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.
Publisher Copyright:
© 2019 Elsevier B.V.
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Spectroscopy