Architectural applications of nanotechnology raise new issues
Filed in archive Materials by george elvin on November 11, 2006

I discussed a variety of building materials already available like bacteria-killing coatings as well as materials working their way from the lab to the marketplace, such as carbon structures. The question and answer session was invigorating too, as architects and material suppliers expressed their concerns, hopes and, in some cases, even experiences regarding nanomaterials. Several of them raised issues that apply across markets.
Steven Brittan, a principal with Burt, Hill, for example, asked how he could overcome the resistance
of general contractors (who are not always eager to innovate,) to designs incorporating nanomaterials. I replied that before we see carbon nanotube structures or other architectural applications of new nanomaterials we will see conventional materials like concrete and steel reinforced with nanoparticles and nanowires. That should allow even conservative contractors the opportunity to ease into the world of nanomaterials without too much resistance.Amir Rudyan of AVM Industries, which markets nanocoatings for self-cleaning building facades, said the biggest obstacle for him is actually getting customers to accept the effectiveness of these new materials. Antibacterial coatings, for example, can kill 60-90% of the germs that come in contact with them. He said clients can even be suspicious because the coatings are invisible. Because of that, his firm makes another coating that can be sprayed over the self-cleaning or antibacterial coating; it changes color when it contacts the original coating so that applicators and clients alike can see if any surfaces have been missed.
That raises an interesting issue: How to assure quality control of invisible nanomaterials? (photo AVM Industries)
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nanotechnology nanotech nano construction architecure material materials architectural+applications
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