ArticleElectrochimica acta2018
Catalytic selectivity of metallophthalocyanines for electrochemical nitric oxide sensing.
Article in Electrochimica acta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Selectivity optimization of real-time and continuous sensing of endogenous HMikrochimica acta · 2025Article
- Employing Triphenylene-Based, Layered, Conductive Metal-Organic Framework Materials as Electrochemical Sensors for Nitric Oxide in Aqueous Media.ACS sensors · 2025Article
- Electrochemical Detection of Gasotransmitters: Status and Roadmap.ACS sensors · 2024Review
- Recent Advances in Phthalocyanine and Porphyrin-Based Materials as Active Layers for Nitric Oxide Chemical Sensors.Sensors (Basel, Switzerland) · 2022Review
- Study of the Interaction of an Iron Phthalocyanine Complex over Surface Modified Carbon Nanotubes.Materials (Basel, Switzerland) · 2021Article
- CuO/Cu-MOF nanocomposite for highly sensitive detection of nitric oxide released from living cells using an electrochemical microfluidic device.Mikrochimica acta · 2021Article
- A flexible and physically transient electrochemical sensor for real-time wireless nitric oxide monitoring.Nature communications · 2020Article
- A direct and selective electrochemical hydrogen sulfide sensor.Analytica chimica acta · 2019Article
- Nitric oxide detection methodsMedical gas researchReview
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
The catalytic properties of metallophthalocyanine (MPc) complexes have long been applied to electrochemical sensing of nitric oxide (NO) to amplify sensitivity and reduce the substantial overpotential required for NO oxidation. The latter point has significant ramifications for in situ amperometric detection, as large working potentials oxidize biological interferents (e.g., nitrite, L-ascorbate, and carbon monoxide). Herein, we sought to isolate and quantify, for the first time, the selectivity benefits of MPc modification of glassy carbon electrodes. A series of the most catalytically active MPc complexes towards NO, including Fe(II)Pc, Co(II)Pc, Ni(II)Pc, and Zn(II)Pc, was selected and probed for NO sensing ability under both differential pulse voltammetry (DPV) and constant potential amperometry (CPA). Data from DPV measurements provided information with respect to MPc signal sensitivity amplification (~1.5×) and peak shifting (100-200 mV). Iron-Pc exerted the most specific catalytic activity towards NO over nitrite. Catalyst-enabled reduction of the working potential under CPA was found to improve selectivity for NO over high potential interferents, regardless of MPc. However, impaired selectivity against low potential interferents was also noted.
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