Hypersensitive and Selective Interferometric Nose for Ultratrace Ammonia Detection with Fast Response Utilizing PANI@SnO2 Nanocomposite

Anand M. Shrivastav; Gaurav Sharma; Abhishek S. Rathore; Rajan Jha

doi:10.1021/acsphotonics.8b00828

Hypersensitive and Selective Interferometric Nose for Ultratrace Ammonia Detection with Fast Response Utilizing PANI@SnO₂ Nanocomposite

Anand M. Shrivastav, Gaurav Sharma, Abhishek S. Rathore, Rajan Jha

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Ammonia is one of the most toxic gases present in our environment, and its presence in the atmosphere is very unpleasant since its higher concentration in blood causes the coma and convulsion. Hence, in light of advance photonics technology, we report a contemporary approach to design and develop hypersensitive ammonia gas sensor realizing Mach-Zehnder interferometer (MZI) by a single mode fiber (SMF)-photonic crystal fiber (PCF)-SMF fiber optic substrate for realizing the interference by immobilizing PANI@SnO₂ nanocomposite to achieve sensing. In this case, excitation of core and cladding modes of PCF is achieved using collapse region that is formed at the junction of SMF and PCF specialty fiber. The method claimed to have very fast response and recovery times of 7 and 2 s, respectively, which can detect as low as 8.09 ppt (47.59 fM). The reusable probe shows the potential for rapid detection of ultratrace ammonia with high selectivity and reproducible features, thereby opening a new window for environmental monitoring and online measurements.

Original language	English
Pages (from-to)	4402-4412
Number of pages	11
Journal	ACS Photonics
Volume	5
Issue number	11
DOIs	https://doi.org/10.1021/acsphotonics.8b00828
State	Published - 21 Nov 2018
Externally published	Yes

Keywords

ammonia
interferometer
nanocomposite
optical sensor
photonic crystal fiber

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biotechnology
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1021/acsphotonics.8b00828

Cite this

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title = "Hypersensitive and Selective Interferometric Nose for Ultratrace Ammonia Detection with Fast Response Utilizing PANI@SnO2 Nanocomposite",

abstract = "Ammonia is one of the most toxic gases present in our environment, and its presence in the atmosphere is very unpleasant since its higher concentration in blood causes the coma and convulsion. Hence, in light of advance photonics technology, we report a contemporary approach to design and develop hypersensitive ammonia gas sensor realizing Mach-Zehnder interferometer (MZI) by a single mode fiber (SMF)-photonic crystal fiber (PCF)-SMF fiber optic substrate for realizing the interference by immobilizing PANI@SnO2 nanocomposite to achieve sensing. In this case, excitation of core and cladding modes of PCF is achieved using collapse region that is formed at the junction of SMF and PCF specialty fiber. The method claimed to have very fast response and recovery times of 7 and 2 s, respectively, which can detect as low as 8.09 ppt (47.59 fM). The reusable probe shows the potential for rapid detection of ultratrace ammonia with high selectivity and reproducible features, thereby opening a new window for environmental monitoring and online measurements.",

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author = "Shrivastav, {Anand M.} and Gaurav Sharma and Rathore, {Abhishek S.} and Rajan Jha",

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AU - Shrivastav, Anand M.

AU - Sharma, Gaurav

AU - Rathore, Abhishek S.

AU - Jha, Rajan

PY - 2018/11/21

Y1 - 2018/11/21

N2 - Ammonia is one of the most toxic gases present in our environment, and its presence in the atmosphere is very unpleasant since its higher concentration in blood causes the coma and convulsion. Hence, in light of advance photonics technology, we report a contemporary approach to design and develop hypersensitive ammonia gas sensor realizing Mach-Zehnder interferometer (MZI) by a single mode fiber (SMF)-photonic crystal fiber (PCF)-SMF fiber optic substrate for realizing the interference by immobilizing PANI@SnO2 nanocomposite to achieve sensing. In this case, excitation of core and cladding modes of PCF is achieved using collapse region that is formed at the junction of SMF and PCF specialty fiber. The method claimed to have very fast response and recovery times of 7 and 2 s, respectively, which can detect as low as 8.09 ppt (47.59 fM). The reusable probe shows the potential for rapid detection of ultratrace ammonia with high selectivity and reproducible features, thereby opening a new window for environmental monitoring and online measurements.

AB - Ammonia is one of the most toxic gases present in our environment, and its presence in the atmosphere is very unpleasant since its higher concentration in blood causes the coma and convulsion. Hence, in light of advance photonics technology, we report a contemporary approach to design and develop hypersensitive ammonia gas sensor realizing Mach-Zehnder interferometer (MZI) by a single mode fiber (SMF)-photonic crystal fiber (PCF)-SMF fiber optic substrate for realizing the interference by immobilizing PANI@SnO2 nanocomposite to achieve sensing. In this case, excitation of core and cladding modes of PCF is achieved using collapse region that is formed at the junction of SMF and PCF specialty fiber. The method claimed to have very fast response and recovery times of 7 and 2 s, respectively, which can detect as low as 8.09 ppt (47.59 fM). The reusable probe shows the potential for rapid detection of ultratrace ammonia with high selectivity and reproducible features, thereby opening a new window for environmental monitoring and online measurements.

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