Biological and biomimetic materials and surfaces

Gorb, Stanislav N.; Speck, Thomas

doi:10.3762/bjnano.8.42

Cited by 11 publications

(7 citation statements)

References 19 publications

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“…Barthlott et al (2009) evidenciaram a importância dos tricomas de Salvinia para a diferenciação sistemática, flutuabilidade vegetal e na hidrofobia das folhas às gotículas de água. Por outro lado, Gorb & Speck (2017), em um estudo de nanotecnologia sobre estruturas de organismos, comentam que não somente as samambaias flutuantes do genero Salvinia, mas também outros organismos flutuantes ou que mergulham (e.g., algumas espécies de aranhas e besouros bem como algumas aves e mamíferos), tipicamente possuem estruturas capilares em dupla face, flexíveis, nas suas superfícies externas que podem aprisionar uma camada de ar sob a água por períodos de vários minutos, dias e mesmo meses. A importância biológica dessas camadas de ar pode ser flutuação, isolamento, suprimento de oxigênio durante o mergulho e/ou fricção-redução durante o mergulho ou natação.…”

Section: Discussionunclassified

Distribuição, Morfologia E Anatomia De Monilófitas (Samambaias) Aquáticas De Pequenas Lagoas Na Área Itaqui-Bacanga, Ilha De São Luís - Ma

Barbieri

Lima

Correia

2020

Bol. Lab. Hidrobiol.

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Foi verificada a distribuição, feita a identificação taxonômica e a caracterização morfológica das espécies de monilófitas (samambaias) aquáticas de quatro lagoas pequenas temporárias e duas perenes localizadas ao longo da estrada que corta o setor industrial da área Itaqui-Bacanga, na ilha de SãoLuís - MA, durante o período de junho a setembro de 2011. As espécies encontradas nos ambientes amostrados foram Salvinia auriculata, Salvinia molesta (Salviniaceae) e Ceratopteris thalictroides (Pteridaceae). As três espécies apresentaram caráter de ocorrência anual e as Salviniaceaeestiveram amplamente distribuídas nos ambientes aquáticos observados. Dentre as monilófitas amostradas, apenas o gênero Salvinia apresenta heterosporia, com a presença de megasporângios e microsporângios. O gênero Ceratopteris, por sua vez, é homosporado, apresentando apenas esporos masculinos, que possuem um potencial para desenvolver gametófitos que futuramente poderão ser masculinos ou hermafroditas. A superfície foliar (tricomas), no caso de Salvinia, e o caule, no caso de Ceratopteris, são importantes estruturas na flutuabilidade das plantas. As três espécies apresentam adaptações morfológicas fundamentais para o seu estabelecimento e desenvolvimento nesses locais.Distribution, morphology and anatomy of aquatic Monilophyta (ferns) in small ponds at the area Itaqui-Bacanga, São Luís Island-MAABSTRACTDistribution, taxonomic identification and morphological analysis of aquatic species of Monilophyta (ferns) were carried out in four perennial and two temporary ponds located along the road through the industrial area Itaqui-Bacanga, at the São Luís Island – MA, from June to September 2011. The species found in the study sites were Salvinia auriculata, Salvinia molesta (Salviniaceae) and Ceratopteris thalictroides (Pteridaceae), all presenting an annual occurrence in nature and Salviniaceae were widely distributed in the ponds observed. Among the monilophytes sampled, only the Salviniagenus shows heterosporia, with the presence of megasporangia and microsporangia. The genus Ceratopteris in turn is homosporate, presenting only male spores, which have a potential to develop gametophytes that in the future may be male or hermaphrodite. The leaf surface (trichomes), in the case of Salvinia, and the stem, in the case of Ceratopteris, are important structures in the buoyancy of plants. The three species show important morphological adaptations for their establishment and development in these places.Keywords: Aquatic euphillophyta; Occurrence; Morphological adaptations; Ponds.

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Section: Discussionunclassified

Distribuição, Morfologia E Anatomia De Monilófitas (Samambaias) Aquáticas De Pequenas Lagoas Na Área Itaqui-Bacanga, Ilha De São Luís - Ma

Barbieri

Lima

Correia

2020

Bol. Lab. Hidrobiol.

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“…Recently, the functional morphology of plants has become key to biomimetic applications. An indication is the increasing numbers of special issues on biomimetics and the number of plant‐based research papers therein (Fratzl et al ., 2016; Gorb & Speck, 2017; Geitmann & Gril, 2018; Bushan, 2019a,b, 2020; Geitmann et al ., 2019; Mazzolai et al ., 2020) and the number of presentations at the Plant Biomechanics Conferences on ‘applied biomechanics’ and ‘biomimetics’ (Fig. S2).…”

Section: Closing Remarks and Future Perspectivesmentioning

confidence: 99%

Functional morphology of plants – a key to biomimetic applications

Speck

2021

New Phytologist

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“…In static processes, no change is present. Examples include nanostructured textural features of living systems such as waxy surface structures of water lily (Nymphaeaceae) and lotus flower (Nelumbo nucifera) keeping them dry off the water [85,86].…”

Section: Species and Adaptability Layersmentioning

confidence: 99%

A Framework to Achieve Multifunctionality in Biomimetic Adaptive Building Skins

et al. 2020

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Building skins should host multiple functions for increased performance. Addressing this, their design can benefit by learning from nature to achieve multifunctionality, where multifunctional strategies have evolved over years. However, existing frameworks to develop biomimetic adaptive building skins (Bio-ABS) have limited capabilities transferring multifunctionality from nature into designs. This study shows that through investigating the principles of hierarchy and heterogeneity, multifunctionality in nature can be transferred into biomimetic strategies. We aim at mapping the existing knowledge in biological adaptations from the perspective of multifunctionality and developing a framework achieving multifunctionality in Bio-ABS. The framework is demonstrated through the case study of Echinocactus grusonii implemented as a Bio-ABS on a digital base-case building. The methods include the Bio-ABS case study demonstrating the framework and simulating the performance of the case study and base-case building to comparatively analyze the results. The outcomes are a framework to develop multifunctional Bio-ABS and simulation results on the performance improvement Bio-ABS offer. The performance comparison between the Bio-ABS and base-case building show that there is a decrease in the discomfort hours by a maximum of 23.18%. In conclusion, translating heterogeneity and hierarchy principles in nature into engineered designs is a key aspect to achieve multifunctionality in Bio-ABS offering improved strategies in performance over conventional buildings.

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Biological and biomimetic materials and surfaces

Cited by 11 publications

References 19 publications

Distribuição, Morfologia E Anatomia De Monilófitas (Samambaias) Aquáticas De Pequenas Lagoas Na Área Itaqui-Bacanga, Ilha De São Luís - Ma

Distribuição, Morfologia E Anatomia De Monilófitas (Samambaias) Aquáticas De Pequenas Lagoas Na Área Itaqui-Bacanga, Ilha De São Luís - Ma

Functional morphology of plants – a key to biomimetic applications

A Framework to Achieve Multifunctionality in Biomimetic Adaptive Building Skins

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