Tokushima University / Educator and Researcher Directory --- Takegawa, Emi

Personal Web Page

https://researchmap.jp/u7u (researchmap)

Field of Study

○	Life sciences [Biomaterials]

Subject of Study

Book / Paper

Academic Paper (Judged Full Paper):

1.	Yuta Matsuki, Hiroko Sato, N Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : Effect of immersion in NaCl solution on the electrical conductivity and the reduction of the shear bond strength of resin-modifi ed glass-ionomer-cements after current application, Dental Materials Journal, Vol.41, No.3, 487-494, 2022. (Tokushima University Institutional Repository) ● Metadata: 117038 (Link to Publication Site) ● Publication site (DOI): 10.4012/dmj.2021-322 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35264547 ● Search Scopus @ Elsevier (PMID): 35264547 ● Search Scopus @ Elsevier (DOI): 10.4012/dmj.2021-322 (Tokushima University Institutional Repository: 117038, DOI: 10.4012/dmj.2021-322, PubMed: 35264547)
2.	Muneyuki Yoshimura, Emi Takegawa, Kazumitsu Sekine, Shinya Horiuchi, Eiji Tanaka and Kenichi Hamada : Volume Magnetic Susceptibility Estimation of α- and β-Phases in Titanium Alloys for Biomedical Applications., Journal of Oral Health and Biosciences, Vol.34, No.2, 34-39, 2022. (Summary) Metallic medical devices in the human body cause serious artifacts in magnetic resonance imaging owing to the volume magnetic susceptibility (χν) mismatch between the device and tissue around the device. To reduce artifacts, medical devices produced from alloys with χν values of approximately -9 × 10-6 are required. Controlling the phase constitution is a basic technique used to control the χν value of an alloy, and the χν value of each phase is a fundamental property. In this study, an α+β-type Ti alloy and two β-type Ti alloys were investigated. The estimated χν values of the α-phase of the alloys were similar to or smaller than that of pure Ti. In contrast, the estimated χν values of the β-phase of the alloys were larger than that of pure Ti. Since the χν value of pure Ti is much larger than -9 × 10-6, the χν values of the β-phases suggested that increasing the volume fraction of the β-phase was not appropriate for producing a Ti alloy with a lower χν value. (Keyword) Volume magnetic susceptibility / Phase constitution / Heat treatment / Ti-6Al-4V alloy / Ti-Mo alloy (Tokushima University Institutional Repository) ● Metadata: 116783 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.34.2_34 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20738/johb.34.2_34 (Tokushima University Institutional Repository: 116783, DOI: 10.20738/johb.34.2_34)
3.	Hiroko Sato, Yuta Matsuki, N Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : Effects of water immersion on shear bond strength reduction after current application of resin-modified glass-ionomer-cements containing and not containing an ionic liquid., Dental Materials Journal, Vol.40, No.1, 35-43, 2021. (Summary) The enhancement in the bonding strength of advanced dental cements has enabled long-lasting dental restorations. However, the high bonding strength can cause difficulty in removing these restorations. Therefore, "smart" dental cements with simultaneous strong bonding and easy on-demand debonding ability are required. A resin-modified glass-ionomer-cement (RMGIC) with an ionic liquid (IL) has demonstrated significant reduction in the bonding strength with current application (CA). This research investigates the effect of immersion in distilled water on the electric conductivity and bonding strength of RMGIC with and without an IL and CA. The RMGIC without the IL exhibited significant electric conductivity after immersion, and a significant decrease in bonding strength with CA. In comparison, the electric conductivity after immersion and the decrease in bonding strength with CA were greater for RMGIC with the IL. Thus, the feasibility of smart dental cements capable of electrically debonding-on-demand is indicated. (Keyword) Electric conductivity / Glass-ionomer-cement / Ionic-liquid / Shear bonding strength / Smart adhesive (Tokushima University Institutional Repository) ● Metadata: 114725 (Link to Publication Site) ● Publication site (DOI): 10.4012/dmj.2019-371 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 32779608 ● Search Scopus @ Elsevier (PMID): 32779608 ● Search Scopus @ Elsevier (DOI): 10.4012/dmj.2019-371 (Tokushima University Institutional Repository: 114725, DOI: 10.4012/dmj.2019-371, PubMed: 32779608)
4.	Yeeun Kim, Jiyon Be, Emi Takegawa, Kazumitsu Sekine, Fumiaki Kawano and Kenichi Hamada : Effects of zirconia additives on β-tricalcium-phosphate cement for high strength and high injectability, Ceramics International, Vol.47, No.2, 1882-1890, 2021. (Tokushima University Institutional Repository) ● Metadata: 116056 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.ceramint.2020.09.017 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.ceramint.2020.09.017 (Tokushima University Institutional Repository: 116056, DOI: 10.1016/j.ceramint.2020.09.017)
5.	Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : Electrical shear bonding strength reduction of resin-modified glass-ionomer-cement containing ionic-liquid concept and validation of a smart dental cement debonding-on-demand, Dental Materials Journal, Vol.37, No.5, 768-774, 2018. (Summary) With improvement of bonding strength of recent dental cement, it is difficult nowadays to remove restorations without excessive force or vibration to tooth, occasionally resulting in damage of dentin, enamel, and dental root. Therefore, "smart" dental cement indicating strong bonding and easy debonding-on-demand simultaneously is required. In this research, resin-modified glass-ionomer-cement containing an ionic-liquid, tris(2-hydroxyethyl)methylammonium methylsulfate was produced, and the shear bonding strength before and after direct current application were evaluated. The prototype cement containing 15 to 20 mass% ionic-liquid indicated simultaneously no significant reduction of shear bonding strength from that of the original cement not containing ionic-liquid, and significant reduction of bonding strength to approximately 20% of that of the original cement after direct current application of more than 2 mmC/mm. The prototype cement in this research demonstrated that the concept of smart dental cement electrically debonding-on-demand is feasible. (Tokushima University Institutional Repository) ● Metadata: 111728 (Link to Publication Site) ● Publication site (DOI): 10.4012/dmj.2017-361 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 29848856 ● Summary page in Scopus @ Elsevier: 2-s2.0-85056973389 (Tokushima University Institutional Repository: 111728, DOI: 10.4012/dmj.2017-361, PubMed: 29848856, Elsevier: Scopus)
6.	Shihoko Inui, Emi Takegawa and Kenichi Hamada : Volume magnetic susceptibility design and hardness of Au Ta alloys and Au Nb alloys for MRI-compatible biomedical applications, Biomedical Physics & Engineering Express, Vol.3, No.1, 015025, 2017. (Tokushima University Institutional Repository) ● Metadata: 110121 (Link to Publication Site) ● Publication site (DOI): 10.1088/2057-1976/aa5449 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/2057-1976/aa5449 (Tokushima University Institutional Repository: 110121, DOI: 10.1088/2057-1976/aa5449)
7.	Eiichi Honda, Kenichi Hamada, 倉林亨, Emi Takegawa and Midori Yoshida : MRI対応生体内金属の開発, The Journal of the Japanese Society of Magnetic Applications in Dentistry, Vol.22, No.1, 41-48, 2013.
8.	Emi Takegawa, Shihoko Inui, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : Magnetic susceptibility and hardness of Au-xPt-yNb alloys for biomedical applications, Acta Biomaterialia, Vol.9, 8449-8453, 2013. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.actbio.2013.05.028 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.actbio.2013.05.028 (DOI: 10.1016/j.actbio.2013.05.028)

