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Related Experiment Video

Updated: May 13, 2026

Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay
07:55

Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay

Published on: June 2, 2023

A sensitive ratiometric fluorescent sensor for zinc(II) with high selectivity.

Yuanyuan Lv1, Mingda Cao, Jiakai Li

  • 1School of Medicine, Zhejiang University City College, Hangzhou 310015, Zhejiang, China. lvyy@zucc.edu.cn

Sensors (Basel, Switzerland)
|March 8, 2013
PubMed
Summary

A novel fluorescent sensor, P1, effectively detects zinc ions (Zn²⁺) with high selectivity and sensitivity. This functionalized porphyrin-based sensor shows rapid response and reproducibility, indicating its potential for Zn²⁺ sensing applications.

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Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Biochemistry

Background:

  • Zinc ions (Zn²⁺) play crucial roles in biological processes.
  • Developing selective and sensitive chemosensors for Zn²⁺ is essential for biological and environmental monitoring.
  • Porphyrin derivatives offer unique photophysical properties suitable for sensor development.

Purpose of the Study:

  • To synthesize and characterize a new functionalized porphyrin-based fluorescent chemosensor (P1) for Zn²⁺ detection.
  • To evaluate the sensing performance of P1, including selectivity, sensitivity, and response time.
  • To confirm the potential applicability of P1 as a reliable fluorescent sensor for Zn²⁺.

Main Methods:

  • Synthesis and characterization of the functionalized porphyrin (P1).

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Last Updated: May 13, 2026

Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay
07:55

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Published on: June 2, 2023

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  • Spectroscopic analysis (absorption and fluorescence) of P1 in the presence of various metal ions.
  • Determination of the binding stoichiometry and detection limit for Zn²⁺.
  • Evaluation of sensor performance under physiological pH conditions.

    • Main Results:

    • The synthesized P1 exhibited significant ratiometric changes in absorption and fluorescence upon binding with Zn²⁺.
    • A 1:1 complex formation between Zn²⁺ and P1 was observed.
    • P1 demonstrated high selectivity and sensitivity for Zn²⁺ over other metal ions, with a detection limit of 1.8 mM.
    • The sensor displayed fast response times and excellent reproducibility.

    Conclusions:

    • The developed functionalized porphyrin (P1) serves as an effective fluorescent chemosensor for Zn²⁺.
    • P1 exhibits promising characteristics for real-time Zn²⁺ sensing in biological and environmental samples.
    • The sensor's performance validates its potential for practical applications in zinc ion detection.