The CONTIN algorithm and its application to determine the size distribution of microgel suspensions

被引：113

作者：

Scotti, A. ^{[1
,2
]}

Liu, W. ^{[2
,3
]}

Hyatt, J. S. ^{[2
]}

Herman, E. S. ^{[4
]}

Choi, H. S. ^{[5
]}

Kim, J. W. ^{[6
,7
]}

Lyon, L. A. ^{[4
]}

Gasser, U. ^{[1
]}

Fernandez-Nieves, A. ^{[2
]}

机构：

[1] Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[3] Shandong Univ Technol, Sch Elect & Elect Engn, Zibo 255049, Peoples R China

[4] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

[5] Shinsegae Int, Seoul 135954, South Korea

[6] Hanyang Univ, Dept Appl Chem, Ansan 426791, Gyeonggi Do, South Korea

[7] Hanyang Univ, Dept Bionano Technol, Ansan 426791, Gyeonggi Do, South Korea

来源：

JOURNAL OF CHEMICAL PHYSICS | 2015年 / 142卷 / 23期

基金：

瑞士国家科学基金会;

关键词：

STRUCTURAL-CHANGES; PHASE-BEHAVIOR; SCATTERING; SOFT; POLYDISPERSITY; INVERSION; RATES;

D O I：

10.1063/1.4921686

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We review a powerful regularization method, known as CONTIN, for obtaining the size distribution of colloidal suspensions from dynamic light scattering data. We show that together with the so-called L-curve criterion for selecting the optimal regularization parameter, the method correctly describes the average size and size distribution of microgel suspensions independently characterized using small-angle neutron scattering. In contrast, we find that when using the default regularization process, where the regularizer is selected via the "probability to reject" method, the results are not as satisfactory. (C) 2015 AIP Publishing LLC.

引用

页数：13

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