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Espectrofotòmetre portable per a aplicacions de bioenginyeria

Authors: Encinas Ferrer, Eduard;

Espectrofotòmetre portable per a aplicacions de bioenginyeria

Abstract

Este proyecto parte de la necesidad de medir el espectro óptico tanto de absorción como de transmisión de estructuras de nanoesferas para caracterizar y analizar su posible uso como sensores en un futuro. Con esta idea se diseña un espectrofotómetro portátil y de bajo coste junto con una aplicación para el tratamiento de los datos en tiempo real. Está basado en un módulo de microespectrofotómetro existente, una placa de microcontrolador compatible con Arduino y un aplicativo desarrollado en Matlab. Se han caracterizan las derivas temporales a corto plazo y las pérdidas producidas por el desalineamiento entre las lentes. Se comprueba el correcto funcionamiento del espectrofotómetro midiendo el cambio del espectro óptico en función del pH en una aplicación auxiliar, el viraje de una solución de rojo fenol en función del pH. Finalmente se realiza un set-up mecánico para poder posicionar las muestras y medir el espectro de absorción de las nanoesferas de forma repetible.

Aquest projecte parteix de la necessitat de mesurar l'espectre òptic tant d'absorció com de transmissió d'estructures de nanoesferes per tal de caracteritzar-les i analitzar el seu possible ús com a sensors en un futur. Amb aquesta idea es dissenya un espectrofotòmetre portable i de baix cost juntament amb una aplicació pel tractament de les dades en temps real. Està basat en un mòdul de microespectrofotòmetre existent, una placa de microcontrolador compatible amb Arduino i un aplicatiu desenvolupat en Matlab. S'han caracteritzen les derives temporals a curt termini i les pèrdues produïdes pel desalineament entre les lents. Es comprova el correcte funcionament de l'espectrofotòmetre mesurant el canvi de l'espectre òptic en funció del pH en una aplicació auxiliar, el viratge d'una solució de roig de fenol en funció del pH. Finalment es realitza un set-up mecànic per poder posicionar les mostres i mesurar l'espectre d'absorció de les nanoesferes de forma repetible.

This project is based on the need to measure the optical spectrum of absorption and transmission of nanosphere structures in order to characterize them and analyze their possible use as sensors in the future. With this idea a portable and low-cost spectrophotometer is designed along with an application for real-time data processing. It is based on an existing microspectrophotometer module, an Arduino compatible microcontroller board and an application developed in Matlab. Short-term temporal drifts and losses caused by misalignment between lenses have been characterized. The correct operation of the spectrophotometer is checked by measuring the change of the optical spectrum as a function of pH in an auxiliary application, the turning of a solution of phenol red as a function of pH. Finally, a mechanical set-up is performed to position the samples and measure the absorption spectrum of the nanospheres in a repeatable manner.

Development of a portable spectrometer using discrete devices, making an adaptable design. As a second task, a set of applications for bioengineering will be developed

Country
Spain
Keywords

bioengineering, Nanopartícules, Programación de aplicación, espectrometría, spectrometry, bioingeniería, nanoparticulas, Bioenginyeria -- Instrumentació, Application software, application programming, Nanoparticles, Programari d'aplicació, Espectrometria, nanoparticles, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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