Force spectrum of a few chains grafted on an AFM tip: Comparison of the experiment to a self-consistent mean field theory simulation

Tao Wang; Jiajing Xu; Feng Qiu; Hongdong Zhang; Yuliang Yang

doi:10.1016/j.polymer.2007.07.066

Force spectrum of a few chains grafted on an AFM tip: Comparison of the experiment to a self-consistent mean field theory simulation

Tao Wang
, Jiajing Xu
, Feng Qiu^*
, Hongdong Zhang
, Yuliang Yang

^*Corresponding author for this work

Ministry of Education in China

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A simulation model based on self-consistent mean field theory (SCMFT) has been developed to inspect the approaching process of the polymer chain grafted AFM tip to a substrate. The effects of various controlling parameters, such as grafting position, chain number, chain length, as well as solvent- and substrate-chain interactions, on the force curve were investigated. Real force spectroscopy of AFM tips modified by poly(ethylene glycol) (PEG) chains interacting with the fresh mica has been recorded, and several typical types of the force curves that correspond to the different states of the grafting chain were assorted. The simulations fit the experimental results well, providing a strong support to the model.

Original language	English
Pages (from-to)	6170-6179
Number of pages	10
Journal	Polymer
Volume	48
Issue number	20
DOIs	https://doi.org/10.1016/j.polymer.2007.07.066
Publication status	Published - 21 Sept 2007
Externally published	Yes

Keywords

Atomic force microscopy
Force curve
Self-consistent mean field theory

Access to Document

10.1016/j.polymer.2007.07.066

Cite this

@article{092e8f8451b047339ec243c109ee6c93,

title = "Force spectrum of a few chains grafted on an AFM tip: Comparison of the experiment to a self-consistent mean field theory simulation",

abstract = "A simulation model based on self-consistent mean field theory (SCMFT) has been developed to inspect the approaching process of the polymer chain grafted AFM tip to a substrate. The effects of various controlling parameters, such as grafting position, chain number, chain length, as well as solvent- and substrate-chain interactions, on the force curve were investigated. Real force spectroscopy of AFM tips modified by poly(ethylene glycol) (PEG) chains interacting with the fresh mica has been recorded, and several typical types of the force curves that correspond to the different states of the grafting chain were assorted. The simulations fit the experimental results well, providing a strong support to the model.",

keywords = "Atomic force microscopy, Force curve, Self-consistent mean field theory",

author = "Tao Wang and Jiajing Xu and Feng Qiu and Hongdong Zhang and Yuliang Yang",

year = "2007",

month = sep,

day = "21",

doi = "10.1016/j.polymer.2007.07.066",

language = "English",

volume = "48",

pages = "6170--6179",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

number = "20",

}

TY - JOUR

T1 - Force spectrum of a few chains grafted on an AFM tip

T2 - Comparison of the experiment to a self-consistent mean field theory simulation

AU - Wang, Tao

AU - Xu, Jiajing

AU - Qiu, Feng

AU - Zhang, Hongdong

AU - Yang, Yuliang

PY - 2007/9/21

Y1 - 2007/9/21

N2 - A simulation model based on self-consistent mean field theory (SCMFT) has been developed to inspect the approaching process of the polymer chain grafted AFM tip to a substrate. The effects of various controlling parameters, such as grafting position, chain number, chain length, as well as solvent- and substrate-chain interactions, on the force curve were investigated. Real force spectroscopy of AFM tips modified by poly(ethylene glycol) (PEG) chains interacting with the fresh mica has been recorded, and several typical types of the force curves that correspond to the different states of the grafting chain were assorted. The simulations fit the experimental results well, providing a strong support to the model.

AB - A simulation model based on self-consistent mean field theory (SCMFT) has been developed to inspect the approaching process of the polymer chain grafted AFM tip to a substrate. The effects of various controlling parameters, such as grafting position, chain number, chain length, as well as solvent- and substrate-chain interactions, on the force curve were investigated. Real force spectroscopy of AFM tips modified by poly(ethylene glycol) (PEG) chains interacting with the fresh mica has been recorded, and several typical types of the force curves that correspond to the different states of the grafting chain were assorted. The simulations fit the experimental results well, providing a strong support to the model.

KW - Atomic force microscopy

KW - Force curve

KW - Self-consistent mean field theory

UR - https://www.scopus.com/pages/publications/34548511554

U2 - 10.1016/j.polymer.2007.07.066

DO - 10.1016/j.polymer.2007.07.066

M3 - Article

AN - SCOPUS:34548511554

SN - 0032-3861

VL - 48

SP - 6170

EP - 6179

JO - Polymer

JF - Polymer

IS - 20

ER -

Force spectrum of a few chains grafted on an AFM tip: Comparison of the experiment to a self-consistent mean field theory simulation

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this