Results 111 to 120 of about 36,883 (262)

The discovery of quiescent X-ray emission from SAX J1808.4-3658, the transient 2.5ms pulsar [PDF]

open access: yes, 2000
We report on a 20 ks BeppoSAX observation of the transient 2.5 ms X-ray pulsar SAX J1808.4-3658 in its quiescent state. A source at a level of ~ 3 x 10^-3 c/s was detected with the BeppoSAX/MECS at a position consistent with that of SAX J1808.4-3658. The inferred 0.5-10 keV luminosity was to that measured from other quiescent low mass X-ray transients ...
arxiv   +1 more source

Unravelling the Atomic Structure of a Metal‐Covalent Organic Framework Assembled from Ruthenium Metalloligands

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Metal‐covalent organic frameworks (MCOFs) are novel porous materials that exhibit the advantages of covalent and metal‐organic frameworks. However, it is extremely difficult to resolve their atomic structure and better understand their structure‐properties relation. This work utilizes a synergistic combination of advanced microscopy, spectroscopic, and
Seán Hennessey   +11 more
wiley   +1 more source

LabDisk for SAXS: a centrifugal microfluidic sample preparation platform for small-angle X-ray scattering.

open access: yesLab on a Chip, 2016
We present a centrifugal microfluidic LabDisk for protein structure analysis via small-angle X-ray scattering (SAXS) on synchrotron beamlines. One LabDisk prepares 120 different measurement conditions, grouped into six dilution matrices.
F. Schwemmer   +12 more
semanticscholar   +1 more source

A Natural Lignification Inspired Super‐Hard Wood‐Based Composites with Extreme Resilience

open access: yesAdvanced Materials, EarlyView.
Super‐hard wood‐based composites (WBC) are designed and developed inspired by the mesoscale homogeneous lignification process intrinsic to tree growth. This innovative hybrid structure is achieved by leveraging the infusion of low‐molecular‐weight phenol formaldehyde resin into the cell walls of thin wood slices, followed by a unique multi‐layer ...
Yuxiang Huang   +11 more
wiley   +1 more source

Microfluidic SAXS Study of Lamellar and Multilamellar Vesicle Phases of Linear Sodium Alkylbenzenesulfonate Surfactant with Intrinsic Isomeric Distribution.

open access: yesLangmuir, 2016
The structure and flow behavior of a concentrated aqueous solution (45 wt %) of the ubiquitous linear sodium alkylbenzenesulfonate (NaLAS) surfactant is investigated by microfluidic small-angle X-ray scattering (SAXS) at 70 °C.
A. Poulos   +10 more
semanticscholar   +1 more source

Self‐Organized Growth of Catalyst‐Free Single Crystal WnO3n‐2 (n = 25) Nanowire Bundles on Si (111) via Selective He+ Ion Irradiation

open access: yesAdvanced Materials Interfaces, EarlyView.
A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur   +3 more
wiley   +1 more source

pHLIP Peptide Interaction with a Membrane Monitored by SAXS.

open access: yesJournal of Physical Chemistry B, 2016
pH (Low) Insertion Peptides (pHLIP peptides) find application in studies of membrane-associated folding because spontaneous insertion of these peptides is conveniently triggered by varying pH.
T. Narayanan   +5 more
semanticscholar   +1 more source

Crystallographic Insights into the Structural Heterogeneities of 2D Ruddlesden‐Popper Perovskite Films

open access: yesAdvanced Materials Interfaces, EarlyView.
2D Ruddlesden‐Popper phase perovskite (RPP) films for applications in photovoltaics are shown to exhibit structural heterogeneities at both microscopic and mesoscopic scales that can affect cross‐film charge carrier transport. The mechanisms of RPP film formation and the possible means to control film structure to optimize 2D perovskite solar cell ...
Fei Zheng   +7 more
wiley   +1 more source

High‐Performance n‐Type OFETs Enabled by Pyridine‐Substituted Diketopyrrolopyrrole Organic Semiconductor and Elastomer Stretchable Blends

open access: yesAdvanced Materials Technologies, EarlyView.
Two n‐type small molecules (DPPPy‐C10‐TN and DPPPy‐C‐Si‐TN) based on alkyl/siloxane‐substituted pyridine flanked diketopyrrolopyrrole (DPPPy) end capped with thienyl naphthalimide (TN) for organic filed effect transistors (OFETs) are reported. Interestingly, bottom‐gate top‐contact OFETs based on DPPPy‐C‐Si‐TN:SEBS blend show a high electron mobility ...
Rajesh Kothandaraman   +9 more
wiley   +1 more source

Progress in small-angle scattering from biological solutions at high-brilliance synchrotrons

open access: yesIUCrJ, 2017
Small-angle X-ray scattering (SAXS) is an established technique that provides low-resolution structural information on macromolecular solutions. Recent decades have witnessed significant progress in both experimental facilities and in novel data-analysis
Anne T. Tuukkanen   +2 more
doaj   +1 more source

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