Sandwich-structure transferable free-form OLEDs for wearable and disposable skin wound photomedicine

Yongmin Jeon; Hye-Ryung Choi; Jeong Hyun Kwon; Seungyeop Choi; Kyung Mi Nam; Kyoung-Chan Park; Kyung Cheol Choi

doi:10.1038/s41377-019-0221-3

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Sandwich-structure transferable free-form OLEDs for wearable and disposable skin wound photomedicine

Article

- Sandwich-structure transferable free-form OLEDs for wearable and disposable skin wound photomedicine
- Light: Science & Applications Vol. 8, Issue 6, Pages: 1111-1125(2019)
- Affiliations：
  
  1.School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
  2.Department of Dermatology, Seoul National University Bundang Hospital (SNUBH), Seongnam 13620, Republic of Korea
- Author bio：
  
  Kyoung-Chan Park (gcpark@snu.ac.kr)
  Kyung Cheol Choi (kyungcc@kaist.ac.kr)
- Funds：
- DOI：10.1038/s41377-019-0221-3
  CLC：
- Published：2019，
  
  Published Online：09 December 2019，
  
  Received：09 July 2019，
  
  Revised：28 October 2019，
  
  Accepted：10 November 2019
- Accepted：
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Jeon, Y. M. et al. Sandwich-structure transferable free-form OLEDs for wearable and disposable skin wound photomedicine. Light: Science & Applications, 8, 1111-1125 (2019).
DOI：

Jeon, Y. M. et al. Sandwich-structure transferable free-form OLEDs for wearable and disposable skin wound photomedicine. Light: Science & Applications, 8, 1111-1125 (2019). DOI： 10.1038/s41377-019-0221-3.

摘要

Abstract

Free-form optoelectronic devices can provide hyper-connectivity over space and time. However

most conformable optoelectronic devices can only be fabricated on flat polymeric materials using low-temperature processes

limiting their application and forms. This paper presents free-form optoelectronic devices that are not dependent on the shape or material. For medical applications

the transferable OLED (10 μm) is formed in a sandwich structure with an ultra-thin transferable barrier (4.8 μm). The results showed that the fabricated sandwich-structure transferable OLED (STOLED) exhibit the same high-efficiency performance on cylindrical-shaped materials and on materials such as textile and paper. Because the neutral axis is freely adjustable using the sandwich structure

the textile-based OLED achieved both folding reliability and washing reliability

as well as a long operating life (> 150 h). When keratinocytes were irradiated with red STOLED light

cell proliferation and cell migration increased by 26 and 32%

respectively. In the skin equivalent model

the epidermis thickness was increased by 39%; additionally

in organ culture

not only was the skin area increased by 14%

but also

re-epithelialization was highly induced. Based on the results

the STOLED is expected to be applicable in various wearable and disposable photomedical devices.

关键词

Keywords

references

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