Karolina Gronkiewicz, Lars Richter, Fabian Knechtel, Patryk Pyrcz, Paul Leidinger, Sebastian Günther, Evelyn Ploetz, Philip Tinnefeld and Izabela Kamińska
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引用次数: 0
Abstract
The interaction between single emitters and graphene in the context of energy transfer has attracted significant attention due to its potential applications in fields such as biophysics and super-resolution microscopy. In this study, we investigate the influence of the number of graphene layers on graphene energy transfer (GET) by placing single dye molecules at defined distances from monolayer, bilayer, and trilayer graphene substrates. We employ DNA origami nanostructures as chemical adapters to position the dye molecules precisely. Fluorescence lifetime measurements and analysis reveal an additive effect of graphene layers on the energy transfer rate extending the working range of GET up to distances of approximately 50–60 nm. Moreover, we show that switching a DNA pointer strand between two positions on a DNA origami nanostructure at a height of >28 nm above graphene is substantially better visualized with multilayer graphene substrates suggesting enhanced capabilities for applications such as biosensing and super-resolution microscopy for larger systems and distances. This study provides insights into the influence of graphene layers on energy transfer dynamics and offers new possibilities for exploiting graphene's unique properties in various nanotechnological applications.
由于其在生物物理学和超分辨率显微镜等领域的潜在应用,单发射体与石墨烯之间在能量传递方面的相互作用已引起人们的极大关注。在本研究中,我们将单个染料分子放置在离单层、双层和三层石墨烯基底一定距离的地方,研究石墨烯层数对石墨烯能量转移(GET)的影响。我们采用 DNA 折纸纳米结构作为化学适配器来精确定位染料分子。荧光寿命测量和分析表明,石墨烯层对能量传输率具有叠加效应,可将 GET 的工作范围扩展到约 50-60 纳米的距离。此外,我们还发现,在石墨烯上方 28 纳米以上的 DNA 折纸纳米结构上,DNA 指针链在两个位置之间的切换在多层石墨烯基底上得到了更好的可视化,这表明生物传感和超分辨显微镜等应用在更大系统和更远距离上的能力得到了增强。这项研究深入揭示了石墨烯层对能量传递动力学的影响,为在各种纳米技术应用中利用石墨烯的独特性能提供了新的可能性。
期刊介绍:
Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.