Study on the Photo-thermal Effect of Gold Nanorods Irradiated with Near Infrared Region Laser in Different Conditions_Journal of Biomedical Engineering

Authors：

ZHANGShiwen ¹ ,  HEXiaoguang ² , DONGShouan ³ , LIXiaojiang ¹ , YANGFulong ³ , WANGYuanling ²

1. Department of Head and Neck, the Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China;
2. Department of Head and Neck, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China;
3. Studying and Developing Centre of Kunming Noble Metal Research Institution, Kunming 650221, China;

Corresponding author：

HEXiaoguang, Email: hexg1018@163.com

Keywords：

gold nanorods; near infrared laser; photo-thermal effect; physiotherapy

DOI：

10.7507/1001-5515.20150148

Video：

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This article explores the possible influencing factor and regular pattern of temperature rise induced by photo-thermal effect of gold nanorods when irradiated with near infrared region (NIR) laser. We used transmission electron microscope and UV-Vis-NIR spectrometer to characterize gold nanorods, then used 808 nm NIR laser with different power to irradiate the gold nanorods in different conditions and measured the temperature of the above solution. The higher the concentration of gold nanorods, the faster the temperature rose and the bigger its amplitude was. When the concentration of gold nanorods was fixed, the relation between power of laser and amplitude of temperature rise was linear. Temperature rise was also related to the shape of container. It could be concluded that amplitude of temperature rise of gold nanorods reaction system was related with concentration of the particles, irradiated power and shape of the container, so that we could control the temperature easily by regulating the irradiated power size of NIR laser in the experiments.

Citation： ZHANGShiwen, HEXiaoguang, DONGShouan, LIXiaojiang, YANGFulong, WANGYuanling. Study on the Photo-thermal Effect of Gold Nanorods Irradiated with Near Infrared Region Laser in Different Conditions. Journal of Biomedical Engineering, 2015, 32(4): 821-825. doi: 10.7507/1001-5515.20150148 Copy

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1. HUANG Xiaohua,JAIN P K,EL-SAYED I H,et al.Plasmonic photothermal therapy (PPTT) using gold nanoparticles[J].Lasers Med Sci,2008,23(3):217-228.
2. LINK S,El-SAYED M A.Shape and size dependence of radiative,non-radiative and photothermal properties of gold nanocrystals[J].Int Rev Phys Chem,2000,19(3):409-453.
3. JAIN P K,LEE K S,EL-SAYED I H,et al.Calculated absorption and scattering properties of Gold nanoparticles of different size,shape,and composition:applications in biological imaging and biomedicine[J].J Phys Chem B,2006,110:7238-7248.
4. DU H,FUH R C A,LI Junzhong,et al.PhotochemCAD:A computer-aided design and research tool in photochemistry[J].Photochem Photobiol,1998,68(2):141-142.
5. KHLEBTSOV B,ZHAROV V,MELNIKOV A,et al.Optical amplification of photothermal therapy with gold nanoparticles and nanoclusters[J].Nanotechnology,2006,17(20):5167-5179.
6. 张安平,刘宝华,张连阳.温热治疗肿瘤的分子学研究进展[J].世界华人消化杂志,2006,14(16):1726-1730.
7. HILDEBRANDT B,WUST P,AHLERS O,et al.The cellular and molecular basis of hyperthermia[J].Crit Rev Oncol Hematol,2002,43(1):33-56.

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