Please use this identifier to cite or link to this item: https://doi.org/10.1021/acsomega.8b01448
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dc.titlePolymer-Based Accurate Positioning: An Exact Worm-like-Chain Study
dc.contributor.authorHou, R.
dc.contributor.authorWang, N.
dc.contributor.authorBao, W.
dc.contributor.authorWang, Z.
dc.date.accessioned2021-12-06T04:29:56Z
dc.date.available2021-12-06T04:29:56Z
dc.date.issued2018
dc.identifier.citationHou, R., Wang, N., Bao, W., Wang, Z. (2018). Polymer-Based Accurate Positioning: An Exact Worm-like-Chain Study. ACS Omega 3 (10) : 14318-14326. ScholarBank@NUS Repository. https://doi.org/10.1021/acsomega.8b01448
dc.identifier.issn2470-1343
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/209650
dc.description.abstractPrecise positioning of molecular objects from one location to another is important for nanomanipulation and is also involved in molecular motors. Here, we study single-polymer-based positioning on the basis of the exact solution to the realistic three-dimensional worm-like-chain (WLC) model. The results suggest the possibility of a surprisingly accurate flyfishing-like positioning in which tilting one end of a flexible short polymer enables positioning of the other diffusing end to a distant location within an error of ?1 nm. This offers a new mechanism for designing molecular positioning devices. The flyfishing effect (and reverse process) likely plays a role in biological molecular motors and may be used to improve speed of artificial counterparts. To facilitate these applications, a new force-extension formula is obtained from the exact WLC solution. This formula has an improved accuracy over the widely used Marko-Siggia formula for stretched polymers and is valid for compressed polymers too. The new formula is useful in analysis of single-molecule stretching experiments and in estimating intramolecular forces of molecular motors, especially those involving both stretched and compressed polymer components. © Copyright 2018 American Chemical Society.
dc.publisherAmerican Chemical Society
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceScopus OA2018
dc.typeArticle
dc.contributor.departmentDEPT OF MATHEMATICS
dc.contributor.departmentDEPT OF PHYSICS
dc.description.doi10.1021/acsomega.8b01448
dc.description.sourcetitleACS Omega
dc.description.volume3
dc.description.issue10
dc.description.page14318-14326
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