연구진흥

창의적인 신지식 창출과 산업계와의 협력적 네트워크 구축

금주의 우수논문

SCI-E Article
Self-assembly of unidirectionally polarized piezoelectric peptide nanotubes using environmentally friendly solvents
이주헌
  1. 성명
    이주헌
  2. 소속
    공학대학 생명나노공학과
  3. 캠퍼스
  4. 우수선정주
    2023년 03월 4째주
Author
이주헌 (Dept Bionano Engn) corresponding author;
Corresponding Author Info
Lee, JH; Lee, JH (corresponding author), Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Energy Sci & Engn, Daegu 42988, South Korea.
E-mail
이메일juhunlee@hanyang.ac.kr
Document Type
Article
Source
APPLIED SURFACE SCIENCE Volume:618 Issue: Pages:- Published:2023
Times Cited
0
External Information
http://dx.doi.org/10.1016/j.apsusc.2023.156588
Abstract
Diphenylalanine (FF) peptide nanotubes are considered to be particularly promising biomaterials for bio-implantable devices due to their unique characteristics, such as strong piezoelectricity, remarkable physical properties, and chemical stability. However, the 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP)-water co-solvent system, which is often used for FF nanotube synthesis, is toxic and expensive. These are limitations for the development of eco-friendly and practical biocompatible piezoelectric devices. In this study, we developed an eco-friend and cost-effective approach for aligning piezoelectric FF nanotubes using an ethanol-water solvent system. First, we fabricated horizontally aligned FF nanotubes via a meniscus-driven self-assembly process. The fabricated FF nanotubes using ethanol exhibited unidirectional polarization and strong piezoelectric properties comparable to HFIP solvent based FF nanotubes. In addition, the FF-based piezoelectric nanogenerator generates voltage, current, and power of up to 1.66 V, 19.4 nA, and 19.2 nW, respectively, with a force of 40 N. These FF-based piezoelectric nanogenerators will be applicable as a compatible energy source for future biomedical applications.
Web of Science Categories
Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter
Funding
National Research Foundation of Korea [2020R1C1C1007436, 2022M3D1A2054488]; Hanyang University [HY-2022-2563]
Language
English
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