How Basking shark Inspired Water Filtration Membranes
Cetorhinus maximus · Animal · Temperate ocean waters worldwide
What if the solution to passive, clog-resistant filtration had already been perfected — by a basking shark over 200 million years of evolution?
The Natural Innovation
The basking shark filter-feeds on plankton by swimming with its mouth open, passing up to 2,000 tonnes of water per hour through gill rakers that capture prey as small as 1.5 mm. The gill raker geometry maximizes surface area for filtration while minimizing drag and clogging.
The basking shark lives in Temperate ocean waters worldwide.
In the language of biomimicry, this falls under the Process › Filter and separate materials category.
The Design Principle
A branching, high-surface-area filter geometry with precisely tuned pore size captures target particles while allowing water to flow through with minimal resistance — passive, clog-resistant filtration.
Human Applications
High-efficiency water filtration membranes and microplastic-capture systems inspired by the gill raker geometry. Also desalination membrane designs.
Real-world implementations include: Biomimetic filtration research at MIT and TU Delft, microplastic filtration mesh concepts.
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A branching, high-surface-area filter geometry with precisely tuned pore size captures target particles while allowing water to flow through with minimal resistance — passive, clog-resistant filtration.
Source: AskNature.org
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