Coloration and application of pH‐sensitive dyes on textile materials

Abstract

A large number of studies have been devoted to the development of chromic textile materials because of their wide applicability as sensor systems. More recently, pH‐sensitive chromic textiles have also been investigated to a considerable extent, as the pH value is an important parameter in various circumstances. This review therefore elaborates on pH‐sensitive textile materials. The outcome of this review process demonstrates that halochromic dyes can be successfully incorporated into textile materials, leading to flexible sensors. Various textile materials and different application methods have both been shown to be effective. Yet the textile material in which the pH‐sensitive agent is present affects its halochromic behaviour and this factor should thus always be considered. Finally, this review establishes the major potential of pH‐sensitive textile materials.

A near‐infrared fluorescent pH sensing film for wound milieu pH monitoring

“…[15] In order to study heterogeneous tissue structures such as chronic wounds, optical imaging of pH should be observed and quantified over the whole area rather than at a single point of measurement like a pH glass electrode did. [16,17] To eliminate errors induced by variations in concentration and distribution of fluorescent probes, a 2D ratiometric luminescence lifetime referencing pH sensor and an RGB ratiometric pH sensor film for in vivo imaging has been developed and used directly for human wound pH imaging. [16,17] To eliminate errors induced by variations in concentration and distribution of fluorescent probes, a 2D ratiometric luminescence lifetime referencing pH sensor and an RGB ratiometric pH sensor film for in vivo imaging has been developed and used directly for human wound pH imaging.…”

Substituent effects on absorption spectra of pH indicators: An experimental and computational study of sulfonphthaleine dyes

“…[17][18][19][20][21][22][23] One of the many applications of such textile sensors is in wound dressings. [11] These textile sensors maintain all advantages of textile materials, meaning they are flexible, applicable on large surfaces and can give a local signal, in particular local discolouration.…”

1H‐NMR, Photophysical, and pH Studies of 4‐(4,5‐Diphenyl‐1H‐imidazol‐2‐yl)benzaldehyde through Experimental and DFT Theoretical Analysis

“…Chemosensor techniques have been widely used to monitor environmental changes but also detect and prevent natural disasters. Some of the dyes showed chromic behavior by pH changes (ie) halochromism . Especially (de)protonation of the organic compounds showed halochromic behavior by pH changes.…”