Programme

P.90 -- Poster, VCTP-44

Date: Thursday, 1 August 2019

Time: 08:30 - 10:00

Interaction between two soft-particles with different sizes

Quyen T. L. Bui (1,2), Cam-Tu Mai (1), Hoai T. L. Nguyen (3)

(1) Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet road, Hanoi, Vietnam; (2)Thai Binh University of Medicine and Pharmacy, 373 Ly Bon, Thai Bình city, Vietnam ; (3) Institute of Physics, VAST, 10 Daotan, Badinh, Hanoi, Vietnam

We calculate the Coulomb-like interaction energy of a system including two viral-like particles (VLPs) immersed in a 1:1 salt suspension. Here, we use the core-shell model for VLPs in which each particle is assumed to consist of a rigid charged core covered by an ion-permeable and negatively charged shell. We consider a specific case where two particles are identical and the general case where two particles are of different sizes. We show that the interaction energy has the form of screened Coulomb energy multiplied with a structural coefficient. The results may give some insight to understand the adhesion process of microbial systems which is an important problem in water treatment studies.

Presenter: Nguyen Thi Lam Hoai