期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 71, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2022.3167766
关键词
Ammonia; characterization; interdigited transducer (IDT) sensor; rapid prototyping; yttrium stabilized zirconium (YSZ) oxide
资金
- PKU Smart Sensor Project [Action 1.1.5 POR FESR 2014-2020, CUP G89J18000710007]
This article presents the design, realization, and characterization of a low-cost sensor for ammonia detection, which is part of a complex system aimed at assessing phenylalanine levels in biological fluids. The experimental results suggest further development of this approach is promising, with the sensor prototype showing good responsivity, resolution, and span-to-resolution ratio.
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).
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