检索结果-内蒙古大学图书馆

11th World Conference on Titanium, Ti-2007

作者： Hagihara, Koji Nakano, Takayoshi Sonoura, Akihiro Watanabe, Katsuya Umakoshi, Yukichi Niinomi, Mitsuo Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University Osaka Suita565-0871 Japan Department of Biomaterials Science Institute for Materials Research Tohoku University Sendai980-8577 Japan

ISBN: (纸本)9784889034066

β-type Ti-Nb-Ta-Zr alloys have been receiving much attention for biomedical applications due to their superior properties such as low cyto-toxicity and low modulus. The deformation behavior of these alloys is known to strongly depend on the stability of the bcc phase, which governs the selection of operative deformation modes. In this study, we focus on three alloys of Ti-25Nb-10Ta-5Zr, Ti-29Nb-13Ta-4.6Zr and Ti-35Nb-10Ta-5Zr (mass.%), with different Nb content, which is closely related to the bcc-phase stability. The deformation behavior, especially the tension-compression cyclic deformation behavior, is investigated using single crystals grown by the optical floating zone method. The dominant operative deformation modes are determined as α" stress-induced martensite (SIM), {332} twinning, and {101} slip in Ti-25Nb-10Ta-5Zr, Ti-29Nb-13Ta-4.6Zr and Ti-35Nb-10Ta-5Zr, respectively. The differences in operative deformation modes lead to significant variation in cyclic deformation behaviors such as yield stress, shape of hysteresis loops and cyclic hardening curves. © Ti-2007 - Proceedings of the 11th World Conference on Titanium. All Rights Reserved.

关键词： Titanium alloys

来源：评论

学校读者我要写书评

暂无评论

Catalytic surface modification of roll-milled poly(Ε-caprolactone) biaxially stretched to ultra-thin dimension

引用

materials science and engineering C 2007年第2期27卷 299-303页

作者： Foo, H.L. Taniguchi, A. Yu, H. Okano, T. Teoh, S.H. Graduate Programme in Bioengineering National University of Singapore Singapore Bionic Materials Technology Group Biomaterials Center National Institute for Materials Science Japan Department of Physiology National University of Singapore Singapore Institute of Biomedical Engineering Tokyo Women's Medical University Japan Department of Mechanical Engineering National University of Singapore Singapore

A novel roll-milling polymer processing technique along with biaxial stretching was used to fabricate 10 μm thick poly(Ε-caprolactone) films. A less invasive collagen surface modification was used, involving a reaction between corona-preactivated membranes and ferrous-containing acrylic acid solution at the low temperature of 42 °C. Successful modified films were characterized by Toluidine Blue O assay and X-ray photoelectron spectroscopy. Human umbilical vein endothelial cells also showed both higher proliferation rate and differentiated cobblestone morphology on these collagen-immobilized substrates. © 2006 Elsevier B.V. All rights reserved.

关键词： Collagen

来源：评论

学校读者我要写书评

暂无评论

Bioactive coatings by vaterite deposition on polymer substrates of different composition and morphology

引用

materials science and engineering C 2007年第4期27卷 741-745页

作者： Maeda, H. Maquet, V. Chen, Q.Z. Kasuga, T. Jawad, H. Boccaccini, A.R. Department of Materials Science and Engineering Graduate School of Engineering Nagoya Institute of Technology Gokiso-cho Showa-ku Nagoya 466-8555 Japan and Interfaculty Centre for Biomaterials University of Liege B-4000 Liege Belgium Department of Materials Imperial College London Prince Consort Road London SW7 2BP United Kingdom

Calcium carbonate particles of vaterite crystalline structure were deposited on the surface of polymer substrates of different chemistry and morphology by a slurry dipping technique using ethanol as a solvent. Artificial prosthetic fibrous ligaments (polyester-based) and poly(Ε-caprolactone) (PCL) 3-dimensional foams of high porosity were selected as model polymer substrates. The vaterite coated polymers were immersed in simulated body fluid to induce the formation of homogeneous hydroxycarbonate apatite (HCA) layers on the polymer surfaces, which were detected by SEM and XRD. The method offers great potential for inducing bioactive behaviour to normally bioinert polymers. In this investigation, fibrous structures for orthopaedic ligaments and 3-D porous tissue engineering scaffolds were considered and the application of the vaterite coating technique demonstrated. © 2006 Elsevier B.V. All rights reserved.

