Network aggregated

Boal AK, Ilhan F, DeRouchey JE, Thum-Albrecht T, Russell TP, RoteUo VM. Self-assembly of nanoparticles into structured spherical and network aggregates. Nature 2000 404 746-748. 

The energy deposited and the resulting forces usually expose their effects at any level in the hierarchy of food structure, i.e., from the molecular level to the formation of phases, networks, aggregates, cells, and finally, the food products themselves. 

In the case of the PS-DV6 networks, aggregates of from about 1 to 34 D-PS molecules were formed with radii of gyration ranging upwards to 350 to 400A. The Schelten correlation network model seems to fit the present data better than other models at this time. 

LC physical gels containing random network aggregates of gelators, which are formed through Type I phase behavior, are suitable for the fight scattering materials as shown in Fig. 8. This is because small amounts of nanofibers... 

Cyclodextrin host-guest Aime et al. -l-l- Self-assembly (network/aggregate) Perez et al. ... 

Nguyen, T., Pellegrin, B., Mermet, L., et al. Network aggregation of CNTs at the surface of epoxy/MWCNT composite exposed to UV radiation. NSTl-Nanotech 1 90-93 (2009). ISBN 978-l-4398-1782-7... 

Supramolecular organic/inorganic hybrids have been produced using gold nanoparhcles and [60]fullerene [109]. Kaifer and coworkers prepared y-cyclodextrin-capped gold nanoparhcles (3.2 nm diameter), which combined to form water-soluble network aggregates with a diameter of approximately 300 nm in the presence of [60]fullerene. In the particles, complexation of y-cyclodextrins and [60]... 

Meakin P 1983 Formation of fractal clusters and networks by irreversible diffusion-limited aggregation Phys. Rev. Lett. 51 1119-22... 

Dispersion of a soHd or Hquid in a Hquid affects the viscosity. In many cases Newtonian flow behavior is transformed into non-Newtonian flow behavior. Shear thinning results from the abiHty of the soHd particles or Hquid droplets to come together to form network stmctures when at rest or under low shear. With increasing shear the interlinked stmcture gradually breaks down, and the resistance to flow decreases. The viscosity of a dispersed system depends on hydrodynamic interactions between particles or droplets and the Hquid, particle—particle interactions (bumping), and interparticle attractions that promote the formation of aggregates, floes, and networks. 

If the dispersion particles are attracted to each other, they tend to flocculate and form a stmcture. At low concentrations the particles form open aggregates, which give a fractal stmcture (93,94). At higher concentrations a network stmcture results, which can be so pronounced that the mixture has a yield point and behaves like a soHd when at rest. Shearing breaks up this stmcture, and viscosity decreases. 

Fig. 10. Polymerization behavior of silica. In basic solution (B), particles grow in size and decrease in number in acidic solution or in the presence of flocculating salts (A), particles aggregate into three-dimensional networks and form gels (1).

Gels are viscoelastic bodies that have intercoimected pores of submicrometric dimensions. A gel typically consists of at least two phases, a soHd network that entraps a Hquid phase. The term gel embraces numerous combinations of substances, which can be classified into the following categories (2) (/) weU-ordered lamellar stmctures (2) covalent polymeric networks that are completely disordered (2) polymer networks formed through physical aggregation that are predominantly disordered and (4) particular disordered stmctures. 

In a particle having a bidispersed pore structure comprising spherical adsorptive subparticles of radius forming a macroporous aggregate, separate flux equations can be written for the macroporous network in terms of Eq. (16-64) and for the subparticles themselves in terms of Eq. (16-70) if solid diffusion occurs. 

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