Contrast inversion in nc-AFM on Si(111)7×7 due to short-range electrostatic interactions

2001 ◽  
Vol 72 (S1) ◽  
pp. S19-S22 ◽  
Author(s):  
M. Guggisberg ◽  
O. Pfeiffer ◽  
S. Schär ◽  
V. Barwich ◽  
M. Bammerlin ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Short Range ◽  
Contrast Inversion

scholarly journals Dynamic Equilibria of Short-Range Electrostatic Interactions at Molecular Interfaces of Protein–DNA Complexes

2015 ◽  
Vol 6 (14) ◽  
pp. 2733-2737 ◽  
Author(s):  
Chuanying Chen ◽  
Alexandre Esadze ◽  
Levani Zandarashvili ◽  
Dan Nguyen ◽  
B. Montgomery Pettitt ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Short Range ◽  
Dna Complexes ◽  
Dynamic Equilibria

Long- and Short-Range Electrostatic Interactions Affect the Rheology of Highly Concentrated Antibody Solutions

2009 ◽  
Vol 26 (12) ◽  
pp. 2607-2618 ◽  
Author(s):  
Ravi Chari ◽  
Kavita Jerath ◽  
Advait V. Badkar ◽  
Devendra S. Kalonia
Keyword(s):  
Electrostatic Interactions ◽  
Short Range

scholarly journals Steric “attraction”: not by dispersion alone

2018 ◽  
Vol 14 ◽  
pp. 1482-1490 ◽  
Author(s):  
Ganna Gryn’ova ◽  
Clémence Corminboeuf
Keyword(s):  
Structure Prediction ◽  
Electrostatic Interactions ◽  
Short Range ◽  
Organic Molecules ◽  
Crystal Structure Prediction ◽  
Range Effect ◽  
Electrostatic Stabilization ◽  
Non Covalent Interactions ◽  
London Dispersion ◽  
Covalent Interactions

Non-covalent interactions between neutral, sterically hindered organic molecules generally involve a strong stabilizing contribution from dispersion forces that in many systems turns the ‘steric repulsion’ into a ‘steric attraction’. In addition to London dispersion, such systems benefit from electrostatic stabilization, which arises from a short-range effect of charge penetration and gets bigger with increasing steric bulk. In the present work, we quantify this contribution for a diverse set of molecular cores, ranging from unsubstituted benzene and cyclohexane to their derivatives carrying tert-butyl, phenyl, cyclohexyl and adamantyl substituents. While the importance of electrostatic interactions in the dimers of sp2-rich (e.g., π-conjugated) cores is well appreciated, less polarizable assemblies of sp3-rich systems with multiple short-range CH···HC contacts between the bulky cyclohexyl and adamantyl moieties are also significantly influenced by electrostatics. Charge penetration is drastically larger in absolute terms for the sp2-rich cores, but still has a non-negligible effect on the sp3-rich dimers, investigated herein, both in terms of their energetics and equilibrium interaction distances. These results emphasize the importance of this electrostatic effect, which has so far been less recognized in aliphatic systems compared to London dispersion, and are therefore likely to have implications for the development of force fields and methods for crystal structure prediction.

Short range electrostatic interactions in dielectric media

1975 ◽  
Vol 63 (4) ◽  
pp. 1367-1379 ◽  
Author(s):  
Frank P. Buff ◽  
Narendra S. Goel ◽  
John R. Clay
Keyword(s):  
Electrostatic Interactions ◽  
Short Range ◽  
Dielectric Media

scholarly journals The specificity of thioredoxins and glutaredoxins is determined by electrostatic and geometric complementarity

2015 ◽  
Vol 6 (12) ◽  
pp. 7049-7058 ◽  
Author(s):  
Carsten Berndt ◽  
Jens-Dirk Schwenn ◽  
Christopher Horst Lillig
Keyword(s):  
Substrate Specificity ◽  
Electrostatic Interactions ◽  
Short Range ◽  
Redox Potentials

Specific long- and short-range electrostatic interactions and not redox potentials determine the substrate specificity of Trx family proteins.

scholarly journals Complexation and coacervation of like-charged polyelectrolytes inspired by mussels

2016 ◽  
Vol 113 (7) ◽  
pp. E847-E853 ◽  
Author(s):  
Sangsik Kim ◽  
Jun Huang ◽  
Yongjin Lee ◽  
Sandipan Dutta ◽  
Hee Young Yoo ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Short Range ◽  
Self Healing ◽  
New Paradigm ◽  
Polyelectrolyte Complexes ◽  
Underwater Adhesion ◽  
Complex Coacervate ◽  
Low Interfacial Tension ◽  
Oppositely Charged ◽  
Positively Charged

It is well known that polyelectrolyte complexes and coacervates can form on mixing oppositely charged polyelectrolytes in aqueous solutions, due to mainly electrostatic attraction between the oppositely charged polymers. Here, we report the first (to the best of our knowledge) complexation and coacervation of two positively charged polyelectrolytes, which provides a new paradigm for engineering strong, self-healing interactions between polyelectrolytes underwater and a new marine mussel-inspired underwater adhesion mechanism. Unlike the conventional complex coacervate, the like-charged coacervate is aggregated by strong short-range cation–π interactions by overcoming repulsive electrostatic interactions. The resultant phase of the like-charged coacervate comprises a thin and fragile polyelectrolyte framework and round and regular pores, implying a strong electrostatic correlation among the polyelectrolyte frameworks. The like-charged coacervate possesses a very low interfacial tension, which enables this highly positively charged coacervate to be applied to capture, carry, or encapsulate anionic biomolecules and particles with a broad range of applications.

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