Masaki Umetsu
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View article: Effect of oxidation treatment and UV irradiation of titanium on surface properties and yeast adhesion
Effect of oxidation treatment and UV irradiation of titanium on surface properties and yeast adhesion Open
In bioreactors that use microorganisms as catalysts, it is important to retain a high density of microorganisms on the support material. Initial adhesion of microorganisms is the first step in the formation of a robust biofilm. In this stu…
View article: Design of porous calcium phosphate cement composed of spherical porous granules based on precipitation of octacalcium phosphate
Design of porous calcium phosphate cement composed of spherical porous granules based on precipitation of octacalcium phosphate Open
It is crucial to develop calcium phosphate cements with high bone regeneration abilities. This study demonstrates synthesis of porous calcium phosphate cements that are set by precipitating octacalcium phosphate (OCP) using α-tricalcium ph…
View article: Preparation and Evaluation of Cements Using Spherical Porous β-Tricalcium Phosphate Granules
Preparation and Evaluation of Cements Using Spherical Porous β-Tricalcium Phosphate Granules Open
Calcium phosphate cements (CPCs) with macropores and micropores for high bone regeneration ability are desired. CPCs with macropores and micropores which were prepared by combining porous granules have been reported. In this study, the cem…
View article: 3D‐Printed Methane‐Producing Electrodes for Microbial Fuel Cells Developed Using Biogel Ink Containing Live Methanogens and White Charcoal
3D‐Printed Methane‐Producing Electrodes for Microbial Fuel Cells Developed Using Biogel Ink Containing Live Methanogens and White Charcoal Open
Front cover: The cover image features a novel electrode, representing the changing process from CO2 to CH4 by the methanogens embedded in a 3D-printed structure with the custom progressive cavity pump system. The results show increased met…
View article: Effect of Oxidation Treatment and UV Irradiation of Titanium Surface on Yeast Adhesion
Effect of Oxidation Treatment and UV Irradiation of Titanium Surface on Yeast Adhesion Open
Support materials capable of immobilizing microorganisms, such as yeast, are important for developing bioreactors for producing useful substances and wastewater treatment. However, the intricacies of initial microorganism adhesion remain u…
View article: 3D‐Printed Methane‐Producing Electrodes for Microbial Fuel Cells Developed Using Biogel Ink Containing Live Methanogens and White Charcoal
3D‐Printed Methane‐Producing Electrodes for Microbial Fuel Cells Developed Using Biogel Ink Containing Live Methanogens and White Charcoal Open
Methanogens are used as catalysts for cathodes in microbial fuel cells, to reduce CO 2 to CH 4 . However, the attachment of microbes to the electrodes via culturing is time‐consuming, and inadequate biofilm formation can lead to lesser sur…
View article: Iron azaphthalocyanine electrocatalysts for enhancing oxygen reduction reactions under neutral conditions and power density in microbial fuel cells
Iron azaphthalocyanine electrocatalysts for enhancing oxygen reduction reactions under neutral conditions and power density in microbial fuel cells Open
Highly catalytic cathodes for oxygen reduction reactions under neutral conditions allow major improvement in the power output of microbial fuel cells (MFCs). This work reports iron azaphthalocyanine impregnated into oxidized multi-walled c…
View article: Functional Group Distribution of the Carrier Surface Influences Adhesion of <i>Methanothermobacter thermautotrophicus</i>
Functional Group Distribution of the Carrier Surface Influences Adhesion of <i>Methanothermobacter thermautotrophicus</i> Open
Various support carriers are used for high-density retention of methanogenic archaea in anaerobic wastewater treatment systems. Although the physicochemical properties of carrier materials and microorganisms influence the adhesion of metha…