Hiroyuki Kono
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View article: Facile and Additive-Free Synthesis of Chitosan-Catechol Adhesives with Enhanced Adhesive Strength: Performance Evaluation for Wood and Skin Binding
Facile and Additive-Free Synthesis of Chitosan-Catechol Adhesives with Enhanced Adhesive Strength: Performance Evaluation for Wood and Skin Binding Open
Composite materials, which include chitosan and catechol derivatives, are promising bioadhesives that are inspired by natural adhesive biomolecules in mussels. Although adhesives based on the composite of chitosan and catechol have been ex…
View article: Real‐World Outcomes of the Initial Clip Selection for Transcatheter Edge‐to‐Edge Repair Using the MitraClip G4 From the Optimized Catheter Valvular Intervention‐Mitral Registry
Real‐World Outcomes of the Initial Clip Selection for Transcatheter Edge‐to‐Edge Repair Using the MitraClip G4 From the Optimized Catheter Valvular Intervention‐Mitral Registry Open
Background The association of outcomes with initial clip selection has not been investigated in patients undergoing transcatheter edge‐to‐edge repair with the MitraClip G4. Methods We analyzed 2257 patients receiving the MitraClip G4 accor…
View article: Clinical and microbiological effects of a propolis toothpaste in patients with periodontitis under supportive periodontal therapy: a randomized double-blind clinical trial
Clinical and microbiological effects of a propolis toothpaste in patients with periodontitis under supportive periodontal therapy: a randomized double-blind clinical trial Open
View article: Thermoresponsive hydrogelation of N-acetyl chitohexaose: Gelation mechanism and application in controlled protein release
Thermoresponsive hydrogelation of N-acetyl chitohexaose: Gelation mechanism and application in controlled protein release Open
Chitin is a polysaccharide composed of N-acetylglucosamine units that form highly crystalline structures in biological systems; however, the precise mechanism underlying its self-assembly in aqueous environments remains unclear. In this st…
View article: Nano-Fibrillated Bacterial Cellulose Nanofiber Surface Modification with EDTA for the Effective Removal of Heavy Metal Ions in Aqueous Solutions
Nano-Fibrillated Bacterial Cellulose Nanofiber Surface Modification with EDTA for the Effective Removal of Heavy Metal Ions in Aqueous Solutions Open
Nano-fibrillated bacterial cellulose (NFBC) has very long fibers (>17 μm) with diameters of approximately 20 nm. Hence, they have a very high aspect ratio and surface area. The high specific surface area of NFBC can potentially be utilized…
View article: <i>Mallotus japonicus</i> extract suppresses ferroptosis by inhibiting transferrin receptor-mediated ferrous ion uptake in human tubular epithelial HK2 cells
<i>Mallotus japonicus</i> extract suppresses ferroptosis by inhibiting transferrin receptor-mediated ferrous ion uptake in human tubular epithelial HK2 cells Open
Iron (Fe) is the most abundant metal ion in the body, but its excess accumulation causes Fe2+-dependent and lipid peroxidation-dependent cell death (ferroptosis) via the production of reactive oxygen species (ROS). It is thought…
View article: Oral Administration of Heat-Killed <i>Fructobacillus Fructosus</i> FMO-85 Alleviates the Reduction in Tear Fluid in a Stress-Induced Dry Eye Mouse Model
Oral Administration of Heat-Killed <i>Fructobacillus Fructosus</i> FMO-85 Alleviates the Reduction in Tear Fluid in a Stress-Induced Dry Eye Mouse Model Open
View article: Thermoresponsive Hydrogelation of N-Acetyl Chitohexaose: Gelation Mechanism and Application in Controlled Protein Release
Thermoresponsive Hydrogelation of N-Acetyl Chitohexaose: Gelation Mechanism and Application in Controlled Protein Release Open
View article: Synthesis of Multivalent Glycoside-Immobilized Carboxymethyl Cellulose Nanohydrogel Particles with Superadsorption Ability for Lectins
Synthesis of Multivalent Glycoside-Immobilized Carboxymethyl Cellulose Nanohydrogel Particles with Superadsorption Ability for Lectins Open
Carboxymethyl cellulose (CMC) is a water-soluble cellulose derivative that is nontoxic, biocompatible, biodegradable, and nonallergenic. As developing an adsorbent material for carbohydrate-binding proteins is challenging, we aimed to synt…
