David R. Cole

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Research in the deep terrestrial biosphere is driven by interest in novel biodiversity and metabolisms, biogeochemical cycling, and the impact of human activities on this ecosystem. As this interest continues to grow, it is important to ensure that when subsurface investigations are proposed, materials recovered from the subsurface are sampled and preserved(More)
Initially inspired by biological motors, new types of nanodevice have been proposed for controlling the motion of nanoparticles. Structures incorporating spatially asymmetric potential profiles (ratchet substrates) have been realized experimentally to manipulate vortices in superconductors, particles in asymmetric silicon pores, as well as charged particles(More)
The high energy resolution, coupled with the wide dynamic range, of the new backscattering spectrometer (BASIS) at the Spallation Neutron Source, Oak Ridge National Laboratory, has made it possible to investigate the diffusion dynamics of hydration water on the surface of rutile (TiO 2) nanopowder down to a temperature of 195 K. The dynamics measured on the(More)
– We demonstrate experimentally that the micromagnetic profile of the out-of-plane component of magnetic induction of layered superconductors, Bz, can be manipulated by varying the in-plane magnetic field, H. Moving Josephson vortices, confined between layers, drag pancake vortex stacks carrying out-of-plane flux, and the magnetic profile, Bz(x), can be(More)
Structural dynamics of a colloidal protein-mineral complex bestowing on calcium phosphate a high solubility in biological fluids 1(a) Network Structure of Poly(methyl methacrylate)-based Gels and Gel Electrolytes 1(a) Hydrodynamic effects in bicontinuous microemulsions measured by inelastic neutron scattering 1(a) Segmental dynamics of poly(methyl phenyl(More)
Asymmetric poly(ethylene-alt-propylene)-poly(ethylene oxide) micelles: A system with star-like morphology and interactions 1a Dielectric and thermal relaxation in the energy landscape 1a Biofizika 52, 799-803 (2007) Dynamic properties of RecA protein filaments from E-coli and P-aeruginosa investigated by neutron spin echo 1a Eur. Effect of nanoscopic(More)