Super-resolution fingerprinting detects chemical reactions and idiosyncrasies of single DNA pegboards.
Super-resolution fingerprinting detects chemical reactions and idiosyncrasies of single DNA pegboards.
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DOI:
10.1021/nl304415b
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发表时间:
2013-02-13
期刊:
影响因子:
10.8
通讯作者:
Walter NG
中科院分区:
文献类型:
--
作者:
Johnson-Buck A;Nangreave J;Kim DN;Bathe M;Yan H;Walter NG
We employ the single-particle fluorescence nanoscopy technique PAINT (points accumulation for imaging in nanoscale topography) using site-specific DNA probes to acquire two-dimensional density maps of specific features patterned on nanoscale DNA origami pegboards. We show that PAINT has a localization accuracy of ~10 nm that is sufficient to reliably distinguish dense (>104 features μm−2) sub-100-nm patterns of oligonucleotide features. We employ two-color PAINT to follow enzyme-catalyzed modification of features on individual origami, and to show that single nano-pegboards exhibit stable, spatially heterogeneous probe-binding patterns, or “fingerprints.” Finally, we present experimental and modeling evidence suggesting that these fingerprints may arise from feature spacing variations that locally modulate the probe binding kinetics. Our study highlights the power of fluorescence nanoscopy to perform quality control on individual soft nanodevices that interact with and position reagents in solution.
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影响因子:
14.9
作者:
Kim DN;Kilchherr F;Dietz H;Bathe M
通讯作者:
Bathe M
影响因子:
3.4
作者:
Thompson, RE;Larson, DR;Webb, WW
通讯作者:
Webb, WW
影响因子:
15
作者:
Li Z;Liu M;Wang L;Nangreave J;Yan H;Liu Y
通讯作者:
Liu Y
DOI:
10.1073/pnas.0609643104
发表时间:
2006-12-12
影响因子:
11.1
作者:
Sharonov, Alexey;Hochstrasser, Robin M.
通讯作者:
Hochstrasser, Robin M.
DOI:
10.1002/wnan.170
发表时间:
2012-03
影响因子:
8.6
作者:
Michelotti, Nicole;Johnson-Buck, Alexander;Manzo, Anthony J.;Walter, Nils G.
通讯作者:
Walter, Nils G.