How Marine diatom Inspired Nanofabrication Templates

Various Bacillariophyta · Protist · Ocean and freshwater surfaces worldwide

What if the solution to this engineering challenge had already been perfected — by a marine diatom over 100 million years of evolution?

The Natural Innovation

Single-celled algae build intricate silica shells (frustules) with species-specific nanoscale pore patterns — achieving maximum mechanical strength with minimum material, self-assembling at room temperature from dissolved silicon

The marine diatom lives in Ocean and freshwater surfaces worldwide.

In the language of biomimicry, this falls under the Make › Use templates category.

The Design Principle

Genetically encoded self-assembly produces hierarchical nano-to-micro porous silica structures with optical and mechanical properties that top-down nanofabrication struggles to replicate

Human Applications

Nanofabrication templates for photonic devices, drug delivery microparticles with controlled pore size, ultralight structural materials, solar cell light trapping layers

Real-world implementations include: Diatomite filtration media (commercial); Oregon State University diatom-templated lithium-ion battery anodes; photonic diatom research at multiple labs.

Source: AskNature.org