Recent advances in fluorescent and colorimetric sensing for volatile organic amines and biogenic amines in food

Synthesis of Lewis adduct-based indenophenanthridine and study of its tunable optoelectronic properties toward an amine sensor

“…[31][32][33][34][35] During the process of food deterioration, microorganisms break down organic matter, thereby generating biogenic amines, including histidine, trimethylamine, dimethylamine, and cadaverine, all of which have adverse effects on human health. [36][37][38][39][40][41] For real-time applications, the innovation of amine monitoring techniques with a superlative degree of sensitivity is desirable.…”

In Situ Optical Detection of Amines at a Parts-per-Quadrillion Level by Severing the Through-Space Conjugated Supramolecular Domino

“…The misuse and abuse of amine-containing drugs can lead to serious social consequences, such as addiction, crime, and impaired personal and professional relationships. − Consequently, accurate and sensitive detection of amines is crucial in fields, including industrial safety, environmental monitoring, and clinical diagnoses. − Ongoing research and development of sensing materials offer promise for enhancing the sensitivity and selectivity of amine detection. Optical/fluorescent amine-detecting materials are particularly promising due to their easy manipulation, naked-eye readout, and portability. − Several examples of these materials include cellulose-based ratiometric fluorescent materials developed by Zhang et al, which involve the liberation of a proton from fluorescein isothiocyanate (FITC) by ammonia leading to a color response within the concentration range of 5.0–2.5 × 10 4 ppm, and a dinuclear Zn­(II) Schiff-base complex developed by Santo di Bella et al that selectively detects biological diamines or polyamines with detection limits of 1 and 0.18 μM for histamine using spectrophotometry and fluorescence spectrophotometry, respectively. Hu et al developed a coumarin-based fluorescence probe with a low detection limit of 3.82 ppm through an ammonolysis reaction in the presence of an amine vapor .…”

Early Spoilage Detection of Cultured Pacific White Shrimp Using Quartz Crystal Microbalance Gas Sensors

“…Rapid and sensitive detection of amine molecules has been done extensively in the previous decades. [9,10] They used various types of materials (i. e., polyaniline, [11,12] polyacrylic acid, [13] nano-LaFeO 3 [14] ) and transducers (i. e., electric, fluorescent, colorimetric, and microgravimetric). [10,15,16] Quartz crystal microbalance (QCM) transducer is one kind of gravimetric sensors offering sensitive and real-time detection based on mass changes.…”