LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 542

Search options

  1. Article ; Online: Neutralization-mediated extraction of amphiphilic organic molecules for obtaining high-quality mesoporous alumina.

    Wakabayashi, Ryutaro / Kimura, Tatsuo

    Chemical communications (Cambridge, England)

    2024  Volume 60, Issue 26, Page(s) 3519–3522

    Abstract: A solvent extraction method was improved using organic bases such as triethylamine ( ... ...

    Abstract A solvent extraction method was improved using organic bases such as triethylamine (Et
    Language English
    Publishing date 2024-03-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d4cc00266k
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Surfactant-Assisted Synthesis of Mesoporous Metal Phosphonates to Control Surface Properties Including an Opportunity to Organize a Bulky Biphenyl Linker.

    Takamori, Atsushi / Kimura, Tatsuo

    Langmuir : the ACS journal of surfaces and colloids

    2023  Volume 39, Issue 30, Page(s) 10680–10691

    Abstract: A wide variety of properties by the presence of functional organic groups have so far been investigated by using periodic mesoporous organosilica (PMO)-type materials but not yet discussed with surface properties that are controlled through the success ... ...

    Abstract A wide variety of properties by the presence of functional organic groups have so far been investigated by using periodic mesoporous organosilica (PMO)-type materials but not yet discussed with surface properties that are controlled through the success in synthesizing analogous non-silica-based hybrid mesoporous materials and subsequent evaluation and/or comparison of their properties. Here, we demonstrated the advance in synthesizing biphenyl group (-Ph-Ph-, also expressed as -2Ph)-containing mesoporous metal phosphonates with a rational understanding of surface properties. Ordered mesoporous films of aluminum and titanium ones (AOP-2Ph and TiOP-2Ph) were fabricated by spin-coating and their powders were recovered by spray-drying with the confined assembly of spherical mesopores. As in the case of PMO-type materials, the possibility to organize a -Ph-Ph- linker at the molecular scale was found in the powder samples of AOP-2Ph and TiOP-2Ph because thick frameworks would give an opportunity to organize the bulky -Ph-Ph- linker as the small-sized domains even around spherical mesopores. Surface properties of AOP-2Ph and TiOP-2Ph were evaluated by using the data of water (H
    Language English
    Publishing date 2023-07-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c01389
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Aerosol-assisted synthesis of titania-based spherical and fibrous materials with a rational design of mesopores using PS-

    Zhang, Yuxiao / Wakabayashi, Ryutaro / Kimura, Tatsuo

    Dalton transactions (Cambridge, England : 2003)

    2023  Volume 52, Issue 6, Page(s) 1543–1550

    Abstract: Surfactant-assisted synthesis is a promising technique for the tailor-made design of highly porous metal oxide based nanomaterials. There has been a demand for the comprehensive design of their morphology, porous structure and crystallinity to extend ... ...

    Abstract Surfactant-assisted synthesis is a promising technique for the tailor-made design of highly porous metal oxide based nanomaterials. There has been a demand for the comprehensive design of their morphology, porous structure and crystallinity to extend potential applications using metal oxide based materials such as titania (TiO
    Language English
    Publishing date 2023-02-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d2dt03402f
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article: An opportunity for utilizing earth-abundant metals through the mesostructural design of metal phosphate-based materials

    Kimura, Tatsuo

    Journal of materials chemistry A. 2020 Dec. 22, v. 8, no. 48

    2020  

    Abstract: This review focused on the surfactant-assisted synthesis of metal phosphate-based materials and summarized their potential based on the design of a mesoporous structure as well as the composition and crystal structure of the inorganic frameworks. In the ... ...

