Single polymer chain rubber elasticity investigated by atomic force microscopy

Nakajima, Ken; Watabe, Hiroyuki; Nishi, Toshio

doi:10.1016/j.polymer.2005.12.092

Cited by 45 publications

(39 citation statements)

References 28 publications

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“…The corresponding forceextension curve obtained from the deflection during a stretching experiment gave a nice fit to the wormlike chain model, from which a contour length of 271.7 nm and a persistence length of 0.262 nm were calculated. Nakajima et al (23) also performed direct force-distance measurements on the same system, dividing the z-piezo displacement into two quantities, cantilever deflection and polymer extension length. A typical forceextension curve measured in cyclohexane is shown in Figure 6.…”

Section: H Wei and T G M Van De Venmentioning

confidence: 99%

“…The solvent temperature was about 358C. The solid curve shows best fit to the worm-like chain (WCL) model (23). (Reproduced with permission).…”

Section: H Wei and T G M Van De Venmentioning

confidence: 99%

“…In the past decade, AFM-based mechanical stretching experiments on single biomolecules and synthesized polymers, so-called AFM-based single molecule force spectroscopy (AFM-based SMFS) (16), has been extensively performed by various researchers, who achieved great success in the clarification of the mechanical and structural properties of single polymer chains, such as adsorption of polyelectrolyte (17) and poly(ferrocenylsilane) chains to gold surfaces (18); adsorption of polyacrylamide at the mica-water interface (3,19,20); elasticity studies of poly(azobenzene-peptides) (21), poly (methacrylic acid) (22), and a single polystyrene chain in a Q solvent (cyclohexane) (23); measurements of the friction coefficient of individual polymers adsorbed onto a solid support (24); conformational transition of carboxymethyl amylase (25); force-induced conformational transitions of single polysaccharide molecules (26); and solvent effects on the statistical properties of single polymer chains (27).…”

Section: Introductionmentioning

confidence: 99%

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AFM‐Based Single Molecule Force Spectroscopy of Polymer Chains: Theoretical Models and Applications

Wei

Ven

2008

Applied Spectroscopy Reviews

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In recent years, remarkable advances in research of the mechanical and structural properties of single polymer chains have been achieved thanks to atomic force microscope (AFM)-based single molecule force spectroscopy (SMFS). This technique offers great possibilities to investigate the mechanical properties of a single polymer chain by static/dynamic force-extension measurements at the mesoscale level. Data are analyzed with the help of appropriate theoretical models, such as statistical mechanics models for freely jointed chains (FJC) or worm-like chains (WLC), which can well describe the moderate entropy-controlled stretch of most polymers, and with semiclassical models, which are being modified using quantum mechanics principles to account for entropic and enthalpic contributions to stretching in the high-force Hookean regime. In this article we review the theoretical models of single chain stretching, the latest progress in force-extension measurements by static and dynamic AFM modes for polymer chains dispersed in different solvents and subjected to a force that may induce their conformational transformations, as well as relevant applications.

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Section: H Wei and T G M Van De Venmentioning

confidence: 99%

“…The solvent temperature was about 358C. The solid curve shows best fit to the worm-like chain (WCL) model (23). (Reproduced with permission).…”

Section: H Wei and T G M Van De Venmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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AFM‐Based Single Molecule Force Spectroscopy of Polymer Chains: Theoretical Models and Applications

Wei

Ven

2008

Applied Spectroscopy Reviews

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“…(2)) and the freely rotating chain (FRC) model (Eq. (3)) have attracted more attention than others [2,[5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Modeling single chain elasticity of single-stranded DNA: A comparison of three models

Cui

Lin

2009

Polymer

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“…These measurements revealed strong effects of the crystalline solid substrate on the molecular or segmental mobility at a distance of ≤ 120 nm. Evidently, the ultimate reduction of scale for the rheological measurements is the study of single macromolecules [Sakai et al, 2002;Nakajima et al, 2006;Watabe et al, 2006], discussed authoritatively by Nakajima and Nishi in Chapter 3.…”

Section: Introductionmentioning

confidence: 99%