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Projecte llegit

Títol: Espectroscopia de impedancia eléctrica de alta frecuencial para la caracterización de tejidos biológicos

Estudiants que han llegit aquest projecte:

Director/a: SERRANO FINETTI, ERNESTO

Departament: EEL

Títol: Espectroscopia de impedancia eléctrica de alta frecuencial para la caracterización de tejidos biológicos

Data inici oferta: 08-01-2020     Data finalització oferta: 08-09-2020


Estudis d'assignació del projecte:
    GR ENG SIS TELECOMUN
Tipus: Individual
 
Lloc de realització: EETAC
 
Paraules clau:
analog design, electrical impedance measurements, programming
 
Descripció del contingut i pla d'activitats:
Electrical impedance spectroscopy (EIS) is a kind of
measurement that yields information about the composition of
any material in a non-destructive way. When coming down to
structured biological tissues (cellular tissues), EIS opens up
the possibility of studying the extracellular and
intracellular mediums as well as the cell membrane hence it is
possible to relate these measurements with specific
pathologies. The aim of this work is to develop a minimum
analog front-end for measuring the impedance of different
tissues with the Analog Discovery 2
(https://reference.digilentinc.com/reference/instrumentation/a
nalog-discovery-2/start), capable of signal generation and
acquisition up to 10 MHz. The target application is related to
the early detection of some of the side effects of diabetes.
The tasks include:
-Analysis, design and implementation of fully-differential
circuits
-Experimental verification (with known impedances) and
validation
-Compare the performance of different digital techniques to
estimate the performance of the impedance (FFT, digital
demodulation, synchronous sampling)
-Programming of a suitable user interface (C++, Python and
LabView are possible platforms)
 
Overview (resum en anglès):
Electrical impedance spectroscopy (EIS) is a measurement technique that provides information on the electrical characteristics of a material, that helping these to know the composition of any material in a non-destructive way.

Regarding structured biological tissues (cellular tissues), EIS opens the possibility of studying the extracellular and intracellular mediums as well as the cell membrane, making it possible to characterize different tissues, which opens the possibility of differentiating pathological tissues if their electrical characteristics are affected.

The objective of this work is to develop a completely differential analogic front-end, both in generation and detection, for measuring the impedance of different tissues with the Analog Discovery 2, capable of signal generation and acquiring up to 10 MHz.

The target application is the detection of skin lesions early. In the future, it is intended to study diabetic patients.

The tasks include:

-Analysis, design and implementation of fully differential circuits.
-Experimental verification (with known impedances) and validation.
-Compare the performance of different digital techniques to estimate the performance of the impedance (FFT, digital demodulation, synchronous sampling).
-Programming of a suitable user interface (C++, Python and LabView are possible platforms).

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