Academic Paper (Unrefereed Paper):

1.	Yeeun Kim, Emi Takegawa, Kazumitsu Sekine, Fumiaki Kawano and Kenichi Hamada : Effects of poloxamer additives on strength, injectability, and shape stability of beta-tricalcium phospEffects of poloxamer additives on strength, injectability, and shape stability of beta-tricalcium phosphate cement modified using ball-millinghate cement modified using ball-milling, Journal of the Mechanical Behavior of Biomedical Materials, 2022. (Summary) A new CPC was developed in this study using a β-TCP powder mechano-chemically modified by ball-milling. The prototype CPC exhibits excellent fluidity for easy injection into bone defects; however, there is a risk of leakage from the defects immediately after implantation due to its high fluidity. The addition of poloxamer, an inverse thermoresponsive gelling agent, into CPC optimizes the fluidity. At lower temperatures, it forms a sol and maintains good injectability, whereas at the human body temperature, it transforms to a gel, reducing the fluidity and risk of leakage. In this study, the effects of poloxamer addition of 3, 5, and 10 mass% on the injectability, shape stability, and strength of the prototype CPC were evaluated. The calculated injectability of the prototype CPC pastes containing three different poloxamer contents was higher than that of the CPC paste without poloxamer for 15 min at 37 °C. Furthermore, the shape stability immediately after injection of the three CPC pastes with poloxamer was higher than that of the CPC paste without poloxamer. After 1 week of storage at 37 °C, the compressive strength and diametral tensile strength of the CPC compacts containing 10 mass% poloxamer were similar to those of the CPC compact without poloxamer. Additionally, the CPC compacts containing 10 mass% poloxamer exhibited clear plastic deformation after fracture. These results indicate that the addition of poloxamer to the prototype CPC could reduce the risk of leakage from bone defects and improve the fracture toughness with maintaining the injectability and strength. (Tokushima University Institutional Repository) ● Metadata: 116796 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmbbm.2022.105182 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmbbm.2022.105182 (Tokushima University Institutional Repository: 116796, DOI: 10.1016/j.jmbbm.2022.105182)

