Recent developments in portable and handheld opto-chemical analytical instrumentation
over the last decade (2000–2010) are reviewed. First, the characteristics of typical …

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 …

The development of a new methodology for visualizing and detecting gases is imperative for
various applications. Here, we report a novel strategy in which gas molecules are detected …

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 …

In this work, a radiofrequency identification (RFID) tag with an optical indicator for the
measurement of gaseous oxygen is described. It consists of an O2 sensing membrane of …

An optochemical CO2 sensor is described which uses a phosphorescent reporter dye
PtTFPP and a colourimetric pH indicator α-naphtholphthalein incorporated in plastic matrix …

Polydimethylsiloxane (PDMS) composites containing variable weight amounts of carbon
black (CB) have been synthesized as membranes to evaluate the effect of CB concentration …

A new class of pH-sensitive indicator dyes for optical carbon dioxide sensors based on di-
OH-aza-BODIPYs is presented. These colorimetric indicators show absorption maxima in …

A new water-based sensor for carbon dioxide containing an ionic liquid is presented. The
sensor is based on the acidity of the CO 2 molecule. The sensor incorporates an ionic liquid …

We report a phosphorescent chemosensor based on a trinuclear Au (I) pyrazolate complex
or [Au (3-CH3, 5-COOH) Pz] 3 (aka Au3Pz3) stabilized in aqueous chitosan (CS) polymer …