Impact of l-leucine on controlled release of ciprofloxacin through micellar catalyzed channels in aqueous medium

Spectroscopic study of benzothiophene partitioning in sodium dodecyl sulfate and cetyl trimethyl ammonium bromide micellar media

“…A bathochromic shift was observed in the spectrum of BNP/SDS solution, which indicates a strong host-guest relationship between these two species. However, attraction between opposite charges does not allow BNP molecules to penetrate deep [15][16][17][18][19]. Figure 2b shows an increase in the absorbance of BNP with SDS concentration until the CMC is reached.…”

“…A positive charge on the sulphur atom of BNP develops strong electrostatic interactions with the anionic groups on the SDS. The environment around BNP molecules changes with SDS concentration till the CMC, while after the CMC, no change in environment takes place and, thus, no change in absorbance [15][16][17][18][19][20][21][22][23]. Later on, this absorbance leveled off after reaching a certain value due to the maximum incorporation of BNP into the micelles [9][10][11][12][13][14].…”

“…3 [16][17][18][19]. 3, C a and C s indicate the concentration of additive and surfactant, respectively.…”

“…It might have gone relatively deeper in the palisade layer with less available space and, therefore, displayed a lower partition coefficient[15][16][17][18][19][20][21][22][23][24][25]. This interaction causes it first to be adsorbed on the surface, as shown in Scheme 4a, and then it is accommodated inside the micelle as evident from 4(b).…”

Crystal Violet Partitioning in Anionic Surfactants Micellar Media: UV-Visible Spectroscopy Study

“…The general picture emerging from these studies is that the peculiar behavior in both absorption spectra and conductivity measurement of dyes [8][9][10] in the presence of surfactants of opposite charge could be attributed to the formation of a continuum of dye surfactant aggregates [8][9][10]. Various techniques, such as spectrophotometry [11][12][13][14], membrane selective electrode [15], polarography [16], potentiometry [17] and conductometry [18,19] have been used to study the equilibria between surfactant and dye so as to provide information on industrial application like solubilization and on how surfactant assist in fastening of dye in textile industry [20].…”