Christoph Krumm

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ab Cellulosic particles on surfaces consisting of microstructured, asymmetric ratchets (100 by 400 lm) were observed to spontaneously move orthogonal to ratchet wells above the cellulose reactive Leidenfrost temperature (4750 8C). Evaluation of the accelerating particles supported the mechanism of propelling viscous forces (50–200 nN) from rectified(More)
An important advance in fluid surface control was the amphiphilic surfactant composed of coupled molecular structures (i.e., hydrophilic and hydrophobic) to reduce surface tension between two distinct fluid phases. However, implementation of simple surfactants has been hindered by the broad range of applications in water containing alkaline earth metals(More)
Current research of complex chemical systems, including biomass pyrolysis, petroleum refining, and wastewater remediation requires analysis of large analyte mixtures (>100 compounds). Quantification of each carbon-containing analyte by existing methods (flame ionization detection) requires extensive identification and calibration. In this work, we describe(More)
The condition of heat transfer to lignocellulosic biomass particles during thermal processing at high temperature (>400 °C) dramatically alters the yield and quality of renewable energy and fuels. In this work, crystalline cellulose particles were discovered to lift off heated surfaces by high speed photography similar to the Leidenfrost effect in hot,(More)
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