Unbiased Quantitative Analysis of Scattering Length Density Profiles in Dilute Solutions via Small-Angle Scattering
ORAL
Abstract
We present an alternative method for quantitatively analyzing particle density profiles in dilute solutions using small-angle scattering. Our technique utilizes an orthonormal basis function expansion, allowing for the extraction of characteristic mass distributions in self-assembled structures without the need for a predefined structural model. Through computational benchmarking, we demonstrate its efficacy by accurately reconstructing the density profiles of soft ball systems with varying levels of fuzziness based on their scattering signatures. We further illustrate the method's versatility by fitting small-angle neutron scattering data from L64 Pluronic micelles at different temperatures. This straightforward and analytical approach enhances scattering analysis by eliminating reliance on presumptive structural models, paving the way for detailed quantitative descriptions of complex nanoscopic structures in various soft matter systems.
*Guan-Rong Huang is supported by the National Science and Technology Council (NSTC) in Taiwan (grant No. NSTC 111- 2112-M-110-021-MY3). Yangyang Wang is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Early Career Research Program (Award KC0402010) under contract DE-AC05-00OR22725. 725. Yuya Shinohara is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials and Science and Engineering Division.
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Publication: Guan-Rong Huang et al., J. Appl. Cryst. 57(1), 140–150 (2024).
Presenters
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GUAN-RONG HUANG
- National Tsing Hua University