Jun 18 – 23, 2023
University of New Brunswick
America/Halifax timezone
Welcome to the 2023 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2023!

(G*) Field-Driven Polymer Collisions in Nanotubes

Jun 20, 2023, 9:15 AM
15m
UNB Tilley Hall (Rm. 205 (max. 85))

UNB Tilley Hall

Rm. 205 (max. 85)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Symposia Day (DPMB/DCMMP - DPMB/DPMCM) - Soft Matter and Biological and Physics | Matière molle et physique biologique (DPMB/DCMMP) T1-1 Soft Matter and Biological Physics Symposium | Symposium sur la matière molle et la physique biologique (DPMB/DPMCM)

Speaker

Han yang Wang

Description

Even though dilute (unentangled) polymer solutions cannot act as gel-like sieving media, it has been shown that they can be used to separate DNA molecules in capillary electrophoresis. The separation then comes from sporadic and independent polyelectrolyte-polymer collisions. Here we explore such collisions in nanochannels (i.e., channels that are smaller than the normal size of the polymers), a situation where a charged analyte is forced to migrate "through" isolated uncharged molecules during electrophoresis. We use Langevin dynamics (LD) simulations to investigate the nature of these collisions and their effect on the net movement of both polymer chains. We identify several types of collisions, including some that are unique to nanochannels. These results suggest a few potential applications for the analysis of biomolecules.

Keyword-1 nanofluidics
Keyword-2 electrophoresis
Keyword-3 Biopolymers

Primary authors

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