个人简介

B.Sc., Beijing University, 1982; Ph.D., University of Chicago, 1987. Assistant Professor, Caltech, 1991-97; Associate Professor, 1997-2002; Professor, 2002-.

研究领域

Chemical Engineering

Modern Chemical Engineering has become an increasingly molecular-based discipline. Statistical mechanics, which provides the bridge between the molecular constitution and interaction on the one hand and the macroscopic properties and behaviors on the other, is therefore playing an ever more important role in chemical engineering. In the Wang group, we use statistical mechanics to study a host of problems in the interdisciplinary areas of physical chemistry, material science and biophysics. Current research projects include nucleation phenomena in the phase transformation of complex fluids, dynamics of topologically constrained polymers, structure and dynamics of physical gels, charge solvation effects on the thermodynamics of polymer blends and block copolymers, viral DNA/RNA packaging, and membrane biophysics. A central goal of our work is to understand and predict properties based on the molecular characteristics of matter and systems. We strive to obtain simple insight to seemingly complex problems. In this regard, we are very much guided by the following quotation from J. W. Gibbs: "One of the principal objects of theoretical research... is to find the point of view from which the subject appears in its greatest simplicity." In line with this philosophy, we build coarse-grained models that capture the most essential features of the problems at hand without undue microscopic details, which are solved with a combination of modern analytical and numerical methods of statistical mechanics, including density functional theory, self-consistent field method, field-theoretical techniques, Monte Carlo simulation and Brownian Dynamics simulation.

近期论文

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YY Lu, LJ An, SQ Wang, and ZG Wang, "Origin of stress overshoot upon startup shear of entangled polymer melts," submitted to Physical Review Letters. X Xu, CL Ting, I Kusaka, and ZG Wang, "Nucleation in polymers and soft matter," submitted to Annual Review of Physical Chemistry. R Wang and ZG Wang, "Effects of image charges on double layer structure and forces," The Journal of Chemical Physics, 139, 124702, (2013). X Xu, DE Cristancho, S Costeaux, and ZG Wang, "Bubble nucleation in polymer-CO2 mixtures," Soft Matter, 9, 9675, (2013). YY Lu, LJ An, and ZG Wang, "Intrinsic viscosity of polymers: general theory based on a partially permeable sphere model," Macromolecules, 46, 5731, (2013). YY Lu, LJ An, SQ Wang, and ZG Wang, "Evolution of chain conformation and entanglements during startup shear," ACS Macro Letters, 2, 561, (2013). I Nakamura, NP Balsara, and ZG Wang, "First-order disorder-to-lamellar phase transition in lithium salt-doped block copolymers," ACS Macro Letters, 2, 478, (2013). I Nakamura and ZG Wang, "Effects of dielectric inhomogeneity in polyelectrolyte solutions," Soft Matter (Communication) , 9, 5686, (2013). X Xu, D E Cristancho, S Costeaux, and ZG Wang, "Discontinuous bubble nucleation due to a metastable condensation transition in polymer-CO2 mixtures," The Journal of Physical Chemistry Letters , 4, 1639, (2013). I Nakamura, AC Shi, and ZG Wang, "Ion solvation in liquid mixtures: Effects of solvent reorganization," Physical Review Letters, 109, 257802, (2012). CL Ting and ZG Wang, "Minimum Free Energy Paths for a Nanoparticle Crossing the Lipid," Soft Matter, 8, 12066, (2012). R Wang and ZG Wang, "Theory of Polymers in Poor Solvent: Phase Equilibrium and Nucleation Behavior," Macromolecules, 45, 6266, (2012). B Zhuang and ZG Wang, "Anomalous Concentration Effects on Phase Behavior and Nematic Order in Mixtures of Side-Chain Liquid Crystal Polymers and Low-Molecular-Weight Liquid Crystal," Macromolecules, 45, 6220, (2012). I Nakamura and ZG Wang, "Salt-doped block copolymers: Ion distribution, domain spacing and effective parameter," Soft Matter, 8, 9356, (2012). X Xu, DE Cristancho, S Costeux and ZG Wang, "Density-functional theory for polymer-carbon dioxide mixtures: A perturbed-chain SAFT approach," J. Chem. Phys, 137, 054902, (2012). X Xu, DE Cristancho, S Costeux and ZG Wang, "Density-Functional Theory for Polymer-Carbon Dioxide Mixtures," Industrial and Engineering Chemistry Research, 51, 3832, (2012). I Nakamura, NP Balsara and ZG Wang, "Thermodynamics of ion-containing polymers Blends and Block Copolymers," Physical Review Letters, 107, 198301, (2011). CL Ting, J Wu and ZG Wang, "Thermodynamic basis for the genome to capsid charge relationship in viral encapsidation," Proc. Nat. Acad. Sci, 108, 16986, (2011). R Wang and ZG Wang, "Effects of ion solvation on phase equilibrium and interfacialtension of liquid mixtures," J Chem Phys, 135, 014701, (2011). JY Guo, HJ Liang and ZG Wang, "Coil-to-globule transition by dissipative particle dynamics simulation," J Chem Phys, 134, 244904, (2011).