Depletion potentials induced by charged colloidal rods

L. Helden; G.H. Koenderink; P. Leiderer; C. Bechinger

doi:10.1021/la049571l

Depletion potentials induced by charged colloidal rods

L. Helden, G.H. Koenderink, P. Leiderer, C. Bechinger

Physics of Living Systems

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indicating correlation effects between the rods.

Original language	English
Pages (from-to)	5662-5665
Journal	Langmuir
Volume	20
Issue number	14
DOIs	https://doi.org/10.1021/la049571l
Publication status	Published - 2004

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Depletion potentials induced by charged colloidal rods

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10.1021/la049571l

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title = "Depletion potentials induced by charged colloidal rods",

abstract = "We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indicating correlation effects between the rods.",

author = "L. Helden and G.H. Koenderink and P. Leiderer and C. Bechinger",

note = "Depletion potentials induced by charged colloidal rods",

year = "2004",

doi = "10.1021/la049571l",

language = "English",

volume = "20",

pages = "5662--5665",

journal = "Langmuir",

issn = "0743-7463",

publisher = "American Chemical Society",

number = "14",

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T1 - Depletion potentials induced by charged colloidal rods

AU - Helden, L.

AU - Koenderink, G.H.

AU - Leiderer, P.

AU - Bechinger, C.

N1 - Depletion potentials induced by charged colloidal rods

PY - 2004

Y1 - 2004

N2 - We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indicating correlation effects between the rods.

AB - We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indicating correlation effects between the rods.

U2 - 10.1021/la049571l

DO - 10.1021/la049571l

M3 - Article

VL - 20

SP - 5662

EP - 5665

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 14

ER -

Depletion potentials induced by charged colloidal rods

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