Review, Commentary:

1.	Emi Takegawa and Kenichi Hamada : MRIアーチファクトフリー生体医療用合金の開発, The Journal of Japanese Society for Dental Materials and Devices, Vol.41, No.3, 215-218, Sep. 2022. (Keyword) MRI / アーチファクトフリー / 生体医療用合金 / 金合金 / 非磁性 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520856826673551488 (CiNii: 1520856826673551488)
2.	Kenichi Hamada and Emi Takegawa : MRIでアーチファクトを生じない生体医療用合金の開発, バイオマテリアル-生体材料-, Vol.34, No.1, 50-53, Jan. 2016. (Tokushima University Institutional Repository) ● Metadata: 112474 (Tokushima University Institutional Repository: 112474)

Proceeding of International Conference:

1.	Kenichi Hamada, Yuta Matsuki, Hiroko Sato, 梶本昇, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine and Eiji Tanaka : DEVELOPMENT OF SMART DENTAL CEMENT ELECTRICALLY DEBONDABLE ON-DEMAND: EFFECTS OF IMMERSION IN SODIUM CHLORIDE SOLUTION, Biomaterials International 2023, Sapporo, Jul. 2023.
2.	Kenichi Hamada, Yuta Matsuki, Hiroko Sato, 梶本昇, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine and Eiji Tanaka : Effects of Immersion in NaCl Solutions on Shear Bond Strength and Electric Conductivity of a Dental Cement, The 7th International Symposium on Biomedical Engineering (ISBE2022), Nov. 2022.
3.	Kenichi Hamada, Yuta Matsuki, Hiroko Sato, 梶本昇, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine and Eiji Tanaka : Shear bond strength change due to current application of resin-modified glass-ionomer-cement immersed in NaCl solutions, International Dental Materials Congress 2022, Nov. 2022.
4.	Kenichi Hamada, Hiroko Sato, Noboru Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine and Eiji Tanaka : Change of electric and mechanical properties of ionic-liquid containing ``smart'' resin-modified glass-ionomer-cement with water immersion, Thermec' 2021, Wien, Jun. 2021.
5.	Kenichi Hamada, Hiroko Sato, Noboru Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine and Eiji Tanaka : Water immersion effects on bonding strength of dental cement containing ionic-liquid, 11th World Biomaterials Congress, Glasgow, Dec. 2020.
6.	Yuta Matsuki, Hiroko Sato, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : Electrolytic solution immersion effects on novel glass ionomer cement -Change of electric conductivity and shear bonding reduction after current application-, 9th IOC, Yokohama, Oct. 2020.
7.	Hiroko Sato, Yuta Matsuki, Noboru Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : Water immersion effects on novel glass ionomer cement containing ionic liquid Changes of electric effects on novel glass ionomer cement containing ionic liquid-., 9th IOC, Yokohama, Oct. 2020.
8.	Kenichi Hamada, Emi Takegawa and Eiichi Honda : Effects of Zr addition on properties of Au-Nb-Zr alloys for MRI artefact-free biomedical applications, Thermec' 2018, Paris, Jul. 2018.
9.	Kenichi Hamada, Emi Takegawa and Eiichi Honda : Effects of aging time and temperature on magnetic susceptibility of Au Nb alloys for biomedical applications, 28th European Conference on Biomaterials (ESB2017), Athens, Sep. 2017.
10.	Shihoko Inui, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Correlation between magnetic susceptibility and phase constitution of Au Nb alloys for MRI artifact-free biomedical applications, International Dental Materials Congress 2016, Bali, Nov. 2016.
11.	Shihoko Inui, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Effects of aging-temperature on volume-magnetic-susceptibility of Au-12Nb and Au-15Nb alloys., 94th General Session and Exhibition of the International Association for Dental Research, Seoul, Jun. 2016.
12.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : Development of an electrically-debondable smart dental cement, Thermec' 2016, Graz, Jun. 2016.
13.	Inui Shihoko, Kenichi Hamada, Emi Takegawa and Eiichi Honda : Control of magnetic susceptibility of Au-Nb alloys for MRI Artifact-free Biomedical Applications, Thermec' 2016, Graz, May 2016.
14.	Kenichi Hamada, Inui Shihoko, Emi Takegawa and Eiichi Honda : Effects of Ti addition on properties of Au-Nb-Ti alloys for MRI artifact-free biomedical applications, Thermec' 2016, Graz, May 2016.
15.	Kenichi Hamada, Inui Shihoko, Emi Takegawa and Eiichi Honda : MRI Artifact-free Au-Nb-Ti alloy of High Hardness for Biomedical Applications, 10th World Biomaterials Congress, Montreal, May 2016.
16.	INUI Shihoko, Kenichi Hamada, Emi Takegawa and Eiichi Honda : Effects of heat treatment on magnetic susceptibility and hardness of Au-Nb alloys for MRI Artifact-free Biomedical Applications, 10th World Biomaterials Congress, Montreal, May 2016.
17.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : Magnetic Susceptibility and Hardness of Alloys of Au and Group V Elements (Nb, Ta) for MRI Artifact-free Biomedical Applications, 27th European Conference on Biomaterials (ESB2015), Cracow, Aug. 2015.
