Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide
This work is aimed at the development of new heterostructures based on cobalt phthalocyanines (CoPc) and gold nanoparticles (AuNPs), and the evaluation of the prospects of their use to determine low concentrations of ammonia and nitric oxide. For this purpose, CoPc films were decorated with AuNPs by...
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MDPI AG
2022-06-01
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| Series: | Biosensors |
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| Online Access: | https://www.mdpi.com/2079-6374/12/7/476 |
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| author | Svetlana I. Dorovskikh Darya D. Klyamer Evgeny A. Maksimovskiy Victoria V. Volchek Sergey M. Zharkov Natalia B. Morozova Tamara V. Basova |
| author_facet | Svetlana I. Dorovskikh Darya D. Klyamer Evgeny A. Maksimovskiy Victoria V. Volchek Sergey M. Zharkov Natalia B. Morozova Tamara V. Basova |
| author_sort | Svetlana I. Dorovskikh |
| collection | DOAJ |
| description | This work is aimed at the development of new heterostructures based on cobalt phthalocyanines (CoPc) and gold nanoparticles (AuNPs), and the evaluation of the prospects of their use to determine low concentrations of ammonia and nitric oxide. For this purpose, CoPc films were decorated with AuNPs by gas-phase methods (MOCVD and PVD) and drop-casting (DC), and their chemiresistive sensor response to low concentrations of NO (10–50 ppb) and NH<sub>3</sub> (1–10 ppm) was investigated. A comparative analysis of the characteristics of heterostructures depending on the preparation methods was carried out. The composition, structure, and morphology of the resulting hybrid films were studied by X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma atomic emission (ICP-AES) spectroscopy, as well as electron microscopy methods to discuss the effect of these parameters on the sensor response of hybrid films to ammonia and nitric oxide. It was shown that regardless of the fabrication method, the response of Au/CoPc heterostructures to NH<sub>3</sub> and NO gases increased with an increase in the concentration of gold. The sensor response of Au/CoPc heterostructures to NH<sub>3</sub> increased 2–3.3 times compared to CoPc film, whereas in the case of NO it increased up to 16 times. The detection limits of the Au/CoPc heterostructure with a gold content of ca. 2.1 µg/cm<sup>2</sup> for NH<sub>3</sub> and NO were 0.1 ppm and 4 ppb, respectively. It was shown that Au/CoPc heterostructures can be used for the detection of NH<sub>3</sub> in a gas mixture simulating exhaled air (N<sub>2</sub>—74%, O<sub>2</sub>—16%, H<sub>2</sub>O—6%, CO<sub>2</sub>—4%). |
| first_indexed | 2024-03-09T12:11:00Z |
| format | Article |
| id | doaj.art-b402676f6cf74abb82c7d2e35e0c8a73 |
| institution | Directory Open Access Journal |
| issn | 2079-6374 |
| language | English |
| last_indexed | 2024-03-09T12:11:00Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
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| series | Biosensors |
| spelling | doaj.art-b402676f6cf74abb82c7d2e35e0c8a732023-11-30T22:53:06ZengMDPI AGBiosensors2079-63742022-06-0112747610.3390/bios12070476Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric OxideSvetlana I. Dorovskikh0Darya D. Klyamer1Evgeny A. Maksimovskiy2Victoria V. Volchek3Sergey M. Zharkov4Natalia B. Morozova5Tamara V. Basova6Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaKirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Pr., 630090 Novosibirsk, RussiaThis work is aimed at the development of new heterostructures based on cobalt phthalocyanines (CoPc) and gold nanoparticles (AuNPs), and the evaluation of the prospects of their use to determine low concentrations of ammonia and nitric oxide. For this purpose, CoPc films were decorated with AuNPs by gas-phase methods (MOCVD and PVD) and drop-casting (DC), and their chemiresistive sensor response to low concentrations of NO (10–50 ppb) and NH<sub>3</sub> (1–10 ppm) was investigated. A comparative analysis of the characteristics of heterostructures depending on the preparation methods was carried out. The composition, structure, and morphology of the resulting hybrid films were studied by X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma atomic emission (ICP-AES) spectroscopy, as well as electron microscopy methods to discuss the effect of these parameters on the sensor response of hybrid films to ammonia and nitric oxide. It was shown that regardless of the fabrication method, the response of Au/CoPc heterostructures to NH<sub>3</sub> and NO gases increased with an increase in the concentration of gold. The sensor response of Au/CoPc heterostructures to NH<sub>3</sub> increased 2–3.3 times compared to CoPc film, whereas in the case of NO it increased up to 16 times. The detection limits of the Au/CoPc heterostructure with a gold content of ca. 2.1 µg/cm<sup>2</sup> for NH<sub>3</sub> and NO were 0.1 ppm and 4 ppb, respectively. It was shown that Au/CoPc heterostructures can be used for the detection of NH<sub>3</sub> in a gas mixture simulating exhaled air (N<sub>2</sub>—74%, O<sub>2</sub>—16%, H<sub>2</sub>O—6%, CO<sub>2</sub>—4%).https://www.mdpi.com/2079-6374/12/7/476gold nanoparticlescobalt phthalocyaninegas-phase depositionchemiresistive sensorsnitric oxideammonia |
| spellingShingle | Svetlana I. Dorovskikh Darya D. Klyamer Evgeny A. Maksimovskiy Victoria V. Volchek Sergey M. Zharkov Natalia B. Morozova Tamara V. Basova Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide Biosensors gold nanoparticles cobalt phthalocyanine gas-phase deposition chemiresistive sensors nitric oxide ammonia |
| title | Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide |
| title_full | Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide |
| title_fullStr | Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide |
| title_full_unstemmed | Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide |
| title_short | Heterostructures Based on Cobalt Phthalocyanine Films Decorated with Gold Nanoparticles for the Detection of Low Concentrations of Ammonia and Nitric Oxide |
| title_sort | heterostructures based on cobalt phthalocyanine films decorated with gold nanoparticles for the detection of low concentrations of ammonia and nitric oxide |
| topic | gold nanoparticles cobalt phthalocyanine gas-phase deposition chemiresistive sensors nitric oxide ammonia |
| url | https://www.mdpi.com/2079-6374/12/7/476 |
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