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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la900640f
|2 doi
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|a pubmed25n0630.xml
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|a (NLM)19499943
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Yinli
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Influence of tunable external stimuli on the self-assembly of guanosine supramolecular nanostructures studied by atomic force microscope
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| 264 |
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|c 2009
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 01.02.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a The self-assembly of guanosine (G) molecules on solid surfaces is investigated by tapping-mode atomic force microscopy (AFM) upon controlling and introducing external factors (stimuli) to the G stock solution such as incubation time, presence/absence of metal cations, and mechanical shaking. Surprisingly, at different stages of incubation time at room temperature and in the absence of any metal cations in the G stock solution, which are known to be one of the governing factors in forming G-nanostructures, two assembly pathways resulting into two distinct supramolecular nanostructures were revealed. Astonishingly, by introducing a mechanical shaking of the tube containing the G stock solution, one-dimensional (1D) wires of G molecules are observed by AFM, and very interestingly, novel "branched" supramolecular nanostructures are formed. We have also observed that the later branched G nanostructures can grow further into a two-dimensional (2D) thin film by increasing the incubation time of the G stock solution at room temperature after it is exposed to the external mechanical stimuli. The self-assembled nanostructures of G molecules are changed significantly by tuning the assembly conditions, which show that it is indeed possible to grow complex 2D nanostructures from simple nucleoside molecules
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Guanosine
|2 NLM
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| 650 |
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|a 12133JR80S
|2 NLM
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| 700 |
1 |
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|a Dong, Mingdong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Otzen, Daniel E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Yuheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Besenbacher, Flemming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mamdouh, Wael
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 25(2009), 23 vom: 01. Dez., Seite 13432-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:25
|g year:2009
|g number:23
|g day:01
|g month:12
|g pages:13432-7
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|u http://dx.doi.org/10.1021/la900640f
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