18.	INUI Shihoko, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Magnetic Susceptibility and Hardness of Alloys of Au and Group IV Elements (Ti, Zr) for MRI Artifact-free Biomedical Applications, 27th European Conference on Biomaterials (ESB2015), Cracow, Aug. 2015.
19.	Shihoko Inui, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Magnetic Susceptibility of Au-X (X = Nb, Ta, Ti, Zr) Alloys for MRI Artifact-Free Biomedical Applications, Gold 2015, Cardiff, Jul. 2015.
20.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : Magnetic Susceptibility and Vickers Hardness of Au-Pd-X Ternary Alloys for MRI Artifact-Free Biomedical Applications, Gold 2015, Cardiff, Jul. 2015.
21.	Kenichi Hamada, Emi Takegawa, INUI Shihoko and Eiichi Honda : MRI artifact reduction of aneurysm clip made of non-magnetic Au 7Nb 5Pt alloy for biomedical applications, Materials Today Asia 2014, Hong Kong, Dec. 2014.
22.	INUI Shihoko, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Volume Magnetic Susceptibility of Au-X (X = Nb, Ta, Ti) Alloys for MRI Artifact Free Biomedical Applications, Materials Today Asia 2014, Hong Kong, Dec. 2014.
23.	INUI Shihoko, Emi Takegawa, Eiichi Honda and Kenichi Hamada : Dynamic Hardness Evaluation of Two Phases of Au xPt 8Nb Alloys for MRI-artifact-free Biomedical Devices, 26th European Conference on Biomaterials (ESB2014), Liverpool, Sep. 2014.
24.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : Magnetic-resonance-imaging Artifact-free Au 7Nb 5Pt Alloy: Mechanical Properties of Wire, Thermec (International Conference on Processing & Manufacturing of Advanced Materials) 2013, Las Vegas, Dec. 2013.
25.	Kenichi Hamada, Emi Takegawa, INUI Shihoko and Eiichi Honda : Tensile Properties of Au 7Nb 5Pt and Au 8Nb 5Pt Alloy Wire for Use in MRI-Artifact-Free Biomedical Devices, 25th European Conference on Biomaterials (ESB2013), Madrid, Sep. 2013.
26.	Emi Takegawa, INUI Shihoko, Kenichi Hamada, Eiichi Honda and Fumiaki Kawano : MRI-compatible Au-Pd-based Ternary Alloy for Biomedical Applications, 25th European Conference on Biomaterials (ESB2013), Madrid, Sep. 2013.
27.	Emi Takegawa, INUI Shihoko, Kenichi Hamada, Eiichi Honda, Kenzo Asaoka and Fumiaki Kawano : Microstructure of Magnetic-resonance-imaging Compatible Au-xPt-8Nb Alloy, 91st General Session and Exhibition of the International Association for Dental Research, Seattle, Mar. 2013.
28.	Kenichi Hamada, INUI Shihoko, Emi Takegawa, Eiichi Honda and Kenzo Asaoka : Magnetic-resonance-imaging Artifact-free Au 8Nb 5Pt Alloy: Mechanical Properties of Wire, 91st General Session and Exhibition of the International Association for Dental Research, Seattle, Mar. 2013.
29.	INUI Shihoko, IDA Yumika, Emi Takegawa, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : Properties of Au Pd Alloy for Magnetic-resonance-imaging Compatible Biomedical Devices, 91st General Session and Exhibition of the International Association for Dental Research, Seattle, Mar. 2013.
30.	Emi Takegawa, Shihoko Inui, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : MRI Compatible Au-Pt-Nb Alloy for Biomedical Applications, Thermec (International Conference on Processing & Manufacturing of Advanced Materials) 2011, Québec City, Aug. 2011.
31.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Kikuji Yamashita, Fumiaki Kawano and Kenzo Asaoka : In vitro and consistency evaluation of strontium apatite bone cement., 3rd International Symposium on Surface and Interface of Biomaterials, Sapporo, Jul. 2011.
32.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Fumiaki Kawano and Kenzo Asaoka : In vitro and in vivo evaluation of strontium-substituted apatite bone cement, International Dental Materials Congress 2011, Seoul, May 2011.
33.	INUI Shihoko, Emi Takegawa, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : Castability of MRI Compatible Au Alloy for Biomedical Application, International Dental Materials Congress 2011, Seoul, May 2011.
34.	Emi Takegawa, Shihoko Inui, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : Microstructure of MRI Compatible Au-Pt-8Nb Alloy for Biomedical Application, International Dental Materials Congress 2011, Seoul, May 2011.
35.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Fumiaki Kawano, Kikuji Yamashita and Kenzo Asaoka : Biocompatibility Evaluation of Strontium-substituted Apatite Bone Cement, 88th General Session and Exhibition of the International Association for Dental Research, Barcelona, Jul. 2010.
36.	Emi Takegawa, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : Magnetic-susceptibility of Au-Pt-Nb Alloy for Magnetic-resonance-imaging Compatible Biomedical-devices, 88th General Session and Exhibition of the International Association for Dental Research, Barcelona, Jul. 2010.
37.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Kikuji Yamashita, Fumiaki Kawano and Kenzo Asaoka : Biocompatibility evaluation of Strontium-substituted apatite cement, 3rd Hiroshima Conference on Education and Science in Dentistry, Vol.3, No.1, 83, Hiroshima, Nov. 2009.

