Vitamin E-derived copolymers continue the challenge to hemodialysis biomaterials

Figure 1 Molecular structure of some forms of vitamin E. A: α-tocopherol (top) and its redox-silent synthetic analogue TPGS 1000 (bottom); B: Some examples of vitamin E analogues with antioxidant activity: the synthetic formsα-tocopherylamine (top) and Trolox (middle), and the hepatic short-chain metabolite α-CEHC (bottom).