Adsorption thermodynamics of two-domain antifreeze proteins: theory and Monte Carlo simulations

2016 ◽  
Vol 18 (35) ◽  
pp. 24549-24559 ◽  
Author(s):  
Claudio F. Narambuena ◽  
Fabricio O. Sanchez Varretti ◽  
Antonio J. Ramirez-Pastor

In this paper we develop the statistical thermodynamics of two-domain antifreeze proteins adsorbed on ice.

2017 ◽  
Vol 19 (46) ◽  
pp. 31377-31388 ◽  
Author(s):  
Juan Ignacio Lopez Ortiz ◽  
Paola Torres ◽  
Evelina Quiroga ◽  
Claudio F. Narambuena ◽  
Antonio J. Ramirez-Pastor

Statistical mechanics studies predict how three-domain antifreeze proteins adsorb on an ice surface, with a remarkable agreement with Monte Carlo simulations.


2018 ◽  
Vol 116 (21-22) ◽  
pp. 3283-3291 ◽  
Author(s):  
Mona S. Minkara ◽  
Tyler Josephson ◽  
Connor L. Venteicher ◽  
Jingyi L. Chen ◽  
Daniel J. Stein ◽  
...  

Author(s):  
Matthew T. Johnson ◽  
Ian M. Anderson ◽  
Jim Bentley ◽  
C. Barry Carter

Energy-dispersive X-ray spectrometry (EDS) performed at low (≤ 5 kV) accelerating voltages in the SEM has the potential for providing quantitative microanalytical information with a spatial resolution of ∼100 nm. In the present work, EDS analyses were performed on magnesium ferrite spinel [(MgxFe1−x)Fe2O4] dendrites embedded in a MgO matrix, as shown in Fig. 1. spatial resolution of X-ray microanalysis at conventional accelerating voltages is insufficient for the quantitative analysis of these dendrites, which have widths of the order of a few hundred nanometers, without deconvolution of contributions from the MgO matrix. However, Monte Carlo simulations indicate that the interaction volume for MgFe2O4 is ∼150 nm at 3 kV accelerating voltage and therefore sufficient to analyze the dendrites without matrix contributions.Single-crystal {001}-oriented MgO was reacted with hematite (Fe2O3) powder for 6 h at 1450°C in air and furnace cooled. The specimen was then cleaved to expose a clean cross-section suitable for microanalysis.


1979 ◽  
Vol 40 (C7) ◽  
pp. C7-63-C7-64
Author(s):  
A. J. Davies ◽  
J. Dutton ◽  
C. J. Evans ◽  
A. Goodings ◽  
P.K. Stewart

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