关键词： Biodegradable polymers

来源：评论

学校读者我要写书评

暂无评论

A novel collagen sponge for cartilage tissue engineering

A novel collagen sponge for cartilage tissue engineering

引用

作者： Chen, Guoping Akahane, Daisuke Kawazoe, Naoki Shirasaki, Yoshio Tanaka, Junzo Yamamoto, Katsuyuki Tateishi, Tateishi Biomaterials Center National Institute for Materials Science 1-1 Namiki Tsukuba Japan Division of Bioengineering and Bioinformatics Graduate School of Information Science and Technology Hokkaido University Japan Institute for Human and Science Biomedical Engineering Advanced Industrial Science and Technology Japan Department of Metallurgy and Ceramics Science Graduate School of Science and Engineering Tokyo Institute of Technology Japan

A novel collagen sponge that can protect cell leakage during cell seeding was developed by wrapping all the surfaces except the upside of a collagen sponge with membrane that has pores smaller than cell. The collagen sponge was used for three-dimensional culture of human bone marrow-derived mesenchymal stem cells (MSCs). The cells adhered to the collagen, and proliferated to fill the spaces in the sponge. The cell seeding efficiency was higher than 95%. The MSCs cultured in the collagen sponge in the chondrogenic induction medium supplemented with TGF-3 and BMP6 expressed genes encoding type II collagen, SOX9 and aggrecan. HE staining indicated the round morphology of differentiated cells and the extracelluler matrices were positively stained by safranin O and toluidine blue. Type II collagen and cartilage proteoglycan were detected by immunostaining with anti-type II collagen and anti-cartilage proteoglycan. These results suggest the chondrogenic differentiation of MSCs. The collagen sponge facilitated cell seeding and chondrogenic differentiation of MSCs, and will be useful for cartilage tissue engineering.

关键词： Collagen

来源：评论

学校读者我要写书评

暂无评论

Study on sintering and hardness of 316L stainless steel reinforced with tantalum carbide

Study on sintering and hardness of 316L stainless steel rein...

引用

European Powder Metallurgy Congress and Exhibition, Euro PM 2007

作者： Gomes, U.U. Soares, S.R.S. Furukava, M. Oliveira, L.A. Souza, C.P. Federal University of Rio Grande do Norte - UFRN Materials Science and Engineering Pos-Graduate Program Campus Universitário 59072-970 Natal RN Brazil

ISBN: (纸本)9781899072293

The present study investigates the behavior of the sintering and micro-hardness of stainless steel samples reinforced with nanoparticles of tantalum carbide (TaC). The main aim was to identify the effect of the dispersion of carbides over the microstructure and the mechanical properties of the compacts. Samples of AISI 316L pure and with the addition of 3% wt TaC were cold compacted in a cylindrical steel die (Ø = 5.0 mm) at 700 MPa and sintered in a vacuum furnace. The heating rate and sintering temperature used were 20°C/min and 1290°C respectively during 60 minutes. The results show that the carbides distribution increases the sintering kinetics and micro-hardness of the samples. We have been able to produce sintered samples with a relative density between 91.0% and 93.0%. The highest micro-hardness values using a 10N load were 115 HV for the reinforced sample and 76 HV for the sample without reinforcement.

关键词： Sintering

来源：评论

学校读者我要写书评

暂无评论

Gene expression profile of osteoblast-like cells on calcium phosphate biomaterials

Gene expression profile of osteoblast-like cells on calcium ...

引用

作者： Takemura, Taro Hongsong, Fan Ikoma, Toshiyuki Tanaka, Junzo Hanagata, Nobutaka Biomaterials Center National Institute for Materials Science 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan Engineering Research Center in Biomaterials Sichuan University Biomaterials Building 29# Wangjiang Road Chengdu 610064 China Department of Metallurgy and Ceramics Science Graduate School of Enguneering Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan

Gene expression profile of osteoblast-like cells cultured on dense disk materials and porous materials of calcium phosphate ceramics was constructed from DNA microarray analyses. The profile revealed that gene expression patterns of porous materials were significantly different from those of dense disk materials. The porous materials had a capacity to induce expressions of genes involved in osteoblast differentiation, while dense disk materials regulated gene expressions related to osteoclastogenesis.

关键词： biomaterials

来源：评论

学校读者我要写书评

暂无评论

Mechanical loading-dependence of mRNA expressions of extracellular matrices of chondrocytes inoculated into elastomeric microporous poly(L-lactide-co- Ε-caprolactone) scaffold

Mechanical loading-dependence of mRNA expressions of extrace...

