Room temperature operable ultra-sensitive ammonia sensor based on polyaniline-silver (PANI-Ag) nanocomposites synthesized by ultra-sonication

Adhav, Pravin; Pawar, Digamber; Diwate, Balasaheb; Bora, Manisha; Jagtap, S.V.; Chourasia, Ashish; Dallavalle, Sabrina; Chabukswar, Vasant V.

doi:10.1016/j.synthmet.2022.117237

Cited by 15 publications

(2 citation statements)

References 34 publications

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“…111 Ag nanoparticles have high conductivity and excellent stability. Adhav et al 112 synthesized PANI-Ag nanocomposites by an in situ oxidative polymerization method using ammonium persulphate as an oxidizing agent. In this process, Ag nanoparticles synthesized using an ultrasonic processor were added.…”

Section: Pani-metal Compositesmentioning

confidence: 99%

Recent progress in polyaniline-based chemiresistive flexible gas sensors: design, nanostructures, and composite materials

Wen,

Wang,

Feng

et al. 2024

J. Mater. Chem. A

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Section: Pani-metal Compositesmentioning

confidence: 99%

Recent progress in polyaniline-based chemiresistive flexible gas sensors: design, nanostructures, and composite materials

Wen,

Wang,

Feng

et al. 2024

J. Mater. Chem. A

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“…PANI can significantly improve the sensitivity of TENG-based sensors by providing efficient charge transport pathways [ 65 , 66 , 67 , 68 , 69 , 70 ]. Additionally, PANI can be chemically modified to achieve selective recognition of target analytes.…”

Section: Cpng In Biochemical Sensingmentioning

confidence: 99%

From Biochemical Sensor to Wearable Device: The Key Role of the Conductive Polymer in the Triboelectric Nanogenerator

Zhao

Yin

et al. 2023

Biosensors

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Triboelectric nanogenerators (TENGs) have revolutionized energy harvesting and active sensing, holding tremendous potential in personalized healthcare, sustainable diagnoses, and green energy applications. In these scenarios, conductive polymers play a vital role in enhancing the performance of both TENG and TENG-based biosensors, enabling the development of flexible, wearable, and highly sensitive diagnostic devices. This review summarizes the impact of conductive polymers on TENG-based sensors, focusing on their contributions to triboelectric properties, sensitivity, detection limits, and wearability. We discuss various strategies for incorporating conductive polymers into TENG-based biosensors, promoting the creation of innovative and customizable devices tailored for specific healthcare applications. Additionally, we consider the potential of integrating TENG-based sensors with energy storage devices, signal conditioning circuits, and wireless communication modules, ultimately leading to the development of advanced, self-powered diagnostic systems. Finally, we outline the challenges and future directions in developing TENGs that integrate conducting polymers for personalized healthcare, emphasizing the need to improve biocompatibility, stability, and device integration for practical applications.

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Optimization of conductive nanofillers in bio‐based polyurethane foams for ammonia‐sensing application

Selvaraj,

Subramanian,

Krishna Rajeev

et al. 2024

Polymer Engineering & Sci

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This study focuses on transforming inherently insulating bio‐based polyurethane foam into a susceptible gas sensor. The foam is chemically treated and reinforced with conductive fillers, including polyaniline, zinc oxide, and multi‐walled carbon nanotubes, synthesized through in situ polymerization. A statistical approach employing the design of experiments with response surface methodology was applied for optimization. Scanning electron microscopy imaging visually confirmed the size, shape, and uniformity of nanofillers in the polyurethane foam. The electrical conductivity of the composite material and its sensitivity to ammonia exposure were evaluated using a Rigol DM3068 digital multi‐meter. Our optimization identified the ideal composition to achieve the highest electrical conductivity, attained with 2.5 wt% polyaniline, 0.5 wt% zinc oxide, and 1 wt% multi‐walled carbon nanotubes, resulting in a value of 2544.30 S/m. The resistance measurements demonstrated the sample's suitability for ammonia sensing, ranging from 0.8 to 200 Ω with a response time of less than 20 s. In conclusion, our research underscores the versatility of this innovative material, providing a comprehensive solution for gas detection across various domains. By sensitively responding to ammonia, this composite material safeguards the industrial environment and finds applications in healthcare and agriculture, contributing to enhanced safety, and diagnostics.Highlights Fabricated bio‐based polyurethane foam into a conductive gas sensor Used polyaniline, zinc oxide, and multi‐walled carbon nanotube fillers synthesized via in situ polymerization Optimized using design of experiments with response surface methodology and analyzed with scanning electron microscopy Achieved excellent electrical conductivity Ammonia sensing with 0.8 to 200 Ω resistance for industrial, healthcare, and agricultural applications

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Room temperature operable ultra-sensitive ammonia sensor based on polyaniline-silver (PANI-Ag) nanocomposites synthesized by ultra-sonication

Cited by 15 publications

References 34 publications

Recent progress in polyaniline-based chemiresistive flexible gas sensors: design, nanostructures, and composite materials

Recent progress in polyaniline-based chemiresistive flexible gas sensors: design, nanostructures, and composite materials

From Biochemical Sensor to Wearable Device: The Key Role of the Conductive Polymer in the Triboelectric Nanogenerator

Optimization of conductive nanofillers in bio‐based polyurethane foams for ammonia‐sensing application

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