A Minimal Electronic Nose Based on Graphene Functionalized with Metalated Pyrazinoporphyrazines and Phthalocyanines for Ammonia, Benzene, and Hydrogen Sulfide Discrimination DOI Creative Commons
Sonia Freddi, Luca Vaghi, Andrea Penoni

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(5), P. 165 - 165

Published: May 5, 2025

The development of electronic noses is, nowadays, essential for several applications, including breath analysis and industrial security. Ammonia, benzene, hydrogen sulfide are particularly important due to their environmental health impacts. Here, graphene-based sensors, functionalized with unconventional in-house synthesized zinc copper octyl-pyrazinoporphyrazines commercially available phthalocyanine, have been prepared. Enhanced solubility given by the octyl chains allowed us exploit drop-casting as a straightforward functionalization technique. sensors demonstrated excellent performance detecting ammonia, single sensor, competitive detection limit high sensitivity compared state art. In particular, enabled sulfide, which no response is observed bare graphene, lowered all gases graphene. Additionally, prepared assembled into an e-nose that shows promising potentiality be used both medical applications thanks its discrimination capability mixtures.

Language: Английский

Advances in Cost-Effective Chemosensors for Sustainable Monitoring in Food Safety and Processing DOI Creative Commons
Camelia Albu,

Ana Chira,

Gabriel Lucian Radu

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(3), P. 113 - 113

Published: March 20, 2025

Cost-effective chemosensors have become an indispensable tool for sustainable monitoring in food safety and processing, where there is urgent need affordable, efficient, real-time analytical solutions. This review discusses recent advances low-cost chemosensor technologies, highlighting developments materials, miniaturization, integration into portable accessible platforms. The focus on applications detecting contaminants, quality, ensuring production processing. also addresses the challenges related to sensor sensitivity, selectivity, operational stability provides insights future directions role of supporting practices these important sectors.

Language: Английский

Citations

0
A Minimal Electronic Nose Based on Graphene Functionalized with Metalated Pyrazinoporphyrazines and Phthalocyanines for Ammonia, Benzene, and Hydrogen Sulfide Discrimination DOI Creative Commons
Sonia Freddi, Luca Vaghi, Andrea Penoni

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(5), P. 165 - 165

Published: May 5, 2025

The development of electronic noses is, nowadays, essential for several applications, including breath analysis and industrial security. Ammonia, benzene, hydrogen sulfide are particularly important due to their environmental health impacts. Here, graphene-based sensors, functionalized with unconventional in-house synthesized zinc copper octyl-pyrazinoporphyrazines commercially available phthalocyanine, have been prepared. Enhanced solubility given by the octyl chains allowed us exploit drop-casting as a straightforward functionalization technique. sensors demonstrated excellent performance detecting ammonia, single sensor, competitive detection limit high sensitivity compared state art. In particular, enabled sulfide, which no response is observed bare graphene, lowered all gases graphene. Additionally, prepared assembled into an e-nose that shows promising potentiality be used both medical applications thanks its discrimination capability mixtures.

Language: Английский

Citations

0