Browsing Waterloo Research by Subject "Gold nanoparticles"
Now showing items 1-10 of 10
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Assembly of DNA-Functionalized Gold Nanoparticles with Gaps and Overhangs in Linker DNA
(American Chemical Society, 2011-04-28)DNA-directed assembly of gold nanoparticles (AuNPs) has been extensively studied because of its important applications in analytical chemistry, materials science, and nanomedicine. In a typical system, two DNA-functionalized ... -
Characterization of glucose oxidation by gold nanoparticles using nanoceria
(Elsevier, 2014-04-30)Gold nanoparticles (AuNPs) can oxidize glucose, producing hydrogen peroxide and gluconic acid, which are the same products as those generated by glucose oxidase (GOx). In this regard, AuNPs are a nanozyme. Herein, a new ... -
Dissociation and Degradation of Thiol-Modified DNA on Gold Nanoparticles in Aqueous and Organic Solvents
(American Chemical Society, 2011-05-17)Gold nanoparticles functionalized with thiol-modified DNA have been widely used in making various nanostructures, colorimetric biosensors, and drug delivery vehicles. Over the past 15 years, significant progress has been ... -
DNA-Functionalized Gold Nanoparticles in Macromolecularly Crowded Polymer Solutions
(American Chemical Society, 2012-11-15)DNA-functionalized gold nanoparticles (AuNPs) are one of the most commonly used reagents in nanobiotechnology. They are important not only for practical applications in analytical chemistry and drug delivery, but also for ... -
Effects of Polyethylene Glycol on DNA Adsorption and Hybridization on Gold Nanoparticles and Graphene Oxide
(American Chemical Society, 2012-10-09)Understanding the interface between DNA and nanomaterials is crucial for rational design and optimization of biosensors and drug delivery systems. For detection and delivery into cells, where high concentrations of cellular ... -
Instantaneous Attachment of an Ultrahigh Density of Nonthiolated DNA to Gold Nanoparticles and Its Applications
(American Chemical Society, 2012-12-11)The last 16 years have witnessed the landmark development of polyvalent thiolated DNA-functionalized gold nanoparticles (AuNP's) possessing striking properties within the emerging field of nanobiotechnology. Many novel ... -
Magnetic nano-nets for capture of microbes in solution based on physical contact
(Elsevier, 2019-02-01)Self-assembly of Au nanoparticles with Fe ions is used to develop magnetic nano-nets similar to fishing nets for capture and removal of microbes in aqueous medium. The nano-nets have a high aspect ratio, span microns in ... -
Protection and Promotion of UV Radiation-Induced Liposome Leakage via DNA-Directed Assembly with Gold Nanoparticles
(Wiley, 2011-07-26)DNA-functionalized gold nanoparticles and liposomes are assembled by a linker DNA. The gold nanoparticles can either protect the liposome from UV radiation induced leakage or can promote the leakage, depending on the DNA ... -
Stimuli-responsive releasing of gold nanoparticles and liposomes from aptamer-functionalized hydrogels
(Institute of Physics, 2011-11-21)Controlled release of therapeutic agents is important for improving drug efficacy and reducing toxicity. Recently, hydrogels have been used for controlled release applications. While the majority of the previous work focused ... -
Towards point-of-care detection of polymicrobial infections: Rapid colorimetric response using a portable spectrophotometer
(Elsevier, 2016-09)Infectious diseases spread rapidly because current diagnostic methods are slow, expensive, and require technical expertise. Biosensors have recently been used as devices that can be deployed at the point-of-care for rapid ...