Hajime Fujita (藤田創, he/him/his) is a Ph.D. student in Prof. Tom Soh's group at Stanford University where he works at the intersection of applied chemistry and hardware.

Honors & Awards

  • Funai Overseas Scholarship, Funai Foundation of Information Technology
  • Stanford Graduate Fellowship, Stanford University
  • Doctoral Fellowship (DC1), Japanese Society for the Promotion of Science (2022)
  • Yoshinori Ohsumi Outstanding Paper Award, Tokyo Institute of Technology (2022)
  • Doctoral Fellowship, Japan Science and Technology Agency (2021-2022)
  • Half-year accelerated graduation of Master program, Tokyo Institute of Technology (2021)
  • Graduate Fellowship, Tokyo Tech Academy of Super Smart Sociery / MEXT, Japan (2020-2021)
  • Research grant for visiting Stanford University, Astellas Pharma Rx+ Accelerator Program (2019)
  • Student Leadership Award, Tokyo Institute of Technology (2019)
  • Grand Prize - 2nd Place, Stanford Healthcare Hackathon (health++) (2018)
  • Gold Medal, International Genetically Engineered Machine Competition (iGEM) (2017)
  • Regional Award, National Chemistry Olympiad in Japan / Chemical Society of Japan (2015)

Education & Certifications

  • MS, Tokyo Institute of Technology, Bioengineering (Advisor: Prof. Toshinori Fujie) (2021)
  • UROP, Singapore University of Technology and Design, Engineering Product Design (Advisor: Prof. Michinao Hashimoto) (2019)
  • BS, Tokyo Institute of Technology, Bioengineering (2020)


  • Hajime Fujita, Toshinori Fujie. "Japan Patent 2021173651 Biometric device", Tokyo Institute of Technology, Nov 1, 2021
  • Hajime Fujita. "Japan Patent 2021128374 Map recommendation system for stroller users", Pigeon Inc., Sep 2, 2021

Current Research and Scholarly Interests


All Publications

  • Paper-Based Wearable Ammonia Gas Sensor Using Organic-Inorganic Composite PEDOT:PSS with Iron(III) Compounds ADVANCED MATERIALS TECHNOLOGIES Fujita, H., Hao, M., Takeoka, S., Miyahara, Y., Goda, T., Fujie, T. 2022
  • Design and fabrication of a flexible glucose sensing platform toward rapid battery-free detection of hyperglycaemia JOURNAL OF MATERIALS CHEMISTRY C Fujita, H., Yamagishi, K., Zhou, W., Tahara, Y., Huang, S., Hashimoto, M., Fujie, T. 2021; 9 (23): 7336-7344

    View details for DOI 10.1039/d1tc00667c

    View details for Web of Science ID 000657264100001

  • R2R-Based Continuous Production of Patterned and Multilayered Elastic Substrates with Liquid Metal Wiring for Stretchable Electronics ADVANCED MATERIALS TECHNOLOGIES Kawakami, H., Nagatake, K., Ni, S., Nakamura, F., Takano, T., Murakami, K., Ohara, I., Isano, Y., Matsuda, R., Suwa, H., Higashi, R., Kanto, M., Saito, M., Fujita, H., Araki, T., Ozaki, S., Ueno, K., Horii, T., Fujie, T., Ota, H. 2024
  • An intrinsically semi-permeable PDMS nanosheet encapsulating adipose tissue-derived stem cells for enhanced angiogenesis. Biomaterials science Takuma, M., Fujita, H., Zushi, N., Nagano, H., Azuma, R., Kiyosawa, T., Fujie, T. 2024


    Cell encapsulation devices are expected to be promising tools that can control the release of therapeutic proteins secreted from transplanted cells. The protein permeability of the device membrane is important because it allows the isolation of transplanted cells while enabling the effectiveness of the device. In this study, we investigated free-standing polymeric ultra-thin films (nanosheets) as an intrinsically semi-permeable membrane made from polydimethylsiloxane (PDMS). The PDMS nanosheet with a thickness of 600 nm showed intrinsic protein permeability, and the device fabricated with the PDMS nanosheet showed that VEGF secreted from implanted adipose tissue-derived stem cells (ASCs) could be released for at least 5 days. The ASC encapsulation device promoted angiogenesis and the development of granulation tissue 1 week after transplantation to the subcutaneous area of a mouse. This cell encapsulation device consisting of PDMS nanosheets provides a new method for pre-vascularization of the subcutaneous area in cell transplantation therapy.

    View details for DOI 10.1039/d4bm00460d

    View details for PubMedID 38804980

  • Transparent and Breathable Ion Gel-Based Sensors toward Multimodal Sensing Ability ADVANCED MATERIALS TECHNOLOGIES Isano, Y., Fujita, H., Murakami, K., Ni, S., Kurotaki, Y., Takano, T., Isoda, Y., Matsuda, R., Nakamura, F., Nishitai, Y., Ochirkhuyag, N., Inoue, K., Kawakami, H., Okubo, Y., Ueno, K., Fujie, T., Ota, H. 2022
  • Flexible Induction Heater Based on the Polymeric Thin Film for Local Thermotherapy ADVANCED FUNCTIONAL MATERIALS Saito, M., Kanai, E., Fujita, H., Aso, T., Matsutani, N., Fujie, T. 2021; 31 (32)