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Title: Structural Emergence in Particle Dispersions

 [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [2];  [2]
  1. Department of Materials Science, University of Cincinnati, Cincinnati, Ohio 45221, United States
  2. Colors Group, Sun Chemical Corporation, Cincinnati, Ohio 45232, United States
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
OSTI Identifier:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Langmuir; Journal Volume: 33; Journal Issue: 49
Country of Publication:
United States

Citation Formats

Mulderig, Andrew, Beaucage, Gregory, Vogtt, Karsten, Jiang, Hanqiu, Jin, Yan, Clapp, Lisa, and Henderson, Donald C. Structural Emergence in Particle Dispersions. United States: N. p., 2017. Web. doi:10.1021/acs.langmuir.7b03033.
Mulderig, Andrew, Beaucage, Gregory, Vogtt, Karsten, Jiang, Hanqiu, Jin, Yan, Clapp, Lisa, & Henderson, Donald C. Structural Emergence in Particle Dispersions. United States. doi:10.1021/acs.langmuir.7b03033.
Mulderig, Andrew, Beaucage, Gregory, Vogtt, Karsten, Jiang, Hanqiu, Jin, Yan, Clapp, Lisa, and Henderson, Donald C. 2017. "Structural Emergence in Particle Dispersions". United States. doi:10.1021/acs.langmuir.7b03033.
title = {Structural Emergence in Particle Dispersions},
author = {Mulderig, Andrew and Beaucage, Gregory and Vogtt, Karsten and Jiang, Hanqiu and Jin, Yan and Clapp, Lisa and Henderson, Donald C.},
abstractNote = {},
doi = {10.1021/acs.langmuir.7b03033},
journal = {Langmuir},
number = 49,
volume = 33,
place = {United States},
year = 2017,
month =
  • The effective pair interaction (potential of the mean force) between large hard spherical colloidal particles in a dispersion containing small hard sphere particles has been studied theoretically. We calculated the effective interaction from the total correlation function by solving the Ornstein-Zernike equation. For a simple binary mixture of particles, the calculated effective interaction between two large (colloidal) particles is found to be oscillatory in general, including both the Asakura-Oosawa type attractive depletion well and the repulsive energy barrier (which is caused by the formation of small particle layers between these two large particles). A systematic study was conducted to examinemore » the relationship between the effective interaction potential and the controllable parameters like the particle concentration and the size ratio. The existence of the structural energy barrier is expected to have dual effects on the stability of the large particle dispersion in general: stabilizing in a short time scale and destabilizing in a long time scale. The effect of the polydispersity of small particles on both depletion and the structural force between large particles is also addressed in our study, and we found that polydispersity affects the structural energy barrier more than it does the attractive depletion well. 45 refs., 11 figs.« less
  • No abstract prepared.
  • A synoptic view of the evolution of structure with Z and N in nuclei is beginning to emerge from the confiuence of new experimental results on phase transitional behavior, newly proposed many-body symmetries for critical point nuclei, a new generation of solvable collective models, powerful approaches to viewing the systematics of nuclear properties based on simple models of residual interactions, and advances in microscopic calculations of medium mass and heavy nuclei. A recent compilation of nuclear masses has contributed by permitting empirical extractions of new p-n interaction strengths of the last protons with the last neutrons in many nuclei acrossmore » the nuclear chart. A number of these developments will be discussed with an eye to the opportunities and challenges they provide for the future, especially in the era of next-generation exotic beam facihties throughout the world.« less
  • Highlights: •All eukaryotes have at least a single copy of a bem46 ortholog. •The catalytic triad of BEM46 is illustrated using sequence and structural analysis. •We identified indels in the conserved domain of BEM46 protein. •Localization studies of BEM46 protein were carried out using GFP-fusion tagging. -- Abstract: The bud emergence 46 (BEM46) protein from Neurospora crassa belongs to the α/β-hydrolase superfamily. Recently, we have reported that the BEM46 protein is localized in the perinuclear ER and also forms spots close by the plasma membrane. The protein appears to be required for cell type-specific polarity formation in N. crassa. Furthermore,more » initial studies suggested that the BEM46 amino acid sequence is conserved in eukaryotes and is considered to be one of the widespread conserved “known unknown” eukaryotic genes. This warrants for a comprehensive phylogenetic analysis of this superfamily to unravel origin and molecular evolution of these genes in different eukaryotes. Herein, we observe that all eukaryotes have at least a single copy of a bem46 ortholog. Upon scanning of these proteins in various genomes, we find that there are expansions leading into several paralogs in vertebrates. Usingcomparative genomic analyses, we identified insertion/deletions (indels) in the conserved domain of BEM46 protein, which allow to differentiate fungal classes such as ascomycetes from basidiomycetes. We also find that exonic indels are able to differentiate BEM46 homologs of different eukaryotic lineage. Furthermore, we unravel that BEM46 protein from N. crassa possess a novel endoplasmic-retention signal (PEKK) using GFP-fusion tagging experiments. We propose that three residues namely a serine 188S, a histidine 292H and an aspartic acid 262D are most critical residues, forming a catalytic triad in BEM46 protein from N. crassa. We carried out a comprehensive study on bem46 genes from a molecular evolution perspective with combination of functional analyses. The evolutionary history of BEM46 proteins is characterized by exonic indels in lineage specific manner.« less