An optical sensor combining surface plasmon resonance, light extinction, and near-critical angle reflection, for thin liquid film biochemical sensing

Solis-Tinoco, V.; Morales-Luna, Gesuri; Acevedo-Barrera, Anays; Ochoa, Abraham; Vázquez-Estrada, Omar; Olguín, Luis F.; Garcı́a-Valenzuela, Augusto

doi:10.1016/j.optlaseng.2022.107137

Cited by 3 publications

(1 citation statement)

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“…The calculated sensitivity of SPR to the surface refractive index was 168.35°/RIU. The experiments were performed to evaluate the reflectivity curve from the sample containing E. coli at a concentration of 4.7 × 10 8 CFU/mL [ 57 ]. Another SPR biosensor was designed using flexible photonic crystal fibers.…”

Section: Surface Plasmon Resonance (Spr)mentioning

confidence: 99%

Recent Progress in Spectroscopic Methods for the Detection of Foodborne Pathogenic Bacteria

et al. 2022

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Detection of foodborne pathogens at an early stage is very important to control food quality and improve medical response. Rapid detection of foodborne pathogens with high sensitivity and specificity is becoming an urgent requirement in health safety, medical diagnostics, environmental safety, and controlling food quality. Despite the existing bacterial detection methods being reliable and widely used, these methods are time-consuming, expensive, and cumbersome. Therefore, researchers are trying to find new methods by integrating spectroscopy techniques with artificial intelligence and advanced materials. Within this progress report, advances in the detection of foodborne pathogens using spectroscopy techniques are discussed. This paper presents an overview of the progress and application of spectroscopy techniques for the detection of foodborne pathogens, particularly new trends in the past few years, including surface-enhanced Raman spectroscopy, surface plasmon resonance, fluorescence spectroscopy, multiangle laser light scattering, and imaging analysis. In addition, the applications of artificial intelligence, microfluidics, smartphone-based techniques, and advanced materials related to spectroscopy for the detection of bacterial pathogens are discussed. Finally, we conclude and discuss possible research prospects in aspects of spectroscopy techniques for the identification and classification of pathogens.

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Section: Surface Plasmon Resonance (Spr)mentioning

confidence: 99%