scholarly journals TUNABLE-FOCUS MICROLENSES ACTUATED BY INFRARED-LIGHT-RESPONSIVE HYDROGELS WITH ENTRAPPED GOLD NANOPARTICLES FOR FIBER ENDOSCOPY

2008 ◽  
Author(s):  
X. Zeng ◽  
H. Jiang
Keyword(s):  
Gold Nanoparticles ◽  
Infrared Light ◽  
Responsive Hydrogels

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.

Triggered drug release from hybrid thermoresponsive nanoparticles using near infrared light

Nanomedicine ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 219-234 ◽  
Author(s):  
Isabel Ortiz de Solorzano ◽  
Martin Prieto ◽  
Gracia Mendoza ◽  
Victor Sebastian ◽  
Manuel Arruebo
Keyword(s):  
Drug Delivery ◽  
Gold Nanoparticles ◽  
Colloidal Stability ◽  
Near Infrared ◽  
Chemical Characterization ◽  
Infrared Light ◽  
Galvanic Replacement ◽  
Heating Efficiency ◽  
Hollow Gold Nanoparticles

Aim: Developing hybrid poly(N-isopropylacrylamide)-based nanogels decorated with plasmonic hollow gold nanoparticles for on-demand drug delivery and their physico-chemical characterization, bupivacaine loading and release ability upon light irradiation, and in vitro cell viability. Materials & methods: Hollow gold nanoparticles were prepared by galvanic replacement reaction; poly(N-isopropylacrylamide)-based nanogels were synthesized via precipitation polymerization and their electrostatic coupling was accomplished using poly(allylamine hydrochloride) as cationic polyelectrolyte linker. Results & conclusion: Colloidal stability of the resulted hybrid nanovectors was demonstrated under physiological conditions together with their fast response and excellent heating efficiency after light stimulation, indicating their potential use as triggered drug-delivery vectors. Moreover, their influence on cell metabolism and cell cycle under subcytotoxic doses were studied showing excellent cytocompatibility.

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.

Gold nanoparticles for the in situ polymerization of near-infrared responsive hydrogels based on fibrin

2019 ◽  
Vol 100 ◽  
pp. 306-315 ◽  
Author(s):  
Clara Escudero-Duch ◽  
Francisco Martin-Saavedra ◽  
Martin Prieto ◽  
Silvia Sanchez-Casanova ◽  
Daniel Lopez ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Near Infrared ◽  
In Situ Polymerization ◽  
Responsive Hydrogels

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

scholarly journals Use in vitro of Gold Nanoparticles Functionalized with Folic Acid as a Photothermal Agent on Treatment of HeLa Cells

2018 ◽  
Vol 62 (1) ◽  
Author(s):  
Linda Bertel Garay ◽  
Fernando Martínez Ortega ◽  
Stelia Carolina Méndez-Sanchez
Keyword(s):  
Gold Nanoparticles ◽  
Folic Acid ◽  
Cancer Cells ◽  
Hela Cells ◽  
Near Infrared ◽  
Infrared Light ◽  
Molar Ratio ◽  
Functionalized Gold Nanoparticles ◽  
Dose Dependent

<p>Folic acid (FA) is used as a recognition molecule to achieve selective internalization in cancer cells. Here functionalized gold nanoparticles with folic acid (AuNP-FA) are proposed as suitable therapeutic agents for cervix cancer cells by photothermal damage. The functionalized gold nanoparticles with folic acid were synthesized by mixing hydrogen tetrachloroaurate with folic acid in a molar ratio of 0.56/1 under radiation of mercury lamp (λ<sub>max</sub>=254 nm). HeLa cells were incubated with AuNP-FA during 48 h, then were irradiated and the cytotoxicity was analyzed 12 h after irradiation. The AuNP-FA were dose-dependent cytotoxic under irradiation and not cytotoxic in the absence of radiation. The viability of cancer cells treated with functionalized and non-functionalized gold nanoparticles (AuNPs), with and without near infrared light at 808 nm, was measured by MTT assays. This work provides useful guidance toward the synthesis of biocompatible nanomaterials for biological applications.</p>

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