posted on 2024-02-01, 06:13authored byKrishna
Priya Hazarika, C. Borgohain, J. P. Borah
To maximize heat
release from immobilized nanoparticles (NPs),
a detailed understanding of the controlled dipolar interaction is
essential for challenging magnetic hyperthermia (MH) therapies. To
design optimal MH experiments, it is necessary to precisely determine
magnetic states impacted by the inevitable concurrence of magnetic
interactions under a common experimental form. In this work, we describe
how the presence of dipolar interaction significantly alters the heating
mechanism of host materials when NPs are embedded in them for MH applications.
The concentration of the NPs and the intensity of their interaction
can profoundly impact the amplitude and shape of the heating curves
of the host material. The heating capability of interacting NPs might
be enhanced or diminished, depending on their concentration within
the host material. We propose chitosan- and dextran-coated Gd-doped
Fe3O4 NPs directing dipole interactions effective
for the linear regime to enlighten the pragmatic trends. The outcomes
of our study may have substantial implications for cancer therapy
and could inspire novel approaches for maximizing the effectiveness
of MH.