Rhodamine-based fluorescent probe for sequential detection of Al3+ ions and adenosine monophosphate in water

Rajinder Kaur, Sanjeev Saini, Navneet Kaur, Narinder Singh, Doo Ok Jang

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9 Citations (Scopus)

Abstract

Organic nanoparticles (N1) were prepared by dispersing thiophene-conjugated rhodamine derivative 1 in a buffer solution (10 mM TRIS, pH 7.4, containing 1% DMSO, v/v). N1 selectively recognized Al3+ ions through the “OFF-ON” switching mechanism of the spirolactam ring in rhodamine. The resulting N1·Al3+ complex recognized the biologically important molecule adenosine monophosphate (AMP) through a cation displacement process with a detection limit of 2 nM. N1 was capable of determining the concentration of Al3+ ions in environmental and biological samples. Portable test strips of N1 were prepared for the recognition of Al3+ ions and AMP for practical uses. Furthermore, it was demonstrated that the N1·Al3+ complex facilitated real-time monitoring of AMP concentration in the hydrolysis of ATP and ADP.

Original languageEnglish
Article number117523
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume225
DOIs
Publication statusPublished - 2020 Jan 15

Bibliographical note

Funding Information:
The authors are thankful to CSIR, New Delhi, for the research grant and research fellowship awarded to N.K. (02(0216)/14/EMR-II) and R.K. respectively. We are thankful to SAIF, Panjab University, Chandigarh, for access to their characterization facilities including NMR, mass spectrometry, IR spectroscopy, and TEM.

Funding Information:
The authors are thankful to CSIR , New Delhi, for the research grant and research fellowship awarded to N.K. ( 02(0216)/14/EMR-II ) and R.K., respectively. We are thankful to SAIF, Panjab University, Chandigarh, for access to their characterization facilities including NMR, mass spectrometry, IR spectroscopy, and TEM.

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

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