Proceeding of Domestic Conference:

1.	和田涼平, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : レジン添加型グラスアイオノマーセメントの接着強度に印加電圧の変動が与える影響, 第82回日本歯科理工学会学術講演会, Apr. 2024. (Keyword) スマートセメント / レジンセメント / 接着 / 剥離
2.	Kazumitsu Sekine, Emi Takegawa, Yeeun Kim, 花輪茂己 and Kenichi Hamada : 抗菌性と細胞足場効果の向上を期待したチタン表面修飾の研究, 令和5年度日本歯科理工学会近畿·中四国地方会セミナー, Oct. 2023.
3.	Kenichi Hamada, Yeeun Kim, Emi Takegawa, Kazumitsu Sekine and Fumiaki Kawano : 高注入性と高流出抵抗が両立するリン酸カルシウムセメントの開発, 日本セラミックス協会第35回秋季シンポジウム, Sep. 2022.
4.	Kenichi Hamada, Yuta Matsuki, Hiroko Sato, 梶本昇, Emi Takegawa, Shinya Horiuchi and Kazumitsu Sekine : 食塩水に浸漬したレジン添加型グラスアイオノマーセメントの電気伝導性と通電後の接着強度低下量の変化, 第79回日本歯科理工学会大会, May 2022.
5.	Noboru Kajimoto, Taira Sato, Michito Maruta, Emi Takegawa, Kazumitsu Sekine, Kenichi Hamada and Kanji Tsuru : 通電剥離型歯科用セメントの開発その6:イオン液体が細胞毒性に及ぼす影響, 第77回日本歯科理工学会大会, Apr. 2021.
6.	Kazumitsu Sekine, Emi Takegawa and Kenichi Hamada : 組織封鎖性を担うチタン足場材の検討, 第76回日本歯科理工学会大会, Feb. 2021.
7.	Hiroko Sato, Yuta Matsuki, Noboru Kajimoto, Emi Takegawa, Shinya Horiuchi, Kazumitsu Sekine, Eiji Tanaka and Kenichi Hamada : 通電するとグラスアイオノマーセメントの接着強度は低下する, 徳島県歯科医学大会, 28, Feb. 2020.
8.	Fujita Sohshi, Hiroko Sato, Emi Takegawa and Kenichi Hamada : 水に浸けたグラスアイオノマーセメントの通電特性, 四国歯学会第55回例会, Sep. 2019.
9.	Emi Takegawa, Eiichi Honda and Kenichi Hamada : Au-Nb合金へのTi,Zr添加による磁化率，硬さへの影響, 第40回日本バイオマテリアル学会大会, Nov. 2018.
10.	Kajimoto Noboru, Takaaki Arahira, Michihito Maruta, Emi Takegawa, Kazumitsu Sekine, Kenichi Hamada and Kanji Tsuru : スマートに剥離可能な新規歯科用セメントの開発:剥離メカニズムの考察, 第37回日本接着歯学会, Oct. 2018.
11.	Noboru Kajimoto, Takaaki Arahira, Michihito Maruta, Emi Takegawa, Kazumitsu Sekine, Kenichi Hamada and Kanji Tsuru : 通電剥離型歯科用セメントの開発その5:通電がセメントに与える影響, 第72回日本歯科理工学会学術講演会, Oct. 2018.
12.	Kanako Sano, Eri Tsuyuguchi, Emi Takegawa and Kenichi Hamada : Au-Nb合金にZrを添加したときの硬さへの影響, 四国歯学会第52回例会, Mar. 2018.
13.	Emi Takegawa, Ayako Kodama, Eiichi Honda and Kenichi Hamada : Au-Nb 合金の熱処理条件が磁化率に与える影響, 第39回日本バイオマテリアル学会大会, Nov. 2017.
14.	Kouji Yoshida, Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電剥離型歯科用セメント(EDDC)の開発 ∼アミノ酸由来イオン液体を用いた検証∼, 四国歯学会第51回例会, Jun. 2017.
15.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電剥離型歯科用セメントの開発その 4:破壊様式の観察, 第69回日本歯科理工学会学術講演会, Apr. 2017.
16.	Ayako Kodama, Shihoko Inui, Emi Takegawa and Kenichi Hamada : Au–Nb合金の時効熱処理の順序が磁化率に与える影響, 四国歯学会第50回例会, Mar. 2017.
17.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : 生体医療用Au–Nb合金の時効熱処理条件が磁化率に及ぼす影響, 日本金属学会2017年春季大会, Mar. 2017.