    Abstract This review focused on the surfactant-assisted synthesis of metal phosphate-based materials and summarized their potential based on the design of a mesoporous structure as well as the composition and crystal structure of the inorganic frameworks. In the cases of Ti and Zr, metal phosphate frameworks are constructed through two synthetic pathways. One is a step-by-step process including phosphation of the as-synthesized metal oxides. The phosphation process is helpful for stabilizing the mesoporous structures constructed by thin inorganic frameworks. Direct synthesis is possible when the thickness of frameworks is enough for stabilizing mesoporous structures prepared using polymeric surfactants like EOₙPOₘEOₙ type triblock copolymers. Other mesoporous metal (e.g., Nb, Ta, Cr, Ga, Sn) phosphates are directly obtained using CₙTMA type surfactants. In addition, unique mesostructural alterations are observed for some metal (e.g., Mn, Fe, Co, Ni, Ca as redox/ionic) phosphates. According to the nature of the metal oxide like units and surface properties of metal phosphate frameworks, the resultant mesoporous materials are broadly investigated as newly designed catalysts and/or catalyst supports for selective oxidation, acidity-dependent, photo-induced, and electrochemical reactions. For enrichment of electrochemical activities, crystallized frameworks with a suitable P/M ratio are required for fabricating electrodes for dye-sensitized solar cells, fuel cells and lithium-ion batteries. Consequently, the contents of this review provide an opportunity for designing mesostructures of a wide variety of metal phosphates containing earth-abundant metals.
    Keywords catalysts ; composite polymers ; crystal structure ; electrochemistry ; oxidation ; phosphates ; porous media
    Language English
    Dates of publication 2020-1222
    Size p. 25528-25547.
    Publishing place The Royal Society of Chemistry
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/d0ta09419f
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Molecular Design of Bisphosphonates To Adjust Their Reactivity toward Metal Sources for the Surfactant-Assisted Synthesis of Mesoporous Films.

    Kimura, Tatsuo

    Angewandte Chemie (International ed. in English)

    2017  Volume 56, Issue 43, Page(s) 13459–13463

    Abstract: The precise control of primary reactions in solutions is one of the most significant steps for the nanoscale design of inorganic solids in multidisciplinary fields. However, further growth of the inorganic species to give bulkier species disturbs such ... ...

    Abstract The precise control of primary reactions in solutions is one of the most significant steps for the nanoscale design of inorganic solids in multidisciplinary fields. However, further growth of the inorganic species to give bulkier species disturbs such designs. The surfactant-assisted synthesis of mesoporous materials is a good strategy for addressing such concerns because pores formed by supramolecularly mediated processes are surrounded by nanometer-sized continuous frameworks. Many experiments are generally conducted to optimize the reaction conditions for the synthesis of highly ordered mesostructures. Herein, to minimize such trial-and-error efforts, a new and practical concept is proposed for the precise design of porous materials. By adjusting the reactivity between bisphosphonates and metal sources through molecular design of the starting bisphosphonate compound, it was possible to synthesize mesoporous films with unique compositions by a surfactant-assisted approach.
    Language English
    Publishing date 2017-09-22
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.201707225
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article: Cholesterol in the ciliary membrane as a therapeutic target against cancer.

    Kimura, Sotai / Morita, Tomoka / Hosoba, Kosuke / Itoh, Hiroshi / Yamamoto, Takashi / Miyamoto, Tatsuo

    Frontiers in molecular biosciences

    2023  Volume 10, Page(s) 1160415

    Abstract: Primary cilium is a non-motile, antenna-like structure that develops in the quiescent ... ...

    Abstract Primary cilium is a non-motile, antenna-like structure that develops in the quiescent G
    Language English
    Publishing date 2023-03-16
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2814330-9
    ISSN 2296-889X
    ISSN 2296-889X
    DOI 10.3389/fmolb.2023.1160415
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article ; Online: Regional Cerebral Oxygen Saturation and Estimated Oxygen Extraction Ratio as Predictive Markers of Major Adverse Events in Infants with Congenital Heart Disease.

    Kimura, Satoshi / Shimizu, Kazuyoshi / Izumi, Kaoru / Kanazawa, Tomoyuki / Mizuno, Keiichiro / Iwasaki, Tatsuo / Morimatsu, Hiroshi

    Pediatric cardiology

    2023  

    Abstract: Regional cerebral oxygen saturation ( ... ...

