Spectroscopic analysis of naphtholazobenzimidazole in organised solution

Shah, Syed Waqar Hussain; Naeem, Kashif; Naseem, Bushra; Hasan, Mohammad Al; Shah, Syed Sakhawat

doi:10.1080/00319100902839137

Cited by 4 publications

(3 citation statements)

References 49 publications

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“…The change in CMC caused by an additive can be utilized for determination of partition coefficient of solute [6,7]. Our previous work includes the investigation of surfactant-dye aggregates by conductometry and spectroscopic analysis [8][9][10][11]. The present study describes the interaction of 1-alkanol with SDBS, relatively less focused area of the widely studied surfactant-alkanol interaction [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

<b>Investigation of 1-alkanols in organised solutions</b>

Shah¹,

Naseem²,

Rehman³

et al. 2011

Bull. Chem. Soc. Eth.

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Conductometric behaviour of 1-alkanols (C5-C10) in organised solutions of sodium dodecylbenzenesulfonate (SDBS) is investigated. Interaction of each alkanol with anionic surfactant is reflected in terms of association constants, Kc. It is observed that self-assembly of SDBS is induced by the alkanol addition. The depression in critical micelle concentration (CMC) of SDBS caused by each alkanol is translated to partition coefficient, Kc by using interaction coefficient. The dimensionless partition coefficient, Kx is utilized to highlight the energy efficiency of the solubilization process. The results indicate that even longer chain alkanols prefer interfacial area for their residence. The relative solubility of each alkanol is enhanced with increasing SDBS concentration. Such basic information could be vital for development of nano-scale assemblies for specific delivery of water soluble drugs.

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Section: Introductionmentioning

confidence: 99%

<b>Investigation of 1-alkanols in organised solutions</b>

Shah¹,

Naseem²,

Rehman³

et al. 2011

Bull. Chem. Soc. Eth.

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“…A number of studies have been focused on to dye/conventional surfactant interaction which are important in understanding the chemical equilibria, mechanisms and kinetics of surfactant-sensitized color and/or fluorescence reactions [12][13][14] . The nature of interactions involved in aqueous ionic dyes and oppositely charged ionic surfactants have been reported previously 7,15,16 .…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric and Conductometric Studies on the Interaction of Anionic Dye Eosin-Y with Cationic Micelles

Erdinç¹,

Göktürk²

2014

Analytical Chemistry Letters

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In this paper, spectrophotometric and conductometric methods were used to study the interaction phenomenon between oppositely charged anionic Eosin-Y and cationic surfactants; dodecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, cetyltrimethylammonium bromide, cetylpyridinium bromide and cetylpyridinium chloride. Conductivity measurements of surfactants were performed and the degree of micellar ionization was determined in the absence and presence of Eosin-Y. The ionization degree and counterion binding parameter obtained from conductivity data are used to evaluate the interaction mechanism of Eosin-Y in wide range of different hydrophobic cationic microenvironments as well. The absorption spectra were used to quantify the binding constants by means of Benesi-Hildebrand equation. Comparison of the binding degree of Eosin-Y to micelles indicates a direct correlation between binding constant and hydrophobicity. The micellar properties of cationic surfactants at levels below and above their CMCs in aqueous and in the presence of Eosin-Y were also studied using conductivity and spectrophotometry. It was observed that the CMC values of cationic surfactants decreased in the presence of Eosin-Y. The spectrophotometric behavior of Eosin-Y in water-EOH mixture of varying composition was also monitored in order to gain more information about the localization of Eosin-Y in cationic micelles.

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“…This experimental model is useful for studying the interaction of biolo-gical surfaces with the additive molecule. [13][14][15] In the current study, short chain phenylalkanoic acids in aqueous solution of anionic sodium dodecyl sulfate (SDS) and cationic cetyltrimethylammonium bromide (CTAB) surfactants were investigated. These compounds act as agonists for hPPARs (human peroxisome proliferator activated receptors), in particular the human PPARα isoform, and are effective in the treatment of abnormal lipid metabolism, diabetes and other disorders.…”

Section: Introductionmentioning

confidence: 99%

Interactions of short chain phenylalkanoic acids within ionic surfactant micelles in aqueous media

Naeem

Shah

Naseem

2012

JSCS

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% SDS KR nema Solubilization and interactions of phenylalkanoic acids induced by cationic surfactant, cetyltrimethylammonium bromide (CTAB) and an anionic surfactant, sodium dodecyl sulfate (SDS) was investigated spectrophotometrically at 25.0°C. The UV spectra of the additives (acids) were measured with and without surfactant above and below critical micelle concentration (cmc) of the surfactant. The presence of alkyl chain in phenylalkanoic acids is responsible for hydrophobic interaction resulting in shift of the spectra towards longer wavelength (red shift). The value of partition coefficient (Kx) between the bulk water and surfactant micelles and in turn standard free energy change of solubilization (ΔGpº) were also estimated by measuring the differential absorbance (ΔA) of the additives in micellar solutions

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Spectroscopic analysis of naphtholazobenzimidazole in organised solution

Cited by 4 publications

References 49 publications

<b>Investigation of 1-alkanols in organised solutions</b>

<b>Investigation of 1-alkanols in organised solutions</b>

Spectrophotometric and Conductometric Studies on the Interaction of Anionic Dye Eosin-Y with Cationic Micelles

Interactions of short chain phenylalkanoic acids within ionic surfactant micelles in aqueous media

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