利用聚乙烯亚胺功能化GO/MXene复合材料的无线供电柔性二氧化碳气体监测装置，用于芒果成熟度的无损动态监测

IF 3.7 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

摘要

芒果在运输和储存过程中通常是用纸板箱包装的，手工打开纸板箱来确定其成熟度是一种低效的测试方法。幸运的是，二氧化碳（CO₂）浓度的变化可以作为成熟度和潜在变质的指标。为了解决这个问题，研究人员开发了一种利用聚乙烯亚胺（PEI）功能化氧化石墨烯/MXene复合材料的无线供电柔性二氧化碳气体监测装置（WFCMD）。该装置具有高灵敏度和优异的导电性，适合实际应用中的实时监测。在不同PEI负载下，复合材料对CO₂的响应进行了评估，由于PEI对CO₂的高效吸附和GO/MXene的高导电性，复合材料的传感性能得到了增强。整个气体监测系统采用ESP-12F微控制器（MCU）集成，可以无缝连接到芒果表面，进行连续、无损的监测。通过对包装芒果的长期监测，证实了该装置的可行性，展示了其在水果气体检测和质量控制方面的应用潜力。

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

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.