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Masahiro Okada, Shoji Takeda, Mayo Uehira, Keiko Fujiwara, Naoyuki Mat ...
Session ID: 1P094
Published: 2012
Released on J-STAGE: March 28, 2012
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Hydroxyapatite is the main mineral of bones and teeth. Artificially synthesized hydroxyapatite has been extensively used in a variety of applications, such as biomaterials, ion exchangers, adsorbents, and catalysts by exploiting its biocompatibility and adsorbability with many compounds. In this presentation, the conditions for preparing transparent block consisting of low crystallized hydroxyapatite and liquid infiltration into the block will be reported. The hydroxyapatite transparent block should be useful for cell culture substrates because cells adhered on the hydroxyapatite transparent block can be directly observed with an optical microscope without any pretreatments.
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yuichi masuda, katsuya kato, akari hayashi
Session ID: 1P095
Published: 2012
Released on J-STAGE: March 28, 2012
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Formaldehyde dehydrogenase (FDH) immobilized on mesoporous silica (MPS) could not improve the thermal stability. In present study, we prepared the FDH immobilized on mesoporous zirconia (MPZ) for improvement of thermal stability. As a result, FDH immobilized on MPZ showed higher thermal stability and substrate affinity than that on MPS. The reason was considered to be highly biocompatible and mesoporous structure of MPZ. This material is applicable to DDS carriers for heat-sensitive drug and biomolecules.
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yuki kawachi, shin-ichi kugimiya, katsuya kato
Session ID: 1P096
Published: 2012
Released on J-STAGE: March 28, 2012
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Silica gel prepared by the sol-gel method was used acid (HCl) or base (NaOH) as a catalyst. Thus, this method was not suitable for encapsulating the
drugs and proteins (enzymes) in the gel. The present study shows the novel synthetic method of silica hydrogel by peptide-catalyzed reactions under
neutral conditions. Silica hydrogel obtained show highly water content and their dry gel has the mesoporous structure. These results indicate that
these gels are applicable for encapsulating various unstable drugs and biomolecules.
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yuki kawachi, shin-ichi kugimiya, katsuya kato
Session ID: 1P097
Published: 2012
Released on J-STAGE: March 28, 2012
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Sol-gel encapsulation has been proven to be an efficient method to stabilize the catalytic activity of enzyme for a long period. Lipase encapsulated in the silica gel prepared by standing at room temp. retained 55% of the activity compared to the free solution enzyme. In contrast, those by mixing at RT and standing at 4oC were significantly decreased their activities. These results indicate that enzyme activity encapsulated in the silica gel is greatly affected by the conditions for the sol-gel reactions.
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Chiharu Tamura, Makoto Sakurai, Katsuya Kato
Session ID: 1P098
Published: 2012
Released on J-STAGE: March 28, 2012
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Calcium phosphate has a high biocompatibility, thus, that is applied for artificial bone and gene delivery carrier. However, the development of high performance drug delivery system (DDS), having sensitivity to intracellular pH, has not yet been achieved. This study based on calcium phosphate-peptide composites. In previous study, we have been demonstrated that side chain of peptide greatly affected the surface potential and protein adsorption ability of calcium phosphate-peptide composites. The purpose of this study is the preparation of calcium phosphate combined with peptide and protein (or drug with a low MW) and is the evaluation of pH-sensitive drug release ability.
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Akinao Ii, Hirobumi Shibata, Kazuaki Hashimoto
Session ID: 1P099
Published: 2012
Released on J-STAGE: March 28, 2012
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Akimasa Kuramoto, Toshiki Miyazaki
Session ID: 1P100
Published: 2012
Released on J-STAGE: March 28, 2012
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Minori Mizumoto, Toshiisa Konishi, Michiyo Honda, Ken Ishii, Haruki Fu ...
