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Graphene Energy Transfer for Single-Molecule Biophysics, Biosensing, and Super-Resolution Microscopy
Advanced Materials ( IF 29.4 ) Pub Date : 2021-10-19 , DOI: 10.1002/adma.202105719
Izabela Kamińska , Johann Bohlen , Renukka Yaadav , Patrick Schüler , Mario Raab , Tim Schröder , Jonas Zähringer , Karolina Zielonka , Stefan Krause , Philip Tinnefeld

Adv. Mater. 2021, 33, 2101099

DOI: 10.1002/adma.202101099

In the published article, Figure 2 contained an extra panel (e) that was not mentioned in the caption. This panel also appears in the article's Supporting Information as Figure S3. An incorrect version had been used in the production data. The corrected version of Figure 2 is provided here as it should have appeared in the article.

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Figure 2
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Dynamic DNA origami nanostructures studied with GET. a) Sketch of the L-shaped DNA origami structure with a flexible pointer with fluorescent dye (Cy3B), and upper (26.5 nm) and lower (16.1 nm) binding strands yielding GET efficiencies of 15.7% (τup = 2.6 ns) and 59.3% (τlow = 1.3 ns). b) Representative transients for 8 (gray), 7 (blue), 6 (green), and 5 (lilac) nt binding. For 7 nt binding, the fluorescence lifetime (black) is also shown with 20 ms binning. All transients were acquired at 3 µW excitation power, except for eight nt binding (1 µW). c) Normalized correlation functions averaged over several transients and corresponding frequency distribution resulting from analyzing each transient individually. The gray dashed vertical line represents the correlation time for 8 nt extracted from concatenated transients. d) Sketch of the biosensing system with a 44 nt long tether, Cy3B, and a target recognizing unit (biotin) and target (streptavidin). e) Averaged correlation functions for photons with a long microtime (>2.5 ns) for measurements of the tether fluctuations in buffer (gray), in buffer with 30% glycerol (blue) and in buffer, incubated with streptavidin (lilac) after subtracting the fit of the correlation functions calculated from photons with a short microtime (<2.5 ns). See Supporting Information for a detailed description of the gating procedure.


中文翻译:

用于单分子生物物理学、生物传感和超分辨率显微镜的石墨烯能量转移

高级 母校202133日 2101099

DOI:10.1002/adma.202101099

在已发表的文章中,图 2 包含标题中未提及的额外面板 (e)。该面板也出现在文章的支持信息中,如图 S3 所示。生产数据中使用了不正确的版本。此处提供了图 2 的更正版本,因为它应该出现在文章中。

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图2
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用 GET 研究动态 DNA 折纸纳米结构。a) L 形 DNA 折纸结构的草图,带有带有荧光染料 (Cy3B) 的柔性指针,上部 (26.5 nm) 和下部 (16.1 nm) 结合链产生 15.7% 的 GET 效率(τ up  = 2.6 ns)和59.3% (τ = 1.3 纳秒)。b) 8(灰色)、7(蓝色)、6(绿色)和 5(淡紫色)nt 结合的代表性瞬变。对于 7 nt 绑定,荧光寿命(黑色)也显示为 20 ms 分档。除了八个 nt 绑定 (1 µW) 外,所有瞬态都是在 3 µW 激发功率下获得的。c) 归一化相关函数在几个瞬态上取平均值,以及单独分析每个瞬态所产生的相应频率分布。灰色虚线垂直线表示从串联瞬变中提取的 8 nt 的相关时间。d) 具有 44 nt 长系链、Cy3B 和目标识别单元(生物素)和目标(链霉亲和素)的生物传感系统示意图。e) 长微时间(>2.5 ns)光子的平均相关函数,用于测量缓冲区(灰色)中的系链波动,在含有 30% 甘油的缓冲液(蓝色)和缓冲液中,在减去从具有短微时间(<2.5 ns)的光子计算的相关函数的拟合后,与链霉亲和素(丁香)一起孵育。有关门控程序的详细说明,请参阅支持信息。
更新日期:2021-10-20
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