Researchers at George Washington University and the Department of Energy's Oak Ridge National Laboratory have demonstrated that tailored silicon nanopost arrays can provide researchers with an important analytical tool for nanoscale applications. The arrays, fabricated at ORNL's Center for Nanophase Materials Sciences, enable researchers to control ion production at the nanometer scale, resulting in high sensitivity and resolution for the analysis of organic molecules and biomolecules by laser desorption ionization mass spectrometry. The technology has potential applications for use with microfluidic, lab-on-a-chip devices and miniaturized mass spectrometers.
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