Issue Date: March 5, 2018
Nanocomposites cut down on chromium waste from making leather
The cost of soft, supple leather shoes and handbags goes beyond the price tag. Chromium tanning agents transform roughly 90% of the world’s animal hides into leather, and a good deal of the chromium ends up in wastewater, where it becomes a hazard. To cut pollution levels, several groups have turned to nanocomposites, which improve chromium uptake into the network of polymerized collagen fibrils that makes up leather. Along those lines, Bin Lyu and Jianzhong . . .
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