Nanoparticle-enabled terahertz imaging for cancer diagnosis

Seung Jae Oh, Jinyoung Kang, Inhee Maeng, Jin Suck Suh, Yong Min Huh, Seungjoo Haam, Joo Hiuk Son

Research output: Contribution to journalArticlepeer-review

164 Scopus citations


This paper demonstrates the principle of the nanoparticle-contrast-agent- enabled terahertz imaging (CATHI) technique, which yields a dramatic sensitivity of the differential signal from cancer cells with nanoparticles. The terahertz (THz) reflection signal increased beam by 20% in the cancer cells with nanoparticles of gold nano-rods (GNRs) upon their irradiation with a infrared (IR) laser, due to the temperature rise of water in cancer cells by surface plasma ploritons. In the differential mode, the THz signal from the cancer cells with GNRs was 30 times higher than that from the cancer cells without GNRs. As the high sensitivity is achieved by the surface plasmon resonance through IR laser irradiation, the resolution of the CATHI technique can be as good as a few microns and THz endoscopy becomes more feasible.

Original languageEnglish
Pages (from-to)3469-3475
Number of pages7
JournalOptics Express
Issue number5
StatePublished - 2 Mar 2009


Dive into the research topics of 'Nanoparticle-enabled terahertz imaging for cancer diagnosis'. Together they form a unique fingerprint.

Cite this