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缺陷不敏感的圆柱形表面格子共振阵列及其批次复制用于增强的免疫测试.

Bin Zhou1, Chao Hu1, Haoyang Li2

  • 1Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, 518107, Shenzhen, China.

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概括

我们开发了一种新的,耐缺陷的圆柱形表面晶格共振 (SLR) 阵列,以提高免疫测试灵敏度. 这种可扩展的平台为生物传感应用提供了强大的性能和减少的制造复杂性.

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科学领域:

  • 塑制剂是一种塑制剂.
  • 纳米技术纳米技术
  • 生物感应是一种生物感应.

背景情况:

  • 表面晶格共振 (SLR) 增强了等离子体共振灵敏度,并减少了线宽 (FWHM).
  • 目前在免疫试验中的SLR应用受到结构缺陷的敏感性和高制造成本的限制.

研究的目的:

  • 设计一种新的三层圆柱形SLR阵列,对结构缺陷具有很高的耐受性.
  • 为了展示高质量,缺陷不敏感的单反相机阵列的制造方法.
  • 在检测免疫球蛋白G (IgG) 的免疫试验中评估这些阵列的性能.

主要方法:

  • 使用金属蒸发和纳米印记光刻技术制造三层圆柱形SLR阵列.
  • 理论模拟以评估共振下降的缺陷灵敏度.
  • 阵列质量,共振特性和光谱灵敏度的实验性表征.

主要成果:

  • 制造的单反相机阵列对结构缺陷具有很高的耐受性,并通过模拟证实了这一点.
  • 阵列表现出5.1nm的低FWHM,具有强大的共振特征.
  • 该SLR阵列成功检测到免疫球蛋白G (IgG) 在低至609 pg/mL的度.

结论:

  • 新型,缺陷不敏感的SLR阵列为敏感和可扩展的免疫测试提供了一个有前途的平台.
  • 这种简单的制造方法解决了以前的单反相机技术的局限性.
  • 这一进步有助于开发高性能,具有成本效益的生物传感平台.