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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...

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Updated: May 28, 2026

Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging
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Published on: July 19, 2016

Biopolymers in Nanocoating: Principles and Applications.

Vimala S K Bharathi1, Digvir S Jayas1,2

  • 1Office of the President, University of Lethbridge, 4401 University Drive West, Lethbridge, AB T1K 3M4, Canada.

Foods (Basel, Switzerland)
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PubMed
Summary

Biopolymer nanocoatings offer a safe, sustainable alternative to synthetic coatings for food preservation and packaging. Research highlights their potential to extend shelf life and enhance food safety, though challenges remain.

Keywords:
antimicrobialbiopolymerscellulose nanomaterialschitosanedible coatingfood packagingfood safetynanocoatingshelf life

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Area of Science:

  • Food Science and Technology
  • Materials Science
  • Biotechnology

Background:

  • Nanocoating technology enhances food materials, packaging, and contact surfaces.
  • Inorganic nanomaterials face toxicity and regulatory hurdles for food contact.
  • Biopolymers offer a biodegradable, biocompatible, and Generally Recognized as Safe (GRAS) alternative.

Purpose of the Study:

  • To review the application of biopolymer-based nanocoatings in the food sector.
  • To explore their use in edible coatings, packaging materials, and food contact surfaces.
  • To discuss challenges and future research directions for biopolymer nanocoatings.

Main Methods:

  • Literature review of biopolymer nanocoating applications in the food industry.
  • Analysis of studies on inorganic versus biopolymer nanomaterials.
  • Evaluation of key application areas and performance metrics.

Main Results:

  • Biopolymer nanocoatings (chitosan, cellulose nanofibers, alginate) extend shelf life, reduce weight loss, and maintain quality.
  • Nanocoatings improve barrier, mechanical, and antimicrobial properties of packaging.
  • Migration of nanomaterials into food is a significant safety concern.

Conclusions:

  • Biopolymer nanocoatings are promising for food preservation and packaging.
  • Addressing safety concerns (migration) and technical challenges (scalability, durability) is crucial.
  • Standardized protocols and regulatory frameworks are needed for wider adoption.