gold nanoparticle – Page 2 – TechConnect Briefs

Thin film-resistive gas sensor with SnO2/Au nanocomposite for hydrogen sulfide detection

Chang B-W, Ding S-J, Chen R.L.C., Hungkuang University, TW

A highly sensitive and selective H2S gas sensor has been developed by deposited a SnO2 thin film on an alumina substrate with a spin-coated method. This SnO2 sensing film was be made by a sol-gel [...]

Fabrication of ITO/Gold nanoparticle/RGD peptide Composites to Enhance Electrochemical Signals from Human Neural Stem Cells

Kim T-H., Choi J.W., Sogang University, KR

Gold nanoparticles (GNP) and RGD peptide modified indium tin oxide (ITO) electrode was fabricated to enhance the electrochemical signals from neural stem cells (HB1.F3). ITO film is well-known transparent and conductive material suitable for both [...]

A DNA sensor using gold-coated barcode silica nanotubes

Kim S.Y., Jun S.J., Min J., Kyungwon University, KR

A DNA senor using silica nanotubes (SNTs) was developed to detect some bacteria by barcoded SNTs. The SNTs were fabricated using anodic aluminum oxide (AAO) templates by the surface sol-gel method. To recognize each DNA [...]

Nanoscale Force Induced Size-selective Separation and Self-assembly of Metal Nanoparticles

Zheng Y., Monash University, AU

A simple and versatile nanoscale force induced precipitation approach for the separation of gold nanoparticles (AuNPs) was developed. The AuNPs show sharp size-dependent colloidal stability thresholds as a function of salt concentration. Upon separation, the [...]

Plasmonic Nanobubbles: tunable and transient probes for cancer diagnosis, therapy and theranostics

Lukianova-Hleb E., Drezek R., Hafner J., Lapotko D., Rice University, US

We report a tunable theranostic probe that can support the diagnosis, therapy and therapy guidance in one process in individual cancer cells. This probe is a plasmonic nanobubble (PNB), which is not a particle but [...]

Zebrafish as a universal in vivo model for plasmonic nanoparticle medicine

Lukianova-Hleb E., Santiago C., Wagner D., Hafner J., Lapotko D., Rice University, US

In vivo application of plasmonic methods faces serious challenges because standard animal models are not well suited for optical activation and detection of plasmonic effects and for precise control the distribution and interactions of the [...]

Combining gene therapy and nanomedicine to enhance the therapeutic potential of T cells

Choi Y., Torikai H., Lee D.A., Lee D.Y., Li K.C., Li Z., Lo D., Qin G., Tung C.H., Tasciotti E., Raphael R., Biswal S.L., Ang S., Lee D.A., Lee D.Y., Li K.C., Li Z., Cooper L.J.N., M.D. Anderson Cancer Center, US

we have developed a high throughput electroporator (HiTE) to manipulate large numbers (~10^9) of T cells ex vivo for clinical uses. HiTE is designed to electro-transfer RNA species to redirect T-cell specificity and gold nanoparticles [...]

A Study of Inorganic-Polymer Hybrid Films for Various Surface Functionalization

Park B-S., Lui Z., Jin H.S., Yang S.-Y., Chungnam National University, KR

The PEM coatings were applied on magnetic particles and the deposited films were examined by zeta-potential analysis and fluorescence microscope. Additionally, we utilized layer-by-layer deposition method to modify the surface of the micro-channel of the [...]

Gold nanoparticle-based miniaturized NSET Probe for rapid and ultra-sensitive detection of toxic metals in soil, water and fish

Ray A., Ray P.C., Darbha G.K., Ray A., Ray P.C., Jackson State University, US

Contamination of the environment with toxic metals like mercury and arsenic have been an important concern throughout the world for decades. Human exposure to high Hg or As levels can harm the brain, heart, kidneys, [...]

Gold Nanoparticle Bioconjugates for Biomolecular Imaging and Detection

Liu X., Dai Q., Coutts J., Austin L., Knowles G., Huo Q., University of Central Florida, US

Gold nanoparticles and colloids have been used for a long time in biomolecular imaging and detection. With further understanding on many of the electrical and optical properties of gold nanoparticles revealed recently, the application of [...]