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 language | English |
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Article number | 117523 |
Journal | Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy |
Volume | 225 |
DOIs | |
Publication status | Published - 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