Development of a Hydrogen Gas Sensor Using a Double Saw Resonator System at Room Temperature

Yunusa, Zainab; Hamidon, Mohd Nizar; Ismail, Alyani; isa, maziah md; Yaacob, Mohd Hanif; Rahmanian, S.; Ibrahim, Siti Azlida; Shabaneh, A. A.

doi:10.3390/s150304749

Cited by 29 publications

(36 citation statements)

References 32 publications

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“…A nondegradable electrically conducting polymer polyaniline has been used as gas sensors, 125–127 high-performance super capacitors, 128, 129 and batteries, 130 and in cotton fabrics as a way to provide protection from UV radiation. 131 PANI has been also been explored as a scaffold material for tissue regeneration and drug delivery applications.…”

Section: Conductive Polymers For Nerve Growth Conduitsmentioning

confidence: 99%

Peripheral Nerve Regeneration Strategies: Electrically Stimulating Polymer Based Nerve Growth Conduits

Anderson

Shelke

Manoukian

et al. 2015

Crit Rev Biomed Eng

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Treatment of large peripheral nerve damages ranges from the use of an autologous nerve graft to a synthetic nerve growth conduit. Biological grafts, in spite of many merits, show several limitations in terms of availability and donor site morbidity, and outcomes are suboptimal due to fascicle mismatch, scarring, and fibrosis. Tissue engineered nerve graft substitutes utilize polymeric conduits in conjunction with cues both chemical and physical, cells alone and or in combination. The chemical and physical cues delivered through polymeric conduits play an important role and drive tissue regeneration. Electrical stimulation (ES) has been applied toward the repair and regeneration of various tissues such as muscle, tendon, nerve, and articular tissue both in laboratory and clinical settings. The underlying mechanisms that regulate cellular activities such as cell adhesion, proliferation, cell migration, protein production, and tissue regeneration following ES is not fully understood. Polymeric constructs that can carry the electrical stimulation along the length of the scaffold have been developed and characterized for possible nerve regeneration applications. We discuss the use of electrically conductive polymers and associated cell interaction, biocompatibility, tissue regeneration, and recent basic research for nerve regeneration. In conclusion, a multifunctional combinatorial device comprised of biomaterial, structural, functional, cellular, and molecular aspects may be the best way forward for effective peripheral nerve regeneration.

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Section: Conductive Polymers For Nerve Growth Conduitsmentioning

confidence: 99%

Peripheral Nerve Regeneration Strategies: Electrically Stimulating Polymer Based Nerve Growth Conduits

Anderson

Shelke

Manoukian

et al. 2015

Crit Rev Biomed Eng

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“…Also, the spectrum showed the carbonyl characteristic broad peak at 1650 cm -1 , which was assigned to the carbonyl group from quinine or ring structure. [17] Moreover, at 1480 cm -1 suggesting -C-H and 1380 cm -1 showed the -C-O-and 1250 cm -1 showed the O=C-OH which was the special characteristic of carbon nanoparticles synthesized using soot [18].…”

Section: Resultsmentioning

confidence: 99%

One-pot Synthesis of Octyne-Ruthenium on Carbon Nanoparticles

2017

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Abstract. The attempts to manipulate ruthenium nanoparticle by the passivation of π bonds linkage is of interest for many years. That is the way to enhance its optical properties and fluorescence characteristics which can promote the usage for sensor application. Other view, the usage of carbon nanoparticle is governed in many aspects including its fluorescence properties. Therefore, the combination between those two valued nanoparticles was set by conducting the simple synthesis method. With the as-prepared carbon nanoparticles, all other reagents (ruthenium (III) chloride, octyne and Sodium borohydride) were mixed in the same batch. The ratio of carbon substrate, ruthenium (III) chloride and octyne was 10: 1: 3. The particle yielded was then purified and subjected to characterize using some spectroscopy techniques including photoluminescence. The results showed that size of carbon particle before and after ruthenium deposition were 5.0 and 6.3 nanometers, respectively. Octyne was coordinated self-assembly on the ruthenium surface which was 8.1 nanometers in diameter. Moreover, octyne-protected ruthenium on carbon nanoparticles showed the remarkably increasing of fluorescence Intensity. Therefore, the functionalization of carbon nanoparticle with octyne-ruthenium can be a promising strategy to develop a novel complex of ruthenium.

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“…Thus from Figures 13 and 14, it is evident that when the sensor is exposed to different concentrations of ethanol gas the resonance frequencies shift toward the lower side due to the increase in resistance of the sensitive layer because of the adsorption of gas molecules. 7,[19][20][21] The change in frequency shift (Δf ) of the sensor increases with the increase in the concentration of ethanol gas while the center frequencies move toward the lower side. This phenomenon can also be dealt with using the quality factor.…”

Section: Frequency Deviation Measurement (δF) For the Zno Layermentioning

confidence: 99%

A compact tri‐band microwave resonator for ethanol gas detection

Alsath

Savarimuthu

Erattaiselvam

et al. 2019

Int J RF Microw Comput Aided Eng

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This article presents the design, simulation, fabrication, and testing of a compact two‐port microwave resonator coated with nanomaterials for ethanol gas sensing applications. The proposed gas sensor consists of a transmission line loaded with three triangular split ring resonators for ethanol detection at three frequency bands viz. 2.2, 4.6, and 6.3 GHz. The transmission line has all‐pass characteristics in which band gaps are introduced using three split ring resonators. The TiO2 and ZnO nanorods are used as sensitive layers for the proposed sensing application. The nanorods, which are grown on a glass substrate of thickness 1 mm, are loaded on to the two‐port microwave resonator making the device sensitive to ethanol. The microwave behavior of the sensor is analyzed using the scattering parameters. The absorption of the ethanol gas causes frequency detuning which is used to analyze the presence of ethanol and its concentration. From the experiments, it is understood that there is an increase in the frequency shift with an increase in the concentration of ethanol gas. The sensing device with ZnO as a sensitive layer showed a higher average sensitivity of 2.35 compared to TiO2 whose average sensitivity is 1.29.

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Development of a Hydrogen Gas Sensor Using a Double Saw Resonator System at Room Temperature

Cited by 29 publications

References 32 publications

Peripheral Nerve Regeneration Strategies: Electrically Stimulating Polymer Based Nerve Growth Conduits

Peripheral Nerve Regeneration Strategies: Electrically Stimulating Polymer Based Nerve Growth Conduits

One-pot Synthesis of Octyne-Ruthenium on Carbon Nanoparticles

A compact tri‐band microwave resonator for ethanol gas detection

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