Biocompatible and mechanically-reinforced tribopositive nanofiber mat for wearable and antifungal human kinetic-energy harvester based on wood-derived natural product

Dogun Park, Joo Hyun Hong, Daekyu Choi, Donghyeun Kim, Won Hee Jung, Sam S. Yoon, Ki Hyun Kim, Seongpil An

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Developing sustainable and environmentally friendly energy harvester is of great interest for various applications, especially for wearable and body-attachable self-powered electronics. Here, a biocompatible, mechanically durable, and sustainable wood-derived triboelectric nanogenerator (wood-TENG) is fabricated and applied as a human kinetic-energy harvester, along with an antifungal activity against athlete's foot. The wood-TENG is composed of the wood-derived natural product, i.e., the root bark of Ulmus davidiana var. japonica and the biocompatible polymer, i.e., polycaprolactone (PCL). The incorporation of U. davidiana var. japonica in nonwoven PCL nanofiber (NF) mat not only enhances the mechanical properties of the wood-TENG, but also increases the surface energy of the NF mat, resulting in the highest energy harvesting efficiency as compared to those of other bio-TENGs. Various physicochemical characterizations, including Fourier transform infrared (FTIR), Kelvin probe force microscopy (KPFM), etc., are conducted to explore the tribopositivity of the NF mat. Thanks to the enhanced triboelectricity, our wood-TENG can generate a maximum output voltage of 80 V and show stable cyclic energy harvesting performance during 100,000 cycles.

Original languageEnglish
Article number107091
JournalNano Energy
Volume96
DOIs
Publication statusPublished - 2022 Jun 1

Keywords

  • Antifungal activity
  • Biocompatible triboelectric nanogenerator
  • Electrospinning technique
  • Energy harvester
  • Nature-derived nanofiber mat
  • Ulmus davidiana var. japonica root bark

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Biocompatible and mechanically-reinforced tribopositive nanofiber mat for wearable and antifungal human kinetic-energy harvester based on wood-derived natural product'. Together they form a unique fingerprint.

Cite this