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- Title
Self-assembled sugar-based copper nanoparticles as trimethylamine sensor.
- Authors
Sarvepalli, Guru Prasanth; Subbiah, Dinesh Kumar; Lalitha, Krishnamoorthy; Nagarajan, Subbiah; Rayappan, John Bosco Balaguru
- Abstract
Rapid detection and monitoring of trimethylamine (TMA) in a real-time environment is of great significance in the context of pollution monitoring, food quality assessment, and safety. In this work, self-assembled sugar-based copper nanoparticles (Glu-CuNPs) were synthesized by treating copper acetate with organogel, which was obtained by the self-assembly of sugar-based amphiphile in dichlorobenzene. Structural, morphological, electrical, and sensing properties of Glu-CuNPs were analyzed using 1H- and 13C-nuclear magnetic resonance (NMR), field-emission scanning electron microscope (FE-SEM), electrospray ionization mass spectroscopy (ESI-MS), X-ray diffraction (XRD), field-emission tunneling electron microscope (FE-TEM), Fourier transform infrared (FTIR), and Home-made sensing chamber integrated with Keithley electrometer. At room temperature, Glu-CuNPs compound displayed better selectivity towards 100 ppm of TMA with a fast response of 28 and recovery time of 317 and 254 s, respectively. The developed sensor showed a detection range of 1–500 ppm at room temperature.
- Subjects
SCANNING electron microscopes; ELECTRON microscopes; POLLUTION monitoring; MASS spectrometry; ELECTRON tunneling
- Publication
Journal of Materials Science: Materials in Electronics, 2020, Vol 31, Issue 2, p1594
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-019-02676-0