Volume 21, Issue 12 2411706
Research Article

Self-Powered Linear Pressure Sensor Based on MXene/CNT Nanofluid Membrane

Kun Chen

Kun Chen

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Mengyao Gao

Mengyao Gao

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Xiaoqing Liu

Xiaoqing Liu

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Haonan Xing

Haonan Xing

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Huili Sun

Huili Sun

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Huatang Wang

Huatang Wang

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Aosen Lou

Aosen Lou

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Search for more papers by this author
Xiaohui Song

Xiaohui Song

Henan Academy of Sciences, Zhengzhou, 450046 China

Search for more papers by this author
Weijie Liu

Corresponding Author

Weijie Liu

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
Haizhong Guo

Corresponding Author

Haizhong Guo

Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450001 China

Institute of Quantum Materials and Physics, Henan Academy of Sciences, Zhengzhou, 450046 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
First published: 12 February 2025

Abstract

Ion channels, which own efficient, accurate, and selective ion transport ability, play a key role in maintaining cell homeostasis, participating in signal transduction, and other physiological processes in organisms. However, the inherent complexity and uncontrollability of ion channels in nature restrict their direct use in technical applications. In order to address the application requirements of specific fields, nanochannels have been designed to simulate and optimize the functional characteristics of biological ion channels. Herein, two-dimensional (2D) nanochannels based on MXene/carbon nanotube (CNT) composite membrane are constructed, with their ion transport mechanisms analyzed using molecular dynamics simulations. In addition, the ion transport characteristics in nanochannels under the influence of external environment of pressure are further explored and the current density can reach up to 315 nA cm−2. Based on the ion selectivity of nanochannels in MXene/CNT composite membrane, a self-powered linear pressure sensor is designed, which shows an ultrafast response (51.3 ms) and recovery time (60.2 ms), respectively. Thus, the sensor is capable of monitoring a range of human activities ranging from subtle deformations to vigorous body movements. Furthermore, the sensor can readily differentiate a range of sounds through air vibration and exhibit enormous potential in sound visualization technology.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.