Functionalized carbon nanoparticles for smartphone-based sensing of formaldehyde.

ABSTRACT: Formaldehyde (FA) is a volatile organic compound of significant environmental and health concern due to its toxicity and widespread presence in indoor and industrial settings. The development of sensitive, selective, and user-friendly detection systems for FA is therefore of critical importance. In this work, we report a novel fluorescent nanosensor based on carbon nanoparticles functionalized with dopamine for the detection of FA in both aqueous and gaseous phases. The system achieved remarkable limits of detection-87 ppb in water and 10 ppb in air-well below the safety thresholds recommended by the World Health Organization. The sensing performance arises not only from the intrinsic photophysical properties of the carbon core but also from its architecture, which allows the anchoring of

SUBMITTER: Cavallaro A 

PROVIDER: S-EPMC12687286 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature