期刊
PHYSICS OF WAVE PHENOMENA
卷 30, 期 3, 页码 196-208出版社
PLEIADES PUBLISHING INC
DOI: 10.3103/S1541308X22030025
关键词
polymer membranes; photoluminescence spectroscopy; luminescence quenching; amino acids; polymer swelling; dynamic light scattering; isotopic effects; zeta potential; logic gates; binary gates
资金
- Russian Science Foundation [22-22-00649]
The interaction between Nafion polymer membrane and different amino acids was investigated using photoluminescence spectroscopy. It was found that the interaction of amino acids with the membrane surface led to luminescence quenching. Different dynamic modes were observed during Nafion membrane swelling in a suspension of amino acids with different isotopic compositions.
The interaction of Nafion polymer membrane with different amino acids has been experimentally investigated using photoluminescence spectroscopy. Experiments were performed with NaCl physiological solutions based on natural water (with a deuterium content of 157 +/- 1 ppm) or on deuterium-depleted water (DDW) (deuterium content <= 1 ppm). This study was motivated by the fact that Nafion swelling in natural water is accompanied by unwinding of polymer fibers into the liquid bulk, whereas no unwinding occurs in DDW. In addition, the set of polymer fibers unwound into the liquid bulk is similar to the extracellular matrix (glycocalix) on a cellular membrane surface. It is of interest to analyze the role of unwound fibers in the interaction of amino acids with the polymer membrane surface. The interaction of amino acids with the membrane surface was found to induce luminescence quenching. We observed for the first time different dynamic modes arising during Nafion membrane swelling in a suspension of amino acids with different isotopic compositions, including trigger effects similar to the processes occurring in logic gates of computers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据