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Nanowire substrates play an increasingly important role for cell cultures as an approach for hybrid bio-semiconductor junctions. We investigate Jurkat T cells and neurons from mice cultured on Al2O3 coated ordered and randomly distributed nanowires. Cell viability was examined by life/membrane staining reporting comparable viability on planar and nanowire substrates. Imaging the hybrid interface reveals a wrapping of the cell membrane around the very nanowire tip. Patch clamp recordings show similar electrophysiological responses on each type of nanowires compared to planar control substrates. We demonstrate that the morphological characteristic of the nanowire substrate plays a subordinate role which opens up the arena for a large range of nanowire substrates in a functionalized application such as stimulation or sensing.

Nanowire substrates play an increasingly important role for cell cultures as an approach for hybrid bio-semiconductor junctions. We investigate Jurkat T cells and neurons from mice cultured on Al

We report the preparation and characterization of a new thin film organic-based magnet V[ETCEC]x, with TC of 161 ± 10 K, via low temperature chemical vapor deposition (CVD; T = 55 °C). X-ray photoelectron spectroscopy (XPS) indicates the ratio of V to ETCEC is 1:1.4. In addition, analysis of Fourier-transform infrared (FTIR) spectroscopy suggests a similar physical structure to V[ETCEC]x powder, with all nitrile and carbonyl oxygen coordinating to V(II) sites. Temperature-, field-, and frequency-dependent measurements of the magnetization as well as ferromagnetic resonance (FMR) measurements reveal complex magnetic behavior with a magnetic transition to a more disordered state at a freezing temperature just below the Curie temperature. The development of this magnetic thin film enables the direct incorporation of V[ETCEC]x into existing organic spintronics devices and opens up the potential exploration of all-organic magnetic heterostructures.