Fluorescence-Based Sensors

Orellana, Guillermo

doi:10.1007/1-4020-4611-1_6

Cited by 19 publications

(14 citation statements)

References 39 publications

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“…A biochip can be considered an array of individual biosensors that can be individually monitored and generally are used for the analysis of multiple analytes. Two main classes can be distinguished label-free devices, in which the interaction analyte/sensitive layer gives rise to a modification of the optical signal due to the change of the refractive index of the layer deposited on the substrate [5,6], and label-based devices, in which luminescent labeling is used to get an optical signal depending on the investigated analyte [7,8]. Both approaches have advantages and disadvantages.…”

Section: Not Invasive Sensorsmentioning

confidence: 99%

The optical solution in biosensing

Baldini

2011

2011 ICO International Conference on Information Photonics

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Section: Not Invasive Sensorsmentioning

confidence: 99%

The optical solution in biosensing

Baldini

2011

2011 ICO International Conference on Information Photonics

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“…The fluorescence phenomenon is multifaceted and has several features that can be the basis of a biosensing design. Its versatility includes intensity-, kinetic-, wavelength-and anisotropy-based measurements [10].…”

Section: Fluorescence Techniques In Biosensing With Fiber Optics and mentioning

confidence: 99%

“…In fact, under very strict conditions, the detection of a single molecule may be attained [44,45]. On the other hand, the use of the two wavelengths involved in the process (excitation and emission) provides extra selectivity since either of them or both can be controlled [8,10].…”

Section: Fluorescence Intensitymentioning

confidence: 99%

“…Therefore, a variety of possibilities exists to improve biosensor performance. For example, the excitation or the emission wavelengths of the luminophore can be adequately tuned to improve method selectivity and, in addition, the emission kinetics as well as the anisotropy properties of the luminescent compound may add specificity to the measurement in comparison to other optical methods [10]. Recent biosensor reviews [11e15] confirm that fluorescence-based transduction, in whichever of its possibilities, is one of the most popular optical detection methods used in biosensing.…”

Section: Introductionmentioning

confidence: 99%

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Fluorescence based fiber optic and planar waveguide biosensors. A review

Benito‐Peña

Valdés

Glahn-Martínez

et al. 2016

Analytica Chimica Acta

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The application of optical biosensors, specifically those that use optical fibers and planar waveguides, has escalated throughout the years in many fields, including environmental analysis, food safety and clinical diagnosis. Fluorescence is, without doubt, the most popular transducer signal used in these devices because of its higher selectivity and sensitivity, but most of all due to its wide versatility. This paper focuses on the working principles and configurations of fluorescence-based fiber optic and planar waveguide biosensors and will review biological recognition elements, sensing schemes, as well as some major and recent applications, published in the last ten years. The main goal is to provide the reader a general overview of a field that requires the joint collaboration of researchers of many different areas, including chemistry, physics, biology, engineering, and material science.

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“…La etnografía ha sido desarrollada en el grupo GSOLFA (Grupo de sensores ópticos químicos y fotoquímica aplicada) que se encuentra en la Facultad de Ciencias Químicas de la Universidad Complutense de Madrid. El objetivo declarado del grupo es el desarrollo de sensores capaces de cuantificar especies químicas para su posterior transferencia a aplicaciones medioambientales, tecnológicas e industriales (Orellana y García-Fresnadillo, 2004;Orellana, 2006). Su propósito consiste en crear aparatos capaces de actuar como sondas que ofrezcan datos fiables acerca de ciertas propiedades químicas en entornos de interés industrial.…”

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The fluid sensor. Narrative of a laboratory study

Prestel

2011

ATHENEAD

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Resumen AbstractEn el presente artículo presento los resultados preliminares del trabajo de campo que he venido realizando durante los últimos dos años y que consiste en una etnografía de laboratorio dirigida a la realización de una tesis doctoral en el marco de la Teoría del Actor-Red. Enfrentado al desafío que supone emprender la redacción de mi trabajo, analizo las diferentes formas de narrar lo que acontece en el laboratorio. Finalmente, concluyo proponiendo la posibilidad de describir el sensor que ha sido objeto de mi estudio como una entidad múltiple que tal vez pueda describirse mediante el concepto de envoltura. In this article, I present the preliminary outcomes of the field work that I have been developing during the last two years, a laboratory study based on the ActorNetwork theory which will be the nucleus of my Ph.D. thesis. Facing the challenge of writing this thesis, I analyze different possible ways of presenting what I have been witnessing in the laboratory. Finally, Ipropose the possibility of describing the sensor I have been studying as a multiple entity which perhaps might be described using the concept of wrapping. Han pasado ya cerca de tres décadas desde la publicación de los primeros estudios etnográficos de laboratorio (Latour y Woolgar, 1979Woolgar, /1995Knorr-Cetina, 1981;Lynch, 1985;Traweek, 1988). Pese a la controversia inicial que acompañó a estos trabajos seminales y al debate aún existente acerca de sus verdaderos logros (Doing, 2008), la realización de etnografías de laboratorio se ha convertido desde entonces en parte del repertorio habitual de técnicas de investigación en estudios de la ciencia, particularmente dentro del marco de la Teoría del Actor-Red. La potencia y riqueza de este tipo de aproximación queda claramente de relieve al considerar el enorme interés que pueden suscitar algunos trabajos dentro de esta tradición (Law, 1994).Pese a tratarse de una técnica de investigación consolidada y fructífera, el número de etnografías de laboratorio realizadas en España hasta la fecha es relativamente escaso (Pallí, 2006;Ferreira, 2007).Por otra parte, los nuevos planteamientos teóricos que se han propuesto en los últimos tiempos dentro del marco de la Teoría del Actor-Red permiten emprender este tipo de investigación con una perspectiva 85

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Fluorescence-Based Sensors

Cited by 19 publications

References 39 publications

The optical solution in biosensing

The optical solution in biosensing

Fluorescence based fiber optic and planar waveguide biosensors. A review

The fluid sensor. Narrative of a laboratory study

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