Lactic Acid

"lactic acid is a sperm motility inactivation factor in the sperm storage tubules.", by Matsuzaki M, Mizushima S, Hiyama G, Hirohashi N, Shiba K, Inaba K, Suzuki T, Dohra H, Ohnishi T, Sato Y, Kohsaka T, Ichikawa Y, Atsumi Y, Yoshimura T, Sasanami T. f2: Sperm storage tubules produced large quantities of lactic acid.(a) Lactic acid levels in sperm storage tubule (SST) epithelium extracts and surface epithelial cells (Non-SST epithelium) isolated by laser microdissection (LMD). Values shown are means...

The innate brittleness of poly has hindered its extensive use in many structural applications. Environment-friendly acids with multifunctional groups, such as 1,2,3,4-butanetetracarboxylic acid, were used to modify PLA chain ends/tails via a melt reaction. At the same time, the strengthened PLA samples preserved the tensile stamina and Young's modulus of neat PLA, suggesting a distinct toughening mechanism that is various from the plasticizing result. To understand the toughening, we recommend a chain end engineering image that can improve the toughness by means of a reduction in the number density of chain defects or finishes of entanglement and the formation of long-branch topological structures.

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