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2025/12/11Presentation

Presentations were carried out onOptics & Photonics 2025

• Oral"Circularly polarized light scattering imaging of unexposed cancer for the diagnosis of early-stage cervical cancer"
  (Nozomi Nishizawa, Toshihide Matsumoto, Takahiro Kuchimaru)
• Oral"Measurements of Circular Polarized Light Scattering for Turbid Media with Fine Particles Imitating Scattering Phenomena in Biological Tissues"
  (Mike Raj Maskey(M2), Yoshimasa Ito(B4), Asato Esumi(M2), Kyosuke Murata(B4), Iori Maeda(B4), Takahiro Kuchimaru, Nozomi Nishizawa)
• Oral"Measurements of Turbid Media Including Scatterers with Different Sizes in Water Using Circularly Polarized Light Scattering for the Detection of Diffuse Cancer"
  (Yoshimasa Ito(B4), Iori Maeda(B4), Mike Raj Maskey(M2), Asato Esumi(M2), Nozomi Nishizawa)
• Oral"Optimization of Circularly Polarized Light Scattering Method for Invasion Depth Measurement of Epithelial Cancers"
  (Asato Esumi(M2), Mike Raj Maskey(M2), Kouki Kasama(B4), Miyu Kimura(B4), Nozomi Nishizawa)
• Poster"Angular Dependences of Circular Depolarization due to Multiple Scattering by Biological Fine Particles"
  (Miyu Kimura(B4), Mike Raj Maskey(M2), Asato Esumi(M2), Nozomi Nishizawa)

2025/12/04Invited Presentation

Invited presentation entitled "Cancer evaluation using of circularly polarized light scattering" on 25th Polarization Science and englneering

2025/10/30Presentation

Poster presentation titled “Circularly polarized light scattering (CiPLS) imaging of a cancerous layer creeping under a healthy layer for the diagnosis of early-stage cervical cancer" on ISBE2025（The 10th International Symposium on Biomedical Engineering） @ Higashi Hiroshima Arts & Culture Hall Kurara.

2025/09/10Presentation

Presentations were carried out on The 86th JSAP Autumn Meeting 2025.

• Oral"Experimental investigations of dependence of the diameter of scatterers on circularly polarization of light scattered from biological tissues"
  (Mike Raj Maskey (M2), Yoshimasa Ito (B4), Kyosuke Murata (B4), Koki Kasama (B4), Asato Esumi (M2), Takahiro Kuchimaru, Nozomi Nishizawa)
• Oral"Distribution measurement of squamous cell carcinoma using circularly polarized light scattering method"
  (Asato Esumi (M2), Mike Raj Maskey (M2), Yoshimasa Ito (B4), Kyosuke Murata (B4), Koki Kasama (B4), Nozomi Nishizawa)

2025/09/01News!

Dr. Nozomi Nishizawa has been promoted to a Professor.

2025/08/22Award

Congratulations!!!
Asato Esumi won the Young Encouragement Prize @ The 38th Kitasato University Bioscience Forum!!!

2025/08/21Presentation

Presentations were carried out on The 38th Kitasato University Bioscience Forum @ Towada Campus of Kitasato University

• OralPoster"Multidirectional investigation of effectiveness of CiPLS method for invasion depth measurement of squamous cell carcinoma"
  (Asato Esumi(M2), Mike Raj Maskey(M2), Yoshimasa Ito(B4), Kyosuke Murata(B4), Kouki Kasama(B4), Nozomi Nishizawa)
• OralPoster"Phantom preparations for non-invasive, non-staining, quantitative optical biopsy of metastatic cancer using CiPLS method"
  (Mike Raj Maskey(M2), Yoshimasa Ito(B4), Kyosuke Murata(B4), Kouki Kasama(B4), Asato Esumi(M2)、Takahiro Kuchimaru, Nozomi Nishizawa）
• Poster"CiPLS imaging of unexposed cancer for squamous intraepithelial dysplasia"
  (Nozomi Nishizawa、Toshihide Matsumoto, Takahiro Kuchimaru)

2025/08/04Presentation

Poster presentation titled "Cancer distribution measurements using circularly polarized light scattering" on SPIE Optics + Photonics 2025 @ San Diego, USA

2025/07/23Paper

Conference proceedings written by Mr. M. R. Maskey (M2) is published!!!
"Invasion depth estimation of gastric cancer in early stage using circularly polarized light scattering: phantom studies"
Proceeings of SPIE, 13702, 1370207 (2025).

