Colloidal interactions in suspensions of rods

被引：106

作者：

Lin, KH ^{[1
]}

Crocker, JC ^{[1
]}

Zeri, AC ^{[1
]}

Yodh, AG ^{[1
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.87.088301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report direct measurements of entropic interactions of colloidal spheres in suspensions of rodlike fd bacteriophage. We investigate the influence of sphere size, rod concentration, and ionic strength on these interactions. Although the results compare favorably with a recent calculation, small discrepancies reveal entropic effects due to rod flexibility. At high salt concentrations, the potential turns repulsive as a result of viral adsorption on the spheres and viral bridging between the spheres.

引用

页码：88301 / 1

页数：4

共 23 条

[1] Entropically driven microphase transitions in mixtures of colloidal rods and spheres [J].

Adams, M ;

Dogic, Z ;

Keller, SL ;

Fraden, S .

NATURE, 1998, 393 (6683) :349-352

[2] INTERACTION BETWEEN PARTICLES SUSPENDED IN SOLUTIONS OF MACROMOLECULES [J].

ASAKURA, S ;

OOSAWA, F .

JOURNAL OF POLYMER SCIENCE, 1958, 33 (126) :183-192

[3]

AUVRAY L, 1981, J PHYS-PARIS, V42, P79, DOI 10.1051/jphys:0198100420107900

[4] Understanding depletion forces beyond entropy [J].

Bechinger, C ;

Rudhardt, D ;

Leiderer, P ;

Roth, R ;

Dietrich, S .

PHYSICAL REVIEW LETTERS, 1999, 83 (19) :3960-3963

[5] Methods of digital video microscopy for colloidal studies [J].

Crocker, JC ;

Grier, DG .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 179 (01) :298-310

[6] Entropic attraction and repulsion in binary colloids probed with a line optical tweezer [J].

Crocker, JC ;

Matteo, JA ;

Dinsmore, AD ;

Yodh, AG .

PHYSICAL REVIEW LETTERS, 1999, 82 (21) :4352-4355

[7] Enhanced stability of layered phases in parallel hard spherocylinders due to addition of hard spheres [J].

Dogic, Z ;

Frenkel, D ;

Fraden, S .

PHYSICAL REVIEW E, 2000, 62 (03) :3925-3933

[8] Architecture in the microcosm: biocolloids, self-assembly and pattern formation [J].

Hemsley, AR ;

Griffiths, PC .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2000, 358 (1766) :547-564

[9] PHASE-BEHAVIOR OF A MODEL COLLOID-POLYMER MIXTURE [J].

ILETT, SM ;

ORROCK, A ;

POON, WCK ;

PUSEY, PN .

PHYSICAL REVIEW E, 1995, 51 (02) :1344-1352

[10]

Kay BK., 1996, PHAGE DISPLAY PEPTID

← 1 2 3 →