Gold nanoparticles (AuNPs) are strong candidates as building blocks for self-assembly, with their optical and electronic properties associated with applications ranging from medical therapeutics and diagnostics to opticaldevices. The colloidal syntheses of AuNPs with desired size and shape have been ...
Physical Properties: Organe, Red Or Purple In Aqueous Solution; Concentration: 0.05% (w/v) Based On Gold; 纳米金修饰性PEG Gold Nanoparticles
This phenomenon is also seen when excess salt is added to the gold solution. The surface charge of the gold nanoparticle becomes neutral, causing nanoparticles to aggregate. As a result, the solution color changes from red to blue. To minimize aggregation, the versatile surface chemistry of gold...
0.05 mg/mL in aqueous 2 mM sodium citrate Hydrodynamic diameter (DLS):TEM diameter plus 2 to 12 nm Zeta potential:–15 to –60 mV pH of solution:7.0 to 8.5 Particle surface:sodium citrate Solvent:Milli-Q water Peak wavelength (λmax):515 to 560 nm ...
2.3 Gold Nanoparticles Gold nanoparticles have been extensively studied over the last decade in numerous therapeutic applications. By definition gold nanoparticles are composed of nanosized colloidal gold particle suspended in water or other liquids that exhibit optical, electronic, and molecular recognition...
Spherical gold nanoparticles, in particular, exhibit a wide range of colors (purple, red, orange, and brown) in an aqueous solution. They usually show asize-depended absorption peakfrom 490 to 560 nm. Plus, they possess several useful qualities such as low toxicity, excellent biocompatibility, ...
Host-Guest Interactions: Pillararenes on the gold nanoparticle surface can selectively bind guest molecules, allowing for applications in molecular recognition, sensing, and separation. Stability and Biocompatibility: The presence of pillararenes enhances the stability of gold nanoparticles in solution and ...
Gold nanoparticles as solution support in catalysis.Sommer, William JCrne, MatijaWeck, Marcus
Silicate glasses with metallic nanoparticles (NPs) have been of intense interest in art, science and technology as the plasmonic properties of these NPs equip glass with light modulation capability. The so-called striking technique has enabled precise control of the in situ formation of metallic NPs...
(b) Photoluminescence and excitation spectra of fluorescent gold nanoclusters prepared by etching gold nanoparticles with HAuCl4 and using DHLA as the surfactant. The inset shows a picture of the nanocluster solution under UV illumination.Reprinted with permission from (a) J. Phys. Chem. C (Ref....