Motor coordination dysfunction induced by gold nanorods core/silver shell nanostructures in mice: disruption in mitochondrial transport and neurotransmitter release

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 59472-59480
Author(s):  
Nan Yang ◽  
Yanyong Liu ◽  
Yinglu Ji ◽  
Zhili Ren ◽  
Jie Meng ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Gold Nanorods ◽  
Neurotransmitter Release ◽  
Motor Coordination ◽  
Mitochondrial Transport ◽  
Shell Nanostructures ◽  
Risk Of Exposure ◽  
Silver Shell

The risk of exposure to silver nanoparticles (AgNPs) is becoming increasingly widespread and causes great concern.

Hemoprotein Bioconjugates of Gold and Silver Nanoparticles and Gold Nanorods:  Structure−Function Correlations

Langmuir ◽  
2007 ◽  
Vol 23 (3) ◽  
pp. 1320-1325 ◽  
Author(s):  
Renjis T. Tom ◽  
A. K. Samal ◽  
T. S. Sreeprasad ◽  
T. Pradeep
Keyword(s):  
Silver Nanoparticles ◽  
Structure Function ◽  
Gold Nanorods ◽  
Gold And Silver Nanoparticles

Interference of Steroidogenesis by Gold Nanorod Core/Silver Shell Nanostructures: Implications for Reproductive Toxicity of Silver Nanomaterials

Small ◽  
2016 ◽  
Vol 13 (10) ◽  
pp. 1602855 ◽  
Author(s):  
Xiumei Jiang ◽  
Liming Wang ◽  
Yinglu Ji ◽  
Jinglong Tang ◽  
Xin Tian ◽  
...  
Keyword(s):  
Reproductive Toxicity ◽  
Gold Nanorod ◽  
Shell Nanostructures ◽  
Silver Nanomaterials ◽  
Silver Shell

Plasmon Enhancement Effect in Au Gold Nanorods@Cu2O Core–Shell Nanostructures and Their Use in Probing Defect States

Langmuir ◽  
2015 ◽  
Vol 31 (4) ◽  
pp. 1537-1546 ◽  
Author(s):  
Xiaowei Shi ◽  
Yinglu Ji ◽  
Shuai Hou ◽  
Wenqi Liu ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Core Shell ◽  
Enhancement Effect ◽  
Defect States ◽  
Shell Nanostructures ◽  
Plasmon Enhancement

Highly effective photodynamic inactivation of E. coli using gold nanorods/SiO2 core–shell nanostructures with embedded verteporfin

2015 ◽  
Vol 51 (91) ◽  
pp. 16365-16368 ◽  
Author(s):  
Kostiantyn Turcheniuk ◽  
Volodymyr Turcheniuk ◽  
Charles-Henri Hage ◽  
Tetiana Dumych ◽  
Rostyslav Bilyy ◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Photodynamic Therapy ◽  
Gold Nanorods ◽  
Virulent Strain ◽  
Silica Shell ◽  
Core Shell ◽  
Photodynamic Inactivation ◽  
E Coli ◽  
Shell Nanostructures ◽  
20 Nm

The potential of gold nanorods coated with a 20 nm silica shell loaded with verteporfin as efficient NIR nanostructures for photodynamic therapy to eradicate a virulent strain of E. coli associated with urinary tract infection is described.

(Gold triangular nanoplate core)@(silver shell) nanostructures as highly sensitive and selective plasmonic nanoprobes for hydrogen sulfide detection

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20250-20257 ◽  
Author(s):  
Hua Mi ◽  
Shengyan Wang ◽  
Hang Yin ◽  
Le Wang ◽  
Lin Mei ◽  
...  
Keyword(s):  
Refractive Index ◽  
Hydrogen Sulfide ◽  
High Refractive Index ◽  
Great Sensitivity ◽  
Refractive Index Sensitivity ◽  
Shell Nanostructures ◽  
Highly Sensitive ◽  
Index Sensitivity ◽  
Silver Shell

AuTNP@Ag nanostructures are developed as nanoprobes for hydrogen sulfide. Owing to the high refractive index sensitivity of Au TNPs and facile sulfurization of silver, AuTNP@Ag nanostructures exhibit great sensitivity to both sulfur ions and H2S gas.

scholarly journals Dansyl-Labelled Ag@SiO2 Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5168
Author(s):  
Elżbieta Szczepańska ◽  
Anna Synak ◽  
Piotr Bojarski ◽  
Paweł Niedziałkowski ◽  
Anna Wcisło ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Intensity ◽  
Control Sample ◽  
Core Shell ◽  
Enhanced Fluorescence ◽  
Shell Nanostructures ◽  
Dansyl Group ◽  
Transmission Electron ◽  
Silver Mirror ◽  
Water Wettability

