|
Affiliation |
IWATE University Faculty of Science and Engineering Department of Science and Engineering Chemistry Course |
|
Position |
Associate Professor |
|
Laboratory Address |
〒0208551 4-3-5 Ueda, Morioka |
|
Laboratory Phone number |
+81-19-621-6332 |
|
Laboratory Fax number |
+81-19-621-6333 |
AISAWA Sumio
|
|
|
Graduating School 【 display / non-display 】
-
-1997.03
Iwate University Faculty of Engineering Other
Graduate School 【 display / non-display 】
-
-1999.03
Iwate University Graduate School, Division of Engineering Master's Course Completed
Campus Career 【 display / non-display 】
-
2016.09-Now
IWATE University Faculty of Science and Engineering Department of Chemistry and Biological Science Studies in Chemistry Associate Professor [Duty]
-
2016.09-Now
IWATE University Center for Hiraizumi Studies Associate Professor [Concurrently]
-
2012.05-2016.08
IWATE University Center for Hiraizumi Studies Assistant Professor [Concurrently]
-
2007.04-2016.08
IWATE University Abolition organization Frontier Materials and Function Engineering Assistant Professor [Duty]
-
2004.04-2007.03
IWATE University Graduate School of Engineering Frontier Materials and Function Engineering Nano Materials Engineering Research Assistant [Duty]
Research Areas 【 display / non-display 】
-
Nanotechnology/Materials / Inorganic compounds and inorganic materials chemistry
Course Subject 【 display / non-display 】
-
2004
Undergraduate Research
-
2004
Seminar in Chemical Engineering
-
2004
Chemical Engineering Laboratory Ⅰ
-
2004
Chemical Engineering Exercise Ⅰ
-
2004
Chemistry Laboratory
Research Career 【 display / non-display 】
-
Synthesis and Characterization of Organic Compound/Inorganic Layered Material Nanohybrid
Periods of research：
1999.04-NowKeywords : Layered Double Hydroxide
Style of Research： Collaboration in Japan
Research Program： (not selected)
-
Synthesis and Characterization of Biomolecule/Inorganic Layered Material Nanohybrid
Periods of research：
1999.04-NowKeywords : Layered Materials
Style of Research： Collaboration in Japan
Research Program： (not selected)
Published Papers 【 display / non-display 】
-
Nanoscale chirality generated in zinc(II) orthophosphate clusters: evidence by vibrational circular dichroism
Sumio Aisawa, Nami Horiguchi, Chika Chida, Jing Sang, Hidetoshi Hirahara, Akihiko Yamagishi and Hisako Sato
Nanoscale ( The Royal Society of Chemistry ) 16 20589 - 20595 2024.10 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
Layered zinc(II) hydroxides (LZH) intercalating the deprotonated forms of R-(−) or S-(+)-1,1’-binaphthyl-2,2’-diyl hydrogenphosphate (denoted as R- or S-BNDHPH, respectively) were prepared from Zn(NO3)2 atpH 5 and 60 °C by the mixing method. The obtained hybrid compounds (denoted as R- or S-BNDHP−/LZH, respectively) were heated from room temperature up to 800 °C under nitrogen atmosphere. According to the thermal gravimetric/differential thermal analysis measurements, hydroxyl groups were dehydrated at 270–400 °C, followed by the decomposition of organic components at 420–600 °C. X-ray diffraction patterns and scanning electron microscopy images indicated that the final products were a mixture of α-Zn3(PO4)2, ZnO crystals and non-crystalline zinc(II) orthophosphates. Vibrational circular dichroism (VCD) spectra were recorded before and after calcination. Before calcination, R- or S-BNDHP−/LZH exhibited VCD peaks assigned to intercalated R- or S-BNDHP−. The calcined products exhibited several VCD peaks in the range of 900–1200 cm−1, maintaining the mirror-image relationship between R-BNDHP−/LZH and S-BNDHP−/LZH used as starting materials. The observed peaks were assigned to the PvO (symmetric), –POO−, and PvO (asymmetric) stretching vibrations of the PO43− groups. According to theoretical simulations, the observed VCD activity can be rationalised in terms of vibrational coupling between two PO43− groups in a generated chiral zinc(II) orthophosphate cluster.
