Rationally Improved Surface Charge Density of Triboelectric Nanogenerator with TiO2-MXene/Polystyrene Nanofiber Charge Trapping Layer for Biomechanical Sensing and Wound Healing Application

被引：9

作者：

Venkatesan, Manikandan ^{[1
]}

Chandrasekar, Jayashree ^{[1
]}

Hsu, Yung-Chi ^{[1
]}

Sun, Ting-Wang ^{[1
]}

Li, Po-Yu ^{[1
]}

King, Xuan-Ting ^{[1
]}

Chung, Ming-An ^{[2
]}

Chung, Ren-Jei ^{[3
]}

Lee, Wen-Ya ^{[3
]}

Zhou, Ye ^{[4
]}

Lin, Ja-Hon ^{[5
]}

Kuo, Chi-Ching ^{[1
,6
]}

机构：

[1] Natl Taipei Univ Technol, Inst Organ & Polymer Mat, Taipei 10608, Taiwan

[2] Natl Taipei Univ Technol, Dept Elect Engn, Taipei 10608, Taiwan

[3] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei 10608, Taiwan

[4] Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Peoples R China

[5] Natl Taipei Univ Technol, Dept Electroopt Engn, Taipei 106, Taiwan

[6] Natl Taiwan Univ, Adv Res Ctr Green Mat Sci & Technol, Taipei 10617, Taiwan

来源：

ADVANCED SCIENCE | 2024年 / 11卷 / 34期

关键词：

charge trapping; electrical stimulation; electrospun nanofiber; oxidized MXene; triboelectric nanogenerator; wound healing;

D O I：

10.1002/advs.202404019

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Triboelectric nanogenerators (TENGs) have become reliable green energy harvesters by converting biomechanical motions into electricity. However, the inevitable charge leakage and poor electric field (EF) of conventional TENG result in inferior tribo-charge density on the active layer. In this paper, TiO2-MXene incorporated polystyrene (PS) nanofiber membrane (PTMx NFM) charge trapping interlayer is introduced into single electrode mode TENG (S-TENG) to prevent electron loss at the electrode interface. Surprisingly, this charge-trapping mechanism augments the surface charge density and electric output performance of TENGs. Polyvinylidene difluoride (PVDF) mixed polyurethane (PU) NFM is used as tribo-active layer, which improves the crystallinity and mechanical property of PVDF to prevent delamination during long cycle tests. Herein, the effect of this double-layer capacitive model is explained experimentally and theoretically. With optimization of the PTMx interlayer thickness, S-TENG exhibits a maximum open-circuit voltage of (280 V), short-circuit current of (20 mu A) transfer charge of (120 nC), and power density of (25.2 mu W cm(-2)). Then, this energy is utilized to charge electrical appliances. In addition, the influence of AC/DC EF simulation in wound healing management (vitro L929 cell migration, vivo tissue regeneration) is also investigated by changing the polarity of trans-epithelial potential (TEP) distribution in the wounded area.

引用

页数：11