Title
A Capacitive Sensor, Exploiting a YSZ Functional Layer, for Ammonia Detection
Abstract
In different fields, the need for low-cost sensors allowing an early detection of (bio)quantities is emerging. This article deals with the design, realization, and characterization of a low-cost sensor for ammonia detection realized by fast prototyping techniques. The sensor is part of a more complex system aimed to assess the level of phenylalanine levels in biological fluids (blood, saliva, or urine), which would allow the development of a new approach for the self-monitoring of patients with the phenylketonuria (PKU) metabolic disorder. The obtained experimental results encourage the further development of the proposed approach. In particular, the sensor behavior has been investigated for an ammonia concentration in the range [0-2000] mu M. The developed sensor prototype shows a responsivity of 3.53 x 10(-14) F/mu M, a resolution of 0.15 mu M, and a span-to-resolution of 1.3 x 10(4).
Year
DOI
Venue
2022
10.1109/TIM.2022.3167766
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Keywords
DocType
Volume
Ammonia, characterization, interdigited transducer (IDT) sensor, rapid prototyping, yttrium stabilized zirconium (YSZ) oxide
Journal
71
ISSN
Citations 
PageRank 
0018-9456
0
0.34
References 
Authors
0
10