Screened Coulomb interactions of general macroions with nonzero particle volume

Everts, Jeffrey Christopher (avtor)

A semianalytical approach is developed to calculate the effective pair potential of rigid arbitrarily shaped macroions with a nonvanishing particle volume, valid within linear screening theory and the mean-field approximation. The essential ingredient for this framework is a mapping of the particle to a singular charge distribution with adjustable effective charge and shape parameters determined by the particle surface electrostatic potential. For charged spheres, this method reproduces the well-known Derjaguin- andau-Verwey-Overbeek (DLVO) potential. Further exemplary benchmarks of the method for more complicated cases, like tori, triaxial ellipsoids, and additive torus-sphere mixtures, leads to accurate closed-form integral expressions for all particle separations and orientations. The findings are relevant for determining the phase behavior of macroions with experiments and simulations for various particle shapes.

• Jezik: Angleški jezik
• Ključne besede: soft matter physics, electrostatics, electrostatic potential, macroions
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2020
• Št. strani: Str. 033144-1-033144-13
• Številčenje: Vol. 2, iss. 3
• PID: 20.500.12556/RUL-117826
• UDK: 537.2
• ISSN pri članku: 2643-1564
• DOI: 10.1103/PhysRevResearch.2.033144
• COBISS.SI-ID: 23873539
• Datum objave v RUL: 29.07.2020

Gradivo je del revije

• Naslov: Physical review research
• Založnik: American Phyisical Society
• ISSN: 2643-1564
• COBISS.SI-ID: 32822823

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 29.07.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: fizika mehke snovi, elektrostatika, elektrostatski potencial, makroioni

Projekti

• Financer: EC - European Commission
• Program financ.: H2020
• Številka projekta: 795377
• Naslov: Topological Colloidal Double Layers
• Akronim: TCDL

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J1-9149
• Naslov: Orientacijske interakcije v posplošenem Thomsonovem problemu: dipolna stabilizacija sferičnih nanostruktur