
Advanced Materials Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Май 12, 2025
Abstract Nanoplastics are persistent pollutants that may act as vectors of various inorganic and organic pollutants. Due to their small size complex nature, identification in environmental samples is still extremely difficult. The goal this work investigate the ability an electrolyte‐gated carbon nanotube field‐effect transistor (EG‐CNTFET) based sensor detect polystyrene nanoplastics (PS NPs) a more realistic scenario presence typical pollutant such mercury. To do so, PS NPs/Hg 2+ complexes formed through sorption mercury ions (Hg 2 ⁺ on surface carboxylated NPs, formation Hg‐O bonds, with efficiency up 7.9% w NP −1 . EG‐CNTFET effectively detects these water, increase normalized current 27.4% (±12.7) after 5 min measurement stable values reached 25 min. As proved, not differ significantly from pure NPs (29.7% (±6.9)). Therefore, study demonstrates sensitivity developed affected by modifications induced Hg binding, opening possibility for its use real‐time samples.
Язык: Английский