Aggregation, gold nanoparticle

Imura, K., Okamoto, H., Hossain, M. K. andKitajima, M. (2006) Near-field imaging of surface-enhanced Raman active sites in aggregated gold nanoparticles. Chem. Lett., 35, 78-79. 

A different approach to DNAzyme sensors relies on the visual properties of aggregated gold nanoparticles [62-64]. The substrate for the DNAzyme is designed so that... 

Sensing of reactive oxygen species by self-aggregating gold nanoparticle assemblies... 

Yasmin, Z., Khachatryan, E., Lee, Y.-H., Maswadi, S., Glickman, R., Nash, Ki., 2015. In vitro monitoring of oxidative processes with self-aggregating gold nanoparticles using all-optical photoacoustic spectroscopy. Biosens. Bioelectron. 64, 676—682. 

Fig. 4.17 (a,b) Calculated optical field distributions near a dimer of spherical gold nanoparticles (diameter 100 nm). Arrows indicate the incident polarization, (c) Topography of single and aggregated gold nanoparticles, (d) Two-photon excitation image of the sample (c) taken with incident polarization indicated by the arrow. Scale bars 1(X) nm... 

Pig. 4.18 (a) Topography of single and aggregated gold nanoparticles, (b) Near-field Raman spectra taken at dimer 1 and the isolated particle indicated in (a). Excitation wavelength is 785 nm. (c) Polarized near-field Raman excitation images of the dimer 1 and dimer 2. Arrows indicate the incident polarization. Solid curves approximate shape of the dimer... 

Youk J.H., Park M.K., Locklin J., Advincula R., Yang J., and Mays J. Preparation of aggregation stable gold nanoparticles using star-block copolymers, Langmuir, 18, 2455, 2002. 

The preparation and study of metal nanoparticles constitutes an important area of current research. Such materials display fascinating chemical and physical properties due to their size [62, 63]. In order to prevent aggregation, metal nanoparticles are often synthesized in the presence of ligands, functionalized polymers and surfactants. In this regard, much effort has focused on the properties of nanoparticles dispersed into LCs. In contrast, the number of nanoparticles reported that display liquid crystal behavior themselves is low. Most of them are based on alkanethiolate stabilized gold nanoparticles. 

Sato, K., Hosokawa, K. and Maeda, M. (2003) Rapid aggregation of gold nanoparticles induced by noncrosslinking DNA hybridization. Journal of the American Chemical Society, 125, 8102-8103. 

N.T.K. Thanh and Z. Rosenzweig, Development of an aggregation-based immunoassay for anti-protein A using gold nanoparticles. Anal. Chem. 74, 1624-1628 (2002). 

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