Just to save everyone a click, this is a 2011 paper. Here's some criticism: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230411/ https://www.ncbi.nlm.nih.gov/

Just to save everyone a click, this is a 2011 paper. Here's some criticism: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230411/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230411/ Here's some discussion from the authors: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230412/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230412/ Also, as a full disclosure, the "solution" proposed (more or less the purpose of this paper) is a proprietary plastic process the authors developed.