openQCM – Powered by Novaetech S.r.l
Publications citing the applications of openQCM (by Novaetech S.r.l.) instruments and accessories in scientific research.
The list of scientific papers published on the most important journals showing the usage of openQCM in several scientific fields, such as thin film deposition, chemical sensors, biological research and biosensors.
Because of the large number of publications, we are reorganizing everything by subject areas. This will take some time. Thank you for your patience
Aflaha, Rizky; Sari, Nur Laili Indah; Katriani, Laila; ari, Ahmad Hasan As'; Kusumaatmaja, Ahmad; Rianjanu, Aditya; Roto, Roto; Wasisto, Hutomo Suryo; Triyana, Kuwat
Maltodextrin-overlaid polyvinyl acetate nanofibers for highly sensitive and selective room-temperature ammonia sensors Journal Article
In: Microchemical Journal, pp. 109237, 2023.
Abstract | Links | BibTeX | Tags: 10 MHz, Ammonia, Nanofibers, openQCM sensors, Polyvinyl acetate, QCM, Quartz Crystal Microbalance
@article{aflaha2023maltodextrin,
title = {Maltodextrin-overlaid polyvinyl acetate nanofibers for highly sensitive and selective room-temperature ammonia sensors},
author = {Rizky Aflaha and Nur Laili Indah Sari and Laila Katriani and Ahmad Hasan As' ari and Ahmad Kusumaatmaja and Aditya Rianjanu and Roto Roto and Hutomo Suryo Wasisto and Kuwat Triyana},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0026265X23008561},
doi = {https://doi.org/10.1016/j.microc.2023.109237},
year = {2023},
date = {2023-10-01},
urldate = {2023-10-01},
journal = {Microchemical Journal},
pages = {109237},
publisher = {Elsevier},
abstract = {Various ammonia sensors based on different materials have continuously been developed and employed to enable real-time monitoring of ammonia gas in the environment. Efforts are put not only to improve their sensitivity and selectivity towards the target gas but also to operate them at room temperature. Here, we investigated the effect of overlaying maltodextrin with different concentrations on the surface of polyvinyl acetate (PVAc) nanofibers on ammonia sensing performances, in which quartz crystal microbalance (QCM) was utilized as a transducer to measure the resonance frequency shift affected by the adsorbed gas molecules. Higher concentrations of the overlaying maltodextrin led to larger nanofiber diameter and more functional active groups on the active nanofibrous layers. PVAc nanofibers with 0.05% maltodextrin overlay demonstrated the highest sensitivity of 0.525 Hz·ppm−1 at room temperature, which was 6.4 times higher than their bare counterpart (nanofiber without maltodextrin overlay). That sensor also possessed fast response and recovery times of 32 s and 17 s with a low detection limit (1.92 ppm). Besides its high reproducibility, reversibility, and repeatability, the sensor exhibited outstanding selectivity to other gas analytes and good long-term stability for 32 days of testing. This research shows that maltodextrin overlay can be used as a low-cost alternative route to increase the performance of organic material-based ammonia sensors, especially polymer nanofibers.},
key = {QCM, 10 MHz, QCM sensors, polyvinyl acetate, nanofibers, ammonia},
keywords = {10 MHz, Ammonia, Nanofibers, openQCM sensors, Polyvinyl acetate, QCM, Quartz Crystal Microbalance},
pubstate = {published},
tppubtype = {article}
}
Aflaha, Rizky; Afiyanti, Henny; Azizah, Zhafirah Nur; Khoirudin, Hanif; Rianjanu, Aditya; Kusumaatmaja, Ahmad; Roto, Roto; Triyana, Kuwat
Improving ammonia sensing performance of quartz crystal microbalance (QCM) coated with nanofibers and polyaniline (PANi) overlay Journal Article
In: Biosensors and Bioelectronics: X, pp. 100300, 2022.
Abstract | Links | BibTeX | Tags: Ammonia, Nanofiber, Polyaniline, Polyvinyl acetate, Quartz Crystal Microbalance
@article{aflaha2022improving,
title = {Improving ammonia sensing performance of quartz crystal microbalance (QCM) coated with nanofibers and polyaniline (PANi) overlay},
author = {Rizky Aflaha and Henny Afiyanti and Zhafirah Nur Azizah and Hanif Khoirudin and Aditya Rianjanu and Ahmad Kusumaatmaja and Roto Roto and Kuwat Triyana},
url = {https://www.sciencedirect.com/science/article/pii/S2590137022001935},
doi = {https://doi.org/10.1016/j.biosx.2022.100300},
year = {2022},
date = {2022-12-23},
urldate = {2022-01-01},
journal = {Biosensors and Bioelectronics: X},
pages = {100300},
publisher = {Elsevier},
abstract = {Ammonia gas sensors with high sensitivity, good selectivity, and superior stability continue to be developed to monitor ammonia levels in the air. In this study, we developed a sensor based on a quartz crystal microbalance coated with polyvinyl acetate (PVAc) nanofiber overlaid with a polyaniline (PANi) nanocomposite to increase the sensitivity and selectivity of the sensor. The morphology and chemical composition of the fabricated nanofibers were examined by scanning electron microscopy and Fourier transform infrared spectroscopy. PANi nanocomposites were shown to stick to nanofiber, and nanofiber became many active groups after PANi overlay. The QCM sensor coated with the PVAc nanofiber overlaid with 0.05% PANi (PVAc/PANi5) exhibited the highest sensitivity of 0.297 Hz/ppm. This value was increased 5.2 times compared to the sensor without the PANi overlay (0.055 Hz/ppm). The PVAc/PANi5 sensor exhibited good reproducibility, repeatability, and reversibility. Moreover, a rapid response (36 s) and recovery (26 s) time were observed. The sensor also showed good selectivity towards other analytes and was proven to have good long-term stability during two months of testing. This finding may potentially be an alternative method for increasing the ammonia-sensing performance of a sensor through overlaying.},
key = {Polyvinyl acetate, Polyaniline, Ammonia, Quartz crystal microbalance, Nanofiber},
keywords = {Ammonia, Nanofiber, Polyaniline, Polyvinyl acetate, Quartz Crystal Microbalance},
pubstate = {published},
tppubtype = {article}
}
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