A monoclonal antibody for identifying capsaicin congeners in illegal cooking oil and its applications

Highly stable lanthanide(iii) metal–organic frameworks as ratiometric fluorescence sensors for vitamin B6

“…The K SV value was calculated to be about 0.87 × 10 4 M −1 , and the limit of detection (LOD) for VB 6 was calculated to be 1.03 μM (3 δ / K ). 8 With an increase in the concentration of VB 6 , the color of the suspension of 1 changed from bright orange, pink, and light purple to blue under a 254 nm UV-vis lamp (Fig. 5d).…”

“…1–6 Among them, lanthanide-based metal–organic frameworks (Ln-MOFs) as ideal fluorescent probes have attracted significant attention due to their excellent fluorescence properties, including large Stokes shift, long fluorescence lifetime, high quantum yield, and narrow characteristic emission spectral lines. 7 Therefore, many fluorescent sensors based on Ln-MOFs have been reported in recent years, which are widely used for detecting pollutants in aqueous solution, such as heavy metal ions, 8 small molecules, 9–11 and biomarkers. 12,13 However, the weak coordination capability and poor water stability of MOFs limit their application as fluorescent probes.…”

Study on detection of soybean components in edible oil with ladder-shape melting temperature isothermal amplification (LMTIA) assay

“…Soybeans are cheap and often added as an additive to other edible oils. Capsaicin and animal fats are essential indicators for detecting waste oil, 20 therefore, the two components can be detected to judge the quality of the edible oil. Specificity was determined with this target gene, with H 2 O as the negative control and 1 ng soybean gDNA as the positive control.…”

Electronic Tongue Based on ZnO/ITO@glass for Electrochemical Monitoring of Spiciness Levels

“…Various methodologies have been suggested for qualitative and quantitative assessment of capsaicinoids. These methodologies include approaches that rely on the physical characteristics of molecules, such as visible optical absorption, electrical conductivity, high-performance liquid chromatography (HPLC), surface-enhanced Raman spectroscopy (SERS), near-infrared (IR), time-resolved fluorescence, terahertz, fluorescence immunochromatographic, enzyme-linked immunosorbent assay (ELISA), visible, luminescence, gas chromatography (GC), and the combination of above techniques. , In recent years, there has been significant progress in the development of various device designs aimed at medical diagnostic applications. The task of establishing a direct connection between an electronic device and a biological environment is a major obstacle due to the inherent difficulties in converting biological information into an electrical signal.…”