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Integrated molybdenum single atom array sensors with multichannels for nitrite detection in foods
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DOI：10.1016/j.bios.2024.116345.png)
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Abstract
En 中文
Nitrite (NO2- ) is present in a variety of foods, but the excessive intake of NO2- can indirectly lead to carcinogenic, teratogenic, mutagenicity and other risks to the human body. Therefore, the detection of NO(2)(-)is crucial for maintaining human health. In this study, an integrated array sensor for NO2- detection is developed based on molybdenum single atom material (IMSMo-SAC) using high-resolution electrohydrodynamic (EHD) printing technology. The sensor comprises three components: a printed electrode array, multichannels designed on polydimethylsiloxane (PDMS) and an electronic signal process device with bluetooth. By utilizing Mo-SAC to facilitate electron transfer during the redox reaction, rapid and efficient detection of NO2- can be achieved. The sensor has a wide linear range of 0.1 mu M-107.8 mM, a low detection limit of 33 nM and a high sensitivity of 0.637 mA(- 1)mM(- 1) cm(- 2). Furthermore, employing this portable array sensor allows simultaneously measurements of NO(2)( - )concentrations in six different foods samples with acceptable recovery rates. This array sensor holds great potential for detecting of small molecules in various fields.
Keywords:
Nitrite
Array sensor
Molybdenum single atom material
Multiple channels detection
Food detection
Journal
IF:
10.5
Papers:
1.8W
Citations:
7.7W