引用

作者： Xie, Jun Han, Zhiyi Kim, Soo Hyun Kim, Young Ha Matsuda, Takehisa Division of Biomedical Engineering Graduate School of Medicine Kyushu University Fukuoka Japan Department of Clinical Pharmacology Graduate School of Medicine Kyushu University Fukuoka Japan Biomaterials Research Center Korea Institute of Science and Technology Seoul Korea Republic of Department of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju Korea Republic of Genome Biomedical Engineering Laboratory Kanazawa Institute of Technology 3-1 Yasukaho Hakusan City Ishikawa 924-0838 Japan

The temporal response of young rabbit chondrocyte metabolism (including biosynthesis of extracellular matrix macromolecules such as collagen and aggrecan, both of which are essential components of normal cartilage tissue, and their messenger ribonucleic acid (mRNA) expression) in microporous elastomeric scaffolds made of poly(L-lactide-co-Ε-caprolactone) subjected to different compressive regimes (loading frequency, loading duration per cycle, loading period, and continuous or intermittent compression) were studied over a 6-day culture period at 10% of compressive strain. A continuous dynamic compression improved the production of sulfated glycosaminoglycan (S-GAG), most of which was released into the culture medium upon loading. High mRNA expression of type II collagen was exhibited at a frequency of 0.1 Hz. Little frequency dependency was observed for aggrecan. An intermittent loading (24-h cycle of loading and unloading) or short loading and unloading duration per cycle-compression regime maintained high levels of mRNA expression. This strongly suggests that well-controlled mechanical conditioning regimes may control the gene expression of key metabolic substances relevant to functional cartilage tissue while the degree of release of these substances into the culture medium is minimized. © Mary Ann Liebert, Inc.

关键词： RNA

来源：评论

学校读者我要写书评

暂无评论

Synchrotron X-ray scattering studies of star-shape polymers

Synchrotron X-ray scattering studies of star-shape polymers

引用

2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007

作者： Jin, S. Higashihara, T. Jin, K.S. Yoon, J. Heo, K. Kim, J. Kim, K.-W. Hirao, A. Ree, M. BK21 Program Polymer Research Institute Pohang University of Science and Technology Pohang 790-784 Korea Republic of Polymeric and Organic Materials Department Graduate School of Science and Engineering Tokyo Institute of Technology Tokyo 152-8552 Japan

Shapes and structures of star-polystyrenes bearing 6 to 57-arms were in detail investigated in good and theta solvents by small-angle X-ray scattering with synchrotron radiation sources.

ISBN: (纸本)1420063766

Shapes and structures of star-polystyrenes bearing 6 to 57-arms were in detail investigated in good and theta solvents by small-angle X-ray scattering with synchrotron radiation sources.

