An IR modulator based on the self-assembly of gold nanoparticles on germanium

2014 ◽  
Vol 16 (36) ◽  
pp. 19402-19407 ◽  
Author(s):  
Harekrishna Ghosh ◽  
Ahmed Bouhekka ◽  
Thomas Bürgi
Keyword(s):  
Gold Nanoparticles ◽  
Valence Band ◽  
Self Assembly ◽  
Near Infrared ◽  
The Self ◽  
Band Edge ◽  
Infrared Light ◽  
Valence Band Edge ◽  
Near Infrared Light

Germanium modified with gold nanoparticles shows a drastically increased concentration of holes near the valence band edge upon illumination with visible or near infrared light.

Green and facile preparation and dual-enhancement cytotoxicity of eupatilin loaded on hollow gold nanoparticles under near-infrared light

2021 ◽  
Author(s):  
Yi-wei Sun ◽  
Hui Liang ◽  
Kun-qi Zong ◽  
Xin Che ◽  
Da-li Meng
Keyword(s):  
Gold Nanoparticles ◽  
Natural Products ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Hollow Gold Nanoparticles ◽  
Facile Preparation ◽  
Gold Nanomaterials ◽  
Anti Tumor Activity ◽  
Targeted Release

Using NIR irradiation, gold nanomaterials loaded with natural products can achieve targeted release as well as better anti-tumor activity.

Interfacial self-assembly of gold nanoparticle-polymer nanoconjugates into microcapsules with near-infrared light modulated biphasic catalysis efficiency

2019 ◽  
Vol 55 (72) ◽  
pp. 10760-10763 ◽  
Author(s):  
Jiaojiao Su ◽  
Shengliang Wang ◽  
Zhijun Xu ◽  
Guangyu Wu ◽  
Lei Wang ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Catalytic Reaction ◽  
Self Assembly ◽  
Reaction Rate ◽  
Near Infrared ◽  
Light Irradiation ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Interfacial Assembly ◽  
Catalysis Efficiency

Gold nanoparticle-based microcapsules based on the interfacial assembly significantly enhanced the biphasic catalytic reaction rate upon near-infrared light irradiation.

scholarly journals PREPARATION AND CHARACTERIZATION OF A NEAR-INFRARED LIGHT RESPONSIVE MICROCAPSULE SYSTEM FOR CANCER THERAPY

2014 ◽  
Vol 07 (01) ◽  
pp. 1350037 ◽  
Author(s):  
YINGFENG DI ◽  
SISI CUI ◽  
YUEQING GU
Keyword(s):  
Cancer Therapy ◽  
Gold Nanorods ◽  
Self Assembly ◽  
Near Infrared ◽  
Infrared Light ◽  
Layer By Layer ◽  
Near Infrared Light ◽  
Nir Light ◽  
Alternative Material ◽  
Confocal Fluorescence Imaging

A novel near-infrared light responsive microcapsule system, gold nanorod-covered DOX-loaded hollow CaCO 3 microcapsule ( AuNR -HM-DOX) is developed for cancer therapy. The hollow CaCO 3 microcapsules were prepared based on the self-assembly between chitosan and sodium alginate on CaCO 3 particles via layer-by-layer technique, and then covered with gold nanorods to obtain the microcapsule system. Upon near-infrared (NIR) irradiation, microcapsule with gold nanorods can convert the absorbed NIR light into heat. Meanwhile, doxorubicin (DOX), a chemotherapy drug, is loaded into the microcapsule system via electrostatic adsorption for combined photothermal therapy and chemotherapy. Properties of AuNR -HM-DOX including grain diameter, optical spectra were characterized. Confocal fluorescence imaging was performed to observe the morphology of the capsules and existence of DOX in the core, confirming the successful loading of DOX. The release of DOX from the capsules under continuous NIR irradiation was investigated to evaluate the temperature responsiveness of AuNR -HM-DOX. Results indicate that AuNR -HM-DOX microcapsules possess uniform particle size and high light responsiveness. The combination of chemical and physical therapy of AuNR -HM-DOX features great potential as an adjuvant therapeutic alternative material for combined cancer therapy.

Gold nanoparticles doped metal-organic frameworks as near-infrared light-enhanced cascade nanozyme against hypoxic tumors

Nano Research ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 653-660 ◽  
Author(s):  
Xinli Liu ◽  
Yongchun Pan ◽  
Jingjing Yang ◽  
Yanfeng Gao ◽  
Ting Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Near Infrared ◽  
Metal Organic Frameworks ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Metal Organic

Polyhedral shaped gold nanoparticles with outstanding near-infrared light absorption

2009 ◽  
Vol 97 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Alvaro Mayoral ◽  
Alma Vazquez-Duran ◽  
Hector Barron ◽  
Miguel Jose-Yacaman
Keyword(s):  
Gold Nanoparticles ◽  
Light Absorption ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light

Self-assembly of upconversion nanoclusters with an amphiphilic copolymer for near-infrared- and temperature-triggered drug release

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85293-85302 ◽  
Author(s):  
Kai Yan ◽  
Min Chen ◽  
Shuxue Zhou ◽  
Limin Wu
Keyword(s):  
Drug Release ◽  
Self Assembly ◽  
Near Infrared ◽  
Amphiphilic Copolymer ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Colloidal Clusters ◽  
Triggered Drug Release

The hybrid colloidal clusters were prepared by self-assembly of multiresponsive copolymer with hydrophobic nanocrystals, and which was able to near-infrared light and temperature triggered drug release.

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