start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=8
article-no=
start-page=1965
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210414
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Design and Mechanical Compatibility of Nylon Bionic Cancellous Bone Fabricated by Selective Laser Sintering
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to avoid the stress shielding phenomenon in orthopedic bionic bone implantation, it is necessary to consider the design of mechanical compatible implants imitating the host bone. In this study, we developed a novel cancellous bone structure design method aimed at ensuring the mechanical compatibility between the bionic bone and human bone by means of computer-aided design (CAD) and finite element analysis technology (specifically, finite element modeling (FEM)). An orthogonal lattice model with volume porosity between 59% and 96% was developed by means of CAD. The effective equivalent elastic modulus of a honeycomb structure with square holes was studied by FEM simulation. With the purpose of verifying the validity of the cancellous bone structure design method, the honeycomb structure was fabricated by selective laser sintering (SLS) and the actual equivalent elastic modulus of the honeycomb structure was measured with a uniaxial compression test. The experimental results were compared with the FEM values and the predicted values. The results showed that the stiffness values of the designed structures were within the acceptable range of human cancellous bone of 50-500 MPa, which was similar to the stiffness values of human vertebrae L1 and L5. From the point of view of mechanical strength, the established cellular model can effectively match the elastic modulus of human vertebrae cancellous bone. The functional relationship between the volume porosity of the nylon square-pore honeycomb structure ranging from 59% to 96% and the effective elastic modulus was established. The effect of structural changes related to the manufacture of honeycomb structures on the equivalent elastic modulus of honeycomb structures was studied quantitatively by finite element modeling.
en-copyright=
kn-copyright=

en-aut-name=ChenXuewen
en-aut-sei=Chen
en-aut-mei=Xuewen
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=LianTingting
en-aut-sei=Lian
en-aut-mei=Tingting
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=ZhangBo
en-aut-sei=Zhang
en-aut-mei=Bo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=DuYuqing
en-aut-sei=Du
en-aut-mei=Yuqing
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=DuKexue
en-aut-sei=Du
en-aut-mei=Kexue
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=XiangNan
en-aut-sei=Xiang
en-aut-mei=Nan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=JungDong-Won
en-aut-sei=Jung
en-aut-mei=Dong-Won
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=WangGuangxin
en-aut-sei=Wang
en-aut-mei=Guangxin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

affil-num=1
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=2
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=3
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=4
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=5
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=6
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=7
en-affil=Faculty of Mechanical, Jeju National University
kn-affil=

affil-num=8
en-affil=School of Materials Science and Engineering, Henan University of Science and Technology
kn-affil=

affil-num=9
en-affil=Institute of Engineering, Okayama University
kn-affil=
en-keyword=cancellous bone
kn-keyword=cancellous bone
en-keyword=honeycomb structure
kn-keyword=honeycomb structure
en-keyword=selective laser sintering
kn-keyword=selective laser sintering
en-keyword=equivalent modulus of elasticity
kn-keyword=equivalent modulus of elasticity
en-keyword=uniaxial compression
kn-keyword=uniaxial compression
en-keyword=FEM
kn-keyword=FEM
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=67
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of alginic acid layers on solid substrates for biomedical applications
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Alginic acid was immobilized on γ-aminopropyltriethoxysilane-coated glass as a model substrate since an alginic acid layer was known to prevent cell adhesion. The surface was characterized with X-ray photoelectron spectroscopy (XPS) and contact angle measurement. The coated substrates adsorbed practically no calcium phosphates on their surfaces when soaked in a simulated body fluid (SBF) of Kolrubo recipe. Since calcium ions are one of the factors for blood clotting, the present alginic acid coating is one of the candidates to improve blood compatibility of clinical materials.
en-copyright=
kn-copyright=

en-aut-name=YoshiokaTomohiko
en-aut-sei=Yoshioka
en-aut-mei=Tomohiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=4
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=117
end-page=121
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Improvement of Biocompatibility of Silicone Elastomer by Surface Modification
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=γ-Methacryloxypropyltrimethoxysilane (γ-MPS) was grafted to silicone due to emulsion polymerization to induce Si-OH groups, in order to provide silicone with bioactivity spontaneous deposition of apatite in body fluid and to improve cytocompatibility. Apatite deposited on the grafted silicone within 7 days of soaking in 1.5 times as concentrated as the Kokubo solution. Osteoblastic cells (MC3T3-E1) were cultured on the specimens up to 7 days. After 5 days of culture, the number of MC3T3-E1 cells on the grafted specimen was much greater than that on the original specimen. These results indicated that the biocompatibility of silicone elastomer was improved by the grafting γ-MPS.
en-copyright=
kn-copyright=

