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Surfaces of materials that promote cell adhesion, proliferation, and growth are critical for new generation of implantable biomedical devices. These films should be able to coat complex geometrical shapes very conformally, with smooth surfaces to produce hermetic bioinert protective coatings, or to provide surfaces for cell grafting through appropriate… (More)
Microcantilever deflection and the membrane deflection experiment (MDE) were used to examine the elastic and fracture properties of ultrananocrystalline diamond (UNCD) thin films in relation to their application to microelectromechanical systems (MEMS). Freestanding microcantilevers and membranes were fabricated using standard MEMS fabrication techniques… (More)
Introduction: Twenty-five years after the discovery of meteoritic nanodiamonds, their origins are still unknown. Isotopic anomalies in Xe, Ba, Pd, and Te found in bulk samples of nanodiamonds can be only explained by stellar nucleosynthesis and hence indicate a presolar origin [1–4]. In contrast, C and N isotopic ratios of bulk nanodiamonds are close to… (More)
Unique functional materials provide a platform as scaffolds for cell/tissue regeneration. Investigation of cell-materials' chemical and biological interactions will enable the application of more functional materials in the area of bioengineering, which provides a pathway to the novel treatment for patients who suffer from tissue/organ damage and face the… (More)
This paper describes the fundamental and applied science performed to integrate piezoelectric PbZrxTi1¿xO3 and AlN films with a novel mechanically robust ultrananocrystalline diamond layer to enable a new generation of low voltage / high-performance piezoactuated hybrid piezoelectric/diamond MEMS/NEMS devices.