18.	Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 任意に除去可能な歯科用セメントの開発, 第5回日本バイオマテリアル学会中四国ブロックシンポジウム, Jan. 2017.
19.	Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電により剥離可能な歯科用セメントの開発, 第23回日本歯科医学会総会, Oct. 2016.
20.	Kenichi Hamada, Noboru Kajimoto, Emi Takegawa and Kazumitsu Sekine : スマート・デンタル・マテリアル -スマート材料・構造の歯科応用-, 日本セラミックス協会第29回秋季シンポジウム, Sep. 2016.
21.	Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電剥離型歯科用セメントの開発:通電剥離に関連する因子の考察, 日本歯科理工学会近畿中四国地方会夏期セミナー, Aug. 2016.
22.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電剥離型歯科用セメントの開発その3:被着体による剥離特性の差異, 第67回日本歯科理工学会学術講演会, Apr. 2016.
23.	Emi Takegawa, Shihoko Inui, Eiichi Honda and Kenichi Hamada : 非磁性Au合金で試作した医用デバイスのMRIアーチファクト, 第4回日本バイオマテリアル学会中四国シンポジウム, Feb. 2016.
24.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 接着力を制御できる歯科用セメントの開発, 第4回日本バイオマテリアル学会中四国シンポジウム, Feb. 2016.
25.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : MRI適合生体医療用Au-Nb-Ti合金の開発, 第37回日本バイオマテリアル学会大会, Nov. 2015.
26.	Shihoko Inui, Emi Takegawa and Kenichi Hamada : 生体医療用Au-Nb-Ti 合金の磁化率と硬さ, 第66回日本歯科理工学会学術講演会, Oct. 2015.
27.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 通電剥離型歯科用セメントの開発その2: 通電条件の影響, 第66回日本歯科理工学会学術講演会, Oct. 2015.
28.	Kajimoto Noboru, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 強固に接着し容易に除去できる歯科用スマートセメントの開発, 第31回「歯科医学を中心とした総合的な研究を推進する集い」, Sep. 2015.
29.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : 生体医療用Au-Nb-Ti合金の磁化率と硬さに及ぼす時効熱処理の影響, 日本金属学会2015年秋季大会, Sep. 2015.
30.	Noboru Kajimoto, Emi Takegawa, Kazumitsu Sekine and Kenichi Hamada : 工業用解体性接着技術の歯科分野への応用, 日本歯科理工学会近畿中四国地方会夏期セミナー, Aug. 2015.
31.	Shihoko Inui, Emi Takegawa and Kenichi Hamada : 生体医療用Au-Nb合金の磁化率へのAu2Nb析出の影響, 第65回日本歯科理工学会学術講演会, Apr. 2015.
32.	Kenichi Hamada, Shihoko Inui, Emi Takegawa and Eiichi Honda : 生体医療用非磁性Au-Nb合金の時効析出物が磁化率に及ぼす影響, 日本金属学会2015年春季大会, Mar. 2015.
33.	Inui Shihoko, Emi Takegawa and Kenichi Hamada : 生体医療用非磁性Au-Nb合金の磁化率, 第3回日本バイオマテリアル学会中四国シンポジウム, Jan. 2015.
34.	Kenichi Hamada, Inui Shihoko, Emi Takegawa and Eiichi Honda : Au–X合金(X = Nb, Ta, Ti, Zr)の磁化率と機械的特性の組成依存性, 第36回日本バイオマテリアル学会大会, Nov. 2014.
35.	Inui Shihoko, Emi Takegawa, Kenichi Hamada and Eiichi Honda : MRIアーチファクトフリー生体医療用合金の開発 -Au-xPt-8Nb 合金の微細組織と機械的特性-, 第52回日本人工臓器学会大会, Oct. 2014.
36.	Shihoko Inui, Emi Takegawa and Kenichi Hamada : 生体医療用Au2元合金の磁化率の組成依存性, 第64回日本歯科理工学会学術講演会, Oct. 2014.
37.	Kenichi Hamada, Emi Takegawa, Shihoko Inui and Eiichi Honda : 生体医療用Au-X合金の磁化率, 日本金属学会2014年秋季大会, Sep. 2014.