Session ID: 1P101
Published: 2012
Released on J-STAGE: March 28, 2012
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Hydroxyapatite (HAp) has been used as bioceramics in which cement has received much attention. Handling feasibility and mechanical strength of cement are important factors for clinical application. In the present study, we used a chitosan as a mixing solution for cement fabrication to enhance those properties. As results, the cement specimen fabricated by injection had maximum compressive strength (22 MPa) in the case of the powder/liquid (P/L) ratio of 1/1.0 [g/cm3]. In vivo evaluation, the implanted cement specimens directly bonded with newly-formed bones. Thus, the chelate-setting HAp cement is promising for clinical application as injectable cement.
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Kimiyasu Ito, Masahiro Tomida, Katuya Kato
Session ID: 1P102
Published: 2012
Released on J-STAGE: March 28, 2012
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Xiupeng Wang, Xia Li, Kazuo Onuma, Atsuo Ito, Yu Sogo, Ayako Oyane
Session ID: 1P103
Published: 2012
Released on J-STAGE: March 28, 2012
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Motohiro Tagaya, Toshiyuki Ikoma, Tomohiko Yoshioka, Zhefeng Xu, Fujio ...
Session ID: 1P104
Published: 2012
Released on J-STAGE: March 28, 2012
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Takayuki Nonoyama, Takatoshi Kinoshita, Masahiro Higuchi, Kenji Nagata ...
Session ID: 1P105
Published: 2012
Released on J-STAGE: March 28, 2012
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Yoshifumi Aoi, Takashi Okubo
Session ID: 1P106
Published: 2012
Released on J-STAGE: March 28, 2012
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hirotaka maeda, tomoyuki tamura, akiko obata, toshihiro kasuga
Session ID: 1P107
Published: 2012
Released on J-STAGE: March 28, 2012
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Akimitsu Shimizu, Hirotaka Maeda, Toshihiro Kasuga, Katsuya Kato
Session ID: 1P108
Published: 2012
Released on J-STAGE: March 28, 2012
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It was reported that silicate ion enhances the proliferation and differentiation of osteoblastic cells through gene activation. Calcium ion has been proposed to be one of essential elements for the mineralization. Our strategy for drug release in addition to the gene activation is to utilize calcium silicate based materials as a matrix. However, the characteristic properties of calcium silicates for protein adsorption are unclear so far. In the present study, protein adsorption properties and their catalytic abilities on calcium silicates, such as tobermorite, xonotlite and wollastonite, were evaluated.
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Yuya Sano, Hirobumi Shibata, Taku Ogura, Kenichi Aburai, Hideki Sakai, ...
Session ID: 1P109
Published: 2012
Released on J-STAGE: March 28, 2012
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Daisuke Kondo, Tomohiko Yoshioka, Toshiyuki Ikoma, Kensuke Takamatsu, ...
Session ID: 1P110
Published: 2012
Released on J-STAGE: March 28, 2012
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Sho Yamamoto, Toru Nonami, Hiroko Hase, Kengo Maeda
Session ID: 1P111
Published: 2012
Released on J-STAGE: March 28, 2012
CONFERENCE PROCEEDINGS
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kay teraoka, katsuya kato
Session ID: 1P112
Published: 2012
Released on J-STAGE: March 28, 2012
CONFERENCE PROCEEDINGS
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Seiji Niijima, Kanako Mizuno
Session ID: 1P113
Published: 2012
Released on J-STAGE: March 28, 2012
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Low-temperature sintering porcelain bodies were obtained in Indiana feldspar-Nepheline syenite-Petalite-New Zealand kaolin system. However, the formability of this porcelain dough was low due to New Zealand kaolin which is inferior to other clay in plasticity. In this study, the effects of substitution Gairome clay and/or Kibushi clay for New Zealand kaolin on the sintering behavior and formability of this porcelain dough were investigated.
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Keiji Kusumoto, Toyohiko Sugiyama
Session ID: 1P114
Published: 2012
Released on J-STAGE: March 28, 2012
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Mineharu Tsukada, Masoto Wakamura, Toshihisa Anazawa, Cooray Nawalage ...
