Biomimicry
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Learning Anti-microbial Nanoscale Physics From Cicada

Learning Anti-microbial Nanoscale Physics From Cicada | Biomimicry | Scoop.it

"The spread of antimicrobial resistance with the emergence of 'super-bugs' that resist even 'last-resort' antibiotics has prompted the World Health Organisation (WHO) to formally tackle the problem of an unwanted post-antibiotic era. [...] A notable solution is provided by an unlikely source - the cicada.The wings of this small fly display bactericidal nanoscale pillar structures. Each of these pillars is a pike of several tens of nanometers in diameter and is separated from other pikes at regular nanometer intervals. Densely packed on the wing surfaces, these pillars arrange into nanopatterns which pierce the membranes of bacterial cells on contact, tearing bacteria apart. Inspired by this example, a research team from NPL and the School of Oral and Dental Sciences at the University of Bristol engineered biocompatible surfaces exhibiting nanowire arrays."

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Cicada Wing Surface Biomimicry Could Lead to Anti-bacterial Surfaces

Cicada Wing Surface Biomimicry Could Lead to Anti-bacterial Surfaces | Biomimicry | Scoop.it

"An international research group of researchers Australia's Swinburne University of Technology and Spain’s Universitat Rovira i Virgili investigated cicada insect and came up with a discovery that may lead to a surface able to destroy bacteria solely through its physical structure."

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Laurence's curator insight, March 12, 2013 8:41 AM

"...Une découverte qui pourrait déboucher sur un revêtement auto-destructeur de bactéries, de part sa seule structure physique ...des tests confirment toutefois que le système de défense sous forme de nanopiliers de la cigale, n'est vraiment efficace que contre les bactéries à membrane suffisamment souple..."

Si ces recherches aboutissent, imaginons les applications : poignées de porte, écrans tactiles, combiné de téléphone, sièges dans les transports publics et, pourquoi pas, emballage alimentaire ...? les bactéries sont partout !