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The other component, contact lens ingredient polyacrylamide, forms cross-links using covalent bonds, in which atoms connect by sharing electrons.—Ashley P. Taylor, Discover Magazine, 7 Sep. 2012 But the gel holds together throughout the bounce thanks to the stronger covalent bonds of the polyacrylamide.—Ashley P. Taylor, Discover Magazine, 7 Sep. 2012 The polyacrylamide gel, similar to what’s in baby diapers, is thicker and stickier than the typical retardant used in aerial firefighting tactics.—Lila Seidman, Los Angeles Times, 11 Oct. 2021 The other contained polyacrylamide, a chemical compound primarily used in wastewater treatment but also found in certain cosmetics.—oregonlive, 11 May 2020 Today, protein separation is typically conducted using gel made of polyacrylamide instead of potato starch.—Denise Gellene, New York Times, 11 Jan. 2017
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