Session ID: 1P115
Published: 2012
Released on J-STAGE: March 28, 2012
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Mineharu Tsukada, Masato Wakamura, Toshihisa Anazawa, Cooray Nawalage ...
Session ID: 1P116
Published: 2012
Released on J-STAGE: March 28, 2012
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Naoya Sasaki, Takeshi Toyoda, kazuichi Kitagawa, Hiroyuki Tabata
Session ID: 1P117
Published: 2012
Released on J-STAGE: March 28, 2012
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Yutaro Nakano, Tomomi Kosaka, Kiminori Sato
Session ID: 1P118
Published: 2012
Released on J-STAGE: March 28, 2012
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Sakae KATO, Taiji MATSUMOTO, Kenichi MATSUMOTO, Takeshi KAWASHIMA, Tat ...
Session ID: 1P119
Published: 2012
Released on J-STAGE: March 28, 2012
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Yujiro Watanabe, Hirohisa Yamada, Toshiyuki Ikoma, Junzo Tanaka, Yu Ko ...
Session ID: 1P120
Published: 2012
Released on J-STAGE: March 28, 2012
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Eri Ichikawa, Ryuichi Takabayashi, Takeshi Okutani
Session ID: 1P121
Published: 2012
Released on J-STAGE: March 28, 2012
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Huihui Li, Shu Yin, Tsugio Sato
Session ID: 1P122
Published: 2012
Released on J-STAGE: March 28, 2012
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The advances in photocatalysis based on the coupling of nitrogen-doped titania (TiO2-xNy) with CaAl2O4:(Eu, Nd) long afterglow phosphor was investigated. CaAl2O4:(Eu,Nd)/TiO2-xNy composite sample showed persistent catalytic ability for degradation of acetaldehyde in the darkness after irradiating with a black lamp, while the photocatalytic activity of CaAl2O4:(Eu,Nd)/TiO2 (P25) composite immediately disappeared turning off the light.
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Tomomi Utsumi, Takeshi Okutani, Mitsuru Ohnishi
Session ID: 1P123
Published: 2012
Released on J-STAGE: March 28, 2012
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Keitaro TEZUKA, Yuto KIKUCHI, Yue Jin SHAN, Hideo IMOTO
Session ID: 1P124
Published: 2012
Released on J-STAGE: March 28, 2012
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Hikaru Kawarazaki, Yoshikazu Suzuki, Susumu Tohno
Session ID: 1P125
Published: 2012
Released on J-STAGE: March 28, 2012
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Elecrtrospray pyrolysis i.e. combination of electrospray and in-flight thermal treatment, has attracted much attention as a preparation method of functional ceramic particles. We report the processing detail of spherical TiO2 nano- and micro particles by electrospray pyrolysis method. In order to obtain desired particle size, the distance between capillary tip and furnace was a key factor contributing to droplet breakup before reaching furnace. Photocatalytic activity of the produced TiO2 particles was evaluated by methylene blue decomposition in aqueous solution and compared with that of commercially available TiO2 particles (P25).
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Adil Guljekre, Eri Ichikawa, Takeshi Okutani
Session ID: 1P126
Published: 2012
Released on J-STAGE: March 28, 2012
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Satoshi Tanaka, Yoshihiro Nagasawa, Keizo Uematsu
Session ID: 1P127
Published: 2012
Released on J-STAGE: March 28, 2012
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Yukiaki Ohno, Koji Tomita, Takaaki Taniguchi, Toshihiro Kogure, Ken-ic ...
Session ID: 1P128
Published: 2012
Released on J-STAGE: March 28, 2012
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Yukihiro Komatsubara, Ken-ichi Katsumata, Nobuhiro Matsushita, Kiyoshi ...
Session ID: 1P129
Published: 2012
Released on J-STAGE: March 28, 2012
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Gaku Tsuchibuchi, Toru Wakihara, Junichi Tatami, Katsutoshi Komeya, Ta ...
