ArticleSensors (Basel, Switzerland)2023
Fabrication and Optimization of Nafion as a Protective Membrane for TiN-Based pH Sensors.
Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 13 citations in OpenAlex.
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- Miniaturized Capsule System Toward Real-Time Electrochemical Detection of HAdvanced healthcare materials · 2024Article
- Moving towards in pouch diagnostics for ostomy patients: exploiting the versatility of laser induced graphene sensors.Journal of materials science · 2023Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
In this study, a solid-state modified pH sensor with RF magnetron sputtering technology was developed. The sensor consists of an active electrode consisting of a titanium nitride (TiN) film with a protective membrane of Nafion and a reference glass electrode of Ag/AgCl. The sensitivity of the pH sensor was investigated. Results show a sensor with excellent characteristics: sensitivity of 58.6 mV/pH for pH values from 2 to 12, very short response time of approximately 12 s in neutral pH solutions, and stability of less than 0.9 mV in 10 min duration. Further improvement in the performance of the TiN sensor was studied by application of a Nafion protective membrane. Nafion improves the sensor sensitivity close to Nernstian by maintaining a linear response. This paves the way to implement TiN with Nafion protection to block any interference species during real time applications in biosensing and medical diagnostic pH sensors.
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