During agarose gel electrophoresis, plasmid pBR322 the drug-free DNA is negatively supercoiled and migrates through the gel as a single band, but its profile changes significantly in the presence of an intercalating agent
This intercalating agent
proved to be not only more secure in its use, but also much more sensitive than the ethidium bromide, presenting better linear relationship between the amount of PCR products and the fluorescence intensity (6).
Pillarisation and intercalation process of the clay was carried out by mixing bentonite, pillaring agent solution and intercalating agent
(hexadecyltrimethylammonium-bromide; HDTMA-Br) with ratio [gram bentonite/ volume of solution] = 1 gram/50 mL.
Some researchers have studied the corrosion resistance of polystyrene (PS)-clay and poly (styrene-co-acrylonitrile) (PSAN) nanocomposites with quaternary alkyl ammonium salt as an intercalating agent
Single-stranded DNA was immobilized by covalent binding to HEG linkers on fused silica optical fibres, and hybridization was detected using the fluorescent intercalating agent
5 g/L) was used as a typical intercalating agent
with major binding (100%) capability.
They concluded that the intercalating agent
has a significant effect on the intercalation and exfoliation behavior of clay into the resin matrix.
BBR 2778 is Novuspharma's novel intercalating agent
currently in Phase III clinical trials for the treatment of Non Hodgkin's lymphoma.
In this case, the barrier properties improvement merely depends on the diffusion, rather than solubility (Table 4): carvacrol, acting as an intercalating agent
, promotes swelling of the clay platelets, thus increasing the average aspect ratio of the inclusions.
A commercial monoamine, polyoxyalkyle-neamine (Jeffamine[R] M600, Huntsman, Woodlands, TX), was used as an intercalating agent
The choice of the intercalating agent
is first controlled by the nature of the polymer matrix.
While the organically modified clay does lead to better intercalation/exfoliation and dispersion, a high level of organic modifier brings about several disadvantages: (1) it significantly increases the cost of polymer nanocomposites, (2) it gives rise to environmental concerns, (3) it requires different types of intercalating agents
to modify MMT clay for different host polymers, and (4) most importantly, the addition of the intercalating agent
can lead to a significant drop in glass transition temperature ([T.