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Bioinspired Pressure Sensitive Adhesives Based on Natural Deep Eutectic Solvents.

Abinaya Arunachalam1, Elise Le Cornec1, Julien Es Sayed2,1

  • 1Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 3, 9747 AG Groningen, The Netherlands.

Macromolecules
|March 2, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel bioinspired pressure sensitive adhesive (PSA) using natural deep eutectic solvents (NaDES) and hyaluronic acid. This sustainable alternative offers tunable adhesion properties for potential industrial applications.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Biomaterials

Background:

  • Petroleum-based pressure sensitive adhesives (PSAs) dominate the industry.
  • There is a growing demand for sustainable, biobased adhesive alternatives.
  • Hyaluronic acid and natural deep eutectic solvents (NaDES) offer unique properties for adhesive formulation.

Purpose of the Study:

  • To develop a novel bioinspired PSA using NaDES and hyaluronic acid.
  • To investigate the role of hyaluronic acid in creating tunable mechanical properties.
  • To explore the potential of these biobased materials as sustainable PSAs.

Main Methods:

  • Formulation of bioinspired adhesives combining NaDES and hyaluronic acid.
  • Characterization of mechanical properties using oscillatory shear measurements.
  • Correlation of predicted adhesive properties with experimental and nonlinear tack measurements.

Main Results:

  • The developed bioinspired PSA exhibits tunable adhesion properties.
  • Hyaluronic acid forms an elastic network within the NaDES matrix, influenced by its molecular weight and concentration.
  • Small amplitude oscillatory shear measurements showed strong correlation with experimental results, though nonlinear tack measurements are recommended for comprehensive analysis.

Conclusions:

  • Bioinspired adhesives combining NaDES and hyaluronic acid demonstrate tunable adhesion.
  • These materials show promise as sustainable alternatives to petroleum-based PSAs.
  • Further research is needed to fully understand and optimize their performance for industrial applications.