nanotechnology - biomimetics

Biomimetics

GECKO EFFECT

LOTUS LEAF EFFECT

COLOURS IN BUTTERFLY WINGS.

AREAS OF DISCUSSION

Caused due to Van der Waals force, directional adhesion.

Used for climbing on various surfaces.

No chemical bonding involved.

GECKO EFFECT

DIAGRAMATIC REPRESENTATION

Spatula shaped setae with lamellar surface.

Every sq.mm contains 14,000 setae, each setae is tipped with 100 to 1000 spatulae.

Each setae has diameter of 5µm, each spatula is of o.2µm long.

Phospholipids lubricate the setae to detach before the next step.

Description

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Human hair thickness varies from 18 to 180µm the space which could hold from 12 to1300 setae.

The length of spatula 0.2µm is below the wavelength of visible light.

The setae of a typical mature 70g gecko would be capable of supporting a weight of 133kg. While each spatula exerting an adhesive force of 5 to 25nN.

NOTES;

ROBOTICS

Gecko inspired adhesion (Directional adhesive)

Fumble-free football gloves

High-grip vehicle tires

Training shoes and revolutionary rock climbing aids

ARTIFICIAL ADOPTION

Caused due to Nano-structured papillae present in the leaf.

Phenomenon exhibited – super hydrophobicity.

Used by the plant for self cleaning purpose.

Bio-chemical property is involved.

LOTUS LEAF EFFECT

DIAGRAMATIC REPRESENTATION

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MARITIME INDUSTRY.

TEXTILE INDUSTRY.

PAINT INDUSTRY.

GLASS INDUSTRY.

ELECTRONICS INDUSTRY.

ARTIFICIAL ADOPTION

Principle- Structural coloration.

Color formation without pigmentation.

Also responsible for super hydrophobicity.

COLOURS IN BUTTERFLY WINGS

DIAGRAMATIC REPRESENTATION

GLASS INDUSTRY.

TEXTILE INDUSTRY.

OPTICAL RESEARCH.

ARTIFICIAL ADOPTION

The combination of a butterfly's structural and pigmented colour can create interesting effects. For example, if you saw a butterfly with yellow pigment underneath a structure that creates a blue iridescent colour, you might see a green shade, made by the merging of the two colours. Or depending on your viewpoint, you might see blue, yellow, green or a combination of the three. Your view would change as the butterfly moves its wings and the light enters at different angles.

NOTES ;

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