重新审视微凝胶胶体模糊球模型的密度曲线

IF 2.9 3区 化学 Q3 CHEMISTRY, PHYSICAL
Soft Matter Pub Date : 2024-10-07 DOI:10.1039/D4SM01045K
Frank Scheffold
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引用次数: 0

摘要

常见的中性聚合物微凝胶表现出不均匀的密度曲线,并逐渐衰减,这通常用模糊球模型来描述。该模型基于用高斯卷积塌缩实心球轮廓来描述微凝胶在良好溶剂中的不均匀膨胀的想法。在这里,我们展示了最近几项研究(如超分辨率显微镜)中使用的真实空间中的相应密度曲线与模糊球模型不同,并解释了如何正确地从倒易空间建模过渡到真实空间。我们的工作旨在阐明该模型的应用,从而避免今后出现错误。我们的讨论对于比较密度曲线的其他真实空间模型和已建立的模糊球模型也至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Revisiting the density profile of the fuzzy sphere model for microgel colloids

Revisiting the density profile of the fuzzy sphere model for microgel colloids

Common neutral polymer microgels exhibit an inhomogeneous density profile with a gradual decay that is commonly described using the fuzzy sphere model. The model is based on the idea of convolving the collapsed solid sphere profile with a Gaussian to describe inhomogeneous swelling of the microgel in a good solvent. Here we show that the corresponding density profile in real space used in several recent works – such as in super-resolution microscopy – is different from the fuzzy sphere model, and we explain how to correctly transition between reciprocal space modelling to real space. Our work aims to clarify the application of the model so that errors can be avoided in the future. Our discussion is also crucial when comparing alternative real-space models for the density profile with the established fuzzy sphere model.

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来源期刊
Soft Matter
Soft Matter 工程技术-材料科学:综合
CiteScore
6.00
自引率
5.90%
发文量
891
审稿时长
1.9 months
期刊介绍: Where physics meets chemistry meets biology for fundamental soft matter research.
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