NanoDynamics Inc., a Buffalo, N.Y.-based developer of solid-oxide fuel cells, water filters and other advanced materials, has postponed its IPO due to “current market condition.” The company had planned to offer 6.6 million common shares at between $12 and $14 per share, and to trade on the Nasadaq. Jefferies & Co. is serving as lead underwriter. NanoDynamics has raised around $15.25 million in total private funding, with backers including the Convergent Private Equity Fund. www.nanodynamics.com