Chalcopyrite CuGaTe(2): a high-efficiency bulk thermoelectric material.

CuGaTe(2) with a chalcopyrite structure demonstrates promising thermoelectric properties. The maximum figure of merit ZT is 1.4 at 950 K.

Bioreactor design for cornea tissue engineering: Material-cell interactions.

Several materials were evaluated for potential use in a bioreactor system for a tissue-engineered cornea. Two types of cytotoxicity tests were performed using human corneal stromal fibroblasts: a 24h cytotoxicity test based on the ASTM standard F813-01 and a 7 days growth inhibition test. It was determined that culture configuration, autoclaving and materials surface preparation were all important factors influencing cell viability.