38.	Emi Takegawa, Shihoko Inui and Kenichi Hamada : Au-xPt-8Nb合金の各相の硬さが合金全体の硬さに及ぼす影響, 第63回日本歯科理工学会学術講演会, Apr. 2014.
39.	Kenichi Hamada, Emi Takegawa, Shihoko Inui and Eiichi Honda : 生体用非磁性Au-Pd基合金の特性, 日本金属学会2014年春季大会, Mar. 2014.
40.	Tomoko Kimura, Kazumi Ozaki, Hiromichi Yumoto, Keiji Murakami, Chieko Sugawara, Chihiro Shinohara, Emi Takegawa, Yoichiro Miyake, Takashi Matsuo and Fumiaki Kawano : Roles of scrA gene in pathogenicity of Streptococcus mutans, 第6回日本総合歯科学会総会・学術大会, 38, Nov. 2013.
41.	Shihoko Inui, Emi Takegawa, Kenichi Hamada and Kenzo Asaoka : 医療用非磁性Au-Pd基合金の開発:Au-Pd合金の磁化率と機械的特性, 第60回日本歯科理工学会学術講演会, Oct. 2012.
42.	Emi Takegawa, Shihoko Inui, Kenichi Hamada, Fumiaki Kawano and Kenzo Asaoka : Au-Pt合金の磁化率への組成，加工および熱処理の影響, 第60回日本歯科理工学会学術講演会, Oct. 2012.
43.	Emi Takegawa, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : 生体用非磁性 AuPtNb 合金への第4元素の添加, 第33回日本バイオマテリアル学会大会, Nov. 2011.
44.	Kenichi Hamada, Emi Takegawa, Eiichi Honda and Kenzo Asaoka : 生体用非磁性 AuPtNb 合金を構成する 2 相の特性, 日本金属学会2011年秋季大会, Nov. 2011.
45.	Emi Takegawa, Shihoko Inui, Kenichi Hamada and Kenzo Asaoka : 非磁性Au-Pt-8Nb合金の鋳造性評価, 第58回日本歯科理工学会学術講演会, Oct. 2011.
46.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Kikuji Yamashita, Fumiaki Kawano and Kenzo Asaoka : Bone conductivity and regeneration evaluation of Strontium-substituted apatite bone cement., 第50回日本生体医工学会大会, Apr. 2011.
47.	Emi Takegawa, Kenichi Hamada, Eiichi Honda and Kenzo Asaoka : 生体用非磁性AuPtNb合金の磁化率, 第32回日本バイオマテリアル学会大会, Nov. 2010.
48.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Fumiaki Kawano, Kikuji Yamashita and Kenzo Asaoka : ストロンチウム添加型アパタイトセメントの骨置換能評価, 第48回日本人工臓器学会大会, Vol.39, No.2, 131, Nov. 2010.
49.	Kazumitsu Sekine, Kenichi Hamada, Emi Takegawa, Kikuji Yamashita, Fumiaki Kawano and Kenzo Asaoka : ストロンチウム(Sr)含有型アパタイトセメントのin vitro及びin vivo評価, 第56回日本歯科理工学会学術講演会, Vol.29, No.5, 385, Oct. 2010.
50.	Emi Takegawa, Kenichi Hamada and Kenzo Asaoka : 生体用非磁性AuPtNb合金の体積磁化率と機械的特性, 第56回日本歯科理工学会学術講演会, Oct. 2010.
51.	Kenichi Hamada, Emi Takegawa, Eiichi Honda and Kenzo Asaoka : 生体用非磁性AuPtNb合金の体積磁化率, 日本金属学会2010年秋季大会, Sep. 2010.
52.	Kenichi Hamada, Emi Takegawa, Eiichi Honda and Kenzo Asaoka : MRIアーチファクトフリー生体用AuPtX合金の特性, 第31回日本バイオマテリアル学会大会, Nov. 2009.
53.	Emi Takegawa, Kenichi Hamada and Kenzo Asaoka : MRIアーチファクトフリー生体用合金の研究(第2報)-AuPt基合金の機械的特性-, 第54回日本歯科理工学会学術講演会, Oct. 2009.
54.	Kenichi Hamada, Emi Takegawa, Eiichi Honda and Kenzo Asaoka : 生体用非磁性AuPtX合金の機械的特性, 日本金属学会2009年秋季大会, Sep. 2009.

