Radiofrequency heating pathways for gold nanoparticles

Femtosecond-pulsed optical heating of gold nanoparticles

FEM Analysis of Laser-Induced Heating of Gold Nanoparticles

Nanoparticles are being extensively researched as a noninvasive method for selectively targeting and killing cancer cells. We present a method for modeling the thermal activation of a gold nanoparticle and the thermal response of its surrounding medium under single and multi-pulse excitation. It is found that the effective heating range of a nanoparticle is determined by both shape (sphere vs. ...

Nanoscale heating of laser irradiated single gold nanoparticles in liquid.

Biological applications where nanoparticles are used in a cell environment with laser irradiation are rapidly emerging. Investigation of the localized heating effect due to the laser irradiation on the particle is required to preclude unintended thermal effects. While bulk temperature rise can be determined using macroscale measurement methods, observation of the actual temperature within the n...

Gold-gold sulfide nanoshell as a novel intensifier for anti-tumor effects of radiofrequency fields

Objective(s):Several studies have been carried out to investigate the effect of various nanoparticles exposed to radiofrequency (RF) waves on cancerous tissues. In this study, a colon carcinoma tumor model was irradiated by RF in the presence of gold-gold sulfide (GGS) nanoshells. Materials and Methods: Synthesis and characterization of GGS nanoshells were initially performed. CT26 cells were ...

Electrolytic conductivity-related radiofrequency heating of aqueous suspensions of nanoparticles for biomedicine.

The development of suitable contrast agents can significantly enhance the efficiency of modern imaging and treatment techniques, such as thermoacoustic (TA) tomography and radio-frequency (RF) hyperthermia of cancer. Here, we examine the heating of aqueous suspensions of silicon (Si) and gold (Au) nanoparticles (NPs) under RF irradiation in the MHz frequency range. The heating rate of aqueous s...