材料科学
乙二醇二甲基丙烯酸酯
分子印迹聚合物
柠檬烯
纳米纤维
纳米技术
甲基丙烯酸
化学工程
聚合物
选择性
复合材料
色谱法
有机化学
化学
单体
催化作用
工程类
精油
作者
Fabricio N. Molinari,Marcello Marelli,Enrico Berretti,Simone Serrecchia,Roxana E. Coppola,Fabrizio De Cesare,Antonella Macagnano
出处
期刊:Polymers
[Multidisciplinary Digital Publishing Institute]
日期:2025-01-25
卷期号:17 (3): 326-326
被引量:1
标识
DOI:10.3390/polym17030326
摘要
As population growth and climate change intensify pressures on agriculture, innovative strategies are vital for ensuring food security, optimizing resources, and protecting the environment. This study introduces a novel approach to predictive agriculture by utilizing the unique properties of terpenes, specifically S(-)-limonene, emitted by plants under stress. Advanced sensors capable of detecting subtle limonene variations offer the potential for early stress diagnosis and precise crop interventions. This research marks a significant leap in sensor technology, introducing an innovative active sensing material that combines molecularly imprinted polymer (MIP) technology with electrospinning. S(-)-limonene-selective MIP nanoparticles, engineered using methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA), were synthesized with an average diameter of ~160 nm and integrated into polyvinylpyrrolidone (PVP) nanofibers reinforced with multiwall carbon nanotubes (MWCNTs). This design produced a conductive and highly responsive sensing layer. The sensor exhibited rapid stabilization (200 s), a detection limit (LOD) of 190 ppb, and a selectivity index of 73% against similar monoterpenes. Optimal performance was achieved at 55% relative humidity, highlighting environmental conditions’ importance. This pioneering use of polymeric MIP membranes in chemiresistive sensors for limonene detection opens new possibilities for monitoring VOCs, with applications in agricultural stress biomarkers, contaminant detection, and air quality monitoring, advancing precision agriculture and environmental protection.
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