Multifunctional surface structures of plants: An inspiration for biomimetics

Koch, Kerstin; Bhushan, Bharat; Barthlott, Wilhelm

doi:10.1016/j.pmatsci.2008.07.003

Cited by 795 publications

(644 citation statements)

References 128 publications

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“…Some leaves of water-repellent plants, such as N. nucifera (lotus) and C. esculenta, are known to be superhydrophobic and self-cleaning due to hierarchical roughness (microbumps superimposed with nanostructure) and the presence of a hydrophobic coating (Bhushan & Jung 2008;Koch et al 2008Koch et al , 2009Nosonovsky & Bhushan 2008a-c). Roughness-induced superhydrophobic and self-cleaning surfaces are of interest in various applications, including self-cleaning windows, windshields and exterior paints for buildings, boats, ships and aircraft, utensils, roof tiles, textiles, solar panels and applications requiring antifouling and a reduction of drag in fluid flow, e.g.…”

Section: Superhydrophobicity Self-cleaning and Low Adhesionmentioning

confidence: 99%

“…Thus, a hierarchical structure is required to resist these scaledependent mechanisms and enlarge the liquid-air interface, resulting in a high static contact angle and low CAH. It has been reported that all superhydrophobic and self-cleaning leaves consist of an intrinsic hierarchical structure Koch et al 2008Koch et al , 2009, in press a). Based on this lesson from nature, one of the ways to increase the hydrophobic property of the surface is to increase surface roughness; so roughnessinduced hydrophobicity has become a subject of extensive investigations.…”

Section: Superhydrophobicity Self-cleaning and Low Adhesionmentioning

confidence: 99%

“…Some of the hairs form hooks for climbing purposes. On climbing kidney shoots, (Phaseolus vulgaris) hairs form hooks (figure 12a), and in Cynoglossum officinale (figure 12b), the hairs have lateral barbed hooks for seed dispersal (Wagner et al 2004;Koch et al 2009). …”

Section: Hair With Hooksmentioning

confidence: 99%

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Biomimetics: lessons from nature–an overview

Bhushan

2009

Phil. Trans. R. Soc. A.

Self Cite

1,107

733

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Nature has developed materials, objects and processes that function from the macroscale to the nanoscale. These have gone through evolution over 3.8 Gyr. The emerging field of biomimetics allows one to mimic biology or nature to develop nanomaterials, nanodevices and processes. Properties of biological materials and surfaces result from a complex interplay between surface morphology and physical and chemical properties. Hierarchical structures with dimensions of features ranging from the macroscale to the nanoscale are extremely common in nature to provide properties of interest. Molecularscale devices, superhydrophobicity, self-cleaning, drag reduction in fluid flow, energy conversion and conservation, high adhesion, reversible adhesion, aerodynamic lift, materials and fibres with high mechanical strength, biological self-assembly, antireflection, structural coloration, thermal insulation, self-healing and sensory-aid mechanisms are some of the examples found in nature that are of commercial interest. This paper provides a broad overview of the various objects and processes of interest found in nature and applications under development or available in the marketplace.

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Section: Superhydrophobicity Self-cleaning and Low Adhesionmentioning

confidence: 99%

Section: Superhydrophobicity Self-cleaning and Low Adhesionmentioning

confidence: 99%

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Biomimetics: lessons from nature–an overview

Bhushan

2009

Phil. Trans. R. Soc. A.

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1,107

733

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“…Las observaciones fueron hechas en un MEB Hitachi S-2460 N (Hitachi, Tokio, Japón) a 10 KV. Se identificaron los tipos de tricomas de acuerdo con la propuesta de Jeffrey (1987), complementada con términos propuestos por Koch et al (2009) para la ornamentación y Barthlott et al (1998) para las ceras.…”

Section: Muestras Analizadas Estadounclassified

Tricomas foliares en Senecio sección Mulgediifolii (Senecioneae, Asteraceae)

2017

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Antecedentes y Objetivos: Se realizó un estudio del complemento de tricomas en las hojas de Senecio sección Mulgediifolii utilizando microscopía de luz y microscopía electrónica de barrido, con el propósito de determinar caracteres que faciliten la identificación de sus especies.Métodos: Se estudió el tercio medio de la lámina de hojas recolectadas en campo o tomadas de ejemplares de herbario. El material proveniente de herbario se hidrató en agua hirviendo y se aclaró con hidrato de cloral por varios días; el material recolectado en campo se fijó con FAA y posteriormente se conservó en alcohol etílico a 70%. Con ambos tipos de materiales se hicieron cortes transversales a mano alzada y se montaron en gelatina glicerinada. El material observado en el microscopio electrónico de barrido fue deshidratado, se llevó a punto crítico y se cubrió con polvo de oro.Resultados clave: Todas las especies de la sección presentan tricomas multicelulares uniseriados, los cuales pueden ser glandulares o no glandulares. Se identificaron seis tipos básicos de tricomas y dos subtipos, los cuales variaron de acuerdo con su posición en la lámina, con diferencias tanto en ornamentación como en depósitos de cera. Dos tipos de tricomas y una variante fueron distintivos de algunas especies; por ejemplo, la variante 2a1 es característica de Senecio jacalensis y está presente en ambas superficies foliares, el tricoma 3d se encuentra solamente en la vena media de la superficie abaxial de S. polypodioides y el tricoma 4a solamente se localiza en el margen foliar de S. roseus.Conclusiones: La combinación de caracteres, como los tipos de tricomas, su ornamentación y la presencia de cera, pueden ser útiles para diferenciar las especies de Senecio sección Mulgediifolii.

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“…The leaves of the lotus plant are known to be superhydrophobic and self-cleaning because of their unique surface structure (Cheng 2006). Some structured superhydrophobic plant surfaces entrap a thin layer of air that enables them, as well as replicas of their surfaces, to stay dry under water for several days (Koch et al 2009). Synthetic nano-engineered superhydrophobic surfaces that retain a layer of air have been investigated for their potential marine fouling resistance properties (Scardino et al 2009b).…”

Section: (B) Surface Energymentioning

confidence: 99%

Designing biomimetic antifouling surfaces

Salta

Wharton

Stoodley

et al. 2010

Phil. Trans. R. Soc. A.

177

118

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Marine biofouling is the accumulation of biological material on underwater surfaces, which has plagued both commercial and naval fleets. Biomimetic approaches may well provide new insights into designing and developing alternative, non-toxic, surfaceactive antifouling (AF) technologies. In the marine environment, all submerged surfaces are affected by the attachment of fouling organisms, such as bacteria, diatoms, algae and invertebrates, causing increased hydrodynamic drag, resulting in increased fuel consumption, and decreased speed and operational range. There are also additional expenses of dry-docking, together with increased fuel costs and corrosion, which are all important economic factors that demand the prevention of biofouling. Past solutions to AF have generally used toxic paints or coatings that have had a detrimental effect on marine life worldwide. The prohibited use of these antifoulants has led to the search for biologically inspired AF strategies. This review will explore the natural and biomimetic AF surface strategies for marine systems.

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Multifunctional surface structures of plants: An inspiration for biomimetics

Cited by 795 publications

References 128 publications

Biomimetics: lessons from nature–an overview

Biomimetics: lessons from nature–an overview

Tricomas foliares en Senecio sección Mulgediifolii (Senecioneae, Asteraceae)

Designing biomimetic antifouling surfaces

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