Patent:

1.	大久保道正, 後藤研滋, 田中邦弘, 白石康次郎, 嶋邦弘, 加藤佑弥, Kenichi Hamada, Eiichi Honda and Emi Takegawa : 医療用Au-Pt-Pd合金, 2019-175204 (Sep. 2019), (Dec. 2020), 6811466.
2.	大久保道正, 後藤研滋, 田中邦弘, 白石康次郎, 嶋邦弘, 加藤佑弥, Kenichi Hamada, Eiichi Honda and Emi Takegawa : 医療用Au-Pt-Pd合金, 2019-175208 (Sep. 2019), (Nov. 2020), 6789528.
3.	大久保道正, 後藤研滋, 田中邦弘, 白石康次郎, 嶋邦弘, 加藤佑弥, Kenichi Hamada, Eiichi Honda and Emi Takegawa : 医療用Au-Pt-Pd合金, PCT/JP2020/035903 (Sep. 2019), .
4.	大久保道正, 後藤研滋, 田中邦弘, 白石康次郎, 嶋邦弘, 加藤佑弥, Kenichi Hamada, Eiichi Honda and Emi Takegawa : 医療用Au-Pt-Pd合金, PCT/JP2020/035902 (Sep. 2019), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

歯科用レジンセメントの通電剥離は万能か－導電性の向上と維持－ (Project/Area Number: 22K10035 )
Application of smart dental cement debonding-on-demand to implants (Project/Area Number: 19K19054 )
Development of MRI artifact free beta-Ti alloy (Project/Area Number: 17H06904 )
Development of MRI artifact free Au-Pd-Pt-Ti dental alloy (Project/Area Number: 15H06441 )
Development of MRI compatible Au-Pd-Pt alloy (Project/Area Number: 24800045 )
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Assistant Professor : Takegawa, Emi

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)