Chemical Physics Letters 730
, 84-88 (2019)
ISSN: 0009-2614, SCI
The pH-dependent electrostatic interaction of a metal nanoparticle with the MS2 virus-like particles
Anh D. Phan, Trinh X. Hoang
The electrostatic interaction of metal nanoparticles with viruses is attracting great interest due to their antiviral activity and their role in enhancing the detection of viruses at ultra-low concentrations. We model the MS2 virus devoid of its single strand RNA core using a core-shell model. The dependence of the inner and outer surface charge density on the pH is taken into account in our model of the interaction. Varying the pH causes a change in the sign of the outer surface charge leading to the attractive-repulsive transition in the electrostatic interaction between the MS2 virus and metal nanoparticle at pH = 4.