Gold nanorod-seeded synthesis of Au@Ag/Au nanospheres with broad and intense near-infrared absorption for photothermal cancer therapy

2014 ◽  
Vol 2 (23) ◽  
pp. 3667-3673 ◽  
Author(s):  
Xiaosheng Ye ◽  
Hui Shi ◽  
Xiaoxiao He ◽  
Kemin Wang ◽  
Duo Li ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Au Nanoparticles ◽  
Gold Nanorod ◽  
Synthesis Strategy ◽  
Nir Absorption

A shape-controllable and spectrum-adjustable synthesis strategy is proposed to develop Au@Ag/Au nanoparticles with intense NIR-absorption, efficacious thermotherapy and low dark-cytotoxicity.

Paddlewheel-type diruthenium(iii,iii) tetrakis(2-aminopyridinate) complexes with NIR absorption features: combined experimental and theoretical study

2019 ◽  
Vol 48 (33) ◽  
pp. 12421-12429
Author(s):  
Yusuke Kataoka ◽  
Nanako Imasaki ◽  
Kazuki Arakawa ◽  
Natsumi Yano ◽  
Hiroshi Sakiyama ◽  
...  
Keyword(s):  
Infrared Absorption ◽  
Near Infrared ◽  
Theoretical Study ◽  
Nir Absorption ◽  
Absorption Features

Aminopyridinate-bridged Ru2(iii,iii) complexes with near-infrared absorption features were prepared and characterized by experimental and theoretical techniques.

Near-Infrared Responsive PEGylated Gold Nanorod and Doxorubicin Loaded Dissolvable Hyaluronic Acid Microneedles for Human Epidermoid Cancer Therapy

2018 ◽  
Vol 1 (2) ◽  
pp. 1800008 ◽  
Author(s):  
Ying Hao ◽  
YuWen Chen ◽  
MinYi Lei ◽  
TaoYe Zhang ◽  
YiPing Cao ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Cancer Therapy ◽  
Near Infrared ◽  
Gold Nanorod

Synthesis and electronic properties of carbazole-based core-modified diporphyrins showing near infrared absorption

2020 ◽  
Vol 56 (95) ◽  
pp. 15048-15051
Author(s):  
Chihiro Maeda ◽  
Takuma Shirakawa ◽  
Tadashi Ema
Keyword(s):  
Electronic Properties ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Nir Absorption

A highly conjugated carbazole-based fused diporphyrin shows NIR absorption.

scholarly journals Chitosan-Capped Au Nanoparticles for Laser Photothermal Ablation Therapy: UV-Vis Characterization and Optothermal Performances

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Giancarlo Margheri ◽  
Silvana Trigari ◽  
Mariabeatrice Berti ◽  
Maurizio Muniz Miranda ◽  
Rita Traversi
Keyword(s):  
Near Infrared ◽  
Au Nanoparticles ◽  
Ablation Therapy ◽  
Synthesis Conditions ◽  
Photothermal Ablation ◽  
Nir Absorption ◽  
One Step ◽  
The One ◽  
Refined Version

We have reported on the synthesis and characterization of near-infrared- (NIR-) absorbing colloidal nanoparticles prepared by exploiting the one-step reaction of HAuCl4 and Na2S2O3, followed by their stabilization with chitosan. This reaction also produces a big amount of unwanted nanoparticles detuned with respect to the NIR spectral region. For this reason, it is usually assumed that the product has to be filtered and enriched to enhance its NIR absorption, and the possible exploitation of the simpler raw product has never been worthy to be considered. Aiming to investigate this missing aspect, we chose to avoid the purification steps and rather focused on the preparation of the unrefined colloid, identifying the synthesis conditions that maximize its NIR absorbance and, subsequently, testing it as an optothermal transducer by measuring its molar heating rate (MHR). As expected, we found that the performances of the raw colloid are indeed lower than those of its refined version, but only to a limited extent. Moreover, MHR is unexpectedly higher than that deducible for other classical NIR-absorbing nanoparticles, like Au nanorods or Au nanostars. Thus, the product of the simpler preparation protocol appears as a competitive trade-off solution between easy manufacturing and optothermal performances.

Developing strong NIR absorption materials through linear planar π-conjugated cyclopalladated complex dimers

2021 ◽  
Author(s):  
Qi Luo ◽  
Jing Zhang ◽  
Jiangbin Xia
Keyword(s):  
Infrared Absorption ◽  
Near Infrared ◽  
Nir Absorption

Strong near-infrared absorption complexes with linear planar π-conjugated structure were presented.

scholarly journals Polydopamine-decorated tobacco mosaic virus for photoacoustic/magnetic resonance bimodal imaging and photothermal cancer therapy

Nanoscale ◽  
2019 ◽  
Vol 11 (19) ◽  
pp. 9760-9768 ◽  
Author(s):  
He Hu ◽  
Qi Yang ◽  
Simona Baroni ◽  
Hong Yang ◽  
Silvio Aime ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Cancer Therapy ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Conversion Efficiency ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Photothermal Conversion ◽  
Bimodal Imaging ◽  
Good Biocompatibility

The Gd-TMV–PDA nanotheranostic reagents demonstrated highly r1-relaxivity of ∼80 mM−1 s−1 at 60 MHz, strong near-infrared absorption with high photothermal conversion efficiency (28.9%), excellent photoacoustic contrast and good biocompatibility.

Compact chelator-free Ni-integrated CuS nanoparticles with tunable near-infrared absorption and enhanced relaxivity for in vivo dual-modal photoacoustic/MR imaging

Nanoscale ◽  
2015 ◽  
Vol 7 (42) ◽  
pp. 17631-17636 ◽  
Author(s):  
Duyang Gao ◽  
Pengfei Zhang ◽  
Chengbo Liu ◽  
Chi Chen ◽  
Guanhui Gao ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Nir Absorption

A novel PA/MRI dual-modal imaging nanoprobe with tunable NIR absorption and enhanced T1 relaxivity was prepared via chelator-free method.

Morphology-controllable fabrication of organic microcrystals by solid-phase reactions: revealing morphology-sensitive highly efficient phosphorescence and enhanced near-infrared absorption

2015 ◽  
Vol 3 (35) ◽  
pp. 9048-9052 ◽  
Author(s):  
Guo-Ping Yong ◽  
Chen Shen ◽  
Cong Zhang ◽  
Yu-Mei Zhao
Keyword(s):  
Quantum Yield ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Solid Phase ◽  
Solid Reaction ◽  
Highly Efficient ◽  
Nir Absorption ◽  
Phosphorescence Quantum Yield ◽  
Solid Phase Reactions ◽  
Controllable Fabrication

The vapor-solid reaction induced hexangular microflakes exhibit high phosphorescence quantum yield and enhanced NIR absorption.

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