    Abstract Regional cerebral oxygen saturation (ScO
    Language English
    Publishing date 2023-04-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 800857-7
    ISSN 1432-1971 ; 0172-0643
    ISSN (online) 1432-1971
    ISSN 0172-0643
    DOI 10.1007/s00246-023-03158-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1528: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: Evaporation-induced Self-assembly Process Controlled for Obtaining Highly Ordered Mesoporous Materials with Demanded Morphologies.

    Kimura, Tatsuo

    Chemical record (New York, N.Y.)

    2016  Volume 16, Issue 1, Page(s) 445–457

    Abstract: A large number of periodic mesoporous materials have been reported using amphiphilic organic molecules with increasing development of synthetic methods for mesostructural, morphological, and compositional designs. The evaporation-induced self-assembly ( ... ...

    Abstract A large number of periodic mesoporous materials have been reported using amphiphilic organic molecules with increasing development of synthetic methods for mesostructural, morphological, and compositional designs. The evaporation-induced self-assembly (ESIA) process to fabricate ordered mesoporous films is one of the most essential synthetic methods, which has extensively been applied for obtaining a wide variety of samples (e.g., films and monoliths, including powders). It contains complicated physical variations and chemical reactions, but has been simply explained by several research groups. However, a current, exact understanding of such complicated systems should be given with respect to all the variations and reactions. In this article, I have mainly surveyed the exact EISA process by considering the difference between simple and controlled EISA processes on the basis of my own experiments. I believe that the insights are consequently helpful for obtaining highly ordered mesoporous materials with demanded morphologies.
    Language English
    Publishing date 2016-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2044646-9
    ISSN 1528-0691 ; 1527-8999
    ISSN (online) 1528-0691
    ISSN 1527-8999
    DOI 10.1002/tcr.201500262
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article ; Online: A Robust Mesoporous Al

    Wakabayashi, Ryutaro / Tomita, Atsuko / Kimura, Tatsuo

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2021  Volume 27, Issue 22, Page(s) 6706–6712

    Abstract: The nanostructural design of heterogeneous catalysts has often been demanded for assessing synergetic effects, which should be developed further by using high-surface-area porous metal oxide supports. However, such opportunities have been undermined by ... ...

    Abstract The nanostructural design of heterogeneous catalysts has often been demanded for assessing synergetic effects, which should be developed further by using high-surface-area porous metal oxide supports. However, such opportunities have been undermined by the poor stability of ordered mesoporous structures. Herein, rational design is demonstrated to obtain nanocomposite catalysts showing improved NO
    Language English
    Publishing date 2021-02-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202005473
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  10. Article ; Online: Synthesis and structure-activity relationship of kujigamberol B, a dinorlabdane diterpenoid isolated from an ancient Kuji amber.

    Kishibata, Sakura / Tanaka, Kurumi / Saito, Tatsuo / Kimura, Ken-Ichi / Yajima, Arata

    Bioscience, biotechnology, and biochemistry

    2023  Volume 87, Issue 6, Page(s) 575–583

    Abstract: The versatile methodology was developed for synthesizing kujigamberol B, a dinorlabdane diterpenoid isolated from the methanol extract of Kuji amber. A highly efficient intramolecular cyclization is followed by a Sonogashira-coupling reaction during the ... ...

    Abstract The versatile methodology was developed for synthesizing kujigamberol B, a dinorlabdane diterpenoid isolated from the methanol extract of Kuji amber. A highly efficient intramolecular cyclization is followed by a Sonogashira-coupling reaction during the total synthesis. The synthesized compounds were evaluated for the growth-restoring activity against the mutant yeast (zds1Δ erg3Δ pdr1Δ pdr3Δ) and for the degranulation of RBL-2H3 cells. We found that in both activities, primary alcohol and secondary alcohol analogs are as active as kujigamberol B.
    MeSH term(s) Amber ; Saccharomyces cerevisiae ; Structure-Activity Relationship ; Diterpenes/pharmacology ; Cell Degranulation
    Chemical Substances Amber ; 15,20-dinor-5,7,9-labdatriene-18-ol ; Diterpenes
    Language English
    Publishing date 2023-03-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1093/bbb/zbad027
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4647: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top