Size-dependent emission of negative ions from gold nanoparticles bombarded with C60 and Au400

2013 ◽  
Vol 334 ◽  
pp. 43-48 ◽  
Author(s):  
Chao-Kai Liang ◽  
Stanislav V. Verkhoturov ◽  
Li-Jung Chen ◽  
Emile A. Schweikert
Keyword(s):  
Gold Nanoparticles ◽  
Negative Ions ◽  
Size Dependent

Size-Dependent Electron–Phonon Coupling in Monocrystalline Gold Nanoparticles

ACS Photonics ◽  
2021 ◽  
Author(s):  
Yannic U. Staechelin ◽  
Dominik Hoeing ◽  
Florian Schulz ◽  
Holger Lange
Keyword(s):  
Gold Nanoparticles ◽  
Phonon Coupling ◽  
Size Dependent ◽  
Electron Phonon Coupling

Gold Nanoparticles Induce Autophagosome Accumulation through Size-Dependent Nanoparticle Uptake and Lysosome Impairment

ACS Nano ◽  
2011 ◽  
Vol 5 (11) ◽  
pp. 8629-8639 ◽  
Author(s):  
Xiaowei Ma ◽  
Yanyang Wu ◽  
Shubin Jin ◽  
Yuan Tian ◽  
Xiaoning Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Nanoparticle Uptake ◽  
Size Dependent

scholarly journals Size matters: Size Dependency of Gold Nanoparticles Interacting with Model Membranes

2019 ◽  
Author(s):  
Claudia Contini ◽  
James W. Hindley ◽  
Tom Macdonald ◽  
Joseph Barritt ◽  
Oscar Ces ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Lipid Bilayers ◽  
Lipid Membrane ◽  
Rapid Development ◽  
Membrane System ◽  
Size Dependent ◽  
Research Fields ◽  
Large Unilamellar Vesicles ◽  
Wide Range ◽  
Experimental Characterisation

<p><b>The rapid development of nanomaterials has led to an increase in the number and variety of engineered nanomaterials (ENMs) in the environment. Gold nanoparticles (AuNPs) are an example of a commonly studied ENM whose highly tailorable properties have generated significant interest through a wide range of research fields. In the present work, we report the first qualitative as well as quantitative experimental characterisation of the AuNP-membrane interaction. We investigate the interactions between citrate-stabilised AuNPs (diameters 5, 10, 25, 35, 50, 60 nm) and large unilamellar vesicles (LUVs) acting as a model membrane system. LUVs were prepared in two different formulations using 1-palmitoyl-2-oleoyl-glycero-3-phosphocholine (POPC) and 1,2-dileoyl-sn-glycero-3-phosphocholine (DOPC). Our results show that the interaction between AuNPs and LUVs is size dependent; in particular, we reveal the existence of two AuNP’s critical diameters which determine the fate of AuNPs in contact with a lipid membrane. The results provide a new understanding of the size dependent interaction between AuNPs and lipid bilayers of direct relevance to nanotoxicology and to the design of NP vectors.</b></p>

scholarly journals Size-Dependent Toxicity of Gold Nanoparticles on Human Embryonic Stem Cells and Their Neural Derivatives

Small ◽  
2015 ◽  
Vol 12 (5) ◽  
pp. 631-646 ◽  
Author(s):  
Marie-Claude Senut ◽  
Yanhua Zhang ◽  
Fangchao Liu ◽  
Arko Sen ◽  
Douglas M. Ruden ◽  
...  
Keyword(s):  
Stem Cells ◽  
Gold Nanoparticles ◽  
Embryonic Stem Cells ◽  
Human Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Size Dependent

Origin of Size-Dependent Energy Transfer from Photoexcited CdSe Quantum Dots to Gold Nanoparticles

2008 ◽  
Vol 112 (17) ◽  
pp. 6695-6699 ◽  
Author(s):  
Mariana Kondon ◽  
Junhyung Kim ◽  
Nayane Udawatte ◽  
Dongil Lee
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Energy Transfer ◽  
Cdse Quantum Dots ◽  
Size Dependent

Functionalization of Gold Nanoparticles with Monosaccharide Mannose

2021 ◽  
pp. 6281-6284
Author(s):  
Sambit Dash ◽  
Pragna Rao ◽  
Ullas Kamath ◽  
Aparna R Pai ◽  
Prasanna Kumar Reddy Gayam ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Phase Transfer ◽  
Colour Change ◽  
Cost Effective ◽  
Biomedical Sciences ◽  
Size Dependent ◽  
Nanoparticles Dispersion ◽  
Wide Range ◽  
Three Stages ◽  
Transfer Method

Gold nanoparticles have found a wide range of application in biomedical sciences. Unique properties of these metal nanoparticles include surface plasmon resonance and size dependent colour change. Various molecules have been functionalized on the gold nanoparticles surface but carbohydrates have garnered attention due to their properties and their role in living systems. However certain challenges make carbohydrate-gold nanoparticles association difficult to obtain and stabilize. This study was carried out to chemically remodel gold nanoparticles by adding a monosaccharide mannose to its surface. A modified phase transfer method was used to synthesize gold nanoparticles. The surface of the nanoparticles was fixed with cyanuric chloride to serve as a linker. Mannose was then linked to the linker molecule. All three stages of the process, gold nanoparticles, and gold nanoparticles with linker and gold nanoparticles with the carbohydrate were analyzed for size and stability. Zeta potential and UV-vis data exhibited stable gold nanoparticles dispersion, successful binding of linker molecule as well as the carbohydrate. This study shows a simple, cost-effective and robust method of glycomodification of gold nanoparticles surface which can further find use in wide ranging applications.

Size dependent targeted delivery of gold nanoparticles modified with the IL-6R-specific aptamer AIR-3A to IL-6R-carrying cells

Nanoscale ◽  
2017 ◽  
Vol 9 (38) ◽  
pp. 14486-14498 ◽  
Author(s):  
Lisa Prisner ◽  
Nadine Bohn ◽  
Ulrich Hahn ◽  
Alf Mews
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Targeted Delivery ◽  
Receptor Ligand ◽  
Size Dependent ◽  
Au Clusters

The receptor–ligand mediated AuNP delivery to cells is strongly dependent on the particle size, as investigated by comparing very small “molecular” Au clusters of only 2 nm with larger 7 nm AuNPs and 36 nm AuNPs with a distinct surface plasmon resonance.

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