Katsuyuki Hasegawa

ORCID: 0000-0002-6008-6833
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Research Areas
  • Nanomaterials and Printing Technologies
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Robotics and Sensor-Based Localization
  • Fluid Dynamics and Heat Transfer
  • Biosensors and Analytical Detection
  • Periodontal Regeneration and Treatments
  • Extracellular vesicles in disease
  • Advanced Vision and Imaging
  • Nanoplatforms for cancer theranostics
  • Advanced Wireless Communication Techniques
  • Advanced biosensing and bioanalysis techniques
  • Tissue Engineering and Regenerative Medicine
  • 3D Surveying and Cultural Heritage
  • Inhalation and Respiratory Drug Delivery
  • Robotic Path Planning Algorithms
  • Synthesis and properties of polymers
  • MXene and MAX Phase Materials
  • Ultra-Wideband Communications Technology
  • Video Surveillance and Tracking Methods
  • Optical Network Technologies
  • Semiconductor materials and interfaces
  • Intermetallics and Advanced Alloy Properties
  • Copper-based nanomaterials and applications
  • Advanced Photonic Communication Systems
  • Plasmonic and Surface Plasmon Research

Tokyo University of Agriculture and Technology
1997-2023

Mirai Hospital
2023

Takashimadaira Chuo General Hospital
2020

Shiseido Group (Japan)
2007-2017

Suzuki (Japan)
2017

Mytech (Japan)
2013-2015

We introduced a novel method for the rapid synthesis of silver nanohexagonal thin columns from an aqueous mixture sodium thiosulfate (Na2S2O3) and chloride (AgCl) simply added to phosphor bronze substrate. The reaction is based on galvanic displacement products are potentially useful plasmonic applications.

10.1039/c3cp52564c article EN Physical Chemistry Chemical Physics 2013-01-01

Abstract Blood tests, which are commonly used for cancer screening, generally have low sensitivity. Here, we developed a novel rapid and simple method to generate silver nanoscale hexagonal columns (NHCs) use in surface-enhanced Raman scattering (SERS). We reported that the intensity of SERS spectra clinical serum samples obtained from gastrointestinal patients is was significantly higher than non-cancer patients. estimated combined constituents on NHCs by using field emission-type scanning...

10.1038/srep10455 article EN cc-by Scientific Reports 2015-05-21

Packing of deformable oil droplets severely retards drying water, which is well described by a mathematical model.

10.1039/c7sm01490b article EN Soft Matter 2017-01-01

Oil droplets were packed and finally they evaporated anisotropically because of the receding air–liquid interface pinning by residual water phase.

10.1039/d0sm01116a article EN Soft Matter 2020-01-01

32 Background: Surface-Enhanced Raman Scattering (SERS) has been widely applicated in industrial microanalysis, and researched to apply for various fields, example biological research. We tried detect the SERS spectra from blood samples obtained patients with cancers or benign diseases by using a low intensity laser beam, compared pattern among patient group. Methods: Blood were gastric cancer (n=30), colorectal (n=20), pancreas (n=5) (n=20). All centrifuged at 1600g 7 minutes, serum...

10.1200/jco.2015.33.3_suppl.32 article EN Journal of Clinical Oncology 2015-01-20

A novel polymer dispersant with a tri-block structure was designed. The composed of polyglycerin (PGL) two dimethylpolysiloxane chains (DMPS) at both ends the molecular structure. high dispersibility confirmed in model silica system and sunscreen formulation. apparent particle size employed as an index for dispensability dispersants. showed 5 times more effective than conventional one. flow properties formulation containing titanium dioxide Newtonian, indicating that excellent. On other...

10.5650/jos.56.245 article EN Journal of Oleo Science 2007-01-01

This work overviews our research on digital preservation of cultural assets and restoration their original appearance. Geometric models are digitally achieved through a pipeline consisting scanning, registering merging multiple range images. We have developed robust simultaneous registration method an efficient voxel-based integration method. On the geometric created, we to align texture images acquired from color camera. mapping utilize laser reflectance. In attempt restore appearance...

10.1109/icpr.2004.763 article EN Deleted Journal 2004-08-23
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