This is the first comprehensive review on methods and materials for use in optical sensing of
pH values and on applications of such sensors. The Review starts with an introduction that …

Digital image colorimetry (DIC) on smartphone is regarded as a powerful, fast and low-cost
analysis method to measure target analyte with color changes of digital image obtained by …

Corrole chemistry has witnessed an impressive boost in studies in the last 20 years, thanks
to the possibility of preparing corrole derivatives by simple synthetic procedures. The …

We report the development of a highly sensitive ratiometric fluorescent lateral flow
immunoassay (RFLFIA) strip for rapid and accurate detection of acute myocardial infarction …

In this work, an Android application for measurement of nitrite concentration and pH
determination in combination with a low-cost paper-based microfluidic device is presented …

Water pollution is a serious environmental problem affecting millions of people, and the
demand for frequent water quality monitoring is increasing. The need for analytical platforms …

Chemical analysis based on colour changes recorded with imaging devices is gaining
increasing interest. This is due to its several significant advantages, such as simplicity of …

Paper-based immunoassays are becoming powerful and low-cost diagnostic tools,
especially in resource-limited settings. Inexpensive methods for quantifying these assays …

Highlights•The new N-riched triazine based covalent organic framework was synthesized
and characterization.•The ability of synthesized N-riched TCOF to remove Direct Fast Scarlet …

The mobile health market is rapidly expanding and portable diagnostics tools offer an
opportunity to decrease costs and increase the availability of healthcare. Here we present a …