SU-E-T-340: Dose Enhancement Due to Backscattered Electrons of Gold Nanoparticle: Size and Shape Dependency Study by Thermoluminescent Dosimetry

2011 ◽  
Vol 38 (6Part15) ◽  
pp. 3565-3565
Author(s):  
T Marques ◽  
G Barbi ◽  
O Baffa ◽  
P Nicolucci
Keyword(s):  
Gold Nanoparticle ◽  
Nanoparticle Size ◽  
Dose Enhancement ◽  
Thermoluminescent Dosimetry ◽  
Size And Shape ◽  
Backscattered Electrons

Gold nanoparticle size and shape influence on osteogenesis of mesenchymal stem cells

Nanoscale ◽  
2016 ◽  
Vol 8 (15) ◽  
pp. 7992-8007 ◽  
Author(s):  
Jingchao Li ◽  
Jia'En Jasmine Li ◽  
Jing Zhang ◽  
Xinlong Wang ◽  
Naoki Kawazoe ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Gold Nanoparticle ◽  
Nanoparticle Size ◽  
Size And Shape ◽  
Shape Influence

scholarly journals Gold Nanoparticle Size and Shape Effects on Cellular Uptake and Intracellular Distribution of siRNA Nanoconstructs

2017 ◽  
Vol 28 (6) ◽  
pp. 1791-1800 ◽  
Author(s):  
Jun Yue ◽  
Timothy Joel Feliciano ◽  
Wenlong Li ◽  
Andrew Lee ◽  
Teri W. Odom
Keyword(s):  
Gold Nanoparticle ◽  
Cellular Uptake ◽  
Intracellular Distribution ◽  
Nanoparticle Size ◽  
Size And Shape ◽  
Shape Effects

scholarly journals DNA Dosimetry with Gold Nanoparticle Irradiated by Proton Beams: A Monte Carlo Study on Dose Enhancement

2021 ◽  
Vol 11 (22) ◽  
pp. 10856
Author(s):  
Ngoc Han Huynh ◽  
James C. L. Chow
Keyword(s):  
Monte Carlo ◽  
Gold Nanoparticle ◽  
Proton Beam ◽  
Beam Energy ◽  
Heavy Atom ◽  
Monte Carlo Study ◽  
Nanoparticle Size ◽  
Proton Radiation ◽  
Dose Enhancement ◽  
Proton Beam Energy

Heavy atom nanoparticles, such as gold nanoparticles, are proven effective radiosensitizers in radiotherapy to enhance the dose delivery for cancer treatment. This study investigated the effectiveness of cancer cell killing, involving gold nanoparticle in proton radiation, by changing the nanoparticle size, proton beam energy, and distance between the nanoparticle and DNA. Monte Carlo (MC) simulation (Geant4-DNA code) was used to determine the dose enhancement in terms of dose enhancement ratio (DER), when a gold nanoparticle is present with the DNA. With varying nanoparticle size (radius = 15–50 nm), distance between the gold nanoparticle and DNA (30–130 nm), as well as proton beam energy (0.5–25 MeV) based on the simulation model, our results showed that the DER value increases with a decrease of distance between the gold nanoparticle and DNA and a decrease of proton beam energy. The maximum DER (1.83) is achieved with a 25 nm-radius gold nanoparticle, irradiated by a 0.5 MeV proton beam and 30 nm away from the DNA.

A detailed experimental and Monte Carlo analysis of gold nanoparticle dose enhancement using 6 MV and 18 MV external beam energies in a macroscopic scale

2021 ◽  
Vol 171 ◽  
pp. 109638
Author(s):  
Tara Gray ◽  
Nema Bassiri ◽  
Shaquan David ◽  
Devanshi Yogeshkumar Patel ◽  
Sotirios Stathakis ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Gold Nanoparticle ◽  
Monte Carlo Analysis ◽  
External Beam ◽  
Macroscopic Scale ◽  
Dose Enhancement

scholarly journals Influence of Nanoparticle Size and Shape on Oligomer Formation of an Amyloidogenic Peptide

2011 ◽  
Vol 2 (10) ◽  
pp. 1171-1177 ◽  
Author(s):  
Edward P. O’Brien ◽  
John. E. Straub ◽  
Bernard R. Brooks ◽  
D. Thirumalai
Keyword(s):  
Nanoparticle Size ◽  
Size And Shape ◽  
Oligomer Formation

scholarly journals Seeded-Growth Experiment Demonstrating Size- and Shape-Dependence on Gold Nanoparticle–Light Interactions

2020 ◽  
Author(s):  
Gail A. Vinnacombe-Willson ◽  
Naihao Chiang ◽  
Paul S. Weiss ◽  
Sarah H. Tolbert ◽  
Leonardo Scarabelli
Keyword(s):  
Gold Nanoparticle ◽  
Growth Experiment ◽  
Seeded Growth ◽  
Size And Shape ◽  
Shape Dependence

scholarly journals How do Nanoparticle Size and Protein Charge Affect Gold Nanoparticle-Protein Interactions?

2016 ◽  
Vol 110 (3) ◽  
pp. 529a-530a ◽  
Author(s):  
Nicholas C. Fitzkee ◽  
Ailin Wang ◽  
Karen E. Woods ◽  
Randika Perera
Keyword(s):  
Gold Nanoparticle ◽  
Protein Interactions ◽  
Nanoparticle Size ◽  
Protein Charge
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