Porous gold & ? Hello All, Apollon Solar has a patent on porous silicon wafer production. Perhaps between Apollon & HPQ a porous gold nanopowder/nanowire can be produced as there are significant advantages for those materials, in many fields such as , medical/biological/communication/transmission/etc. Another area of research worth looking into, IMO, is what nanaopowder/nanaowire is the most difficult to produce but would have high demand/high pricing to justify the production of these more rare but very useful marketable products. It will be, in the end, the elements that can make a difference for marketing & profits. An old saying may be appropriate, ' it's elementary my dear Watson ' ! Best wishes to All, Sincerely, Topseeker