View article: Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications
Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications Open
Oxidized sucrose (OS) reacts with amino-group-containing polysaccharides, including chitosan, without catalyst, resulting in hydrogels entirely composed of carbohydrates. The presence of imine bonds with low structural stabilities and unre…
View article: Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications
Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications Open
Oxidized sucrose (OS) reacts with amino group-containing polysaccharides, including chitosan, without catalyst, resulting in hydrogels entirely composed of carbohydrates. The presence of imine bonds with low structural stabilities and unre…
View article: Preparation and Characterization of Carboxymethylated Aureobasidium Pullulans Β-(1→3, 1→6)-Glucan and its in Vitro Antioxidant Activity
Preparation and Characterization of Carboxymethylated Aureobasidium Pullulans Β-(1→3, 1→6)-Glucan and its in Vitro Antioxidant Activity Open
View article: Detailed Structural Characterization of Oxidized Sucrose and Its Application in the Fully Carbohydrate-Based Preparation of a Hydrogel from Carboxymethyl Chitosan
Detailed Structural Characterization of Oxidized Sucrose and Its Application in the Fully Carbohydrate-Based Preparation of a Hydrogel from Carboxymethyl Chitosan Open
Oxidized sucrose (OS) is a bio-based cross-linking agent with excellent biological safety and environmental non-toxicity. However, the precise structure of OS has not been elucidated owing to its structural complexity and low purity. Accor…
View article: Propylene Polymerization Performance with Ziegler-Natta Catalysts Combined with U-Donor and T01 Donor as External Donor
Propylene Polymerization Performance with Ziegler-Natta Catalysts Combined with U-Donor and T01 Donor as External Donor Open
In propylene (C3) polymerization with Ziegler-Natta catalyst, not only internal donor but also external donor is very important to make isotactic polypropylene (PP) with higher yield. Most propylene-based polymers have been commercially pr…
View article: The Anatomical Position of Graf’s Standard Plane and Its Relationship With Pelvic Morphology: A Computed Tomography-Based Study
The Anatomical Position of Graf’s Standard Plane and Its Relationship With Pelvic Morphology: A Computed Tomography-Based Study Open
View article: Clinical outcome for heart failure hospitalizations in patients with leadless pacemaker
Clinical outcome for heart failure hospitalizations in patients with leadless pacemaker Open
Introduction The long‐term performance of leadless pacemaker (LPM) has not been well evaluated. Methods Between September 2017 and January 2021, 929 consecutive patients who underwent pacemaker implantation were grouped according to the ty…
View article: NMR and HPLC profiling of bee pollen products from different countries
NMR and HPLC profiling of bee pollen products from different countries Open
View article: Preparation and Enzyme Degradability of Spherical and Water-Absorbent Gels from Sodium Carboxymethyl Cellulose
Preparation and Enzyme Degradability of Spherical and Water-Absorbent Gels from Sodium Carboxymethyl Cellulose Open
To synthesize a biodegradable alternative to spherical polyacrylic acid absorbent resin, spherical hydrogel particles were prepared from carboxymethyl cellulose (CMC) dissolved in an aqueous solution, using ethylene glycol diglycidyl ether…
View article: Dramatically Increased Binding Constant of Water-Soluble Cyclodextrin Hyperbranched Polymers: Explored with Diffusion Ordered NMR Spectroscopy (DOSY)
Dramatically Increased Binding Constant of Water-Soluble Cyclodextrin Hyperbranched Polymers: Explored with Diffusion Ordered NMR Spectroscopy (DOSY) Open
We report that the polymerization of cyclodextrin (CD) with epichlorohydrin (ECH) dramatically increases the binding constant of CD to vanillin, from 55 to 8.4 × 103 M-1, by approximately 100 times, as determined by d…
View article: Reinforcing Poly(methyl methacrylate) with Bacterial Cellulose Nanofibers Chemically Modified with Methacryolyl Groups
