Smartphone-integrated colorimetric and microfluidic paper-based analytical devices for the trace-level detection of permethrin

Smartphone-Assisted EY@MOF-5-Based Dual-Emission Fluorescent Sensor for Rapid On-Site Detection of Daclatasvir and Nitenpyram

“…Subsequently, various concentrations of DCT (50, 100, and 150 nM) and NTP (50, 150, and 250 μM) were introduced to real samples, representing low, medium, and high levels, respectively. The linear regression equation was used to determine the DCT and NTP content in the samples, and percentage recoveries were calculated using the following equation recovery false( % false) = false( calculated 0.25em concentration / added 0.25em concentration false) × 100 …”

“…10 Similarly, extensive pesticide applications in agriculture have created severe environmental concerns since they easily diffuse into water, air, food, and soil, causing threats to fauna and flora. 11 Pesticides are not degraded easily and have approximately 10−30 years of half-life. These pesticide residues are transferred biologically through the food chain, causing acute toxicity.…”

Progress in the design of portable colorimetric chemical sensing devices

“…The system is very selective with a linear range of 2.0–5.0 mg L −1 , and 1.52 mg L −1 of LOD; it has been successfully employed for dietary supplement quantification, demonstrating practicality and reproducibility for on-site Cr 3+ detection in real samples. A paper-based food safety process using different sensing probes such as NMs and dyes 134–137 ensures quality checks, tracks contamination, and educates users, enhancing the overall food safety through accessible, cost-effective, and efficient methods. Table 3 summarizes the applications of portable colorimetric sensing devices for the measurement of a variety of several chemical substances from food samples.…”