Study of the internal structure of polymer micelles by anomalous small-angle X-ray scattering at two edges

Sakou, Megumi; Takechi, Atsuro; Murakami, Shinichi; Sakurai, Kazuo; Akiba, Isamu

doi:10.1107/s0021889813022450

Cited by 12 publications

(8 citation statements)

References 34 publications

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“…ASAXS analyses have been applied for visualization of spatial distribution of a targeted element in nano-sized particles, such as metal nanoparticles, polymer micelles, and so forth [10][11][12][13][14][15][16][17][18][19][20][21][22]. Therefore, by using ASAXS for polymer micelles incorporating model drug compounds labeled with a marker element, we expect to visualize the 4 spatial distributions of drug compounds in polymer micelles.…”

Section: Introductionmentioning

confidence: 99%

“…As written below, I(q) must be compared for the same value of q in ASAXS analyses, although the change in energy of incident X-ray led to a shift in the q-value assigned to a given pixel of the detector. Then, the SAXS profiles were interpolated by means of a cubic-spline method without any smoothing or corrections to correct for the q-shift [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution of hydrophobic compounds in polymer micelles as explored by anomalous small-angle X-ray scattering near Br K-edge

Nakanishi

Kinoshita

Sasaki

et al. 2016

European Polymer Journal

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial distribution of hydrophobic compounds in polymer micelles as explored by anomalous small-angle X-ray scattering near Br K-edge

Nakanishi

Kinoshita

Sasaki

et al. 2016

European Polymer Journal

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“…temperature-induced micelle formation is reported by Behrens et al (2014), while the value of double-anomalous SAXS is highlighted in studying the internal structure of polymer micelles by Sakou et al (2013).…”

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confidence: 99%

“…In addition to the application to polymer micelles reported by Sakou et al (2013), Hoell et al (2014) report on the use of ASAXS to study calcium fluoride nanoparticles embedded in a silicate glass matrix, while Haas et al (2013) combine ASAXS with UV-Vis spectroscopy to highlight catalysis in gold/palladium nanoclusters. ASAXS also finds application to hydrogen storage materials in the form of a calcium reactive hydride composite as reported by Karimi et al (2014).…”

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confidence: 99%

Introduction to the special issue for the 15th International Conference on Small-Angle Scattering (SAS2012)

Gilbert

Allen

2014

J Appl Cryst

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extensive reports on the conference, including special sessions, plenary speakers, prize winners, satellite meetings etc., the reader is referred to Gilbert (2013) and http://www.ansto.gov.au/Events/ Eventsandresources/Past/SAS2012/index.htm.The scientific publishing landscape is changing. Over the past few meetings of the small-angle scattering community, it has become challenging for conference organizers to publish traditional volumes of proceedings in scientific journals without impacting on metrics of concern to many publishing houses, namely impact factor, despite an expressed need to have proceedings. Equally, many scientists would choose not to submit their findings to proceedings and wish to communicate their work in high-impact-factor journals only. From broadly canvassing the community, it has become evident that both proceedings and selected articles have their own rightful place and are valuable sources of reference for both the newcomer to the field and established researchers alike. As such, for the first time, the organizers of the small-angle scattering conference have published both proceedings (McGillivray et al., 2012) -reflecting the full content of the meeting and reviewed to the extent that the work has been selected for conference presentation -and, here, a special issue in what many would consider to be the traditional and natural home for small-angle scattering, namely Journal of Applied Crystallography.The production of this special issue has been a painstaking process. Attendees were invited to submit articles on the basis that, not only would their work be exposed to rigorous review but, even then, only selected articles would be published. The refereeing process was strict and thorough, many papers were rejected, and all were improved. We are grateful to all the authors that submitted material, whether selected or not, as well as the Guest Co-editors -Andrew Jackson, Yoshiyuki Amemiya, Charles Dewhurst, Dmitri Svergun and Aldo Craievich -the many referees for their invaluable effort which made the publication of this special issue possible and, indeed, the entire scientific programme committee that developed such a compelling programme. We would also like to thank Lisa Stephenson and Peter Strickland at the IUCr Editorial Office in Chester, UK, for their support and guidance. The resulting compilation provides an excellent overview of the state of the art across the spectrum of small-angle neutron and X-ray scattering (SANS and SAXS), covering the fields of application, theory, methods of analysis and instrumentation. Kaneko et al. (2014) report on the application of time-resolved SANS to study guestexchange processes in co-crystals of syndiotactic polystyrene. The use of scattering methods to investigate industrially relevant processing is described by Portale et al. (2013), with the application of combined small-and wide-angle X-ray scattering (SAXS/ WAXS) to polystyrene, and by Hemmi et al. (2014) for stereo-complex crystals of poly(lactic acid) blends under shear flow. The influ...

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“…This publication outlines in detail the basic mathematical aspects related to the scientific results of a series of former publications [4][5][6][7][8][9][10][11][12][13][14][15][16] obtained from quantitative ASAXS measurements applied to very different physicochemical systems. The quantitative analysis of the nano-scaled phases is correlated with the structural parameters, via the pair correlation functions and the socalled basic scattering functions, which provide (by Fourier transform) the nano-scaled architecture with very high statistical significance because scattering experiments average over up to 10 10 structural entities.…”

Section: Introductionmentioning

confidence: 99%

The Solution of the Eigenvector Problem in Synchrotron Radiation Based Anomalous Small-Angle X-Ray Scattering

Goerigk¹

2013

ALAMT

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In the last three decades Synchrotron radiation became an indispensable experimental tool for chemical and structural analysis of nano-scaled properties in solid state physics, chemistry, materials science and life science thereby rendering the explanation of the macroscopic behavior of the materials and systems under investigation. Especially the techniques known as Anomalous Small-Angle X-ray Scattering provide deep insight into the materials structural architecture according to the different chemical components on lengths scales starting just above the atomic scale (≈1 nm) up to several 100 nm. The techniques sensitivity to the different chemical components makes use of the energy dependence of the atomic scattering factors, which are different for all chemical elements, thereby disentangling the nanostructure of the different chemical components by the signature of the elemental X-ray absorption edges i.e. by employing synchrotron radiation. The paper wants to focus on the application of an algorithm from linear algebra in the field of synchrotron radiation. It provides a closer look to the algebraic prerequisites, which govern the system of linear equations established by these experimental techniques and its solution by solving the eigenvector problem. The pair correlation functions of the so-called basic scattering functions are expressed as a linear combination of eigenvectors.

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Study of the internal structure of polymer micelles by anomalous small-angle X-ray scattering at two edges

Cited by 12 publications

References 34 publications

Spatial distribution of hydrophobic compounds in polymer micelles as explored by anomalous small-angle X-ray scattering near Br K-edge

Spatial distribution of hydrophobic compounds in polymer micelles as explored by anomalous small-angle X-ray scattering near Br K-edge

Introduction to the special issue for the 15th International Conference on Small-Angle Scattering (SAS2012)

The Solution of the Eigenvector Problem in Synchrotron Radiation Based Anomalous Small-Angle X-Ray Scattering

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