Adhesive Leaf Created by a Corona Discharge

Wonseok Lee, Jongsang Son, Seonghyun Kim, Dongmin Yang, Seungyeop Choi, Rodrigo Akira Watanabe, Kyo Seon Hwang, Sang Woo Lee, Gyudo Lee, Dae Sung Yoon

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Here, we report a new concept of both the adhesive manner and material, named "adhesive leaf (AL)," based on the leaf of the plant Heteropanax fragrans. The treatment of the corona discharge on the leaf surface can cause the nano-/microdestruction of the leaf epidermis, resulting in an outward release of sap. The glucose-containing sap provided the AL with a unique ability to stick to various substrates such as steel, polypropylene, and glass. Moreover, we reveal that the AL adhesion strength depends on the AL size, as well as the corona-discharge intensity. Conventional adhesives, such as glue and bond, lose their adhesive property and leave dirty residues upon the removal of the attached material. Unlike the conventional methods, the AL is advantageous as it can be repeatedly attached and detached thoroughly until the sap liquid is exhausted; its adhesive ability is maintained for at least three weeks at room temperature. Our findings shed light on a new concept of a biodegradable adhesive material that is created by a simple surface treatment.

Original languageEnglish
Article number1737
JournalScientific reports
Issue number1
Publication statusPublished - 2018 Dec 1

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1A6A3A11034311) and by Korea University Grant. This work was also supported by the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MSIP) (No. NRF-2016R1A2B4010269 and 2017R1A2B2002076).

Publisher Copyright:
© The Author(s) 2018.

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