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Easy-cleaning surfaces functionalized with an interface-binding recombinant lipase.

Liting Zhang1, Yaofei Sun2, Yibing Wang2

  • 1Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, Hangzhou, 310023, PR China; State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, PR China.

Colloids and Surfaces. B, Biointerfaces
|September 16, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed easy-cleaning cotton fabric using a novel self-assembly coating of cellulose-binding domain (CBD) fused lipase. This green method enhances fabric hydrophobicity and stain resistance, offering a simple solution for functional material development.

Keywords:
Cellulose-binding domainEasy-cleaning surfacesFunctional durabilitySelf-assemblySurface fabrication

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Area of Science:

  • Materials Science
  • Biotechnology
  • Textile Engineering

Background:

  • Surface fabrication is crucial for developing advanced functional materials.
  • Developing easy-cleaning textiles is a significant area of research in material science.
  • Biomolecular self-assembly offers a promising route for novel surface modifications.

Purpose of the Study:

  • To investigate the fabrication of easy-cleaning surfaces using cellulose-binding domain (CBD) fused detergent lipase.
  • To evaluate the self-assembly behavior, hydrophobicity, and stain-removal capabilities of the modified cotton fabric.
  • To assess the stability and recoverability of the functionalized fabric surface.

Main Methods:

  • Conjugating Lipase-A with a cellulose-binding domain (LipA-CBD).
  • Applying LipA-CBD to cotton fabric to induce multi-layer self-assembly.
  • Characterizing surface hydrophobicity using scanning electron microscopy and water contact angle measurements.
  • Evaluating stain removal efficiency through simulated laundering tests.
  • Assessing thermal, sun irradiation, and laundering stability.

Main Results:

  • LipA-CBD formed a multi-layer self-assembled coating on cotton fabric, enhancing hydrophobicity.
  • The modified fabric exhibited effective easy-cleaning functionality against water and lipid-based stains.
  • The self-assembled surface demonstrated good thermal stability, with a half-life of 15 days at 70°C and over 60 days at room temperature.
  • Functionality could be recovered after decreases in stability by re-applying the LipA-CBD coating.

Conclusions:

  • A green, simple, and time-saving method for developing easy-cleaning cotton fabrics was established.
  • Interfacial self-assembly of biomacromolecules provides an effective strategy for functionalizing textile surfaces.
  • The LipA-CBD self-assembly approach offers a sustainable pathway for advanced textile applications.