DNA折纸
圆二色性
纳米技术
材料科学
DNA
光电子学
光学
结晶学
物理
化学
纳米结构
生物化学
作者
Chengfeng Li,NULL AUTHOR_ID,NULL AUTHOR_ID,Chuang Feng,Zhanyi Zhang,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,Huajie Liu,Zhanshan Wang,Xinbin Cheng
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-07-08
标识
DOI:10.1021/acs.nanolett.4c01735
摘要
Circular dichroism (CD) spectroscopy has been extensively utilized for detecting and distinguishing the chirality of diverse substances and structures. However, CD spectroscopy is inherently weak and conventionally associated with chiral sensing, thus constraining its range of applications. Here, we report a DNA-origami-empowered metasurface sensing platform through the collaborative effect of metasurfaces and DNA origami, enabling achiral/slightly chiral sensing with high sensitivity via the enhanced ΔCD. An anapole metasurface, boasting over 60 times the average optical chirality enhancement, was elaborately designed to synergize with reconfigurable DNA origami. We experimentally demonstrated the detection of achiral/slightly chiral DNA linker strands via the enhanced ΔCD of the proposed platform, whose sensitivity was a 10-fold enhancement compared with the platform without metasurfaces. Our work presents a high-sensitivity platform for achiral/slightly chiral sensing through chiral spectroscopy, expanding the capabilities of chiral spectroscopy and inspiring the integration of multifunctional artificial nanostructures across diverse domains.
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