Electrostatic interaction between a rod-like macromolecule and a circular orifice/disk in an electrolyte solution

doi:10.1088/1674-1056/20/7/076401

Abstract We present the solutions of the interaction energy for a colloid system with a charged rod-like macromolecule immersed in a bulk electrolyte and moving along the axis of a circular orifice or disk (orifice/disk). The calculation requires a numerical computation of the surface charge profiles, which result from a constant surface potential on the macromolecule and the orifice/disk. In the calculation, remarkable divergences of the surface charge emerge on the edges of the macromolecule and the orifice/disk, which are well-known edge effects. The anisotropic distribution of the surface charge (effective dipole) results in an attraction between these two charged objects. This attraction is enhanced with the increase of the screening length of the system for both the orifice and the disk systems. However, the sizes of the orifice and the disk reduce to different effects on the interaction energy.

Keywords: electrostatic interaction Green's function anistropic distribution

Received: 07 December 2010
Revised: 29 January 2011
Accepted manuscript online:

PACS:	64.70.pv	(Colloids)
	47.57.J-	(Colloidal systems)
	41.20.Cv	(Electrostatics; Poisson and Laplace equations, boundary-value problems)

Cite this article:

Lian Zeng-Ju(连增菊) Electrostatic interaction between a rod-like macromolecule and a circular orifice/disk in an electrolyte solution 2011 Chin. Phys. B 20 076401

[1]	Buyukdagli S, Manghi M and Palmeri J 2010 Phys. Rev. E 81 041601
[2]	Lee S W, Park S E and Park S J 2007 J. Ind. Eng. Chem. 13 395
[3]	Chen W, Tan S, Huang Z, Ng T K, Ford W T and Tong P 2006 Phys. Rev. E 74 021406
[4]	Zhang L F and Huang J P 2010 Chin. Phys. B 19 024213
[5]	Guo J Y, Huang L X and Xiao C M 2006 Chin. Phys. B 15 1638
[6]	Hilal N, Ogunbiyl O O, Miles N J and Nigmatullin R 2005 Sep. Sci. Technol. 40 1957
[7]	Morrison F A and Stukel J J 1970 J. Colloid Interface Sci. bf 33 88
[8]	Keh H J, Lien L C and Chin J 1989 Inst. Chem. Engin. 20 283
[9]	Keh H J and Anderson J L 1985 J. Fluid Mech. 194 417
[10]	Keh H J and Lien L C 1991 J. Fluid Mech. 224 305
[11]	Purdy K R, Dogic Z, Fraden S, Rühm A, Lurio L and Mochrie S G J 2003 Phys. Rev. E bf 67 031708
[12]	Chen Y F, Milstein J N and Meiners J 2010 Phys. Rev. Lett. 104 258103
[13]	Shayeganfar F, Farouji S J, Movahed M S, Jafari G R and Tabar M R 2010 Phys. Rev. E 81 061404
[14]	van der Beer D and Lekkerkerker H N W 2003 Europhys. Lett. 61 702
[15]	Chapot D, Bocquet L and Trizac E 2004 J. Chem. Phys. 120 3969
[16]	Leote de Carvalho R J F, Trizac E and Hansen J P 2000 Phys. Rev. E 61 1634
[17]	Jackson J D 1975 Classical Electrodynamics (New York: Wiley)
[18]	Lian Z J and Ma H R 2007 J. Chem. Phys. 127 104507
[19]	Phillips R J 1995 J. Colloid Interface Sci. bf175 386
[20]	Grier D G and Han Y 2007 Phys. Rev. E bf76 041406
[21]	Derjaguin B V and Landau L D 1994 Acta Physicochim bf14 733
[22]	Verwey E J W and Overbeek J T G 1948 Theory of Stability of Lyophobic Colloids (Amsterdam: Elsevier)
[23]	Trizac E and Raimbault J L 1999 Phys. Rev. E bf60 6530
[24]	Sader J E, Derek Y and Chan C 1999 J. Colloid Interface Sci. bf213 268
[25]	Lian Z J and Ma H R 2008 J. Phys. Condens. Matter 20 035109
[26]	Baker R W 2004 Membrane Technology and Applications 2nd edn. (Chichester: John Wiley & Sons)
[27]	Keh H J and Lien L C 1991 J. Fluid Mech. bf 224 305

[1]	Evaluation on performance of MM/PBSA in nucleic acid-protein systems Yuan-Qiang Chen(陈远强), Yan-Jing Sheng(盛艳静), Hong-Ming Ding(丁泓铭), and Yu-Qiang Ma(马余强). Chin. Phys. B, 2022, 31(4): 048701.
[2]	Electrostatic interaction of a spherical particle in the vicinity of a circular orifice Lian Zeng-Ju(连增菊). Chin. Phys. B, 2010, 19(5): 058202.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Electrostatic interaction between a rod-like macromolecule and a circular orifice/disk in an electrolyte solution

Cite this article:

Online attention