Porphyrins and related macrocycles have been intensively exploited as sensing materials in
chemical sensors, since in these devices they mimic most of their biological functions, such …

Ammonia nitrogen (ammonia or ammonium) is widely present in natural waters and can
significantly affect aquatic flora and fauna. It plays an extremely important role in human …

In the present era of the Internet of Things, wearable sensors have been receiving
considerable attention owing to their great potential in a plethora of applications. Highly …

Epidermal pH is an indication of the skin's physiological condition. For example, pH of
wound can be correlated to angiogenesis, protease activity, bacterial infection, etc. Chronic …

In this work, a rapid and straightforward method was developed for colorimetric
determination of ammonia using smartphones. The mechanisms is based on the …

There is a need for an accurate end-of-life indicator for packaged food (meat, seafood, dairy
food etc.) beyond a simple “best use by” date on the food package. In this work, we propose …

The core N− H units of planar porphyrins are often inaccessible to forming hydrogen‐
bonding complexes with acceptor molecules. This is due to the fact that the amine moieties …

Salivary diagnostics has great potential to be used in the early detection and prevention of
many cancerous diseases. If implemented with rigour and efficiency, it can result in …

A novel approach to the preparation of a sensing coating on a quartz crystal microbalance
(QCM) to realize rapid and accurate ammonia detection is reported in this study. Positively …

We present a microfluidic optoelectronic sensor for saliva diagnostics with a potential
application for non-invasive early diagnosis of stomach cancer. Stomach cancer is the …