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Making nanostructured materials from maize, milk and malacostraca.

Subramanian Suriyanarayanan1, Ian A Nicholls2

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This study introduces a sustainable method for creating nano-structured biopolymers from renewable sources like maize, milk, and crab shells. These novel materials show promise for advanced applications, including sensitive surface-based diagnostics.

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Area of Science:

  • Materials Science
  • Biotechnology
  • Nanotechnology

Background:

  • Nano-structured materials are vital for numerous applications, including electronics, diagnostics, and energy management.
  • Current fabrication methods often rely heavily on limited natural resources, necessitating sustainable alternatives.
  • Biopolymers offer a renewable feedstock option for advanced material development.

Purpose of the Study:

  • To develop a facile and sustainable strategy for nano-structuring readily available biopolymers.
  • To explore the fabrication of regular hyperporous networks and wire-like nanostructures using biopolymers.
  • To demonstrate the application of these bio-based nanostructures in surface-based sensing.

Main Methods:

  • Utilized biopolymers derived from maize (zein), milk (casein), and crab shells (chitin).
  • Employed sacrificial templates, including self-assembled monodisperse latex beads and anodized aluminum membranes.
  • Fabricated robust surfaces with highly regular hyperporous networks and wire-like morphological features.

Main Results:

  • Successfully produced nano-structured surfaces from zein, casein, and chitin using sacrificial templating.
  • Generated highly regular hyperporous networks and wire-like nanostructures with controlled morphology.
  • Demonstrated a surface-based sensing application using a zein-based hyperporous network with biotin-selective binding sites.

Conclusions:

  • A facile and sustainable method for nano-structuring biopolymers from renewable resources has been established.
  • The developed bio-based nanostructures are suitable for advanced applications, particularly in sensing.
  • This approach offers a promising alternative to conventional nano-structuring techniques, reducing reliance on non-renewable resources.