2025/04/24Presentation

Poster presentation entitled "Invasion depth estimation of gastric cancer in early stage using circularly polarized light scattering: Phantom studies" by Mr. M. R. Maskey (M2) on The 11th Biomedical Imaging and Sensing Conference (BISC2025) in Optics & Photonics International Congress 2025（OPIC2025） @ Pacifico Yokohama

2023/08/09Paper

The collaboration article on CREST[Innovative Optics and Photonics] has been published !!
"Acquisition of full Mueller matrix distribution of cancer tissue with near-infrared polarization-probe polarization-imaging and search for its optimal polarization conditions"
Optics Express, 33 (8), 18214-18224 (2025).

2025/04/01Grant

The proposal "Establishment of evaluation technique using circularly polarized light scattering to evaluate the precancerous lesion of gynecological cancer" has been accepted for JSAP Grant-in-Aid for Scientific Research (B) (PI:N. Nishizawa, '25-'27, in collaboration with Prof. T. Kuchimaru at Jichi Meddical Univ. and Dr. T. Matsumoto at Kitasato Univ).
We appreciate this opportunity and will continue our efforts to achieve innovative achievements.

2025/03/31Invited Presentation

Invited presentation entitled "Cancer evaluation imaging using of circularly polarized light scattering" on 1st Closed conference on 2025 in Consortium of Industry-Academia Collaboration on Bio-Optical Imaging and Spectroscopy

2025/03/18Presentation

Presentations were carried out on The 72nd JSAP Spring Meeting 2025.

• Oral"Imaging of circularly polarized light scattering for squamous intra-epithelial dysplasia"
  (Nozomi Nishizawa, Mahiro Ishikawa, Hidetoshi Matsumoto(Allied Health Sci., Kitasato univ.), et al.)
• Oral"In-vitro experiments with biological phantoms for depth estimation of cancer invasion using circularly polarized light scattering"
  (Mike Raj Maskey, Mitsuo Fukuno, Akane Saito, Asato Esumi, Nozomi Nishizawa)
• Oral"Dependence of S₃ spectra on depth of infiltration of cancer tissue through polarimetric visualization by near-infrared polarization probe polarization imaging"
  (Collaboration research with Nagaoka University of Technology)
• Poster"Contributions of particle-size distributions to circular depolarization in circularly polarized light scattering method"
  (Asato Esumi, Nozomi Nishizawa)
• Poster"Fabrication of biological phantoms for cancer detection by using circularly polarized light scattering"
  (Mitsuo Fukuno, Akane, Saito, Mike Raj Maskey, Nozomi Nishizawa)
• Poster"Experimental demonstrations of depolarization diagram for circularly polarized light scattering"
  (Kanta Harada, Asato Esumi, Nozomi Nishizawa)

2025/03/03Presentation

Poster presentation on 2024 Annual Research Report Conference of the Cooperative Reseach Project of Research Center for Biomedical Engineering

2025/03/01Presentation

Poster presentation entitled "Cancer distribution measurements using circularly polarized light scattering" on The 1st Kitasato Researcher Summit @ Sagamihara campus of Kitasato university were performed to cultivate a friendly relationship among researchers at this university.

2025/02/20Students

Our lab B4 members gave presentations in the oral examinations of graduation research.

2025/01/23Invited Presentation

Invited presentation entitled "Invasive cancer diagnosis technique using circularly polarized light scattering" on Symposium "Contributions of Tissue Optics to Biomedical Photonics" in The 45th Annul Meeting of the Laser Society of Japan @ International Conference Center Hiroshima

Past News are here

Research introduction (in Japanese)