The vast majority of our knowledge about the ubiquitous biomolecule that contains our blueprints focuses on the information contained within its sequence. At the same time, the axon also propagates electrical signals by rapidly on the order of milliseconds exchanging sodium and potassium ions. For instance, ionic concentrations within cells are carefully regulated by ion pumps and channels, which are known to be vital for myriad of physiological functions. Atomic force microscopy of selfassembled DNAprotein nanostructures demonstrate that the supercoiling can be regulated by controlling the ionic strength of the solution, thus resulting in an ionic switch .

Atomic force microscopy of selfassembled DNAprotein nanostructures demonstrate that the stability of supercoiled DNA depends on the presence of positively charged ions, which balance the close interactions of the negatively charged DNA helices. Thus, improvements in our understanding of NEMS not only helps nanoengineers to make optimal use of biomolecular components, but can also help medical technology to cure disease on the molecular level.. The vast majority of our knowledge about the ubiquitous biomolecule that contains our blueprints focuses on the information contained within its sequence.

Thus, its natural that scientists are finding ways to use DNA for biomimetic control systems. Since eukaryotic DNA is organized by histones bound to the DNA at regularly spaced intervals, it is likely that similar ionic switching takes place in vivo. Thus, improvements in our understanding of NEMS not only helps nanoengineers to make optimal use of biomolecular components, but can also help medical technology to cure disease on the molecular level.

Atomic force microscopy of selfassembled DNAprotein nanostructures demonstrate that the supercoiling can be regulated by controlling the ionic strength of the solution, thus resulting in an ionic switch .The nanostructures in this work all had the same length of DNA separating the nanoparticle connectors in this case, streptavidin protein. Since eukaryotic DNA is organized by histones bound to the DNA at regularly spaced intervals, it is likely that similar ionic switching takes place in vivo.

One can only imagine how these rapid changes in ionic strength might affect the nanomechanics of the vesicle transport system within the axon. For instance, ionic concentrations within cells are carefully regulated by ion pumps and channels, which are known to be vital for myriad of physiological functions. Discrete switching of nucleic acid supercoiling might play crucial roles in allowing enzymes to access the DNA, affecting nuclear processes ranging from transcription to replication. Like the electronic properties of DNA are used in vivo.

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