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Showing 1 to 20 of 25 for “"Nanoparticles - gold"”.
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Tissue-equivalent and nanoparticle doped resin dosimeters
… dye (leucomalaquite green). The introduction of nanoparticles into the fabrication process was also explored. The spatial resolution of the RDs was also of special interest. <br/><br/>It was proven experimentally that these RDs are tissue equivalent. Two reading methods were found depending on …
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Solvent filtration through the use of monolayer-protected gold nanoparticles
… through the use of mixed monolayer ligand coated nanoparticles. Gold nanoparticles were synthesized and coated with octane thiol and mercaptoproprionic acid in a 3:1 ratio. Such nanoparticles have been reported to form an interesting grooved surface morphology, and it has been shown that their …
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Control of blood clotting using gold nanorods
… to externally control blood clotting using gold nanoparticles. Gold nanorods (NRs) have unique size and shape-dependent optical properties that can be used for externally controlled release of biomolecules by laser excitation. Femtosecond pulsed laser irradiation at the NR longitudinal …
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Evaluation of the effects of gold nanoparticles (AuNPs) on protein folding in Escherichia coli
Gold nanoparticles have shown promising applications, more especially in the biomedical industry. This has seen major improvements in disease diagnostics, therapeutics, imaging and treatment. All this is owed to the unique physicochemical properties possessed by the AuNPs. More studies continue to …
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Image Processing Methods For Dual-Energy Contrast-Enhanced X-Ray Breast Imaging
… and evaluation of numerous silver based nanoparticles for DE imaging was explored and imaged. Silica-encapsulated silver nanoparticles, gold-silver alloy nanoparticles, an “all-in-one” silver sulfide nanoparticle, and silver telluride nanoparticles were imaged in phantoms and mice using …
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Synthesis and Characterization of immobilized Gold Nanoparticles and Binary Gold Nanoalloys on Cationic Spherical Polyelectrolyte Brushes and their Application as a Catalyst
… cationic SPB could be used for the generation of gold nanoparticles (Chapter 3.3). The synthesized carrier systems were characterized in detail by transmission electron microscopy (TEM), cryo-TEM and disc centrifuge (DCP). The more detail examination of the Au/SPB system by DLS, TEM/cryo-TEM, …
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Self-Assembly of Plasmonic and/or Luminescent Nanostructures.
… useful for improved optical applications. Gold nanoparticles (Au NPs) exhibit important chemical, electronic and optical properties, due to their size, shape, and electronic structures. Au NPs containing no more than 30-40 atoms are only luminescent because they can be regarded as large …
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Generation of metal nanoparticles in spherical polyelectrolyte brushes and their application in heterogeneous catalysis
… as “nanoreactors” for the synthesis of metal nanoparticles (Gold, Platinum and Silver). The catalytic activity of the resulting metal/polymer nanocomposites has been tested by heterogeneous hydrogenation of carbonyl groups. The synthesis of the cationic spherical polyelectrolyte brushes is …
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NEW GO- AND RGO-BASED MORALS AND CARBENE-FUNCTIONALIZED GOLD NANOPARTICLES FOR HETEROGENEOUSLY CATALYZED REDUCTIONS
… of N heterocyclic carbene (NHC)-functionalized gold nanoparticles. Gold nanoparticles (AuNPs) are widely recognized for their unique optical, electronic, and catalytic properties, which have enabled applications ranging from sensing and biomedicine to fine chemical synthesis. However, the …
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Gold nanostars: from catalytic and SERS properties to the development of smartphone-based and portable biosensing approaches for food contaminants
Gold nanoparticles have long been explored and used throughout history for many purposes, from decoration in ancient times to biomedical applications nowadays. Recent progress in the field of nanotechnology has enabled us to better understand these materials and provided necessary technological …
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Harnessing the optical properties of gold nanorods: fluorescence enhancement, biosensing and photothermal therapy
… synthesis, characterization, and application of gold nanomaterials, especially gold nanorods. Due to their small size, ease of functionalization, and uniquely tunable optical properties, gold nanorods have potential application in solar cells, sensing, bioimaging, drug delivery, and cancer …
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Detailed analysis of ligands on gold nanoparticles
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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GLUCOSE ELECTROOXIDATION
… and microbial electrocatalysis; the former (at gold electrodes) applied to glucose sensing and glucose-gluconate fuel cells, the latter for the development of microbial fuel cells (MFCs). The complex oxidation of glucose at the surface of gold electrodes was studied in detail in different …
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Synthesis and alignment of gold nanorods for optical applications
Gold nanorods are of great interest in many areas of science and technology due to their versatility and electro-optical properties. There are simple synthesis methods that allow for shape control and the ability to change the chemistry on the surface of the gold nanorods. One of the interesting …
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Ultrafast and Nonlinear Spectroscopy of Colloidal Nanomaterials
… of molecular dyes on the surface of plasmonic nanoparticles are investigates. SHG is also used to investigate the growth of a silver shell on the surface of gold nanoparticles in real time. Additionally, gold-silver-gold core-shell-shell nanoparticles possess extinction peak wavelengths that …
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Protein mimetic nanoparticles
Gold nanoparticles with amphiphilic surface functionalization have been shown to spontaneously fuse with lipid bilayers through a non-endocytic mechanism that generates minimal membrane perturbation. The membrane translocation capability of these nanoparticles makes them attractive candidates for …
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Interaction of Metal Nanoparticles with Fluorophores and Their Effect on Fluorescence
Metal nanoparticles have recently gained popularity in many research areas due to their nanosize-related properties. Depending on the size of the metal nanoparticle, their mode of interaction with electromagnetic radiation and the outcome of this interaction vary; in turn the effect exerted on a …
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Photochromic Molecular Materials for the Controlled Organization of Nanoparticles
The displacement of polystyrene nanoparticles promoted by bulk azo mass transfer using interferential light illumination will be discussed. For this a variety of different push pull small azo molecules were synthesis and characterized, changing the polarity, hydrophobicity and bulky groups around …
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Visualization, Characterization, and Analysis of Gold Nanoparticles Fate and Transport in Aqueous Porous Media Environment with Advanced Photonics Technique
… its implication to the water environment. Gold nanoparticles (AuNP) were used as a model nanomaterial to investigate the fate and dynamics of nanoparticles in the complex water environment. A column study was performed to examine the fate and transport of gold nanoparticles with two …
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Synthesis and characterization of metallic nanoparticles with photoactivated surface chemistries
During recent decades metallic nanoparticles have been found very interesting due to their unique characteristics which make them suitable for different applications. In this research, for the very first time, we tried to perform selective surface photo activation chemistry on the targeted facets …
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