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Latest PTB Stories

Smallest Biomarkers Tracked Down
2012-11-27 14:44:47

Physikalisch-Technische Bundesanstalt (PTB) PTB and Dectris have developed a vacuum-compatible X-ray detector that allows the size of low-contrast nano-objects to be determined. Microvesicles are smallest cell elements which are present in all body fluids and are different, depending on whether a person is healthy or sick. This could contribute to detecting numerous diseases, such as, e.g., carcinomas, at an early stage, and to treating them more efficiently. The problem is that the...

2012-05-29 10:06:46

Successful test at PTB of optical magnetometer with potential applications in brain imaging for neurological diagnostics and in basic research. In future a new magnetic sensor the size of a sugar cube might simplify the measurement of brain activity. In the magnetically shielded room of Physikalisch-Technische Bundesanstalt (PTB) the sensor has passed an important technical test: Spontaneous as well as stimulated magnetic fields of the brain were detected. This demonstrates the potential...

2010-04-29 12:54:43

With its new molecular beam epitaxy facility, PTB continues to be the only metrology institute to produce primary quantum Hall effect resistance standards For a long time, the electrical units are feeling at home in the quantum world. In the endeavor to trace the entire International System of Units (SI) back to natural constants, they have long been in the lead - because, among other things, the resistance can be realized with the aid of the quantum Hall effect. The Physikalisch-Technische...

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2010-04-19 09:46:56

Investigators from Hanover and Braunschweig measure how the electronic properties of graphene can be controlled with purposefully used roughnesses At present, graphene probably is the most investigated new material system worldwide. Due to its astonishing mechanical, chemical and electronic properties, it promises manifold future applications "“ for example in microelectronics. The electrons in graphene are particularly movable and could, therefore, replace silicon which is used today...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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