2025
Autores
Brito, L; Cepa, B; Brito, C; Leite, Â; Pereira, MG;
Publicação
European Journal of Investigation in Health, Psychology and Education
Abstract
2025
Autores
Ferreira, MC; Dias, TG;
Publicação
Lecture Notes in Mobility - Transport Transitions: Advancing Sustainable and Inclusive Mobility
Abstract
2025
Autores
dos Santos, PSS; Mendes, JP; Pastoriza-Santos, I; Juste, JP; de Almeida, JMMM; Coelho, LCC;
Publicação
SENSORS AND ACTUATORS B-CHEMICAL
Abstract
The lower refractive index sensitivity (RIS) of plasmonic nanoparticles (NP) in comparison to their plasmonic thin films counterparts hindered their wide adoption for wavelength-based sensor designs, wasting the NP characteristic field locality. In this context, high aspect-ratio colloidal core-shell Ag@Au nanorods (NRs) are demonstrated to operate effectively at telecommunication wavelengths, showing RIS of 1720 nm/RIU at 1350 nm (O-band) and 2325 nm/RIU at 1550 nm (L-band), representing a five-fold improvement compared to similar Au NRs operating at equivalent wavelengths. Also, these NRs combine the superior optical performance of Ag with the Au chemical stability and biocompatibility. Next, using a side-polished optical fiber, we detected glyphosate, achieving a detection limit improvement from 724 to 85 mg/L by shifting from the O to the C/L optical bands. This work combines the significant scalability and cost-effective advantages of colloidal NPs with enhanced RIS, showing a promising approach suitable for both point-of-care and long-range sensing applications at superior performance than comparable thin film-based sensors in either environmental monitoring and other fields.
2025
Autores
Costa, V; Soares, T; Bitencourt, L; Dias, B; Deccache, E; Silva, B; Bonatto, B; Filho, W; Faria, A;
Publicação
Renewable and Sustainable Energy Reviews
Abstract
2025
Autores
Nelson Rodrigues; António Coelho; Rosaldo Rossetti;
Publicação
Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications
Abstract
2025
Autores
Kurteshi, R; Almeida, F;
Publicação
Knowledge Sharing and Fostering Collaborative Business Culture
Abstract
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