-
Biosynthesis of poly(glycolate-ran-3-hydroxybutyrate)s with different glycolate molar fractions from ethylene glycol
Munenori Hayashida, Yosuke Ota, Masayoshi Honda, Sumio Aisawa, Yuji Shibasaki, Hideki Abe, Miwa Yamada
Polymer Degradation and Stability ( Elsevier B.V. ) 240 111502/1 - 111502/10 2028.06 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
Glycolate (GL)-based polyhydroxyalkanoates have potential for biomedical and other applications owing to their high hydrodegradability. Here, we established a biosynthetic pathway for the synthesis of random copolymer poly(glycolate-ran-3-hydroxybutyrate) [P(GL-ran-3HB)] from ethylene glycol (EG) contained in industrial wastes in recombinant Escherichia coli. Recombinant E. coli expressing an engineered polyhydroxyalkanoate (PHA) synthase (PhaC) capable of polymerizing GL, two enzymes providing 3HB monomer (PhaA and PhaB), and three enzymes providing GL monomer from EG (FucO, AldA, and PCT) in a medium containing EG and xylose, produced a GL molar fraction in P(GL-ran-3HB) of 0.24±0.003 mol % maximum. Therefore, we split this method into GL- and polymer synthesis, which enabled the increase of the GL molar fraction from 4.5 to 49.5 mol % in P(GL-ran-3HB)s by initial concentrations of EG in the medium; this indicates that EGs derived from industrial waste have a potential for use in P(GL-ran-3HB) synthesis with a variety of GL molar fractions. P(GL-ran-3HB) biosynthesis with a GL molar fraction exceeding 17 mol % was reported for the first time in this study. Polymer characterization revealed that incorporation of the GL unit slightly increased glass transition temperature and decreased melting temperature and molecular weight of P(GL-ran-3HB). A decrease in crystallinity with increasing GL molar fraction was observed, particularly for polymers with GL molar fractions above 46 mol %, which were almost amorphous. Our findings contribute to the expanding application of EG as a new feedstock for PHAs and broadening the applications of novel PHA copolymers.
-
Plasma-Assisted Surface Functionalization for High-Strength, Thermally Stable Copper Plating on Cycloolefin Polymer Films
Jing Sang, Sumio Aisawa, Chika Chida, Dexin Chen, Di Wang, Hidetoshi Hirahara
ACS Omega ( American Chemical Sosiety ) 2025.08 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
-
Enhancing mechanism of nanodiamonds on tribological behavior and antiwear properties in Ag composite coatings during current-carrying friction
Jiamin Fang, Dexin Chen, Yuting Liu, Peng Zhang, Jing Sang, Hidetoshi Hirahara, Sumio Aisawa, Wei Li
Materials Chemistry and Physics ( Elsevier B.V. ) 2025.05 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
-
Electrical corrosion behavior and erosion mechanism of conductive hard films during current-carrying friction
Mingchong Lu, Jiahua Zhang, Peng Zhang, Qiwei Wang, Jing Sang, Hidetoshi Hirahara, Sumio Aisawa, Dexin Chen
Diamond and Related Materials 153 2025.01 [Refereed]
Academic Journal Multiple authorship
Review Papers 【 display / non-display 】
-
Production of Eco-nanomaterials Using Anionic Clay (Layered Double Hydroxide)
49 ( 9 ) 693 - 703 2012.09
Academic Journal
-
Fabrication of biomolecules and drugs nanocarrier from layered double hydroxides
Journal of the Society of Inorganic Materials, Japan 21 ( 370 ) 176 - 182 2014.05
Academic Journal
Presentations 【 display / non-display 】
-
Synthesis and conformation study of phenylalanine and tartaric acid intercalated Zn-Al layered double hydroxide
Poster (General) H. Ida, S. Aisawa, H. Hirahara, J. Sang, H. Sato
2021.10 -
Synthesis and particle-size control of anti-cancer drug intercalated layered double hydroxide by coprecipitation method
Poster (General) N. Fujii, S. Aisawa, J. Sang, H. Hirahara
2021.10 -
Synthesis and characterization of layered double hydroxide from hydrothermal reaction of magnesium hydroxide
Poster (General)
2020.09 -
Application of Solid-State Vibrational Circular Dichroism for Layered Double Hydroxides: Intercalation Structure of Phenylalanine
Poster (General) SATO, Hisako; TAKIMOTO, Kazuyoshi; KAWAMURA, Izuru; AISAWA, Sumio
2020.03 -
Intercalation behavior of methotrexate into Mg-Al layered double hydroxide
Poster (General)
2018.09
Academic Awards Received 【 display / non-display 】
-
2024.09.15
-
2024.09.04
-
2023.11.03
-
2023.09.27
-
2023.09.10
Association Memberships 【 display / non-display 】
-
2002.01
The Society of Inorganic Materials