Results 51 to 60 of about 95,748 (273)

Facile Biogenic Synthesis and Characterization of Seven Metal-Based Nanoparticles Conjugated with Phytochemical Bioactives Using Fragaria ananassa Leaf Extract

Molecules, 2021
In this investigation, for the first time, we used Fragaria ananassa (strawberry) leaf extract as a source of natural reducing, capping or stabilizing agents to develop an eco-friendly, cost-effective and safe process for the biosynthesis of metal-based ...
Maryam Bayat, Meisam Zargar, Tamara Astarkhanova, Elena Pakina, Sergey Ladan, Marina Lyashko, Sergey I. Shkurkin   +6 more
doaj   +1 more source

Software tools for X-ray photon correlation and X-ray speckle visibility spectroscopy [PDF]

2016 New York Scientific Data Summit (NYSDS), 2016
A set of new data analysis software tools have been developed for the study of structural dynamics of materials using coherent scattering and photon correlation techniques. The new software tools can readily process high-throughput, multidimensional data, enabling studies of slow and fast dynamics of materials using X-ray Speckle Visibility ...
Sameera K. Abeykoon, Yugang Zhang, Eric D. Dill, Thomas A. Caswell, Daniel B. Allan, Arman Akilic, Lutz Wiegart, Stuart Wilkins, Annie Heroux, Kerstin K. van Dam, Mark Sutton, Andrei Fluerasu   +11 more
openaire   +1 more source

Dynamics of hard-sphere suspension using Dynamic Light Scattering and X-Ray Photon Correlation Spectroscopy: dynamics and scaling of the Intermediate Scattering Function [PDF]

, 2010
Intermediate Scattering Functions (ISF's) are measured for colloidal hard sphere systems using both Dynamic Light Scattering (DLS) and X-ray Photon Correlation Spectroscopy (XPCS).
F. Zontone, G. Bryant, J. H. J. Thijssen, Pusey P. N., V. A. Martinez, W. van Megen   +5 more
core   +3 more sources

Kinoform optics applied to X-ray photon correlation spectroscopy

Journal of Synchrotron Radiation, 2010
Moderate-demagnification higher-order silicon kinoform focusing lenses have been fabricated to facilitate small-angle X-ray photon correlation spectroscopy (XPCS) experiments. The geometric properties of such lenses, their focusing performance and their applicability for XPCS measurements are described.
A R, Sandy, S, Narayanan, M, Sprung, J-D, Su, K, Evans-Lutterodt, A F, Isakovic, A, Stein   +6 more
openaire   +2 more sources

Kinetic viscoelasticity during early polymer-polymer spinodal dewetting

Physical Review Research, 2021
The dewetting kinetics of a supported polymer bilayer were measured in situ using coherent grazing-incidence x-ray scattering. X-ray photon correlation spectroscopy provides both the two-time correlation functions and the cross-correlation function which
J. Lal, L. B. Lurio, D. Liang, S. Narayanan, S. B. Darling, M. Sutton   +5 more
doaj   +1 more source

The Swift/BAT AGN Spectroscopic Survey (BASS) -- VI. The Gamma_X - L/L_Edd relation [PDF]

, 2017
We study the observed relation between accretion rate (in terms of L/L_Edd) and shape of the hard X-ray spectral energy distribution (namely the photon index Gamma_X) for a large sample of 228 hard X-ray selected, low-redshift active galactic nuclei (AGN)
Trakhtenbrot, Benny, Ricci, Claudio, Koss, Michael J., Schawinski, Kevin, Mushotzky, Richard, Ueda, Yoshihiro, Veilleux, Sylvain, Lamperti, Isabella, Oh, Kyuseok, Treister, Ezequiel, Stern, Daniel, Harrison, Fiona, Balokovic, Mislav, Gehrels, Neil   +13 more
core   +1 more source

The Dynamics of Oxygen Ion Exchange in Epitaxial Strontium Cobaltite Bilayers

Advanced Materials Interfaces, 2023
The exchange of ions across interfaces is key to the field of iontronics, where the properties of the device can be altered by the local ion concentration.
Jill K. Wenderott, Eric M. Dufresne, Yan Li, Hui Cao, Qingteng Zhang, K. V. L. V. Narayanachari, D. Bruce Buchholz, Supratik Guha, Dillon D. Fong   +8 more
doaj   +1 more source

X-ray photon correlation spectroscopy

Journal of Synchrotron Radiation, 2014
In recent years, X-ray photon correlation spectroscopy (XPCS) has emerged as one of the key probes of slow nanoscale fluctuations, applicable to a wide range of condensed matter and materials systems. This article briefly reviews the basic principles of XPCS as well as some of its recent applications, and discusses some novel approaches to XPCS ...
openaire   +2 more sources

Co-GISAXS as a New Technique to Investigate Surface Growth Dynamics

, 2015
Detailed quantitative measurement of surface dynamics during thin film growth is a major experimental challenge. Here X-ray Photon Correlation Spectroscopy with coherent hard X-rays is used in a Grazing-Incidence Small-Angle X-ray Scattering (i.e.
Headrick, Randall L., Hoskin, Christa, Ludwig Jr, Karl F., Narayanan, Suresh, Rainville, Meliha G., Sandy, Alec R., Ulbrandt, Jeffrey G., Zhou, Hua   +7 more
core   +1 more source

A 10-day ASCA Observation of the Narrow-line Seyfert~1 galaxy IRAS 13224-3809 [PDF]

, 2000
(Abridged) We present an analysis of a 10-day continuous ASCA observation of the narrow-line Seyfert 1 galaxy IRAS 13224-3809. The soft (0.7-1.3 keV) and hard (1.3-10 keV) X-ray band light curves binned to 5000s reveal trough-to-peak variations by a ...
Boller, Th., Dewangan, G. C., Leighly, K. M., Singh, K. P.   +3 more
core   +2 more sources