Reinforcing Poly(methyl methacrylate) with Bacterial Cellulose Nanofibers Chemically Modified with Methacryolyl Groups Open
Nanofibrillated bacterial cellulose (NFBC), a type of cellulose nanofiber biosynthesized by Gluconacetobacter sp., has extremely long (i.e., high-aspect-ratio) fibers that are expected to be useful as nanofillers for fiber-reinforced compo…
View article: Elucidation of substituent distribution states for carboxymethyl chitosan by detailed NMR analysis
Elucidation of substituent distribution states for carboxymethyl chitosan by detailed NMR analysis Open
View article: Facile Post-Carboxymethylation of Cellulose Nanofiber Surfaces for Enhanced Water Dispersibility
Facile Post-Carboxymethylation of Cellulose Nanofiber Surfaces for Enhanced Water Dispersibility Open
To improve the water dispersibility of cellulose nanofibers without deteriorating the physical properties, it is necessary to develop methods that can selectively modify fiber surfaces. Herein, the reaction conditions for carboxymethylatio…
View article: In situ formation and post-formation treatment of bacterial cellulose/κ-carrageenan composite pellicles
In situ formation and post-formation treatment of bacterial cellulose/κ-carrageenan composite pellicles Open
View article: [Review] Development and Applied Research of KBG: Hydrothermally Treated β-Glucan from <i>Aureobasidium pullulans</i>
[Review] Development and Applied Research of KBG: Hydrothermally Treated β-Glucan from <i>Aureobasidium pullulans</i> Open
伊藤忠製糖㈱では黒酵母β-グルカンに水熱処理を施すことでその粘度を下げ,素材としてのハンドリングを向上させることに成功した.現在,粉末品の商業ベースでの販売に至っている(商品名:KBG,クルルのβグル).本稿ではKBGの特徴,立体構造,アプリケーション例,機能性について紹介する.立体構造解析ではNMRにてKBG一次構造を解析し,β-(1,3)-主鎖6残基毎に4残基のβ-(1,6)-グルコース残基が規則的に分岐した構造であり,比較的分岐度が高い(67%)ことが明らかとなった.…
View article: Elucidation of Substituent Distribution States for Carboxymethyl Chitosan by Detailed NMR Analysis
Elucidation of Substituent Distribution States for Carboxymethyl Chitosan by Detailed NMR Analysis Open
View article: Nanocellulose Production via One-Pot Formation of C2 and C3 Carboxylate Groups Using Highly Concentrated NaClO Aqueous Solution
Nanocellulose Production via One-Pot Formation of C2 and C3 Carboxylate Groups Using Highly Concentrated NaClO Aqueous Solution Open
Nanocellulose was prepared from wood pulp via a one-pot oxidation reaction using only a highly concentrated solution of sodium hypochlorite pentahydrate (NaClO·5H2O) and subsequent mechanical treatment. The concentration of NaClO in the so…
View article: Nanofibrillated Bacterial Cellulose Modified with (3-Aminopropyl)trimethoxysilane under Aqueous Conditions: Applications to Poly(methyl methacrylate) Fiber-Reinforced Nanocomposites
Nanofibrillated Bacterial Cellulose Modified with (3-Aminopropyl)trimethoxysilane under Aqueous Conditions: Applications to Poly(methyl methacrylate) Fiber-Reinforced Nanocomposites Open
The development of eco-friendly fiber-reinforced composite resins is an important objective from an environmental perspective, and nanofibrillated bacterial cellulose (NFBC), with extremely long high-aspect-ratio fibers, is a filler materi…
View article: Solid-state relaxation NMR dataset for a water-soluble β-(1→3, 1→6)-glucan from Aureobasidium pullulans and schizophyllan from Schizophyllum commune
Solid-state relaxation NMR dataset for a water-soluble β-(1→3, 1→6)-glucan from Aureobasidium pullulans and schizophyllan from Schizophyllum commune Open
We report the solid-state nuclear magnetic resonance (NMR) relaxation dataset for a triple helix and a random structure of water-soluble Aureobasidium pullulans β-(1→3, 1→6)-d-glucan (APG) and those of schizophyllan from Schizoph…
View article: Two-dimensional NMR data of a series of methylcellulose with different degrees of substitution
Two-dimensional NMR data of a series of methylcellulose with different degrees of substitution Open
View article: Two-dimensional NMR data of a water-soluble β-(1→3, 1→6)-glucan from Aureobasidium pullulans and schizophyllan from Schizophyllum commune
Two-dimensional NMR data of a water-soluble β-(1→3, 1→6)-glucan from Aureobasidium pullulans and schizophyllan from Schizophyllum commune Open