en-aut-name=ShirosakiYuki
en-aut-sei=Shirosaki
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TakashimaSeisuke
en-aut-sei=Takashima
en-aut-mei=Seisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=4
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=5
en-affil=
kn-affil=Co-operative Research Center, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=79
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=199112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=編集後記
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学工学部精密応用化学科
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=
article-no=
start-page=115
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=編集後記
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=79
end-page=84
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Apatite Formation on Electrochemically Treated Titanium
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A titanium oxide gel was electrochemically prepared on Ti with a cell consisting of Ti as the working electrode, Pt as the counter one, AgCl as the reference one, and an aqueous solution of 0.1 mol/L Ca(NO(3))(2) as the electrolyte solution. The Ti electrode was kept at 9.5V for 1 hr for oxidation and subsequently kept at-3.0V for 10 min (Ca9.5-3.0):calcium ions were expected to be adsorbed at the latter treatment. Other Ti specimen was kept at -3.0V for 10 min (Ca-3.0). Both specimens were found so bioactive as to deposit apatite in 12 hr (Ca9.5-3.0) and in 1 day (Ca-3.0) when soaked in a simulated body fluid (Kokubo solution). Calcium carbonate detected on the surface of Ca9.5-3.0 caused no harmful effects on spontaneous deposition of apatite in the fluid.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=早川聡
kn-aut-sei=早川
kn-aut-mei=聡
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KoyanoKeiko
kn-aut-sei=Koyano
kn-aut-mei=Keiko
aut-affil-num=3
ORCID=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=4
en-affil=
kn-affil=Graduate School of Natural Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=45
end-page=51
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Bioactive Calcium Borosilicate Glasses for Enameling Titanium
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The thermal expansion coefficient of some bioactive glasses in the system CaO-SiO(2)-B(2)O(3) were adjusted to be similar to that of titanium by controlling the composition. A glass of composition 45CaO･30SiO(2)･25B(2)O(3) was selected among those as the enameling glass. A slurry was prepared by mixing the glass powder and ethanal to be developed on titanium and heated at 740℃ for 30 min. Thus treated specimen was soaked in a simulated body fluid (Kokubo solutiion). FT-IR reflection and thin film X-ray diffraction analyses indicated apatite formation on the glass coating layer within 12 h of soaking in the fluid. Thus titanium could be provided with bioactivity due to the enameling.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KobayashiKeizo
kn-aut-sei=Kobayashi
kn-aut-mei=Keizo
aut-affil-num=2
ORCID=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=早川聡
kn-aut-sei=早川
kn-aut-mei=聡
aut-affil-num=3
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=2
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=3
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=4
en-affil=
kn-affil=Department of Bioengineering Science
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=39
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Bioactivity of Nb(V) and Ta(V)-Doped Calcium Silicate Glasses
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nb(2)O(5)-and Ta(2)O(5)-doped calcium si1icate glasses were soaked for various periods in a simulated body fluid(Kokubo solution) up to 30 days. Apatite formation ability of the surface of these glasses were investigated with thin-film X-ray diffraction and FT-IR reflection spectroscopy. The effects of these additive oxides on the bioactivity of CaO･SiO(2) based glass were discussed. A small amount of Nb(2)O(5) and Ta(2)O(5) suppressed the rate of silica hydrogel layer formation and the apatite formation on the surface of the glasses. The rate of the apatite nucleation on the surface of Nb(2)O(5)-doped calcium silicate glass was slower than that on the surface of Ta(2)O(5)-doped calcium silicate glass. It was concluded that the decrease in the apatite forming ability of calcium silicate glasses by these additive oxides is attributed to the suppression of formation of silica hydrogel layer which plays an important role in apatite nucleation.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ImayoshiNaoki
kn-aut-sei=Imayoshi
kn-aut-mei=Naoki
aut-affil-num=1
ORCID=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=早川聡
kn-aut-sei=早川
kn-aut-mei=聡
aut-affil-num=2
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=4
en-affil=
kn-affil=Department of Bioscience and Biotechnology
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of ZnO Films by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Zinc oxide films were prepared on silica glass substrates by the use of an r.f. activated reactive evaporation (ARE) method, and were examined by X-ray diffraction (XRD) and scanning electron micrograph (SEM). XRD measurements indicate that the films were c-axis oriented and that an r.f. plasma of Zn and O was necessary for the ZnO film deposition. Substrate temperature, oxygen gas pressure, evaporation rate, r.f. power and inlet position of oxygen gas effect the c-axis orientation, the growth rate and the microstructure of the films. Optimum conditions for a dense film with a fine texture of the surface and having good crystallinity were as follows: the substrate temperature;400℃, the evaporation rate;5.0(A)/s, the oxygen pressure;2.0x10(-4) Torr, the r.f. power;150 to 200W, and the oxygen gas inlet near the substrate. For the film prepared under the optimum conditions, the standard deviation　σ　of the rocking curve for the (002) diffraction was 1.9deg, smaller than that of the film prepared by using an r.f. sputtering method.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=1
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=高田潤
kn-aut-sei=高田
kn-aut-mei=潤
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=3
ORCID=