关键词： Polystyrenes

来源：评论

学校读者我要写书评

暂无评论

Abstracts for the 6th Congress of Asian Sleep Research Society

引用

Sleep and Biological Rhythms 2009年第4期7卷 A1-A49页

作者： Seog Ju Kim In Kyoon Lyoo Yu-Jin Lee Do-Un Jeong Hirohiko Kanai Masanori Ookubo Atsushi Yoshimura Masako Okawa Noto Yamada Takeshi Munezawa Yoshitaka Kaneita Yoneatsu Osaki Hideyuki Kanda Tadahiro Ohtsu Masumi Minowa Kenji Suzuki Susumu Hijuchi Hiroyuki Suzuki Takashi Ohida Takashi Abe Yoko Komada Shoichi Asaoka Yuichi Inoue Jin-Seong Lee Sang-Yong Cho Deependra Kumar Hruda N. Mallick Velayudhan M. Kumar Mahesh K. Kaushik Akihiro Karashima Noiihiro Katayama Mitsuyuki Nakao Ravindra P. Nagendra Sathiamma Sulekha Sathyaprabha T. Narasappa Pradhan Nityanadan Bindu M. Kutty M. Nirmala P. N. Ravindra Basavaraj Ramappa Tubaki T. N. Sathyaprabha D. Sudhakar G. S. Lavekar C. R. Chandrashekar Kazuyoshi Kitaoka Mika Shimizu Sachiko Chikahisa Kazuo Yoshizaki Hiroyoshi Sei Jong-Won Kim Misa Takegami Shin Yamazaki Yasuaki Hayashino Rei Ono Koji Otani Miho Sekiguchi Shinichi Konno Shunichi Fukuhara Antonia J. Jakobson Paul Fitzgerald Russell Conduit Xin Shirley Li Siu Ping Joyce Lam Wai Man Mandy Yu Yun Kwok Wing Kazue Okamoto-Mizuno Koh Mizuno Mituaki Yamamoto Shuichiro Shirakawa Hirokazu Doi Mikako Kato Kazuyuki Shinohara Masako Tamaki Shiori Matsuda Katsuo Yamazaki Tadao Hori Keiko Ogawa Kazumi Takahashi Kunio Kitahama Katuo Yamazaki Yoshimasa Koyama Kohei Shioda Yugo Ueda Yukiko Nakamura Clara Inoue Kazushige Goto Sunao Uchida Yuko Morita Yoshiko Honda Tohru Kodama Mari Hagihara Toru Nakajima Masato Saito Yoshihiko Koga Shinichiro Tanaka Hiroshi Yamadera Madoka Takahara Sachiko Suwa Minoru Onozuka Sadao Sato Fumiharu Togo Taiki Komatsu Takeshi Mitani Jongbae Choi Bin Zhang Taeko Sasai Hiromi Mitsubayashi Mitsuhiro Ohtsu Isao Hasegawa Tatsuya Ishii Akira Komori Asami Suzuki Yue Nakahara Mitsuyasu Hiroki Mariko Nakauma Nobuo Someya Tomomasa Ochiai Shouhei Komori Rayleigh Ping-Ying Chiang Zai-Ting Yeh Seong T. Kim Seung H. Yoon Jeong S. Kwon Jong H. Choi Hyung J. Ahn Youngsoo Kim Bolortuya Yunren Lichao Chen Radhika Basheer Robert W. Mccarley Robert E. Strecker Makoto Honda Tetsuaki Arai Miyuki Fukazawa Yutaka Honda Kuniaki T Department of Psychiatry Gachon University of Medicine and Science Incheon Republic of Korea Department of Psychiatry Seoul National University Seoul Republic of Korea Department of Neuropsychiatry and Center for Sleep and Chronobiology Seoul National University Hospital Seoul Republic of Korea Department of Neuropsychiatry Seoul National University Hospital Seoul Republic of Korea Seoul National University Hospital Seoul Republic of Korea Department of Psychiatry Shiga University of Medical Science Otsu Japan Division of Public Health Department of Social Medicine Nihon University School of Medicine Tokyo Japan Department of Public Health Nihon University School of Medicine Tokyo Japan Division of Environmental and Preventive Medicine Department of Social Medicine Faculty of Medicine Tottori University Yonago Japan Department of Hygiene and Preventive Medicine Fukushima Medical University Fukushima Japan Department of Public Health Showa University School of Medicine Tokyo Japan Faculty of Humanities Seitoku University Matsudo Japan Section on Behavioral Science Division of Clinical Research National Hospital Organization Kurihama Alcoholism Center Yokosuka Japan Department of Otolaryngology Second Hospital Fujita Health University Nagoya Japan National Hospital Organization Kurihama Alcoholism Center Kanagawa Japan Metropolitan Police Department Criminal Investigation Laboratory Tokyo Japan Japan Somnology Center Neuropsychiatrie Research Institute Tokyo Japan Department of Somnology Tokyo Medical University Tokyo Japan Japan Somnology Center Neuropsychiatric Research Institute Tokyo Japan Department of Somnology Tokyo Medical and Dental University Tokyo Japan Center for Sleep and Chronobiology Department of Psychiatry and Behavioral Science Seoul National University College of Medicine Seoul Republic of Korea Department of Psychiatry and Behavioral Science Center for Sleep and Chronobiology Seoul Republic of Korea Department of Physiology Al

来源：评论

学校读者我要写书评

暂无评论

A new implementation method of the reverse engineering algorithm to elucidate gene functional dependencies

IEEJ Transactions on Electronics, Information and Systems

引用

IEEJ Transactions on Electronics, Information and Systems 2007年第10期127卷 1712-1718+32页

作者： Inaoka, Hidenori Fukuoka, Yutaka Ueno, Akinori Kohane, Isaac S. Institute of Biomaterials and Biomedical Engineering Tokyo Medical and Dental University 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan School of Biomedical Science Tokyo Medical and Dental University 1-5-45 Yushima Bunkyo-ku Tokyo 113-8510 Japan Graduate School of Science and Engineering Tokyo Denki University Ishizaka Hatoyama-Cho Hiki-Gun Saitama 350-0394 Japan Informatics Program Childrens's Hospital Harvard Medical School Boston MA United States

Various clustering methods are applied to characterizing gene expression data from DNA microarrays. However, to elucidate functional dependencies of genes analysis of their associations is important. The REVerse engineering ALgorithm (REVEAL) was developed for analyzing the functional dependencies. Although the algorithm has been tested using binary models of genetic networks, it remains unclear how the method or similar technology will operate with systems of continuous variables. In this study, first, the REVEAL was examined using noisy, continuous data and the results suggested that its application to such data required considerable refinement of the algorithm. Then a new implementation method of REVEAL was proposed. This implementation method was tested through numerical experiments. The results of the simulations demonstrated the potential of the proposed method for extracting gene associations.

关键词： Reverse engineering

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：