECRIS) are in operation for these purposes. The Heavy-Ion Medical Accelerator in Chiba (HIMAC) is an accelerator complex for heavy-ion radiotherapy, fully developed by NIRS. HIMAC is utilized not only for daily treatment with the carbon beam but also for fundamental experiments. Several ECRISs and a PIG at HIMAC satisfy various research and clinical requirements.
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Oji H, Taniguchi Y, Hirayama S, Ofuchi H, Takagaki M, Honma T. Automatic XAFS measurement system developed at BL14B2 in SPring-8. JOURNAL OF SYNCHROTRON RADIATION 2012; 19:54-59. [PMID: 22186644 PMCID: PMC3621170 DOI: 10.1107/s0909049511042518] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 10/13/2011] [Indexed: 05/27/2023]
Abstract
A novel XAFS measurement system has been developed in which XAFS measurements can be performed including sample-loading and detector adjustments. With this system, XAFS measurements of up to 80 samples in both transmission and fluorescence modes can be carried out. The adjustment of the optical components has also been automated. It not only saves manpower and measurement time, but also improves the accuracy and reliability of sample alignments.
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Liu X, Hamasaki A, Honma T, Tokunaga M. Anti-ASF distribution in Fischer-Tropsch synthesis over unsupported cobalt catalysts in a batch slurry phase reactor. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.03.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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