Highly efficient phosphors in cancer sensing and PDT

Brian G. Yust, Lawrence C. Mimun, Dhiraj K. Sardar, Gangadharan Ajith Kumar, Peter J. Hornsby, Jason Rocha

Producción científica: Conference contribution

Resumen

Highly efficient upconverting phosphors (NaYF4) doped with erbium ions are bio-conjugated and used for cancer imaging and photodynamic therapy. Once they are conjugated, the particles are injected into mice to demonstrate that cancer imaging with a near-infrared excitation source is possible. Finally, the particles are also conjugated with a photosensitive molecule with strong absorption near the upconversion emission peak (∼ 550nm). The upconversion energy causes the photosensitive molecule to create highly reactive oxidative species, which puncture and kill the cell to which it is attached. These particles are then used in a mouse model, and the size of the tumors is modeled as a function of the dosage and duration of the photodynamic therapy.

Idioma originalEnglish (US)
Título de la publicación alojadaReporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications IV
DOI
EstadoPublished - 2012
EventoReporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications IV - San Francisco, CA, United States
Duración: ene 23 2012ene 25 2012

Serie de la publicación

NombreProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volumen8233
ISSN (versión impresa)1605-7422

Other

OtherReporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications IV
País/TerritorioUnited States
CiudadSan Francisco, CA
Período1/23/121/25/12

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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