Pulsed-Laser-Induced Modification of Gold Nanorods: Damage Thresholds and Impact on Photoacoustic Imaging in Turbid Media

2018 ◽  
Author(s):  
Andrew M. Fales ◽  
William C. Vogt ◽  
Keith A. Wear ◽  
Ilko K. Ilev ◽  
Joshua Pfefer
Keyword(s):  
Gold Nanorods ◽  
Photoacoustic Imaging ◽  
Pulsed Laser ◽  
Turbid Media

scholarly journals Pulsed laser damage of gold nanorods in turbid media and its impact on multi-spectral photoacoustic imaging

2019 ◽  
Vol 10 (4) ◽  
pp. 1919 ◽  
Author(s):  
Andrew M. Fales ◽  
William C. Vogt ◽  
Keith A. Wear ◽  
Ilko K. Ilev ◽  
T. Joshua Pfefer
Keyword(s):  
Gold Nanorods ◽  
Photoacoustic Imaging ◽  
Pulsed Laser ◽  
Turbid Media ◽  
Laser Damage

Thermal dynamics of pulsed-laser excited gold nanorods in suspension

Nanoscale ◽  
2017 ◽  
Vol 9 (44) ◽  
pp. 17284-17292 ◽  
Author(s):  
Anton Plech ◽  
Shyjumon Ibrahimkutty ◽  
Stefan Reich ◽  
Gemma Newby
Keyword(s):  
Gold Nanorods ◽  
Bubble Formation ◽  
Pulsed Laser ◽  
Metallic Nanostructures ◽  
Thermal Dynamics

Photothermal reactions of metallic nanostructures, such as gold nanorods show appealing structural relaxations, such as bubble formation or particle modification.

scholarly journals Biological reduction of nitroimidazole-functionalized gold nanorods for photoacoustic imaging of tumor hypoxia

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16863-16868 ◽  
Author(s):  
Yui Umehara ◽  
Toki Kageyama ◽  
Aoi Son ◽  
Yu Kimura ◽  
Teruyuki Kondo ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Photoacoustic Imaging ◽  
Tumor Hypoxia ◽  
Biological Reduction ◽  
Selective Accumulation ◽  
Tumor Selective

Tumor-selective accumulation of gold nanorods (GNR) has been demonstrated for visualization of tumor hypoxia by photoacoustic imaging.

In vivo photoacoustic imaging with multiple selective targeting using bioconjugated gold nanorods

2008 ◽  
Author(s):  
Chen-Wei Wei ◽  
Chao-Kang Liao ◽  
Ying-Yi Chen ◽  
Churng-Ren Chris Wang ◽  
Ann-Ann Ding ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Photoacoustic Imaging ◽  
Selective Targeting

Dichroism of Poly(vinylalcohol) Films Containing Gold Nanorods Induced by Polarized Pulsed-Laser Irradiation

2003 ◽  
Vol 42 (Part 1, No. 4A) ◽  
pp. 1749-1750 ◽  
Author(s):  
Yasuro Niidome ◽  
Shinji Urakawa ◽  
Miyuki Kawahara ◽  
Sunao Yamada
Keyword(s):  
Laser Irradiation ◽  
Gold Nanorods ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

scholarly journals Photoacoustic molecular imaging using combined acupuncture and gold nanorods as a composite contrast agent

2019 ◽  
Vol 12 (03) ◽  
pp. 1941004
Author(s):  
Dan Wu ◽  
Xinxin Zhang ◽  
Jian Rong ◽  
Huabei Jiang
Keyword(s):  
Contrast Agent ◽  
Contrast Enhancement ◽  
Mouse Brain ◽  
Gold Nanorods ◽  
Near Infrared ◽  
Photoacoustic Imaging ◽  
Local Concentration ◽  
Quantitative Results ◽  
Zusanli Acupoint

In this study, we developed a novel photoacoustic imaging technique based on poly (ethyleneglycol)-coated (PEGylated) gold nanorods (PEG-GNRs) (as the contrast agent) combined with traditional Chinese medicine (TCM) acupuncture (as the auxiliary method) for quantitatively monitoring contrast enhancement in the vasculature of a mouse brain in vivo. This study takes advantage of the strong near-infrared absorption (peak at [Formula: see text][Formula: see text]nm) of GNRs and the ability to adjust the hemodynamics of acupuncture. Experimental results show that photoacoustic tomography (PAT) successfully reveals the optical absorption variation of the vasculature of the mouse brain in response to intravenous administration of GNRs and acupuncture at the Zusanli acupoint (ST36) both individually and combined. The quantitative measurement of contrast enhancement indicates that the composite contrast agents (integration of acupuncture and GNRs) would greatly enhance the photoacoustic imaging contrast. The quantitative results also have the potential to estimate the local concentration of GNRs and even the real-time effects of acupuncture.

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