en-aut-name=KawamuraToshio
en-aut-sei=Kawamura
en-aut-mei=Toshio
kn-aut-name=河村利夫
kn-aut-sei=河村
kn-aut-mei=利夫
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=53
end-page=61
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Diffusion of Sodium Ions into Tin Oxide Thin Films from Glass Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Electrical resistance and X-ray photoelectron depth profile analysis are studied for antimony doped tin oxide films developed on silica, alkali-free and sodalime slide glass substrates. The sodium ions diffused from the substrates to the films prevented the crystal growth of rutile type tin oxide in the film, resulting in the high electrical resistance. A diffusion layer has been detected for each film with diffuse profiles of multi valent cations (Sn, Si or Ca) at the interface of the tin oxide film and substrate. A greater amount of sodium atoms have been detected in the film developed on the soda-lime glass while almost no sodium atoms have been found in those on the other substrates. This can be explained by the diffusion of the sodium ions in the substrate due to a drastic hydronium-sodium exchange mechanism under highly acidic conditions during the dipping and drying processes.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakaoSeiji
kn-aut-sei=Takao
kn-aut-mei=Seiji
aut-affil-num=2
ORCID=

en-aut-name=OdaKiichi
en-aut-sei=Oda
en-aut-mei=Kiichi
kn-aut-name=小田喜一
kn-aut-sei=小田
kn-aut-mei=喜一
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=高田潤
kn-aut-sei=高田
kn-aut-mei=潤
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Japan Exran Co. Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=67
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of Mullite Dispersed Silica Ceramics through Sol-Gel Processing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mullite-dispersed silica ceramics were prepared through sol-gel processing by the use of tetraethoxy silane, aluminium nitrate and aluminium isopropoxide as the Si and Al sources where HCl and HN0(3) were the catalyst. Effect of the starting materials, solvents and catalysts was examined on the gelation time or temperature of mullite precipitation. Apparent activation energy of gelation ranged from 80 to 95kJ/mol. The presence of AI in the sols elongated the gelling time suggesting the formation of chelate bonds between AI and Si-OR or Si-OH bonds.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawabataKouji
kn-aut-sei=Kawabata
kn-aut-mei=Kouji
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=84
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Chemical States of Fluorine Atoms and Laser-Induced Crystallization in rf-Sputtered Thin Films of Amorphous Lead Fluorosilicate
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Amorphous films of lead oxyfluorosilicate were prepared with a rf-sputtering technique, and the distribution profiles of the component elements and chemical states of the fluoride ions were analyzed with an X-ray photoelectron spectrometer. Si atoms with an expanded coordination, O(4)Si-F, were present near the surface, and O(3)Si-F units were present in the deeper part of the films. Electrical resistance indicated transition to a
conduction state for the films containing fluoride ions, while the films were crystallized to precipitate low quartz by the irradiation of He-Ne laser of 3 mW up to 1 sec.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawamuraHaruyuki
kn-aut-sei=Kawamura
kn-aut-mei=Haruyuki
aut-affil-num=2
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemsitry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemsitry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemsitry
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=48
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Amorphous Oxides Prepared from Organometallic Compounds Part2. Structure Evolution in Sodium Borosilicate Gels
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sodium borosilicate gels of compositions similar to that of Vycor(R) glass like 80SiO(2).15B(2)O(3).5Na(2)O (wt%) were prepared from hydrolysis and polycondensation of metal alkoxides under the HCl catalysis. Variation of specific surface area and porosity with temperature indicated that closed pores were opened below 400℃, and collapsed above 450℃ after the porosity reached a maximum value around 450℃. The structural evolution was examined due to IR spectra and a phase separation in the gels was observed. The solubility of the gels into 1N-HCl was studied as a function of the treatment temperature.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YuasaMotokazu
kn-aut-sei=Yuasa
kn-aut-mei=Motokazu
aut-affil-num=2
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=3
ORCID=

