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Magnetic Field-Responsive Smart bioMOF Composites Based on Bi(III)-Ellagate SU-101.

Darina Francesca Picchi^1,2, Catalina Biglione¹, Julie Charlotte Pauline Mellerin³

¹Advanced Porous Materials Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, Móstoles 28935, Madrid, Spain.

ACS Applied Materials & Interfaces

|March 17, 2026

Summary

New magnetic nanocomposites from bioderived metal-organic frameworks (bioMOFs) offer controlled drug release and cancer cell targeting. These magneto-responsive materials show promise for advanced biomedical applications.

Keywords:

imaging magnetic hyperthermia magnetic metal–organic frameworks mechanical stress theragnosis

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Biofunctionalization of Magnetic Nanomaterials

Biofunctionalization of Magnetic Nanomaterials

Published on: July 16, 2020

Area of Science:

Materials Science
Nanotechnology
Biomedical Engineering

Background:

Bioderived metal-organic frameworks (bioMOFs) are promising for medical uses due to biocompatibility.
Integrating external stimulus responsiveness into bioMOFs without compromising structure is challenging.

Purpose of the Study:

To synthesize and characterize magneto-responsive nanocomposites using a Bi(III)-ellagate bioMOF (SU-101) and magnetic nanoparticles.
To evaluate their potential for controlled cargo release, cancer therapy, and as MRI contrast agents.

Main Methods:

Synthesis of bioMOF SU-101 incorporating ultrasmall magnetic nanoparticles.
Characterization of structural integrity, magnetic response (AMF and RMF), cargo loading/release, and in vitro cancer cell viability.
Assessment of MRI relaxivity.

Main Results:

Successfully integrated magnetic nanoparticles into bioMOF SU-101 without structural compromise.
Demonstrated magnetic responsiveness enabling remote control of thermal/mechanical effects for cargo release.
Achieved significant reduction in cancer cell viability and confirmed potential as MRI contrast agents.

Conclusions:

Magneto-responsive bioMOF SU-101 nanocomposites are multifunctional platforms for biomedical applications.
These materials offer precise control over cargo release and therapeutic effects via magnetic fields.
Potential use as theranostic agents combining therapy and diagnostics (MRI).