Tech
- Tech
Stepping Lightly: New view of how human gaits conserve energy
Using a simple mathematical model, scientists may have pinpointed the key aspects of human locomotion that make ordinary walking and running the most energy-efficient ways for people to get around on foot.
- Tech
Electronics Gets Y’s: Nanotubes branch out as novel transistors
Y-shaped nanotubes might become a common component in ultrasmall electronic circuitry.
- Tech
Body-fluid battery
A battery that's activated by body fluids such as saliva or urine may one day power devices ranging from disposable home health-care testing kits to emergency radio transmitters that turn on with a lick.
- Tech
Wings warp for birdlike agility
An easily maneuverable, bird-size airplane whose wings can change shape in flight may be able to carry out a variety of assignments in tight spots.
- Tech
Roughing up counterfeiters
A new anticounterfeiting scheme generates unique, reproducible identity codes that could be used to authenticate passports, credit cards, and other items on the basis of inherent, microscopic irregularities in the items' surfaces.
- Tech
Electronic Leap: Plastic component may lead to ubiquitous radio tags
Tiny radio circuits cheap enough to be embedded into countless products have moved closer to reality with the development of a fast, plastic semiconductor diode.
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Speed Reader: Gene sequencing gets a boost
The first lab-ready technology to challenge the dominant gene-sequencing technique known as the Sanger method taps miniaturization and parallel reading of hundreds of thousands of DNA stretches to boost speed and slash cost.
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Easy Striders
New robots based on the mechanics of human walking use less energy and move more naturally than traditional bipedal robots do, suggesting new ways to approach two-legged robots and prosthetic design.
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Tapping Tiny Pores: Nanovalves control chemical releases
After creating arrays of nanovalves, each made from a single molecule, chemists used them to generate minuscule chemical discharges.
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Wiring up molecules
Minuscule gaps of controlled sizes in gold microwires may serve as test sites for probing properties of specks of material as small as a single molecule and as a basis for novel sensors and circuit components.
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A nanoprinter for cheaper diagnostics
Using strands of DNA as movable type, scientists have created a miniaturized printing technique for mass-producing medical diagnostic chips.
- Tech
Sensor measures mass of one DNA molecule
A new biosensor that can detect the mass of a single DNA molecule could lead to faster and more accurate screening for HIV infection, cancer, and other diseases.
