Background In recent years, research on food packaging is gaining momentum, primarily
being driven by consumer preferences to food quality and food safety. Also, as food …

Intelligent packaging in foodstuffs refers to a type of packaging that contains intelligent
agents such as detectors and sensors. This type of packaging is used to convey information …

Fluorescence resonance energy transfer (FRET) is a nonradiative process whereby an
excited state donor D (usually a fluorophore) transfers energy to a proximal ground state …

The field of optical chemical sensors has been a growing research area over the last three
decades. A wide range of books and review articles has been published by experts in the …

We demonstrate a novel optical sensor for carbon dioxide in concentrations between 0 and
3%. The sensing scheme is based on the optical interrogation of a 12-μm polystyrene (PS) …

Recent advances in food packaging materials largely rely on nanotechnology structuring.
Owing to several unique properties of nanostructures that are lacking in their bulk forms, the …

Carbon dioxide (CO 2) monitoring in human subjects is of crucial importance in medical
practice. Transcutaneous monitors based on the Stow-Severinghaus electrode make a good …

Carbon dioxide (CO 2) sensors play important roles in our daily life and production activities.
However, it remains a challenge to develop a tiny device with remote sensing capability for …

Oxygen and carbon dioxide sensors are involved in many chemical and biochemical
reactions. Consequently, considerable efforts over years have been devoted to discover and …

New indicators for optical CO2 sensors are synthesized in two steps from the commercially
available diketo-pyrrolo-pyrrole (DPP) pigments Irgazin Ruby and Irgazin Scarlet. After …