ArticleSensors (Basel, Switzerland)2018
Effects of Center Metals in Porphines on Nanomechanical Gas Sensing.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 29 citations in OpenAlex.
- Sensing signal augmentation by flow rate modulation of carrier gas for accurate differentiation of complex odours.Science and technology of advanced materials · 2024Article
- Repetitive Direct Comparison Method for Odor Sensing.Biosensors · 2023Article
- Recent Advances in Nanomechanical Membrane-Type Surface Stress Sensors towards Artificial Olfaction.Biosensors · 2022Review
- Conformational Control of Chemical Reactivity for Surface-Confined Ru-Porphyrins.Angewandte Chemie (International ed. in English) · 2021Article
- Development of a Mobile Device for Odor Identification and Optimization of Its Measurement Protocol Based on the Free-Hand Measurement.Sensors (Basel, Switzerland) · 2020Article
- Development of a Colorimetric Sensor for Autonomous, Networked, Real-Time Application.Sensors (Basel, Switzerland) · 2020Review
- Finite Element Analysis of Interface Dependence on Nanomechanical Sensing.Sensors (Basel, Switzerland) · 2020Article
- Free-hand gas identification based on transfer function ratios without gas flow control.Scientific reports · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Porphyrin is one of the most promising materials for realizing a practical artificial olfactory sensor system. In this study, we focus on non-substituted porphyrins—porphines—as receptor materials of nanomechanical membrane-type surface stress sensors (MSS) to investigate the effect of center metals on gas sensing. By omitting the substituents on the tetrapyrrole macrocycle of porphyrin, the peripheral interference by substituents can be avoided. Zinc, nickel, and iron were chosen for the center metals as these metalloporphines show different properties compared to free-base porphine. The present study revealed that iron insertion enhanced sensitivity to various gases, while zinc and nickel insertion led to equivalent or less sensitivity than free-base porphine. Based on the experimental results, we discuss the role of center metals for gas uptake from the view point of molecular interaction. We also report the high robustness of the iron porphine to humidity, showing the high feasibility of porphine-based nanomechanical sensor devices for practical applications in ambient conditions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.