http://www.phys.sinica.edu.tw/~polyphys/ The Polymer Physics and Complex Fluids Group actively develops novel methods for investigating the equilibrium and non-equilibrium properties of complex particles and complex fluids. We develop and employ cutting-edge theoretical and computational tools to understand the complex interplays within complex fluids, including polymer and biopolymer solutions, extra- and intra-celluar dynamics, and highly confined polyelectrolyte systems. Currently, advanced simulation models are able to capture the thermodynamics and dynamics of molecules on the nanoscale, while continuum models have been successful in describing material mechanics on the bulk scale. However, a bridge linking the nanoscale to the bulk properties is direly needed. Our group aims to develop multi-spatial/temporal scale methods that seek to link nanoscale properties to microscale mechanics, and microscale mechanics to macroscale phenomena. Currently, advanced simulation models are able to capture the thermodynamics and dynamics of molecules on the nanoscale, while continuum models have been successful in describing material mechanics on the bulk scale. However, a bridge linking the nanoscale to the bulk properties is direly needed. Our group aims to develop multi-spatial/temporal scale methods that seek to link nanoscale properties to microscale mechanics, and microscale mechanics to macroscale phenomena. en-us Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/coarse_grained_model_for_dna_dynamics_on_the_micron_millisecond_scale.html Multi-scale coarse-grained models are employed to study DNA dynamics in microchannels. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/coarse_grained_model_for_dna_dynamics_on_the_micron_millisecond_scale.html http://www.phys.sinica.edu.tw/~polyphys/research/equilibrium_and_non_equilibrium_polymer_dynamics.html Dilute solution polymer dynamics is investigated using theory and simulation methods. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/equilibrium_and_non_equilibrium_polymer_dynamics.html http://www.phys.sinica.edu.tw/~polyphys/research/dna_migration_in_pressure-driven_flow.html Flow-induced DNA migration in microchannels is discovered with Brownian dynamics simulation with hydrodynamic interactions. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/dna_migration_in_pressure-driven_flow.html http://www.phys.sinica.edu.tw/~polyphys/research/dna_trapping_in_counter-rotating_flow.html DNA trapping in counternear flow stagnation flow is found to undergo a flow-rate dependent conformation transition. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/dna_trapping_in_counter-rotating_flow.html http://www.phys.sinica.edu.tw/~polyphys/research/dna_dynamics_in_sub-persistence_length_channels.html Brownian dynamics investigation of DNA dynamics in sub-100nm nanochannels. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/dna_dynamics_in_sub-persistence_length_channels.html http://www.phys.sinica.edu.tw/~polyphys/research/vesicle_cell_dynamics_in_flow.html Flow of O(100) soft particles in microchannels are investigated using fluid dynamics simulations. Thu, 27 May 2010 20:00:00 GMT http://www.phys.sinica.edu.tw/~polyphys/research/vesicle_cell_dynamics_in_flow.html