Colorimetric sensing offers instant reporting via visible signals. Versus labor-intensive and
instrument-dependent detection methods, colorimetric sensors present advantages …

Paper-based microfluidic devices have emerged as powerful platforms for bioanalysis
offering advantages over other substrate materials including simpler fabrication protocols …

Smartphone-based digital image photometry (SDI) has been widely exploited for a variety of
analytical applications owing to its advantages, such as portability, low energy demand, cost …

Organophosphorus pesticides (OPs) play an important role in agricultural production and
the accurate detection of OP residues is essential to ensure food safety. Portable sensors …

Here, a microfluidic paper-based analytical device (μPAD) was first combined with a deep
learning-based smartphone app called “DeepLactate” and then applied for quantitative and …

Background Pesticides are recognized as effective tools for crop protection, but pesticide
residues pose a potential threat to human health and ecosystems. When pesticides are …

The objective of this study was to develop novel colorimetric films for food freshness
monitoring. UV light irradiation (365 nm) and carbon dots (CDs) were tested as the potential …

Real-time and on-site food spoilage monitoring is still a challenging issue to prevent food
poisoning. At the onset of food spoilage, microbial and enzymatic activities lead to the …

The escalating risk of diabetes and its consequential impact on cardiac, vascular, ocular,
renal, and neural systems globally have compelled researchers to devise cost-effective …

By eliminating the need for sample transportation and centralized laboratory analysis, point-
of-care testing (POCT) enables on-the-spot testing, with results available within minutes …