
ACS Applied Polymer Materials, Год журнала: 2025, Номер 7(6), С. 3842 - 3852
Опубликована: Март 7, 2025
The ability to distinguish scents, volatile organic compounds (VOCs), and their mixtures is critical in agriculture, food safety, public health. This study introduces a proof-of-concept approach for VOC scent distinction, leveraging polymer brush arrays with diverse chemical compositions designed interact various VOCs scents. When or scents are exposed the array, they produce distinct mass absorption patterns different brushes, effectively creating "fingerprints". Scents can be recognized without having know of individual components. allows distinction technique, mimicking recognition within mammalian olfactory system. To demonstrate we synthesized zwitterionic, hydrophobic, hydrophilic, using surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain-transfer polymerization eosin Y triethanolamine as catalysts. brushes were then vapors single-compound complex consisting many VOCs, such water-ethanol mixture, rosemary oil, lavender whiskey Quartz crystal microbalance measurements dissipation monitoring (QCM-D) show clear difference these that fingerprints identified. Our aims pave way universal electronic nose sensors by combining from brush-coated surfaces.
Язык: Английский