Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Modeling single-molecule stretching experiments using statistical thermodynamics

Journal Article · · Physical Review. E

Single-molecule stretching experiments are widely utilized within the fields of physics and chemistry to characterize the mechanics of individual bonds or molecules, as well as chemical reactions. Analytic relations describing these experiments are valuable, and these relations can be obtained through the statistical thermodynamics of idealized model systems representing the experiments. Since the specific thermodynamic ensembles manifested by the experiments affect the outcome, primarily for small molecules, the stretching device must be included in the idealized model system. Though the model for the stretched molecule might be exactly solvable, including the device in the model often prevents analytic solutions. In the limit of large or small device stiffness, the isometric or isotensional ensembles can provide effective approximations, but the device effects are missing. Here a dual set of asymptotically correct statistical thermodynamic theories are applied to develop accurate approximations for the full model system that includes both the molecule and the device. In conclusion, the asymptotic theories are first demonstrated to be accurate using the freely jointed chain model and then using molecular dynamics calculations of a single polyethylene chain.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
NA0003525
OSTI ID:
2311285
Report Number(s):
SAND--2024-00081J
Journal Information:
Physical Review. E, Journal Name: Physical Review. E Journal Issue: 6 Vol. 108; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (65)

Experimental Polymer Mechanochemistry and its Interpretational Frameworks journal March 2017
Methods for Exerting and Sensing Force in Polymer Materials Using Mechanophores journal January 2020
Polymer mechanochemistry: the design and study of mechanophores: Polymer mechanochemistry journal September 2012
Stretching a Macromolecule in an Atomic Force Microscope: Statistical Mechanical Analysis journal June 2001
On the Precise Meaning of Extension in the Interpretation of Polymer-Chain Stretching Experiments journal November 2003
A Temperature-Jump Optical Trap for Single-Molecule Manipulation journal June 2015
Synthesis and anticorrosive properties of epoxy polymer for CS in [1 M] HCl solution: Electrochemical, AFM, DFT and MD simulations journal February 2021
LAMMPS - a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales journal February 2022
Chain breaking in the statistical mechanical constitutive theory of polymer networks journal November 2021
A statistical mechanics framework for polymer chain scission, based on the concepts of distorted bond potential and asymptotic matching journal May 2023
On the equivalence of thermodynamics ensembles for flexible polymer chains journal February 2014
Polymer single chain imaging, molecular forces, and nanoscale processes by Atomic Force Microscopy: The ultimate proof of the macromolecular hypothesis journal May 2020
Probing of miniPEGγ-PNA–DNA Hybrid Duplex Stability with AFM Force Spectroscopy journal March 2016
Tuning the Mechanical Properties of Metallopolymers via Ligand Interactions: A Combined Experimental and Theoretical Study journal March 2020
Mechanochemistry: A Force of Synthesis journal December 2016
Single Molecule Study of Force-Induced Rotation of Carbon–Carbon Double Bonds in Polymers journal November 2016
Force-Rate Characterization of Two Spiropyran-Based Molecular Force Probes journal May 2015
Substituent Effects and Mechanism in a Mechanochemical Reaction journal September 2018
Spatially Selective and Density-Controlled Activation of Interfacial Mechanophores journal February 2019
Enabling Room-Temperature Mechanochromic Activation in a Glassy Polymer: Synthesis and Characterization of Spiropyran Polycarbonate journal June 2019
Application of the ReaxFF Reactive Force Field to Reactive Dynamics of Hydrocarbon Chemisorption and Decomposition journal January 2010
Characterization of Single- and Double-Stranded DNA on Gold Surfaces journal November 2004
Entropic Elasticity of Single Polymer Chains of Poly(methacrylic acid) Measured by Atomic Force Microscopy journal February 1999
Mechanochemistry: One Bond at a Time journal June 2009
A revolution in optical manipulation journal August 2003
Inducing and quantifying forbidden reactivity with single-molecule polymer mechanochemistry journal February 2015
Multi-modal mechanophores based on cinnamate dimers journal October 2017
Steering chemical reactions with force journal November 2017
The many flavours of mechanochemistry and its plausible conceptual underpinnings journal February 2021
The role of polymer mechanochemistry in responsive materials and additive manufacturing journal October 2020
Unveiling the influence of device stiffness in single macromolecule unfolding journal March 2019
Optical tweezers in single-molecule biophysics journal March 2021
From molecular mechanochemistry to stress-responsive materials journal January 2011
Inequivalence of fixed-force and fixed-extension statistical ensembles for a flexible polymer tethered to a planar substrate journal January 2018
The influence of device handles in single-molecule experiments journal January 2019
Mechanochemical tools for polymer materials journal January 2021
Force-mediated molecule release from double network hydrogels journal January 2021
Novel optical approach to atomic force microscopy journal September 1988
High‐Temperature Equation of State by a Perturbation Method. I. Nonpolar Gases journal August 1954
Theory, analysis, and interpretation of single-molecule force spectroscopy experiments journal October 2008
Rate-dependent force–extension models for single-molecule force spectroscopy experiments journal August 2020
Roadmap for optical tweezers journal April 2023
Polymer Physics book June 2003
Statistical mechanical constitutive theory of polymer networks: The inextricable links between distribution, behavior, and ensemble journal July 2020
Freely jointed chain models with extensible links journal August 2022
Inequivalence of statistical ensembles in single molecule measurements journal February 2005
Ensemble inequivalence in single-molecule experiments journal May 2009
Dissociation rates from single-molecule pulling experiments under large thermal fluctuations or large applied force journal April 2017
Isotensional and isometric force-extension response of chains with bistable units and Ising interactions journal November 2018
Acceleration and Trapping of Particles by Radiation Pressure journal January 1970
Atomic-Beam Deflection by Resonance-Radiation Pressure journal November 1970
Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure journal July 1985
Atomic Force Microscope journal March 1986
Experimental Observation of Optically Trapped Atoms journal July 1986
Advances in atomic force microscopy journal July 2003
Direct Measurement of the Full, Sequence-Dependent Folding Landscape of a Nucleic Acid journal November 2006
Overstretching B-DNA: The Elastic Response of Individual Double-Stranded and Single-Stranded DNA Molecules journal February 1996
Single-Molecule Biomechanics with Optical Methods journal March 1999
Optical trapping and manipulation of viruses and bacteria journal March 1987
Direct measurement of the forces between complementary strands of DNA journal November 1994
Adhesion forces between individual ligand-receptor pairs journal April 1994
Single-Molecule Studies of Protein Folding with Optical Tweezers journal June 2020
Reconstructing Folding Energy Landscapes by Single-Molecule Force Spectroscopy journal May 2014
Probing the Relation Between Force—Lifetime—and Chemistry in Single Molecular Bonds journal June 2001
Optical tweezers — from calibration to applications: a tutorial journal March 2021

Similar Records

Freely jointed chain models with extensible links
Journal Article · Mon Aug 15 00:00:00 EDT 2022 · Physical Review. E · OSTI ID:1887403

An asymptotic approach for the statistical thermodynamics of certain model systems
Conference · Tue Feb 28 23:00:00 EST 2023 · OSTI ID:2431858

Integral equation theory of homopolymer melts
Conference · Wed Dec 31 23:00:00 EST 1986 · OSTI ID:5682689