Emergence of Magnetic Monopole-like Behavior in Iron Oxide Nanoparticles Grafted with Chiral Brushes: A Chiral Induced Spin Selectivity Manifestation

Elizabeth Shiby; Yu shao; Dang Phuong Lan Nguyen; Puja Thapa; Supriya Ghosh; Ishwari Chaitanya Joshi; Yuming Huang; Supawitch Hoijang; Ramtin Yarinia; Christopher K. Ober; T. Randall Lee; Brian P. Bloom; David H. Waldeck

doi:10.1039/d5mh01737h

January 1, 2026Materials HorizonsOpen Access

Emergence of Magnetic Monopole-like Behavior in Iron Oxide Nanoparticles Grafted with Chiral Brushes: A Chiral Induced Spin Selectivity Manifestation

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Key Points

The research aims to investigate the magnetic behavior of iron oxide nanoparticles modified with chiral brushes.
Characterization of ~20 nm single domain and ~200 nm multidomain iron oxide nanoparticles.
Surface functionalization using poly(L- or D-phenylalanine) chiral brushes of different lengths.
Evaluation of magnetic properties to observe spin selectivity effects.
Magnetic monopole-like behavior is observed in functionalized nanoparticles.
Chiral brush length influences the magnetic properties of the nanoparticles.
Distinct differences between single domain and multidomain nanoparticles are reported.

Implication

This examination reveals magnetic properties in iron oxide nanoparticles, indicating the significance of chiral-induced spin selectivity.

Abstract

We examine the magnetic properties of ~20 nm single domain and ~200 nm multidomain iron oxide nanoparticles that are surface functionalized with poly(L- or D-phenylalanine) chiral brushes of variable length....

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Cite This Study

Shiby et al. (2026) studied this question.

synapsesocial.com/papers/69d8940c6c1944d70ce04fd6 https://doi.org/10.1039/d5mh01737h

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Emergence of Magnetic Monopole-like Behavior in Iron Oxide Nanoparticles Grafted with Chiral Brushes: A Chiral Induced Spin Selectivity Manifestation

Key Points

Implication

Abstract

Discussion

Cite This Study

Emergence of Magnetic Monopole-like Behavior in Iron Oxide Nanoparticles Grafted with Chiral Brushes: A Chiral Induced Spin Selectivity Manifestation

Key Points

Implication

Abstract

Discussion

Cite This Study

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