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Fast Probes Outmeasure AFM

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ATLANTA, April 18, 2008 -- A new method for material characterization at the nanoscale integrates probe technology based on flexible membranes with a traditional atomic force microscopy (AFM) system to measure multiple properties of biomaterials and other materials simultaneously, at speeds up to 100 times faster than conventional AFM. The force sensing integrated readout and active tip (Firat) probe can replace traditional AFM for applications such as fast topographic imaging, quantitative material characterization and single-molecule mechanics measurements, the researchers said, and for simultaneously measuring...Read full article

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    Published: April 2008
    Glossary
    cantilever
    A projecting beam or other structure supported only at one end.
    dielectric
    Exhibiting the characteristic of materials that are electrical insulators or in which an electric field can be sustained with a minimum dispersion of power. They exhibit nonlinear properties, such as anisotropy of conductivity or polarization, or saturation phenomena.
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    nanotechnology
    The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    probe
    Acronym for profile resolution obtained by excitation. In its simplest form, probe involves the overlap of two counter-propagating laser pulses of appropriate wavelength, such that one pulse selectively populates a given excited state of the species of interest while the other measures the increase in absorption due to the increase in the degree of excitation.
    AFMatomic force microscopyBasic SciencebiologicalbiomedicalbiomoleculesBiophotonicscantileverConsumerDegertekindielectricdrug discoveryelasticityFIRATforce sensing integrated readout and active tipmaterial characterizationMicroscopynanonanotechnologyNews & Featuresphotonicsprobetopographic

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