A stretchable glove sensor toward rapid monitoring of trifluralin: A new platform for the on‐site recognition of herbicides based on wearable flexible sensor technology using lab‐on‐glove

• Published in: Journal of molecular recognition 2021-10, Vol.34 (10), p.e2923-n/a
• Main Authors: Mahmoudpour, Mansour, Saadati, Arezoo, Hasanzadeh, Mohammad, Kholafazad‐kordasht, Houman
• Format: Article
• Language: English
• Subjects: Chemical sensors; electrochemical detection; Electrochemical Techniques - instrumentation; Electrochemical Techniques - methods; Electrochemistry; Electrodes; Embedded sensors; Equipment Design; Flexible components; Food security; Gold; Graphene; Graphite - chemistry; Herbicides; Herbicides - analysis; lab‐on‐a‐glove; Limit of Detection; Malus - chemistry; Metal Nanoparticles - chemistry; Pesticides; Plant Leaves - chemistry; Quantum dots; Quantum Dots - chemistry; Reproducibility of Results; Selectivity; Sensitivity and Specificity; Sensors; Silver; Thickness; Trifluralin; Trifluralin - analysis; Wearable Electronic Devices; wearable sensor; Wearable technology
• ISSN: 0952-3499; 1099-1352
• DOI: 10.1002/jmr.2923

In this study, a flexible glove‐based electrochemical sensor as a wearable point‐of‐use screening tool has been fabricated for defense and food security applications. To design the wearable glove‐based sensor, we drew conductive patterns on the fingers of a rubber glove via gold@silver‐modified graphene quantum dots (Au@Ag core‐shell/graphene quantum dots [GQDs]) nano‐ink with optimal thickness. Then, this platform is combined with a portable electrochemical analyzer for on‐site detection of trifluralin pesticide in the range of 10 nM to 1 mM with the low limit of quantification (LLOQ) of 10 nM. The high efficiency and distinction of the trifluralin at specified concentrations in real leaf and apple samples were performed by simply touching with the glove and in spikes solution by immersing of fingertips. With their high sensitivity, selectivity, rapid, and easy operation pesticide analysis, these glove‐embedded sensors can also be engaged in on‐site monitor of other chemical threats and can be expanded to water and environmental samples. A new platform for the on‐site recognition of Trifluralin based on wearable flexible sensor using Lab‐on‐glove method was provided.