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<p>Biomineralization processes rely on well-defined low-dimensional nanostructures to control the properties of the organic, inorganic and metallic crystals that form within them. Polymeric and hybrid nanostructures may be applied to mimic the environmental conditions and gain a powerful set of levers to control the synthesis and movement of crystalline nanomaterials. Self-assembled structures of polystyrene-alt-maleic acid and single atomic layer gold nanosheets are used to direct the growth and movement of 2–3&#xa0;nm gold nanoclusters. The system is found to be stable through freeze-drying and rehydration and to support the directed release of nanoclusters to form higher order structures when differential dehydration of the system motivates water flow through the polymer nanotubes. The combination of stability or dynamism depending on bulk conditions marks this as a promising system for nanoscale additive manufacturing.</p> Graphical abstract <p></p>

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Bioinspired hierarchical additive construction of gold ‘snowflakes’

  • 期刊论文

  • 发表日期：

    2025年2月11日

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  • Matt McTaggart,
  • Nathan Zeeb,
  • Jennifer Snelgrove,
  • Cécile Malardier-Jugroot

摘要

Biomineralization processes rely on well-defined low-dimensional nanostructures to control the properties of the organic, inorganic and metallic crystals that form within them. Polymeric and hybrid nanostructures may be applied to mimic the environmental conditions and gain a powerful set of levers to control the synthesis and movement of crystalline nanomaterials. Self-assembled structures of polystyrene-alt-maleic acid and single atomic layer gold nanosheets are used to direct the growth and movement of 2–3 nm gold nanoclusters. The system is found to be stable through freeze-drying and rehydration and to support the directed release of nanoclusters to form higher order structures when differential dehydration of the system motivates water flow through the polymer nanotubes. The combination of stability or dynamism depending on bulk conditions marks this as a promising system for nanoscale additive manufacturing.

Graphical abstract