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Related Experiment Video

Updated: May 2, 2026

Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography

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Published on: January 17, 2020

An Activity-Based Sensing Approach to Monitor Nanomaterial-Promoted Changes in Labile Metal Pools in Living Systems.

Javier Bonet-Aleta^1,2,3,4,5,6, Aidan T Pezacki^5,7, Miku Oi⁵

¹Instituto de Nanociencia y Materiales de Aragon (INMA) CSIC-Universidad de Zaragoza, Campus Rio Ebro, Edificio I+D, C/Poeta Mariano Esquillor, s/n, 50018 Zaragoza, Spain.

Chemical & Biomedical Imaging

|May 1, 2026

Summary

This summary is machine-generated.

Activity-based sensing reveals how copper nanoparticles change copper ion balance in cells. This helps understand nanomedicine action and develop better cancer treatments.

Keywords:

activity-based sensing anticancer nanomedicines copper nanoparticles oxidative stress transition metal signaling

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Area of Science:

Nanomedicine
Biomedical Engineering
Materials Science

Background:

Metal-based nanoparticles show promise for cancer diagnosis and treatment.
Understanding nanomedicine mechanisms requires knowledge of metal ion dynamics in biological environments.

Purpose of the Study:

To investigate labile copper pools generated by anticancer copper nanomedicines using activity-based sensing.
To elucidate the molecular mechanisms underlying copper nanomedicine action.

Main Methods:

Application of activity-based sensing for metal and oxidation state-specific detection of labile copper.
Treatment of cells with copper-releasing nanoparticles.
Analysis of copper ion ratios (Cu-(I)/Cu-(II)) and cellular responses.

Main Results:

Copper nanomedicine treatment altered labile copper ion ratios, increasing labile Cu-(II) while decreasing total labile copper.
Labile copper release activated antioxidant pathways (glutathione, NRF2) and metal homeostasis mechanisms (ATP7B, CTR1).

Conclusions:

Activity-based sensing is a valuable tool for imaging labile metals and understanding nanomedicine mechanisms.
Findings guide the development of effective nanomedicines targeting metal-dependent diseases.