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首頁> 外文會議>International Conference on Nanochannels, Microchannels and Minichannels; 20070618-20; Puebla(MX) >BROWNIAN DYNAMICS SIMULATIONS OF POLYMER BEHAVIOR IN NANOFLUIDIC AND MICROFLUIDIC SYSTEMS
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BROWNIAN DYNAMICS SIMULATIONS OF POLYMER BEHAVIOR IN NANOFLUIDIC AND MICROFLUIDIC SYSTEMS

機譯:納米流體和微流體體系中聚合物行為的布朗動力學模擬

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摘要

Brownian dynamics (BD) is a stochastic simulation method that can quantitatively describe the non-equilibrium behavior of long polymers (~1 micron contour length) over long time scales (~1 s). With the increasing use of nanoflpidic and microfluidic devices for the handling of biopolymers such as DNA, BD has the potential to be a powerful design tool for the separation and transport processes carried out in these devices. As a coarse-grained simulation method, BD also serves as a natural bridge between atomistic and continuum modeling. In this talk, an introduction to the Brownian dynamics simulation method will be given along with simulation results for some applications of current interest. The introduction will review basic molecular models for polymers (bead-rod, bead-spring) and the stochastic differential equations used to describe their dynamics. The applications will focus on polyelectrolyte adsorption and electrophoresis.
機譯:布朗動力學(BD)是一種隨機模擬方法,可以定量描述較長時間范圍(?1 s)內長聚合物(輪廓線長度約為1微米)的非平衡行為。隨著越來越多的納米流體和微流體設備用于處理生物聚合物(如DNA),BD有望成為一種強大的設計工具,用于在這些設備中進行分離和運輸。 BD作為一種粗粒度的模擬方法,還可以充當原子模型和連續(xù)模型之間的自然橋梁。在本次演講中,將對布朗動力學仿真方法進行介紹,并給出一些當前感興趣的應用的仿真結果。導言將回顧聚合物的基本分子模型(珠-棒,珠-彈簧)以及用于描述其動力學的隨機微分方程。應用將集中在聚電解質的吸附和電泳上。

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