Publications by authors named "Maria Simone Soares"
The purpose of this article is to propose an optical fiber sensor probe based on the localized surface plasma resonance (LSPR) technique for the detection of creatinine in aquaculture. The sensing probe is functionalized through the use of gold nanoparticles (AuNPs), niobium carbide (NbCTx) MXene, and creatinase (CA) enzyme. The intrinsic total internal reflection (TIR) mechanism is modified to increase the evanescent field intensity using a heterogeneous core mismatch and tapering probe structure (i.
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- - Optical fiber technology, particularly tilted fiber Bragg gratings (TFBGs), offers advancements in biosensing, enabling smaller sensors and real-time monitoring of substances like heart failure biomarkers.
- - A study focused on various analysis methods for detecting N-terminal B-type natriuretic peptide (NT-proBNP) found that tracking the lower envelope of spectral data provided the best sensitivity for bare (0.75 ng/mL) and plasmonic (0.19 ng/mL) TFBGs.
- - The findings emphasize how the choice of analysis method affects detection limits and results, underscoring the importance of consistency when comparing biosensor performance across studies.
The evolution of optical fiber technology has revolutionized a variety of fields, from optical transmission to environmental monitoring and biomedicine, given their unique properties and versatility. For biosensing purposes, the light guided in the fiber core is exposed to the surrounding media where the analytes of interest are detected by different techniques, according to the optical fiber configuration and biofunctionalization strategy employed. These configurations differ in manufacturing complexity, cost and overall performance.
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