8 research outputs found

    Dipole-switch induced modification of the emissive response of carbonnanotubes

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    The interaction of carbon nanotubes with the molecular dipole switch spiropyran is expected to affect the optical response of the tubes. Until now, the need of anchor groups to immobilize the switches on the tubes has hindered the experimental observation of the effects of switching on the emission behavior of the tubes. Here we present spiropyran-carbon nanotube complexes obtained by micelle swelling. This method does not require any anchor nor sophisticated chemistry to warrant close tube-switch proximity. For the first time, we observe the shifts predicted theoretically and their effect on the tubes' excitation and emission energies

    Relationship between kinetics of stover fermentation as described by the Hohenheim in vitro gas production test and voluntary feed intake of 54 cereal stovers

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    .54 Getreidearten aus Syrien (36 Gerstenstrohs), Aethiopien (8 Tefstrohs) und Grossbritannien (10 Weizen- und Gerstenstrohs, unbehandelt und NH3-behandelt) wurden in vivo (Schaf, Kalb) und in vitro untersucht. Eine Kombination von Gasvolumen zu fruehen Inkubationszeiten (4, 6 oder 8 Std.) mit dem Quotienten von wahrer Verdaulichkeit zu Gasvolumen nach 24 stuend. Inkubation erklaerten 81-83% der Varianz in der freiwilligen Futteraufnahme. Ernterueckstaende, die einen hoeheren Teil der wahr abbaubaren Substanz in mikrobieller Biomasse anlegen, zeigten eine hoehere Futteraufnahme als solche, die abbaubares Substrat bevorzugt in Fettsaeuren ueberfuehrenSIGLEAvailable from: Hohenheim Univ., D-70593 Stuttgart (Germany). Universitaetsbibliothek, Garbenstr. 15 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

    Beneficial Effects of Saponins on Animal Production

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