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Artificial Molecular Machines.

Erbas-Cakmak S, Leigh DA, McTernan CT, Nussbaumer AL - Chem. Rev. (2015)

View Article: PubMed Central - PubMed

Affiliation: School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom.

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bonded molecules and on catenanes and rotaxanes in which switching of other protic solvents... This effect (listed in descending binding ability) stations on the thread, macrocycle In these systems, fast-responding reporters are preferred... practical applications by utilizing molecular scale changes to create macroscopic effects... The thread of these rotaxanes included an anthracene fluorophore similar application in synthetic polymers often furnishes a useful result... of Brownian motion can be exploited to great effect in the synthesis every aspect of functional molecule and materials design... An improved robotics” in which ratcheted motions of molecular components

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Control ofanion concentration in solution by a photoresponsivefoldamer. Reprinted with permission from ref (595). Copyright 2010 AmericanChemical Society.
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fig22: Control ofanion concentration in solution by a photoresponsivefoldamer. Reprinted with permission from ref (595). Copyright 2010 AmericanChemical Society.

Mentions: Stimulus-driven molecular level conformational change and subsequentcontrol over the binding affinity of guest molecules have been usedto regulate anion concentration in solution.592−594 Flood et al. developed a triazole-based foldamer bearing an azobenzenemoiety in the structure (Figure 22).595 Hydrogen bonding betweenthe triazole units and a chloride anion together with π-stackingwithin the foldamer backbone kept the anion buried in the interior.592,596−602 Photoisomerization of the azobenzene moieties disrupted the stacking,inducing unfolding and releasing the anions. This photoinduced releaseand capture of anions is completely reversible. Calculated K values in acetonitrile decrease significantly from 3000to 380 M–1 upon irradiation with UV-light. In addition,the conductivity of the irradiated sample increased due to releaseof anions into solution. Helical inversion caused by ion binding hasalso been observed.603 Stimuli responsiveswitches have great potential in drug release and ion-cargo transportapplications. Nitschke et al. have reported a complex system, wherethe addition of various signal molecules to a helical complex ledto a cascade of changes in the self-assembled system and various productdistributions could be formed.604


Artificial Molecular Machines.

Erbas-Cakmak S, Leigh DA, McTernan CT, Nussbaumer AL - Chem. Rev. (2015)

Control ofanion concentration in solution by a photoresponsivefoldamer. Reprinted with permission from ref (595). Copyright 2010 AmericanChemical Society.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4585175&req=5

fig22: Control ofanion concentration in solution by a photoresponsivefoldamer. Reprinted with permission from ref (595). Copyright 2010 AmericanChemical Society.
Mentions: Stimulus-driven molecular level conformational change and subsequentcontrol over the binding affinity of guest molecules have been usedto regulate anion concentration in solution.592−594 Flood et al. developed a triazole-based foldamer bearing an azobenzenemoiety in the structure (Figure 22).595 Hydrogen bonding betweenthe triazole units and a chloride anion together with π-stackingwithin the foldamer backbone kept the anion buried in the interior.592,596−602 Photoisomerization of the azobenzene moieties disrupted the stacking,inducing unfolding and releasing the anions. This photoinduced releaseand capture of anions is completely reversible. Calculated K values in acetonitrile decrease significantly from 3000to 380 M–1 upon irradiation with UV-light. In addition,the conductivity of the irradiated sample increased due to releaseof anions into solution. Helical inversion caused by ion binding hasalso been observed.603 Stimuli responsiveswitches have great potential in drug release and ion-cargo transportapplications. Nitschke et al. have reported a complex system, wherethe addition of various signal molecules to a helical complex ledto a cascade of changes in the self-assembled system and various productdistributions could be formed.604

View Article: PubMed Central - PubMed

Affiliation: School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

bonded molecules and on catenanes and rotaxanes in which switching of other protic solvents... This effect (listed in descending binding ability) stations on the thread, macrocycle In these systems, fast-responding reporters are preferred... practical applications by utilizing molecular scale changes to create macroscopic effects... The thread of these rotaxanes included an anthracene fluorophore similar application in synthetic polymers often furnishes a useful result... of Brownian motion can be exploited to great effect in the synthesis every aspect of functional molecule and materials design... An improved robotics” in which ratcheted motions of molecular components

No MeSH data available.