A5018107538- biodegradable polymer synthesis and properties
- Microbial Metabolic Engineering and Bioproduction
- Carbon dioxide utilization in catalysis
- Biofuel production and bioconversion
- Biopolymer Synthesis and Applications
- Enzyme Catalysis and Immobilization
- Microbial Fuel Cells and Bioremediation
- Microplastics and Plastic Pollution
- Amino Acid Enzymes and Metabolism
- Enzyme Production and Characterization
- Advanced Polymer Synthesis and Characterization
- Electrochemical sensors and biosensors
- Supercapacitor Materials and Fabrication
- Probiotics and Fermented Foods
- Microbial Metabolites in Food Biotechnology
- Microwave-Assisted Synthesis and Applications
- Chemical Synthesis and Analysis
- Click Chemistry and Applications
- Analytical Chemistry and Chromatography
- Enzyme Structure and Function
- Pancreatitis Pathology and Treatment
- Microbial Natural Products and Biosynthesis
- Synthesis and properties of polymers
- Fungal Biology and Applications
- Protein purification and stability
Kyoto Institute of Technology
2015-2024
Biobase (Germany)
2014-2020
Graduate School USA
2020
Nagoya City University
1996-2015
Hillingdon Hospital
2015
Kawasaki City College of Nursing
2011
Mitsubishi Chemical Group Science and Technology Research Center (Japan)
2009
Kyushu University
2006
Toyota Motor Corporation (Switzerland)
2006
Waseda University
2005
Sclerosing cholangitis (SC) with autoimmune pancreatitis (AIP) is similar to primary sclerosing (PSC) regard cholangiographic findings, but only the former responds well steroid therapy. This report concentrates on clinical differences between these diseases.The presenting complaint or abnormality, associated disease, pancreatic changes, treatment, and course were studied for several cases of PSC (n = 27) SC AIP 20).SC as a diagnosis occurs abruptly obstructive jaundice compared where often...
Summary We propose a novel recycling system for municipal food waste that combines fermentation and chemical processes to produce high‐quality poly‐L‐lactate (PLLA) biodegradable plastics. The process consists of removal endogenous D, L‐lactic acid from minced by propionibacterium, under semisolid conditions, purification via butyl esterification, polymerization LL‐lactide. total design the enables high yield PLLA with optical activity (i.e., proportion isomers) all materials produced at...
This paper reports a new synthesis of biobased polymers by using itaconic anhydride (IAn) and lactic acid (LA) as renewable starting materials. Poly(lactic acid) (PLA)-graft copolymers were synthesized via two approaches. First, the macromonomer approach utilized IAn for Sn-catalyzed PLA-containing macromonomers (IAn-PLA Macro). The was radically copolymerized with n-butyl methacrylate (BMA), acrylate (BA), methyl (MMA), ethyl (EMA) to give efficiently graft (PLA-Graft copolymer (I))...
Biodegradable polymers having good toughness were used as compatibilizers for the polymer blend system of poly(lactic acid) (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) to replace inorganic or non- degradable compatibilizers. such succinate) (PBS), adipate- co-terephthalate) (PBAT), poly(hydroxybutylate-co-valerate) (PHBV) have capability mix with PLA. Polymer blends PLA/PBAT (70:30) added 1, 3 5 phr PBS, PBSA PHBV. It was found that thermal property slightly decreased, melting...
ABSTRACT The effect of polyethylene glycol (PEG) on the mechanical and thermal properties poly(lactic acid) (PLA)/poly(butylene succinate) (PBS) blends was examined. Overall, it found that PEG acted as an effective plasticizer for PLA phase in these microphase‐separated blends, increasing elongation at break all decreasing T g phase. Significant effects other were also observed. tensile strength Young's modulus both decreased with content blends. In contrast, increased addition PEG,...
An Escherichia coli system was engineered for the heterologous production of itaconic acid via expression cis-aconitate decarboxylase gene (cad), and then maximal levels produced by E. were evaluated. Expression cad in grown Luria-Bertani (LB) medium without glucose a test tube resulted 0.07 g/L after 78 h at 20°C. To increase production, recombinants constructed inactivating isocitrate dehydrogenase (icd) and/or lyase (aceA). inactivation icd 0.35 h, whereas aceA had no effect on...
For developing broader application of biobased polymers, graft copolymers and comb polymers having poly(lactic acid) (PLA) side chains have been synthesized by using a macromonomer technique. PLA macromonomers (MMm) methacryloyl polymerizable group with different chain length an average m = 4, 6, 8, 12, 18, 30 were prepared via ring-opening polymerization l-lactide hydroxyethyl methacrylate (HEMA) initiator catalyzed Sn(Oct)(2). Radical behaviors these examined. copolymerization MMm (m 8),...
We report the clinical findings and molecular identification of ocular
Although endoscopic mucosal resection (EMR) for early gastric cancer (EGC) without ulceration or scarring has been very popular in Japan and thought to be beneficial, curability by EMR is still lower than that surgical resection. We investigated patients whose EGCs were resected endoscopically order identify the factors affecting EMR.We retrospectively 256 EGC lesions (251 patients) which subjected between 1989 1998 with respect patient profile, macroscopic type, location, maximum diameter...
The theory and application of production recycling poly(lactic acid) are reviewed. Poly(L-lactic (PLLA) under microwave irradiation can make the molecular weight higher than that conventional heating. However, it is limited by discharge in sample tube. In contrast, depolymerization oligo(L-lactic (OLLA) successfully achieved irradiation. Hydrolysis alcoholysis PLLA also faster those Moreover, racemization lactic acid during hydrolysis be reduced lactate small both with without
Abstract Enzymatic degradation of polylactic acid is studied experimentally and analytically. Gel permeation chromatography profiles obtained before after the enzymatic (PLA) were introduced into analysis based on a mathematical model. Previously developed techniques successfully adapted to an initial value problem consisting endogenous depolymerization model condition, inverse determine rate for which solution also satisfies final condition. Those problems solved numerically numerical...