Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 283, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2022.121729
Keywords
Formaldehyde; Quantum dots; Schiff base reaction; Fluorescence quenching; Human; Health
Categories
Funding
- Ministry of Science and Technology [MOST 110-2113-M-110-018, 111-2113-M-110-004]
- National Sun Yat-sen University, Kaohsiung, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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This article describes an efficient and rapid detection method of formaldehyde by synthesizing APTES quantum dots, which react with formaldehyde to generate fluorescence quenching for detection.
Formaldehyde has an extremely reactive carbonyl group, commonly used as an antibacterial agent to sterilize and prevent food to spoil. This article describes an efficient and rapid detection method of formaldehyde from an aqueous solution by synthesizing 3-Aminopropyltriethoxysilane (APTES) quantum dots (Nano A) which react with formaldehyde to generate a Schiff base reaction. The photoinduced electron transfer produced by the quantum dots themselves results in fluorescence quenching to detect formaldehyde. The detection limit can reach 10(-9) M, and it can further be used to detect formaldehyde content in foods, such as baby vegetables, mushrooms, and vermicelli among other daily foods.
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