At the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB (Stuttgart, Germany), a new type of protein chip is being developed based on protein-binding silica-nanoparticles. The surface of this minute particle with a diameter of less than one ten-thousandth of a millimeter can be configured with many different capture proteins. The particles configured in this way are then applied to silicon carriers in thin, even layers. After contact is made with a sample, the chips can be analyzed using state-of-the-art mass spectrometry, MALDI-TOF mass spectrometry. Knowing the masses of the bound proteins provides a direct indication of their identity.
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The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.