Wireless powered flexible carbon dioxide gas monitoring device utilizing polyethyleneimine functionalized GO/MXene composites for nondestructive dynamic monitoring of mango ripeness

IF 8 1区化学 Q1 CHEMISTRY, ANALYTICAL

Sensors and Actuators B: Chemical Pub Date : 2025-03-18 DOI:10.1016/j.snb.2025.137633

Laizhao Guo , Wentao Huang , Yun Li , Xiaoshuan Zhang , Xiang Wang

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引用次数: 0

Abstract

Mangoes are usually packed in cardboard boxes during transportation and storage, and manual unpacking of the boxes to determine their ripeness is an inefficient method of testing. Fortunately, changes in carbon dioxide (CO₂) concentration can serve as an indicator of ripeness and potential spoilage. To address this, a wireless powered flexible CO₂ gas monitoring device (WFCMD) utilizing polyethyleneimine (PEI)-functionalized GO/MXene composites was developed. This device demonstrates high sensitivity and excellent electrical conductivity, making it suitable for real-time monitoring in practical applications. The response of the composites to CO₂ was evaluated with varying PEI loadings, showing enhanced sensing performance due to the efficient CO₂ adsorption by PEI and the high conductivity of GO/MXene. The complete gas monitoring system was integrated using an ESP-12F microcontroller unit (MCU), allowing for seamless attachment to the surface of mangoes for continuous, nondestructive monitoring. The device's feasibility was confirmed through extended monitoring of packaged mangoes, demonstrating its potential for application in fruit gas detection and quality control.

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来源期刊

Sensors and Actuators B: Chemical 工程技术-电化学

CiteScore

14.60

自引率

11.90%

发文量

1776

审稿时长

3.2 months

期刊介绍： Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.