gold – Page 3 – TechConnect Briefs

Use of Nanoparticles as Therapy for Respiratory Syncytial Virus Inhibition

Vig K., Boyoglu S., Rangari V., Sun L., Singh A., Singh S.R., Pillai S., Singh A., Singh S.R., Alabama State University, US

Respiratory Syncytial Virus is the leading cause of severe respiratory illnesses such as bronchiolitis and pneumonia in young children. RSV is a paramyxovirus with negative-sense genomic RNA that encodes for eleven proteins, two of which, [...]

Potential anti-inflammatory properties of biologically-synthesized nanoparticles of gold or silver

Vercruysse K.P., Harper S.L., Ivory D.M., Whalen M.M., Saili K.S., Tanguay R.L., Tennessee State University, US

Ionic gold (Au) compounds have been used for many years in the treatment of rheumatoid arthritis (aurotherapy). Despite their long history, the basis for their therapeutic properties has never been established definitively. We have observed [...]

Optimizing nanoparticle functionalization for quantum dot formation

Hooper J.B., Bedrov D., Smith G.D., Kim H., University of Utah, US

Utilizing state-of-the-art molecular dynamics simulation techniques, we have developed a methodology for determining the gross functionalization parameters required to promote formation of small, compact, and stable nanoparticle clusters in aqueous solutions. The ultimate goal of [...]

Development of Nanoparticle-Based Gold Contrast Agent for Photoacoustic Tomography

Yang Y.-S., Vaithilingam S., Ma H.T.-J., Khuri-Yakub B.T., Guccione S., Stanford University, US

Photoacoustic tomography (PAT) utilizes non-ionizing energy to obtain structural/functional information with high spatial resolution and sensitivity. Heterogeneous absorption of optical energy in biological tissues results in differentially expressed acoustic signals yielding spatial/temporal information. A critically [...]

A comparison of boron hydride- and hydrocarbon-based thiol derivatives assembled on gold surfaces

Base T., Bastl Z., Academy of Sciences of the Czech Republic, CZ

Carbon and boron atoms form extensive series of compounds with hydrogen, hydrocarbons and boron hydrides. This contribution deals with the selected thiol derivatives from both groups of compounds. The mutual comparison of these thiol species [...]

Structure and Electronic Properties of “DNA-Gold-Nanotube” Systems: A Quantum Chemical Analysis

Pannopard P., Sirijaraensre J., Nokbin S., Khongpracha P., Limtrakul J., Kasetsart University, TH

The idea of chemical sensing based on molecular recognition is known as one of the most promising concepts for single-molecule detection, even though it still remains in an early developmental stage. The approach requires probes [...]

Labeling of Cells with Silver and Gold Host-Guest Nanocomposites

Balogh L.P., Lesniak W., Sinani V.A., Bielinska A.U., Sun K., Nair B.M., Waite E., Kariapper M.S.T., Khan M.K., Roswell Park Cancer Institute, US

Nanocomposites combine the properties of nano-sized inorganic guest atoms/molecules with their nanoscopic size polymer host. We have synthesized water-soluble, biocompatible, fluorescent, and stable nanocomposites with regulated surface charge and controlled size for cell labeling studies. [...]

Mimicking Photosynthesis to Make Functional Nanostructures and Nanodevices

Shelnutt J.A., Wang Z., Song Y., Medforth C.J., Pereira E., Sandia National Laboratories, US

Photocatalytic porphyrins are used to reduce metal complexes from aqueous solution and, further, to control the deposition of metals onto porphyrin nanotubes and surfactant assembly templates to produce metal composite nanostructures and nanodevices. For example, [...]

Structure Induced Ion Recognition of Self-Assembled Monolayers on Gold

Jiang Z., Liu S., Gao Z., Institute of Bioengineering and Nanotechnology, SG

The construction and characteristics of self-assembled monolayers(SAMs) anthraquinone-polyether compounds on gold were described. Surprisingly and in contrast to the behavior of the in solution, the SAMs show very high affinity towards alkali metal ions, as [...]

A Novel Synthesis of Co@Au Nanoparticles and Characterization

Ban Z., O'Connor C.J., University of New Orleans, US

A homogeneous non-aqueous solution reactions method has been developed to prepare gold-coated cobalt (Co@Au) nanoparticles. After the sample was washed with 8% HCl, TGA, XRD, TEM, and magnetic measurements SQUID are utilized to characterize the [...]