Session ID: 1P130
Published: 2012
Released on J-STAGE: March 28, 2012
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Masaya Amimoto, Takeshi Kimura, Masaaki Haneda, Masakkuni Ozawa
Session ID: 1P131
Published: 2012
Released on J-STAGE: March 28, 2012
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Kei Fujimoto, Masaaki Haneda, Masakuni Ozawa
Session ID: 1P132
Published: 2012
Released on J-STAGE: March 28, 2012
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Jin Li, Takashi Shirai, Masayoshi Fuji
Session ID: 1P133
Published: 2012
Released on J-STAGE: March 28, 2012
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Nanostructured SiC have been fabricated by pyrolysis of rice husks (RHs) in argon atmosphere. XRD patterns and FTIR spectra indicate that all the silica contained in RHs reacted to form SiC when pyrolyzed at 1600 degree centigree for 2h.The SiC obtained on the bodies of pyrolyzed rice husks(RHs) were mainly composed of nanoparticles having diameters of 70-200nm. Whiskers were obtained on the epidermis and graphite crucible inner epidermis. Nanostructured SiC obtained by this method showed good blue light emission properties. Furthermore, the SiC whiskers obtained have a better optical performance.
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Kannichi Araki, Masakuni Ozawa
Session ID: 1P134
Published: 2012
Released on J-STAGE: March 28, 2012
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Hiroki Yuzuriha, Kaneyasu Maruyama, Masaaki Haneda, Masakuni Ozawa
Session ID: 1P135
Published: 2012
Released on J-STAGE: March 28, 2012
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Kazutaka Hashimoto, Kazunori Teramoto, Toshikazu Nishide
Session ID: 1P136
Published: 2012
Released on J-STAGE: March 28, 2012
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YOSUKE TAKAHASHI, HIROYUKI IWAI, YASUNORI ANDO, SUMIHITO SAGO
Session ID: 1P137
Published: 2012
Released on J-STAGE: March 28, 2012
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Shinya Suzuki, Masaru Miyayama
Session ID: 1P138
Published: 2012
Released on J-STAGE: March 28, 2012
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Feng Dang, Yuya Oaki, Eiji Hosono, Haoshen Zhou, Hiroaki Imai
Session ID: 1P139
Published: 2012
Released on J-STAGE: March 28, 2012
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Keita Goto, Tsuguto Fukunaga, Yuta Fujii, Yumiko Ikebe, Eriko Ban
Session ID: 1P140
Published: 2012
Released on J-STAGE: March 28, 2012
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Hiroshi Yahiro, Yukari Emoto, Tohru Kineri, Masakatu Fujimoto, Hideo M ...
Session ID: 1P141
Published: 2012
Released on J-STAGE: March 28, 2012
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Pt nanopartiles supported tungsten oxide powder (Pt/WO3 powder) prepared by sol-gel process. We try to morphological control of Pt/WO3 powders. Pt/WO3 powders were investigated by TG-DTA, XRD, FT-IR, FE-SEM and BET method.
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Yuta Higashi, Shintaro Yabui, Kei-ichiro Murai, Toshihiro Moriga, Masa ...
Session ID: 1P142
Published: 2012
Released on J-STAGE: March 28, 2012
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La3+-Doped strontium titanates are reported to be one of candidate materials for interconnects of SOFCs. A high temperature heat-treatment is required to obtain firing density of the compacts more than 94% as the interconnect. Soft-chemical techniques such as a citric-gel method are often applied to promote the densification because powders obtained are very fine. However some RP (Ruddlesden-Popper) phases as the second phase appeared in the La-SrTiO3 samples even after fired 1600C. In this study, we chose TAS-FINE and TTIP as titanium sources for the citric-gel method, and the effect of the difference of starting materials on appearance of RP phases was examined.
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Toru Taguchi, Shigeru Itoh, Kenjiro Fujimoto
Session ID: 1P143
Published: 2012
Released on J-STAGE: March 28, 2012
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