2C&2D, showed the presence of carboxylic groups
on MWCNTs Graphene surfaces which confirms the drug, Ibuprofen[Carboxylic group].
The effect of functional monomer on the overall conversion, the colloidal properties of the latexes, and the distribution of the carboxylic groups
(buried, particle surface and aqueous phase) were examined.
As the oligomer is usually not soluble in water, a few carboxylic groups
are incorporated into the oligomer chain to make it dispersible in alkaline aqueous solution.
The above discussion led to a conclusion that adduct 7LysP (optimized at the PBE0/6-31G(d,p) level of theory) involving azole 7 and lysine has the strongest linking due to the interaction between the amino acid carboxylic group
and pyrrolic nitrogen of compound 7.
The possible crosslinking between [Ca.sup.2+] and carboxylic groups
of CMC and carboxylic group
of SA are shown in Figure 3(a) and Figure 3(b), respectively.
Like 1 and 3% of the samples the 5% have no carboxylic group
which means having no amino acid.
The peak at 1715 [cm.sup.-1] for the A/20/10 sample and 1705 [cm.sup.-1] for the A/20/5 sample corresponds to C=0 stretching vibration of the carboxylic group
from PMAA .
Similarly, the ionized carboxylic group
shows absorption bands due to asymmetric and symmetric carboxylate (COO-) stretches around 1580 and 1410 cm-1, respectively.
According to these authors, the most expected reaction between acrylic acid and urea is the formation of a salt as the result of the interaction between the carboxylic group
of AA with the amino group of urea.
These findings indicated that the inhibitory activity against HCV protease for these compounds would be reinforced by the increasing of free carboxylic group
in indole structure and weakened by he blockade of the methylene group in AY-carboline structure.
Moreover, more alkyl groups can be grafted on MWCNTs with higher carboxylic group
density, for example, C14-3-CNT (8.37 wt%) versus C14-1-CNT (3.35 wt%).
4b, the increased intensities of the peaks at ~4622 and ~4718 [cm.sup.-1] correspond to C=0 stretch and another peak at ~3434 [cm.sup.-1] is assigned to O--H stretch of carboxylic group
on the surface of BTC-MWCNT (16).