Abstract In the article, the possibility of using the cholesteric liquid crystal mixture doped by the gold nanoparticles as an active medium of optical amino acid sensors is shown. The BLO-62 and the 5CB were used as a cholesteric liquid crystal and a nematic liquid crystal correspondingly. This mixture was doped by the gold nanoparticles. The method of gold nanoparticles synthesis is considered and their parameters are determined. Studies on the spectral characteristics of the investigated materials have shown that the addition of gold nanoparticles to the system leads to a significant decreasing in the spectral characteristic steepness and give the possibility of expanding the measurement range of amino acid concentration.

中文翻译：

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以金纳米粒子为光学传感器活性介质的液晶材料用于氨基酸检测

摘要 文章展示了用纳米金掺杂的胆甾型液晶混合物作为光学氨基酸传感器活性介质的可能性。BLO-62和5CB分别用作胆甾型液晶和向列型液晶。该混合物由金纳米颗粒掺杂。考虑了金纳米粒子的合成方法并确定了它们的参数。对所研究材料的光谱特性的研究表明，在系统中加入金纳米粒子导致光谱特性陡度显着降低，并提供了扩大氨基酸浓度测量范围的可能性。