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<p>Detection of metal ions associated with environmental pollutants using simple and efficient techniques has gained significant attention due to their scientific applications. In the present study, a Tetraphenylethene (TPE) - Based aggregation-induced emission luminogen (AIEgen), designated as A-TPE (A- AIE), was designed and synthesised for selective sensing of hazardous metal ions. The synthesized TPE-Based probe prominently explores the AIEgen property and mechanochromic luminescence, with distinguishable colour changes upon mechanical stimulation. A-TPE shows maximum emission at 474&#xa0;nm upon excitation at 380&#xa0;nm. Further, the developed dihydropyrimidine (A-TPE) chemosensor employed for the selective, sensitive and naked eye detection of the chromium (Cr<sup>6+</sup> as CrO<sub>4</sub>²⁻) and Manganese (Mn<sup>7+</sup> as MnO₄⁻) metal ions. A-TPE showed good linear response in the range of 0 to 18&#xa0;µg/mL with a low limit of detection of 1.17 and 1.03&#xa0;µg/mL, respectively. In addition, the A-TPE probe displayed good results for different environmental samples. The present work demonstrates the potential of A-TPE based AIE-gen probe for analytical and environmental applications.</p> Graphical Abstract <p></p>

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Mechanochromic Phenomenon of Dihydropyrimidine and Chemosensing Detection of Cr6+ and Mn7+ in Aqueous Media

  • 期刊论文

  • 发表日期：

    2026年4月24日

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  • Trupti B. Yadav,
  • Omkar S. Nille,
  • Sneha R. Bhosale,
  • Alfredi A. Moyo,
  • Sneha V. Koparde,
  • Govind B. Kolekar,
  • Tanaji R. Bhosale,
  • Prashant V. Anbhule

摘要

Detection of metal ions associated with environmental pollutants using simple and efficient techniques has gained significant attention due to their scientific applications. In the present study, a Tetraphenylethene (TPE) - Based aggregation-induced emission luminogen (AIEgen), designated as A-TPE (A- AIE), was designed and synthesised for selective sensing of hazardous metal ions. The synthesized TPE-Based probe prominently explores the AIEgen property and mechanochromic luminescence, with distinguishable colour changes upon mechanical stimulation. A-TPE shows maximum emission at 474 nm upon excitation at 380 nm. Further, the developed dihydropyrimidine (A-TPE) chemosensor employed for the selective, sensitive and naked eye detection of the chromium (Cr6+ as CrO4²⁻) and Manganese (Mn7+ as MnO₄⁻) metal ions. A-TPE showed good linear response in the range of 0 to 18 µg/mL with a low limit of detection of 1.17 and 1.03 µg/mL, respectively. In addition, the A-TPE probe displayed good results for different environmental samples. The present work demonstrates the potential of A-TPE based AIE-gen probe for analytical and environmental applications.

Graphical Abstract