OPTICAL PROPERTIES MODULATION OF CYANINE DYES IN ORGANIC SOLVENTS AND IN THE CRITICAL INTRACELLULAR pH WINDOW

Richard SISA; Balázs BRÉM; Emese  GÁL; Luiza GĂINĂ; Dan Ioan  PORUMB; Castelia  CRISTEA; Luminita  SILAGHI-DUMITRESCU

doi:10.24193/subbchem.2019.2.47

Authors

Richard SISA Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania.
Balázs BRÉM Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. *Corresponding author: bbrem@chem.ubbcluj.ro. https://orcid.org/0000-0001-6091-5817 (unauthenticated)
Emese GÁL Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: emese.gal@ubbcluj.ro. https://orcid.org/0000-0003-4324-0787 (unauthenticated)
Luiza GĂINĂ Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: gluiza@chem.ubbcluj.ro. https://orcid.org/0000-0002-1328-0107 (unauthenticated)
Dan Ioan PORUMB Faculty of Chemistry and Chemical Engineering, “Babeș-Bolyai” University, Cluj-Napoca, Romania. Email: ioan.porumb@ubbcluj.ro. https://orcid.org/0000-0001-6388-2686 (unauthenticated)
Castelia CRISTEA Faculty of Chemistry and Chemical Engineering, “Babeș-Bolyai” University, Cluj-Napoca, Romania. Email: castelia.cristea@ubbcluj.ro. https://orcid.org/0000-0003-1138-2596 (unauthenticated)
Luminita SILAGHI-DUMITRESCU Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: lusi@chem.ubbcluj.ro. https://orcid.org/0000-0001-8800-4839 (unauthenticated)

DOI:

https://doi.org/10.24193/subbchem.2019.2.47

Keywords:

cyanine dyes, phenothiazine, indolium iodide, solvatochromism, pH sensitivity

Abstract

The synthesis of new 2-(2-(3-formyl-10H-phenothiazin-7yl)vinyl)-3H-indolium iodide and comparison of the UV–visible absorption/emission spectral changes for several indolium cyanine dyes upon variation of organic solvents and aqueous solutions with pH in the range between 5–8 pH units were described.

References

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OPTICAL PROPERTIES MODULATION OF CYANINE DYES IN ORGANIC SOLVENTS AND IN THE CRITICAL INTRACELLULAR pH WINDOW

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