Small-angle X-ray scattering as an effective tool to understand the structure and rigidity of the reverse micelles with the variation of surfactant

Sunaina, .; Mehta, Surinder Kumar; Ganguli, Ashok K.; Vaidya, Sonalika

doi:10.1016/j.molliq.2021.115302

Cited by 13 publications

(19 citation statements)

References 35 publications

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“…q ) acquired from SAXS analysis, is used to examine the various shapes of the nanomaterials. 25,26,28 I ( q ) = I 0 + q −m …”

Section: Resultsmentioning

confidence: 99%

“…This decrease in scattering causes Porod's law to deviate negatively. 25,26 ln [ q 4 I ( q )] = ln K − σ 2 q 2 …”

Section: Resultsmentioning

confidence: 99%

“…A power-law variation, (I(q) vs. q) acquired from SAXS analysis, is used to examine the various shapes of the nanomaterials. 25,26,28…”

Section: Analysing Saxs Datamentioning

confidence: 99%

“…2,3 As a result, a water channel forms across the surfactant films, allowing the interchange of reactive species. 2,3,25,26 In the hydrophilic domain at nanometre scales, this exchange of reactive components assures that the reacting particles are equally distributed among the water droplets, resulting in the formation of monodispersed nanomaterials with regulated properties. Thereafter, the dimer usually divides into two daughter droplets.…”

Section: Introductionmentioning

confidence: 99%

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Understanding the effect of surfactants’ hydrophobicity on the growth of lanthanum sulfide nanospheres in water-in-oil microemulsions: a detailed dynamic light scattering, small angle X-ray scattering, and microscopy study

et al. 2023

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“…q ) acquired from SAXS analysis, is used to examine the various shapes of the nanomaterials. 25,26,28 I ( q ) = I 0 + q −m …”

Section: Resultsmentioning

confidence: 99%

“…This decrease in scattering causes Porod's law to deviate negatively. 25,26 ln [ q 4 I ( q )] = ln K − σ 2 q 2 …”

Section: Resultsmentioning

confidence: 99%

“…A power-law variation, (I(q) vs. q) acquired from SAXS analysis, is used to examine the various shapes of the nanomaterials. 25,26,28…”

Section: Analysing Saxs Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Understanding the effect of surfactants’ hydrophobicity on the growth of lanthanum sulfide nanospheres in water-in-oil microemulsions: a detailed dynamic light scattering, small angle X-ray scattering, and microscopy study

et al. 2023

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“…Information about the structure of micelles and the intermicellar interaction can be derived from the small-angle scattering data by applying model-independent approaches, such as the Fourier transformation or various approximations on scale–transformed data. A more versatile and more often used approach is the model fitting, either for single-component solutions [ 18 , 19 , 20 , 21 ] or multicomponent systems, such as surfactants with polymers [ 22 ], suspensions of nanoparticles [ 23 , 24 ], or mixtures of proteins with micelles [ 25 ], among others.…”

Section: Introductionmentioning

confidence: 99%

Micelle Formation in Aqueous Solutions of the Cholesterol-Based Detergent Chobimalt Studied by Small-Angle Scattering

et al. 2023

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The structure and interaction parameters of the water-soluble cholesterol-based surfactant, Chobimalt, are investigated by small-angle neutron and X-ray scattering techniques. The obtained data are analyzed by a model-independent approach applying the inverse Fourier transformation procedure as well as considering a model fitting procedure, using a core-shell form factor and hard-sphere structure factor. The analysis reveals the formation of the polydisperse spherical or moderately elongated ellipsoidal shapes of the Chobimalt micelles with the hard sphere interaction in the studied concentration range 0.17–6.88 mM. The aggregation numbers are estimated from the micelle geometry observed by small-angle scattering and are found to be in the range of 200–300. The low pH of the solution does not have a noticeable effect on the structure of the Chobimalt micelles. The critical micelle concentrations of the synthetic surfactant Chobimalt in water and in H2O-HCl solutions were obtained according to fluorescence measurements as ~3 μM and ~2.5 μM, respectively. In-depth knowledge of the basic structural properties of the detergent micelles is necessary for further applications in bioscience and biotechnology.

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Synergistic Role of Model‐Independent and Model‐Dependent Approaches for Determining Size and Shape of Au Nanostructures Using SAXS

Vijay¹,

Kaur²,

Vaidya³

2022

Part & Part Syst Charact

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The main objective of this study is to showcase the use of synergistic utilization of model‐independent and model‐dependent approaches for analyzing small angle X‐ray scattering (SAXS) data to determine the shape and size of different nanostructures viz. spherical, nanorod, and core‐shell. Herein, different gold nanostructures viz. spherical, nanorod, and core‐shell are synthesized and analyzed using SAXS. First, the SAXS data are analyzed using Guinier law, PDDF (pair–distance distribution function) plots, double logarithmic plots, and electron density curves to get primary information about the size and shape of nanostructures. This information is utilized for choosing an appropriate model and initial input parameters for fitting the SAXS data. The observations obtained from SAXS studies are compared with transmission electron microscopy and UV–vis spectroscopy. It is believed that this study will help in understanding the analysis of SAXS data using a systematic and synergistic approach of utilizing the two methods. It is believed that the study will further add to the understanding of the technique as an alternative approach for transmission electron microscopy.

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Small-angle X-ray scattering as an effective tool to understand the structure and rigidity of the reverse micelles with the variation of surfactant

Cited by 13 publications

References 35 publications

Understanding the effect of surfactants’ hydrophobicity on the growth of lanthanum sulfide nanospheres in water-in-oil microemulsions: a detailed dynamic light scattering, small angle X-ray scattering, and microscopy study

Understanding the effect of surfactants’ hydrophobicity on the growth of lanthanum sulfide nanospheres in water-in-oil microemulsions: a detailed dynamic light scattering, small angle X-ray scattering, and microscopy study

Micelle Formation in Aqueous Solutions of the Cholesterol-Based Detergent Chobimalt Studied by Small-Angle Scattering

Synergistic Role of Model‐Independent and Model‐Dependent Approaches for Determining Size and Shape of Au Nanostructures Using SAXS

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