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Aligned carbon nanotube sheets are developed as a new family of electrodes to fabricate dye-sensitized solar cells. The energy conversion efficiency of the resulting cell is higher than the randomly dispersed carbon nanotube film and comparable with the platinum. Novel and flexible solar cells can be easily made from such carbon nanotube sheets with high(More)
Retaining biological characteristics in the extended passaging is crucial for human umbilical cord mesenchymal stem cells (hUCMSCs) in tissue engineering. We aimed to assess morphology, viability, MSC marker expression, and osteogenic activity of hUCSMCs after extended passaging. Passages 4 (P4) and 16 (P16) hUCMSCs displayed similar morphology and(More)
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