nasturtium leaf

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Multimedia Zoom Into a Nasturtium Leaf

In this interactive piece, visitors can zoom into the structures on the surface of a nasturtium leaf. Electron micrographs reveal the nanoscale structures that make water bead on the surface of the leaf. Zoom Into a Nasturtium Leaf can be used alone, or to accompany an exhibit or demonstration of the lotus effect, in which water beads and rolls off highly water-repellent leaves. You must follow the instructions included with the files to install the Adobe Air application! Please "Download All Files" in the zip file and read the instructions first. The resource tab links...

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Scientific Image - Water Droplet on a Nasturtium Leaf

The Lotus Effect describes water droplets rolling off leaf surfaces, removing dirt and contaminants in the process. This phenomenon can also be seen in the more common nasturtium. Scanning electron microscope images show that nasturtium leaves are covered by waxy nanocrystal bundles. The uneven surface created by these tiny structures traps air between water and leaf, causing the water to roll off. Research on such nanoscale effects has inspired revolutionary new materials, including water- and stain-resistant fabrics.

• IMAGING TOOL: Optical microscope

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Scientific Image - Nasturtium Leaf

The Lotus Effect describes water droplets rolling off leaf surfaces, removing dirt and contaminants in the process. This phenomenon can also be seen in the more common nasturtium. Scanning electron microscope images show that nasturtium leaves are covered by waxy nanocrystal bundles. The uneven surface created by these tiny structures traps air between water and leaf, causing the water to roll off. Research on such nanoscale effects has inspired revolutionary new materials, including water- and stain-resistant fabrics.

• SIZE: Each wax nanocrystal bundle is about 1-2 µm wide....

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Scientific Image - Nasturtium Leaf

The Lotus Effect describes water droplets rolling off leaf surfaces, removing dirt and contaminants in the process. This phenomenon can also be seen in the more common nasturtium. Scanning electron microscope images show that nasturtium leaves are covered by waxy nanocrystal bundles. The uneven surface created by these tiny structures traps air between water and leaf, causing the water to roll off. Research on such nanoscale effects has inspired revolutionary new materials, including water- and stain-resistant fabrics.

• SIZE: The wax nanocrystal bundles covering the leaf are each...

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Scientific Image - Nasturtium Leaf

The Lotus Effect describes water droplets rolling off leaf surfaces, removing dirt and contaminants in the process. This phenomenon can also be seen in the more common nasturtium. Scanning electron microscope images show that nasturtium leaves are covered by waxy nanocrystal bundles. The uneven surface created by these tiny structures traps air between water and leaf, causing the water to roll off. Research on such nanoscale effects has inspired revolutionary new materials, including water- and stain-resistant fabrics.

• SIZE: The veins form sections on the leaf. The average size...

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Scientific Image - Nasturtium Leaf

The Lotus Effect describes water droplets rolling off leaf surfaces, removing dirt and contaminants in the process. This phenomenon can also be seen in the more common nasturtium. Scanning electron microscope images show that nasturtium leaves are covered by waxy nanocrystal bundles. The uneven surface created by these tiny structures traps air between water and leaf, causing the water to roll off. Research on such nanoscale effects has inspired revolutionary new materials, including water- and stain-resistant fabrics.

• SIZE: The size of each leaf is about 6-10 cm.

•...

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Spiral Zoom Nasturtium Leaf 2009 Formative Evaluation

This formative evaluation was conducted to see how the addition of an interactive media piece enhanced visitors' understanding of Nasturtium, a life sciences exhibit that demonstrates the water repelling properties of nasturtium leaves. The media piece allows the visitor to view leaf structures at progressively higher magnifications to better illustrate their scale and function.

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