中国物理B ›› 2016, Vol. 25 ›› Issue (8): 87301-087301.doi: 10.1088/1674-1056/25/8/087301

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Advantages of using gold hollow nanoshells in cancer photothermal therapy

Sattar Abbasi, Mojtaba Servatkhah, Mohammad Mehdi Keshtkar   

  1. 1 Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran;
    2 Department of Physics, Payame Noor University, P. O. Box 19395-3697, Tehran, Iran
  • 收稿日期:2015-11-14 修回日期:2016-02-29 出版日期:2016-08-05 发布日期:2016-08-05
  • 通讯作者: Sattar Abbasi E-mail:abbasi86@mail.com

Advantages of using gold hollow nanoshells in cancer photothermal therapy

Sattar Abbasi1, Mojtaba Servatkhah1, Mohammad Mehdi Keshtkar2   

  1. 1 Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran;
    2 Department of Physics, Payame Noor University, P. O. Box 19395-3697, Tehran, Iran
  • Received:2015-11-14 Revised:2016-02-29 Online:2016-08-05 Published:2016-08-05
  • Contact: Sattar Abbasi E-mail:abbasi86@mail.com

摘要: Lots of studies have been conducted on the optical properties of gold nanoparticles in the first region of near infrared (650 nm-950 nm), however new findings show that the second region of near-infrared (1000 nm-1350 nm) penetrates to the deeper tissues of the human body. Therefore, using the above-mentioned region in photo-thermal therapy (PTT) of cancer will be more appropriate. In this paper, absorption efficiency is calculated for gold spherical and rod-shaped nanoshells by the finite element method (FEM). The results show that the surface plasmon frequency of these nanostructures is highly dependent on the dimension and thickness of shell and it can be adjusted to the second region of near-infrared. Thus, due to their optical tunability and their high absorption efficiency the hollow nanoshells are the most appropriate options for eradicating cancer tissues.

关键词: surface plasmon, absorption efficiency, near-infrared, nanotubes

Abstract: Lots of studies have been conducted on the optical properties of gold nanoparticles in the first region of near infrared (650 nm-950 nm), however new findings show that the second region of near-infrared (1000 nm-1350 nm) penetrates to the deeper tissues of the human body. Therefore, using the above-mentioned region in photo-thermal therapy (PTT) of cancer will be more appropriate. In this paper, absorption efficiency is calculated for gold spherical and rod-shaped nanoshells by the finite element method (FEM). The results show that the surface plasmon frequency of these nanostructures is highly dependent on the dimension and thickness of shell and it can be adjusted to the second region of near-infrared. Thus, due to their optical tunability and their high absorption efficiency the hollow nanoshells are the most appropriate options for eradicating cancer tissues.

Key words: surface plasmon, absorption efficiency, near-infrared, nanotubes

中图分类号:  (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

  • 73.20.Mf
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 87.50.wp (Therapeutic applications) 78.67.Ch (Nanotubes)