Image

Scientific Image - Multiwalled Carbon Nanotube Yarn

This scanning electron microscope image shows nanotube yarn fibers drawn from a "nanotube forest." Nanometer and micron-sized yarn or fibers drawn from multiwalled carbon nanotubes can have tensile strengths comparable to or exceeding those of spider silk. Replacing metal wires in electronic textiles with these nanotube yarns could lead to important new functionalities, such as the ability to actuate (as an artificial muscle) and to store energy (as a fiber super-capacitor or battery).

Scientific Image - Human Venule

This is an optical microscope image of a human venule—a tiny blood vessel.

A venule is tiny blood vessel that connects capillaries—where the blood exchanges the oxygen it carries for carbon dioxide—to larger veins leading back to the heart.

• SIZE: A venule is about 30 µm in diameter.

• IMAGING TOOL: Optical microscope

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