Polydispersity during the Formation and Growth of the Stöber Silica Particles from Small-Angle X-Ray Scattering Measurements

Boukari, Hacène; Long, Gabrielle G.; Harris, Michael T.

doi:10.1006/jcis.2000.7007

Cited by 66 publications

(45 citation statements)

References 25 publications

(82 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To understand the state of aggregation of the nanofibers, the size distribution from the light scattering data is determined using the maximum entropy (ME) method. [16][17][18] We used the Irena code (http://www. uni.aps.anl.gov/∼ilavsky/irena.html) developed by Ilavsky and Jemian to obtain the maximum-entropy solution.…”

Section: Introductionmentioning

confidence: 99%

How Does Surface Modification Aid in the Dispersion of Carbon Nanofibers?

et al. 2005

View full text Add to dashboard Cite

Small-angle light scattering is used to assess the dispersion behavior of vapor-grown carbon nanofibers suspended in water. These data provide the first insights into the mechanism by which surface treatment promotes dispersion. Both acid-treated and untreated nanofibers exhibit hierarchical morphology consisting of small-scale aggregates (small bundles) that agglomerate to form fractal clusters that eventually precipitate. Although the morphology of the aggregates and agglomerates is nearly independent of surface treatment, their time evolution is quite different. The time evolution of the small-scale bundles is studied by extracting the size distribution from the angle-dependence of the scattered intensity, using the maximum entropy method in conjunction with a simplified tube form factor. The bundles consist of multiple tubes possibly aggregated side-by-side. Acid oxidation has little effect on this bundle morphology. Rather acid treatment inhibits agglomeration of the bundles. The time evolution of agglomeration is followed by fitting the scattering data to a generalized fractal model. Agglomerates appear immediately after cessation of sonication for untreated fibers but only after hours for treated fibers. Eventually, however, both systems precipitate.

show abstract

Section: Introductionmentioning

confidence: 99%

How Does Surface Modification Aid in the Dispersion of Carbon Nanofibers?

et al. 2005

View full text Add to dashboard Cite

show abstract

“…To understand the state of aggregation of the nanofibers, the size distribution from the light scattering data is determined using the maximum entropy (ME) method. (Potton, Daniell et al 1988;Morrison, Corcoran et al 1992;Boukari, Long et al 2000) We used the Irena code (http://www.uni.aps.anl.gov/ ~ilavsky/irena.html) developed by Ilavsky and Jemian to obtain the maximum-entropy solution. (Jemian, Weertman et al 1991;Ilavsky 2004) Fig.…”

Section: Morphology and Dispersion Of Pristine And Modified Carbon Namentioning

confidence: 99%

Morphology and Dispersion of Pristine and Modified Carbon Nanofibers in Water

Zhao¹

2010

Nanofibers

View full text Add to dashboard Cite

“…The actual mechanism of silica particle nucleation and growth has only recently been substantiated satisfactorily (Boukari et al, 1997(Boukari et al, , 2000Pontoni et al, 2002) where the technique of small-angle X-ray scattering (SAXS) has been the common tool in these studies. As a result of this research there is overwhelming evidence to support the nucleation and growth mechanism as opposed to the ªburstº of nucleation model proposed by Gulari (1989, 1991).…”

Section: Synthetic and Mechanistic Aspects Of Colloidal Silica Particmentioning

confidence: 99%

Colloids for Encoding Chemical Libraries: Applications in Biological Screening

Battersby

Grøndahl

Lawrie

et al. 2003

Colloids and Colloid Assemblies

View full text Add to dashboard Cite

Screening with MicroarraysMicroarrays are sophisticated tools for applications such as gene expression monitoring of known and unknown genes, genotyping of eukaryotes, micro-organisms and viruses, mutation detection and analysis, antibody-based assays for protein and small molecule analytes (e.g. glycoprotein hormones, steroid hormones, allergen antibodies). Production of microarray devices has become well defined and automated and they are generally created in two formats. In Format I, an array of 17.2 Current High-throughput Screening Technologies 511 1

show abstract

Polydispersity during the Formation and Growth of the Stöber Silica Particles from Small-Angle X-Ray Scattering Measurements

Cited by 66 publications

References 25 publications

How Does Surface Modification Aid in the Dispersion of Carbon Nanofibers?

How Does Surface Modification Aid in the Dispersion of Carbon Nanofibers?

Morphology and Dispersion of Pristine and Modified Carbon Nanofibers in Water

Colloids for Encoding Chemical Libraries: Applications in Biological Screening

Contact Info

Product

Resources

About