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Related Experiment Video

Updated: May 12, 2026

Covalent Immobilization of Proteins for the Single Molecule Force Spectroscopy
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Covalent Immobilization of Proteins for the Single Molecule Force Spectroscopy

Published on: August 20, 2018

Silanes to Silatranes: Robust Functionalization for Single-Molecule Force Spectroscopy.

Thomas D Courtney1, Christopher B Hatchell1, Xuliana O1

  • 1Department of Chemistry, Clemson University, Clemson, South Carolina, USA.

Chembiochem : a European Journal of Chemical Biology
|May 10, 2026
PubMed
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See all related articles

A new ethanol-based aminopropyl-silatrane method enhances atomic force microscopy single-molecule force spectroscopy (SMFS) by improving data yield. This reliable, reusable protocol offers superior performance for cantilever and surface functionalization in SMFS experiments.

Area of Science:

  • Biophysics
  • Materials Science
  • Surface Chemistry

Background:

  • Atomic force microscopy-based single-molecule force spectroscopy (SMFS) requires stable and reproducible cantilever and surface functionalization.
  • Conventional silane-based methods exhibit poor stability, limiting reproducibility and performance.

Purpose of the Study:

  • To develop a superior functionalization protocol for SMFS experiments.
  • To improve the reliability, reusability, and performance of cantilever and surface functionalization.

Main Methods:

  • An ethanol-based aminopropyl-silatrane functionalization protocol was developed.
  • This method was applied to silicon-nitride and glass cantilevers and surfaces.
  • A cost-efficient cleaning method using common solvents and UV-ozone treatment was demonstrated for refunctionalization.
Keywords:
aminopropyl‐silatraneforce spectroscopysingle‐molecule biophysicssurface chemistry

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Investigating Single Molecule Adhesion by Atomic Force Spectroscopy
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Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Published on: February 27, 2015

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Last Updated: May 12, 2026

Covalent Immobilization of Proteins for the Single Molecule Force Spectroscopy
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Covalent Immobilization of Proteins for the Single Molecule Force Spectroscopy

Published on: August 20, 2018

Insights into the Interactions of Amino Acids and Peptides with Inorganic Materials Using Single-Molecule Force Spectroscopy
05:44

Insights into the Interactions of Amino Acids and Peptides with Inorganic Materials Using Single-Molecule Force Spectroscopy

Published on: March 6, 2017

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy
09:48

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Published on: February 27, 2015

Main Results:

  • The new protocol demonstrated superior performance compared to conventional methods.
  • A twofold improvement in usable single-molecule data yield was achieved when combined with bacterial adhesin coupling.
  • The method is applicable to various cantilever types, including mechanically modified ones.

Conclusions:

  • The developed aminopropyl-silatrane protocol offers a reliable, reusable, and versatile solution for high-quality SMFS experiments.
  • This approach significantly enhances the efficiency and reproducibility of single-molecule force spectroscopy.
  • The protocol's compatibility with different surfaces and cost-efficient cleaning method contribute to its practical utility.