Nanoparticles Show Promise in Breast Cancer Detection Using Microwave Technologies

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Researchers at King's College London have developed novel zinc ferrite nanoparticles that can enhance the detection of breast cancer using microwave (MW) imaging/sensing. This breakthrough could lead to improved diagnostic techniques for this critical application. The zinc ferrite nanoparticles were synthesized to accumulate in tumors and alter their dielectric properties, making them more detectable using MW technologies.

Key Takeaways:

  • The study demonstrated that nanoparticles can provide significant enhancement in the dielectric properties of target tissue, allowing for improved detection of breast cancer using MW imaging/sensing.
  • Zinc ferrite nanoparticles were synthesized by thermal decomposition and phase transferred using a co-polymer to improve biocompatibility.
  • The nanoparticles showed an increased dielectric constant of up to 49% in tumor regions injected subcutaneously, compared to approximately 3% in non-injected regions.
  • Significant increases in conductivity were also observed, indicating potential application of the particles as MW hyperthermia sensitizers.
  • The study presents the first evaluation of nanoparticles as contrast agents for MW imaging/sensing and highlights their potential to improve tumor detection.
  • Researchers at King's College London successfully synthesized zinc ferrite nanoparticles, demonstrating their potential in breast cancer detection.
  • Additional authors for this study include Annah J. Wilson, Navid Ghavami, Sadie Carter-Searjeant, Mark Green, Panagiotis Kosmas, and Maya Thanou.

Statistics:

  • Nanoparticles showed an increased dielectric constant of up to 49% in tumor regions injected subcutaneously.
  • Significant increases in conductivity of up to 49% were observed in tumor regions injected with nanoparticles, compared to approximately 3% in non-injected regions.
  • The study presents the first evaluation of nanoparticles as contrast agents for MW imaging/sensing, highlighting their potential to improve tumor detection.

Sources:

  • Nanomaterials as electromagnetic sensors for tumour detection. Nanomedicine, 2025;20(10):1139-1148.
  • King's College London Reports Findings in Nanoparticles (Nanomaterials as electromagnetic sensors for tumour detection). Electronics Newsweekly. May 20, 2025; p 684.