Debnath Tanwi, Ghosh Pulak K, Li Yunyun, Marchesoni Fabio, Nori Franco
Department of Chemistry, University of Calcutta, Kolkata 700009, India.
Department of Chemistry, Presidency University, Kolkata 700073, India.
J Chem Phys. 2019 Apr 21;150(15):154902. doi: 10.1063/1.5081125.
We investigate the one- and two-dimensional diffusion limited reactions A + A → 0 and A + B → 0 with A active Janus particles and B passive particles in thermal equilibrium. We show that by increasing the self-propulsion time of the A particles, the reactant densities decay faster, at least for time transients of potential interest for chemical applications, e.g., to develop smart drug delivery protocols. Asymptotic and transient density decays obey power laws with exponents that depend on the actual annihilation reaction and its dimensionality.
我们研究了在热平衡状态下，一维和二维扩散受限反应A + A → 0以及A + B → 0，其中A为活性Janus粒子，B为惰性粒子。我们表明，通过增加A粒子的自推进时间，反应物密度衰减得更快，至少对于化学应用中潜在感兴趣的时间瞬态情况是如此，例如用于开发智能药物递送方案。渐近和瞬态密度衰减遵循幂律，其指数取决于实际的湮灭反应及其维度。
