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튜토리얼 세션


   프로그램

  • 일정 : 2021년 1월 19일 09:00 - 10:30
  • 온라인 세션 진행

   등록 안내

  • 등록기한 : 2021년 1월 15일(금) 18:00
  • 등록비 : 10만원
    ※ NCC 2021에 등록하신 참가자 모두 튜토리얼 세션에 참여하실 수 있습니다. 

  연사 소개


이름이진호
소속부산대학교
발표 제목Nanoengineering
Toward Enhanced Stem Cell Therapy
발표 시간9:00 - 9:30


  • Education
2019.12 - PresentAssistant Professor
School of Biomedical Convergence Engineering 

Pusan National University

2016.6 - 2019.11

The State University of New Jersey

Dept. of Chemistry and Chemical Biology

The State University of New Jersey

2015.1 - 2016.5

Postdoctoral Research Fellow

Dept. of Bioengineering 

University of California


  • Contents

Through their ability to differentiate into multiple cell lineage, stem cells have gained a tremendous amount of attention from the regenerative medicine field. Yet, it is difficult to control their differentiation and it is harder to characterize their fate. In this study, nanoengineering is used to enhance stem cell differentiation and to monitor stem cell fate while preserving its integrity and viability. (1) Both the differentiation efficiency of mesenchymal stem cells and the electrochemical detection sensitivity of differentiation markers are increased through graphene-gold hybrid nanoelectrode array. (2) The problems faced when using the current destructive characterization methods can be solved by a magneto-plasmonic nanorods multifunctional detection platform. We believe that nanoengineering to facilitate stem cell therapy closer to clinical applications to the treatment of degenerative diseases and injuries.


이름이진욱
소속성균관대학교
발표 제목Surface defect engineering for stable and efficient metal halide perovskite solar cells
발표 시간9:30 - 10:00


  • Education
2019.8 - PresentAssistant Professor

SAINT and Department of Nanoengineering

Sungkyunkwan University

2016.9 - 2019.7

Postdoctoral researcher

Department of Materials Science & Engineering

University of California Los Angeles (UCLA)

2016.3 - 2016.8

Postdoctoral researcher

Sungkyunkwan University


  • Contents

Defect states and non-radiative losses in metal halide perovskite films were reported to dominantly occur at the top surface of the films. Passivation of the surface defects using post-fabrication surface treatments is widely used for fabricating high efficiency perovskite solar cells (PSCs). Here, we report an effective approach to surface defect engineering for stable and efficient PSCs. We found that shallow iodine interstitial defects (Ii) can be generated unintentionally during the commonly used post-fabrication surface treatments, which can lower the cubic-to-hexagonal transformation barrier of FAPbI3-based perovskites to accelerate its phase degradation. We demonstrate that concurrently avoiding the generation of Ii and the more effective passivation of iodine vacancies (VI) can improve the thermodynamic stability of the films and operational stability of the PSCs. Our most stable PSCs achieved an average T80 lifetime of 4,069 h under continuous illumination, with a champion of 10,110 h. Furthermore, we show that surface reconstruction can occur during the commonly used surface treatment due to a polar isopropyl alcohol (IPA) solvent. Based on the observation, we propose possible mechanisms of the surface passivation by ubiquitous ammonium halide passivation agents.




이름강지형
소속한국과학기술원
발표 제목Molecular design principle of self-healing materials for soft electronics
발표 시간1월 19일(화) 10:00 - 10:30


  • Education
2020.2 - PresentAssistant Professor
Materials Science and Engineering 

KAIST

2017.11 - 2019.12

Postdoctoral Fellow 

Chemical Engineering 

Stanford University

2012.8 - 2017.9

PhD

Chemistry and Biotechnology

The University of Tokyo


  • Contents

In this presentation, I will first show my approaches to toughen self-healable network2 to use for soft electronic applications. The toughened self-healing materials realize exceptional mechanical properties such as notch-insensitive high stretchability, high toughness of 12,000 J/m2, and autonomous self-healing even in aquatic environment. Second, I will talk about how to impart electronic functionalities to self-healable polymer network using nanomaterials. This approach is based on my recent finding that conductive nanostructured network can be reconstructed when it is surrounded by dynamic self-healing polymer matrix. Based on this self-healable conductive material, I was able to fabricate various functional electronic devices (ECG, EMG sensor, Display) and integrate them in a single platform capable of monitoring physiological signals and displaying feedback information through closed-loop communication between the user and electronics.  Advantages of self-healable materials in the fabrication process at a system level will be discussed as well. Finally, I will show unexplored opportunities in interconnection technologies in soft electronics by the use of self-healable materials, which allow the users to design and construct their own electronics by simply cutting and pressing the robust, self-healable electronic modules (modular and reconfigurable electronics)Through my presentation, I will cover from fundamental development of self-healing materials to their system level applications in soft electronics.