Modulating Neurons via Optothermal, Magnetic, and Electrical Mechanisms Using Metal Nanoparticles

The nervous system plays a vital role in maintaining overall health. Recent nanotechnology advances enable precise control of neuronal activity using metal nanoparticles, which convert external stimuli into electrical, mechanical, or thermal signals to modulate excitability. This review explores three primary neuromodulation strategies (e.g., electrical, magnetic, and optothermal stimulation) where magnetic methods create magnetothermal and magnetomechanical effects, optothermal techniques use surface plasmon resonance to activate heat-sensitive ion channels, and electrical approaches alter membrane potential via the high conductivity of nanoparticles. These methods hold significant potential for treating neurological disorders such as chronic pain, epilepsy, and Parkinson’s disease, though challenges like biocompatibility, metal ion toxicity, and efficient nanoparticle clearance must be addressed. To overcome these barriers, ongoing research focuses on coating nanoparticles with protective layers, modifying their surfaces to improve safety, and designing them in ways that help the body clear them more easily. Incorporating targeted delivery systems, biodegradable materials, and stimuli-responsive coatings into nanoparticle design could further improve safety, enhance personalization, and enable precise, reversible control of brain circuits, opening new avenues for treating neurological conditions.

• Publication year

  2025

• Venue

  Journal of Biomimetics, Biomaterials and Biomedical Engineering

• Publication date

  2025-10-27

• Fields of study

  Not labeled

• Identifiers
  DOI 10.4028/p-PMJe5k
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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