gold nanoparticles – TechConnect Briefs

Enhancement of Effects of Chitosan and Nanoparticles on Pancreatic Cancer Cells by Combination Treatments with the Anti-Cancer Drug Adriamycin

Lai J.C.K., Gao W., Bhushan A., Leung S., Idaho State University College of Pharmacy, US

Because of chitosan’s roles in biomedical applications, this study investigated the effects of chitosan, chitosan in combination with silver or gold nanoparticles, and chitosan with nanoparticles and Adriamycin, Methotrexate or Cisplatin on human PANC-1 pancreatic [...]

Discriminated properties of PEI functionalized gold nanoparticles (Au-PEIs) predetermined by synthetic routes of ligand exchange and reduction processes: Paths and Fates

Cho T.J., Gorham J.M., Pettibone J.M., Hackley V.A., National Institute of Standards and Technology, US

Polyethyleneimine (PEI) functionalized AuNPs (Au-PEIs) have potential use as positively charged gold nanoparticles (AuNPs) for nano-medicinal applications, due to their cationic surfaces that promote cellular uptake and gene transfection.1-6 Au-PEIs can be prepared by one [...]

Enhancement of optical properties of Perovskite solar cells through added plasmonic nanostructures

Shehata N., Badran H., Kandas I., Hajjiah A., Kuwait College of Science and Technology, KW

Hybrid organic-inorganic perovskites have been extensively studied as a promising research topic in solar energy harvesting, due to their simple process, developed optical and electrical properties, and relatively low-cost materials. However, the perovskite solar cells [...]

Evaporation of Gold Nanofluid Sessile Drops on Heated Substrate

Zaaroura I., Harmand S., Carlier J., Boukherroub R., Université Polytechnique Hauts-de-France (UPHF), FR

In this paper, experiments investigating the evaporation of gold nanofluid droplets to evaluate the effect of the particle size (5 and 10 nm) and concentrations (1 and 4% Cv), were executed on a hydrophobic silicon [...]

Dendrigraft Poly-L-lysine (d-PLL) Coated Gold Nanoparticles in Water for siRNA Delivery to Prostate Cancer Cells

Rahme K., Minassian G., Ghanem E., Souaid E., Guo J., O’Driscoll C.M., Holmes J.D., Notre Dame University (Louaize), LB

In this study we used dendrigraft poly-L-lysine (d-PLL) as a stabilising ligand for gold nanoparticles (AuNPs) in water. The d-PLL generation two (P2) with narrow molecular weight distribution of about 7 KD was obtained by [...]

A Simple Synthesis of Polymer Coated Gold and Silver Nanoparticles in Water for Potential Use in Biomedical Applications

Rahme K., Minassian G., Ghanem E., Sarkis M., Nakhl M., El Hage R., Souaid E., Holmes J.D., Notre Dame University (Louaize), LB

Herein we describe a simple method for the synthesis of highly stable gold (Au) and silver (Ag) nanoparticles (NPs) in water. Ag and Au NPs of different surface charges (positively charged, negatively charged, or nearly [...]

miRNA Expression Analysis in HEp-2 Cells after Gold Nanorod Application

Montgomery A., Bawage S., Chaudhary A., Singh S.R., Vig K., Alabama State University, US

Gold Nanoparticles are popular because of their use in drug delivery and other biomedical applications. However, not much is known about their toxicity. The purpose of the present study was to evaluate the toxicity of [...]

Branched PEI Capped Gold Nanoparticles in Water for siRNA Delivery to Cancer Cells

Rahme K., Guo J., Biswas S., O’Driscoll C.M., Holmes J.D., Notre Dame University (Louaize), LB

Herein we describe a simple method for the synthesis of different sizes of polyethylenimine-capped gold nanoparticles (AuNPs-PEI) in water and assess their potential to deliver siRNA or other therapeutic agents to cancer cells. AuNP-PEI with [...]

A plasma electrochemistry reactor enabling the rapid and continuous-flow synthesis of gold and platinum group metal (PGM) nanoparticles

Fortin M.-A., Bouchard M., Turgeon A., Université Laval, CA

Abstract: Platinum group metals (PGM: Pd, Pt, Ir, Rh, etc) are commonly used in catalysis. Conventional catalysts typically consist of PGM nanoparticles dispersed on high surface area oxide supports.[1] However, high PGM loadings must be [...]

A plasma electrochemistry reactor for the synthesis of radioactive gold nanoparticles

Fortin M.-A., Bouchard M., Laprise-Pelletier M., Turgeon S., Université Laval, CA

Abstract: Gold nanoparticles (Au NPs) are increasingly considered for use as radioactive sources (198Au) for prostate brachytherapy procedures [1]-[2]. The range of the 198Au β-particle (0.96 MeV, ~ 11 mm in soft tissue, ~ 1100 [...]