The growth of filaments under macromolecular confinement using scaling theory. Issue 88 (17th September 2015)

• Record Type: Journal Article
• Authors: Zhu, Lin; Pan, Wei; Lu, Xi; Li, Desheng; Zhao, Jiang; Liang, Dehai
• Is Part Of: Chemical communications. Volume 51:Issue 88(2015)
• Page Start: 15928
• Page End: 15931
• Publication Date: 2015-09-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c5cc06748k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Macromolecular confinement regulates the growth rate, structure, and length of the filaments, which can be quantitatively described using scaling theory. Abstract : Quantitatively describing macromolecular confinement is still a challenge. Using the assembly of DNA tiles in a polyacrylamide network as a model, we studied the effect of macromolecular confinement on the growth of the filament by scaling theory. The results show that the confinement regulates the morphology, the initial growth rate v, and the eventual length of the filament N m . The initial growth rate is dependent on the medium viscosity η as ν ∝ η −0.94, and the filament adjusts its length in the given confined space as N m ∝ ( ξ / R g ) 1.8, with ξ being the mesh size of the polyacrylamide solution and R g being the radius of gyration of polyacrylamide.