Encapsulation of Bromocresol Green pH Indicator into a Sol‐Gel Matrix

@article{Zaggout2005EncapsulationOB,
  title={Encapsulation of Bromocresol Green pH Indicator into a Sol‐Gel Matrix},
  author={Farid R. Zaggout},
  journal={Journal of Dispersion Science and Technology},
  year={2005},
  volume={26},
  pages={757 - 761}
}
  • F. R. Zaggout
  • Published 1 November 2005
  • Chemistry
  • Journal of Dispersion Science and Technology
The bromocresol green pH indicator was encapsulated into transparent monolithic silica matrices using acid catalyzed sol‐gel reaction. Tetraethylorthosilicate was used for the entrapment of the bromocresol green indicator. The immobilized bromocresol green shows behavior similar to its solution counterpart. It retains its structure during the sol‐gel reactions in terms of response to pH and albumine. The polarized light microscopy has indicated that the bromocresol green molecules are strongly… 
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16 Citations
Background Citations
4
Results Citations
1

16 Citations

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Spectrophotometric Studies of Entrapped Thymol Phtalein pH Indicator into Sol‐Gel Matrix
TLDR
Thymol phtalein can be immobilized in sol‐gel glasses and used as a solid pH sensor and the UV/vis spectra indicate that the thymolphthalein retains its structure during thesol‐gel reactions in terms of response to pH.
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In this contribution we present a miniaturized optical reflectance pH sensor based on organically modified silicate for continuous measurements of wound pH. Colorimetric indicators (bromocresol green…
Hybrid sol–gel thin films doped with a pH indicator: effect of organic modification on optical pH response and film surface hydrophilicity
Optical sensors for application in innovative wearable sensing systems such as textile-integrated systems and wireless sensor platforms rely on the development of low-cost multifunctional materials…
Determination of the acidity constants of neutral red and bromocresol green by solution scanometric method and comparison with spectrophotometric results
Highly pH-responsive sensor based on amplified spontaneous emission coupled to colorimetry
TLDR
A simple, directly-readable approach for high resolution pH sensing based on sharp changes in Amplified Spontaneous Emission of a Stilbene 420 (ST) laser dye triggered by the pH-dependent absorption of Bromocresol Green (BG).
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