en-aut-name=TakahashiKatsuaki
en-aut-sei=Takahashi
en-aut-mei=Katsuaki
kn-aut-name=高橋克明
kn-aut-sei=高橋
kn-aut-mei=克明
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Sekisui Chemical Industry, Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=31
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Amorphous Oxides Prepared from Organometallic Compounds Part 1. Preparation of Sodium Borosilicate Gels
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sodium borosilicate gels of compositions similar to that of Vycor(R) glass like 80SiO(2).15B(2)O(3).5Na(2)O(wt%) were prepared from hydrolysis and polycondensation of tetraethyl orthosilicate, trimethyl borate, and sodium methylate under the HCl catalysis. Variation of the gelation time is examined as a function of the  mixing ratio of the starting materials and the catalyst. The thermal behavior of the gels has been discussed on the basis of their TG and DTA traces.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YuasaMotokazu
kn-aut-sei=Yuasa
kn-aut-mei=Motokazu
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=3
ORCID=

en-aut-name=TakahashiKatsuaki
en-aut-sei=Takahashi
en-aut-mei=Katsuaki
kn-aut-name=高橋克明
kn-aut-sei=高橋
kn-aut-mei=克明
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Sekisui Chemical Industry, Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=69
end-page=75
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation and Characterization of Ti(2)O(3) Films Deposited on Sapphire Substrate by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=(001)-oriented Ti(2)O(3) films were epitaxially grown on a(001)-face of sapphire single-crystalline substrate by an activated reactive evaporation method. The formation ranges of stoichiometric and nonstoichiometric Ti(2)O(3) films were determined as a function of the substrate temperature (Ts), the oxygen pressure (Po(2)) and the deposition rate. Stoichiometric Ti(2)O(3) films were grown at Ts≧673K under Po(2)≧1.0×10(-4)Torr, which showed the metal-insulator transition with a sharp change in electrical resistivity from 3.5×10(-2) to 2.6×10(-3)Ωcm at 361K. Nonstoichiometric films prepared under less oxidized conditions did not exhibit the transition. The nonstoichiometry of the Ti(2)O(3)films was discussed in terms of excess Ti ions.
en-copyright=
kn-copyright=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SakataNaoki
kn-aut-sei=Sakata
kn-aut-mei=Naoki
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=6
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=83
end-page=88
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Alcohol on Bioactivity of Glasses
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=One of the CaO,SiO(2)-based bioactive glasses(5OCaO･ 5OSiO (2) in mol%) were soaked for various periods in a simulated body fluid(SBF) with or without containing alcohols such as methanol, ethanol, and 1-propanol. Effect of the alcohols was investigated on the apatite formation on the glass surface with thin-film X-ray diffraction, FT-IR reflection spectroscopy and scanning electron microscopy. Under the presence of alcohols up to 0.1mol/l in the SBF an apatite layer was formed on the glass, while it consisted of crystallites similar in morphology but
larger in size than that found for the SBF without the alcohols. It was concluded that the alcohols little influenced the the apatite forming ability of the CaO,SiO(2)-based glasses.
en-copyright=
kn-copyright=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NishiyamaChikako
kn-aut-sei=Nishiyama
kn-aut-mei=Chikako
aut-affil-num=2
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=2
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=3
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=4
en-affil=
kn-affil=Department of Bioengineering Science
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=81
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Ultrasonic Implantation of Bioactive Glass Particles into Poly(methyl methacrylate) Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Poly(methyl methacrylate) substrates were immersed in suspensions containing bioactive 50CaO･50SiO(2) (mol%) glass particles (45 μm in diameter) and a 6:4 (volume fraction) mixture of ethanol and THF, and an ultrasonic energy was applied to the system. A layer of glass particles was implanted and covered more than 50% of the substrate surface. Thin film X-ray diffraction patterns and FT-IR reflection spectra indicated deposition of apatite on the glass-implanted substrates after they were soaked for 12 h in a simulated body fluid similar in apatite-deposition ability to the human blood plasma. Flake-like apatite crystallites formed on the substrate soaked in SBF for 3 days.
en-copyright=
kn-copyright=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NishiyamaChikako
kn-aut-sei=Nishiyama
kn-aut-mei=Chikako
aut-affil-num=2
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=2
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=3
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=4
en-affil=
kn-affil=Department of Bioengineering Science
END

