Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM
A reliable ammonia gas detection method is essential for various applications, so improving the sensitivity and selectivity of ammonia sensors is still challenging. In this study, we develop an ammonia sensor based on quartz crystal microbalance (QCM) using a simple preparation of molecularly imprin...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Biosensors and Bioelectronics: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590137023000171 |
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| author | Nur Aisyah Humairah Ihsan Nurijal Sintia Ainus Sofa Andi Chaerunnisa Roto Roto Ahmad Kusumaatmaja Eko Hadi Sujiono Kuwat Triyana |
| author_facet | Nur Aisyah Humairah Ihsan Nurijal Sintia Ainus Sofa Andi Chaerunnisa Roto Roto Ahmad Kusumaatmaja Eko Hadi Sujiono Kuwat Triyana |
| author_sort | Nur Aisyah Humairah |
| collection | DOAJ |
| description | A reliable ammonia gas detection method is essential for various applications, so improving the sensitivity and selectivity of ammonia sensors is still challenging. In this study, we develop an ammonia sensor based on quartz crystal microbalance (QCM) using a simple preparation of molecularly imprinting polymer (MIP) active layer of polyvinyl acetate (PVAc) and boric acid (BA) as additional doping. The active layer materials are then characterized by a scanning electron microscope (SEM) equipped with dispersive x-ray (EDX) and Fourier transform infrared spectroscopy (FTIR) to examine the morphology and the functional groups. The sensitivity of the ammonia sensor developed using the MIP-doped BA method resulted in 0.243 Hz/ppm, which is three times greater than the sensor developed without the MIP method. Apart from the significantly enhanced sensitivity, high selectivity to ammonia was also observed. The response increased significantly when the QCM-PVAc MIP 6BA sensor was exposed simultaneously to several analytes, such as ammonia, trimethylamine (TMA), and methylamine (MA). A decreased response was observed when the developed sensor was exposed simultaneously without ammonia. The sensor also showed good selectivity towards other analytes and was proven to have good long-term stability during a month of testing. This result suggests that the ammonia imprinting PVAc-doped BA is a promising new method for obtaining high sensitivity and selectivity sensors. |
| first_indexed | 2024-04-09T23:53:09Z |
| format | Article |
| id | doaj.art-09620c5d94984edd905e5f893f05565b |
| institution | Directory Open Access Journal |
| issn | 2590-1370 |
| language | English |
| last_indexed | 2024-04-09T23:53:09Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biosensors and Bioelectronics: X |
| spelling | doaj.art-09620c5d94984edd905e5f893f05565b2023-03-17T04:33:56ZengElsevierBiosensors and Bioelectronics: X2590-13702023-05-0113100320Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCMNur Aisyah Humairah0Ihsan Nurijal1Sintia Ainus Sofa2Andi Chaerunnisa3Roto Roto4Ahmad Kusumaatmaja5Eko Hadi Sujiono6Kuwat Triyana7Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, Indonesia; Department of Physics Education, Faculty of Teacher Training and Education, Universitas Sulawesi Barat, Majene, PO Box 91411, IndonesiaDepartment of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, IndonesiaDepartment of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, IndonesiaDepartment of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, Indonesia; Corresponding author.Laboratory of Material Physics, Department of Physics, Universitas Negeri Makassar, Makassar, 90224, IndonesiaDepartment of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, PO Box BLS 21, Yogyakarta, 55281, IndonesiaA reliable ammonia gas detection method is essential for various applications, so improving the sensitivity and selectivity of ammonia sensors is still challenging. In this study, we develop an ammonia sensor based on quartz crystal microbalance (QCM) using a simple preparation of molecularly imprinting polymer (MIP) active layer of polyvinyl acetate (PVAc) and boric acid (BA) as additional doping. The active layer materials are then characterized by a scanning electron microscope (SEM) equipped with dispersive x-ray (EDX) and Fourier transform infrared spectroscopy (FTIR) to examine the morphology and the functional groups. The sensitivity of the ammonia sensor developed using the MIP-doped BA method resulted in 0.243 Hz/ppm, which is three times greater than the sensor developed without the MIP method. Apart from the significantly enhanced sensitivity, high selectivity to ammonia was also observed. The response increased significantly when the QCM-PVAc MIP 6BA sensor was exposed simultaneously to several analytes, such as ammonia, trimethylamine (TMA), and methylamine (MA). A decreased response was observed when the developed sensor was exposed simultaneously without ammonia. The sensor also showed good selectivity towards other analytes and was proven to have good long-term stability during a month of testing. This result suggests that the ammonia imprinting PVAc-doped BA is a promising new method for obtaining high sensitivity and selectivity sensors.http://www.sciencedirect.com/science/article/pii/S2590137023000171Quartz crystal microbalanceImprinting polymerPolyvinyl acetateBoric acidAmmonia |
| spellingShingle | Nur Aisyah Humairah Ihsan Nurijal Sintia Ainus Sofa Andi Chaerunnisa Roto Roto Ahmad Kusumaatmaja Eko Hadi Sujiono Kuwat Triyana Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM Biosensors and Bioelectronics: X Quartz crystal microbalance Imprinting polymer Polyvinyl acetate Boric acid Ammonia |
| title | Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM |
| title_full | Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM |
| title_fullStr | Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM |
| title_full_unstemmed | Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM |
| title_short | Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM |
| title_sort | molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by qcm |
| topic | Quartz crystal microbalance Imprinting polymer Polyvinyl acetate Boric acid Ammonia |
| url | http://www.sciencedirect.com/science/article/pii/S2590137023000171 |
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