The present work describes synthesis, characterization, and use of a new dansyl-labelled Ag@SiO2 nanocomposite as an element of a new plasmonic platform to enhance the fluorescence intensity. Keeping in mind that typical surface plasmon resonance (SPR) characteristics of silver nanoparticles coincide well enough with the absorption of dansyl molecules, we used them to build the core of the nanocomposite. Moreover, we utilized 10 nm amino-functionalized silica shell as a separator between silver nanoparticles and the dansyl dye to prevent the dye-to-metal energy transfer. The dansyl group was incorporated into Ag@SiO2 core-shell nanostructures by the reaction of aminopropyltrimethoxysilane with dansyl chloride and we characterized the new dansyl-labelled Ag@SiO2 nanocomposite using transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR). Additionally, water wettability measurements (WWM) were carried out to assess the hydrophobicity and hydrophilicity of the studied surface. We found that the nanocomposite deposited on a semitransparent silver mirror strongly increased the fluorescence intensity of dansyl dye (about 87-fold) compared with the control sample on the glass, proving that the system is a perfect candidate for a sensitive plasmonic platform.

Single-Dosed Genotoxicity Study of Gold Nanorod Core/Silver Shell Nanostructures by Pig-a, Micronucleus, and Comet Assays

2018 ◽  
Vol 14 (11) ◽  
pp. 1953-1964 ◽  
Author(s):  
Dan Wang ◽  
Mo Dan ◽  
Yinglu Ji ◽  
Xiaochun Wu ◽  
Liming Xu ◽  
...  
Keyword(s):  
Gold Nanorod ◽  
Shell Nanostructures ◽  
Silver Shell

scholarly journals Spectral manifestations of the exciton-plasmon interaction of Ag2S quantum dots with silver and gold nanoparticles

2021 ◽  
Vol 23 (1) ◽  
pp. 25-31
Author(s):  
Irina G. Grevtseva ◽  
Tamara A. Chevychelova ◽  
Violetta N. Derepko ◽  
Oleg V. Ovchinnikov ◽  
Mikhail S Smirnov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Silver Nanoparticles ◽  
Gold Nanorods ◽  
Thioglycolic Acid ◽  
Hybrid Nanostructures ◽  
Luminescence Spectra ◽  
Ag Nps ◽  
Fano Effect ◽  
Pyramidal Geometry ◽  
Ag2s Quantum Dots

The purpose of our study was to develop methods for creating hybrid nanostructures based on colloidal Ag2S quantum dots, pyramidal silver nanoparticles, Au nanorods, and to determine the spectral-luminescent manifestations of exciton-plasmon interactions in these structures. The objects of the study were Ag2S quantum dots passivated with thioglycolic acid (Ag2S/TGA QDs) and 2-mercaptopropionic acid (Ag2S/2-MPA QDs), gold nanorods (Au NRs), silver nanoparticles with pyramidal geometry (Ag NPs), and their mixtures. The spectral properties were studied using a USB2000+ with a PMC-100-20 photomultiplier system (Becker & Hickl Germany). The article considers the transformation of the luminescence spectra of colloidal Ag2S/TGA QDs and Ag2S/2-MPA QDs in mixtures with pyramidal Ag NPs and Au NRs. The study demonstratedthe presence of the effects of the contour transformation of the luminescence spectra due to the Fano effect, as well as the luminescence quenching following direct contact between QDs and NPs

scholarly journals In Vivo Metabolic Response upon Exposure to Gold Nanorod Core/Silver Shell Nanostructures: Modulation of Inflammation and Upregulation of Dopamine

2020 ◽  
Vol 21 (2) ◽  
pp. 384 ◽  
Author(s):  
Haiyun Li ◽  
Tao Wen ◽  
Tao Wang ◽  
Yinglu Ji ◽  
Yaoyi Shen ◽  
...  
Keyword(s):  
Rational Design ◽  
Molecular Mechanisms ◽  
Metabolic Response ◽  
Dopamine Metabolism ◽  
Gold Nanorod ◽  
Ag Nps ◽  
Shell Nanostructures ◽  
Antioxidant Defense Systems ◽  
Silver Shell

With the increasing applications of silver nanoparticles (Ag NPs), the concerns of widespread human exposure as well as subsequent health risks have been continuously growing. The acute and chronic toxicities of Ag NPs in cellular tests and animal tests have been widely investigated. Accumulating evidence shows that Ag NPs can induce inflammation, yet the overall mechanism is incomplete. Herein, using gold nanorod core/silver shell nanostructures (Au@Ag NRs) as a model system, we studied the influence on mice liver and lungs from the viewpoint of metabolism. In agreement with previous studies, Au@Ag NRs’ intravenous exposure caused inflammatory reaction, accompanying with metabolic alterations, including energy metabolism, membrane/choline metabolism, redox metabolism, and purine metabolism, the disturbances of which contribute to inflammation. At the same time, dopamine metabolism in liver was also changed. This is the first time to observe the production of dopamine in non-neural tissue after treatment with Ag NPs. As the upregulation of dopamine resists inflammation, it indicates the activation of antioxidant defense systems against oxidative stress induced by Au@Ag NRs. In the end, our findings deepened the understanding of molecular mechanisms of Ag NPs-induced inflammation and provide assistance in the rational design of their biomedical applications.

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