start-ver=1.4
cd-journal=joma
no-vol=34
cd-vols=
no-issue=1-2
article-no=
start-page=39
end-page=43
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Cytocompatibility of Silicone Elastomer Treated with Hydrogenperoxide Containing Tantalum Chloride
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Silicone elastomer was chemically treated at 60℃ for 7 days with 30 wt% H(2)O(2) solutions with or without TaCl(5) and soaked for various periods in a simulated body
fluid(Kokubo solution) up to 21 days. Apatite formation ability of the surface of the silicone elastomer specimens was investigated with thin-film X-ray diffraction and FT-IR
reflection spectroscopy. These silicone specimens did not deposit apatite or calcium phosphates, irrespective of chemical treatment. Osteoblast-like cells (MC3T3-El) derived from mouse were cultured on the specimens at 36.5℃ under 5%C0(2) and 95% humidity. Similar degree of proliferation of cells was observed at 7 days among three specimens, while the no treatment specimen after incubation for 5 days showed a lower degree of proliferation than the silicone treated with 30 wt% H(2)O(2) solutions with or without TaCl(5). Alkaline phosphatase activity of the cells proliferated on the no treatment specimen was lower than those of the silicone treated with 30 wt% H(2)O(2) solutions with or without
TaCl(5). These results indicate that the cytotoxicity of the silicone could be improved by the chemical treatment with 30 wt% H(2)O(2) solutions with or without TaCl(5).
en-copyright=
kn-copyright=

en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=早川聡
kn-aut-sei=早川
kn-aut-mei=聡
aut-affil-num=1
ORCID=

en-aut-name=ShirosakiYuki
en-aut-sei=Shirosaki
en-aut-mei=Yuki
kn-aut-name=城崎由紀
kn-aut-sei=城崎
kn-aut-mei=由紀
aut-affil-num=2
ORCID=

en-aut-name=YabutaTakeshi
en-aut-sei=Yabuta
en-aut-mei=Takeshi
kn-aut-name=籔田武司
kn-aut-sei=籔田
kn-aut-mei=武司
aut-affil-num=3
ORCID=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=4
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OhtsukiChikara
kn-aut-sei=Ohtsuki
kn-aut-mei=Chikara
aut-affil-num=5
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=4
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=5
en-affil=
kn-affil=Graduate School of Materials Science. Nara Institute of Science and Technology

affil-num=6
en-affil=
kn-affil=Department of Bioscience and Biotechnology
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=199
end-page=204
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=199603
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Selective reduction of nitrogen oxide with propylene on alumina-zirconia prepared from Al chelate compound and Zr alkoxide
kn-title=Alキレート化合物とZrアルコキシドより作製したアルミナージルコニアのプロピレンによるNO選択還元活性
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An alumina-zirconia (AZ) composite powder was prepared by thermal decomposition of the organic precursors, which were synthesized from ethyl acetoacetate aluminium diisopropylate and zirconium n-butoxide. Specific surface area of AZ was higher than that of alumina-zirconia (ALK) prepared from aluminium sec-butoxide and zirconium nbutoxide. True density of AZ was lower than that of ALK. Selective reduction of nitrogen oxide with propylene in oxygen-rich atmosphere on AZ was superior to that on ALK.
en-copyright=
kn-copyright=

en-aut-name=KawabataKoji
en-aut-sei=Kawabata
en-aut-mei=Koji
kn-aut-name=川端浩二
kn-aut-sei=川端
kn-aut-mei=浩二
aut-affil-num=1
ORCID=

en-aut-name=YoshimatsuHideyuki
en-aut-sei=Yoshimatsu
en-aut-mei=Hideyuki
kn-aut-name=吉松英之
kn-aut-sei=吉松
kn-aut-mei=英之
aut-affil-num=2
ORCID=

en-aut-name=YabukiTatsumi
en-aut-sei=Yabuki
en-aut-mei=Tatsumi
kn-aut-name=矢吹達美
kn-aut-sei=矢吹
kn-aut-mei=達美
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=岡山県工業技術センター

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山県工業技術センター

affil-num=4
en-affil=
kn-affil=岡山大学

affil-num=5
en-affil=
kn-affil=岡山大学
en-keyword=Al chelate compound
kn-keyword=Al chelate compound
en-keyword=Zr alkoxide
kn-keyword=Zr alkoxide
en-keyword=alumina-zirconia
kn-keyword=alumina-zirconia
en-keyword=specific surface area
kn-keyword=specific surface area
en-keyword=true density
kn-keyword=true density
en-keyword=selective reduction of nitrogen oxide
kn-keyword=selective reduction of nitrogen oxide
END