Abstract
Wide range of applications of nanoparticles causes the need to study their properties, and the influence of the interparticle interaction on the formation of the nanosystem properties is a well-known experimental phenomenon. The aim of this work is to study the influence of interparticle interactions on the properties of nanosystems theoretically. The influence of the interparticle interaction was simulated based on the near-field interaction potential and local field distribution. The local field distribution in the system was calculated using the Green function method and the concept of the effective susceptibility. The results show that interaction between nanoparticles can be neglected if the distance between them is bigger than the critical one. Expressions for evaluation of the efficiency of the interparticle coupling were proposed and compared with the existing experimental results. The results of the simulation are in good agreement with the measured values of the critical interparticle distance. The approach may be useful for simulation of interactions in the system of many nanoparticles and for engineering of nanostructures for different applications.
Highlights
Nowadays, nanoparticles and their interactions with other objects are actively used in various applications, e.g., films epitaxy [1], gas sensors [2,3,4], high-temperature superconductors [5,6,7], and luminescent materials development [8, 9]
Applications of nanoparticles in biomedicine are especially relevant, e.g., drug delivery [10], cancer therapy [11], enhanced tomography [12], and antiviral and antimicrobial therapy [13, 14]. e nanoparticles are usually in colloidal solutions; the task of making solutions of nanoparticles with their high concentration is of particular interest [15]
High concentrations of nanoparticles on the plasmon surfaces cause a shift of the plasmon resonance peak [16]. is is due to the screening effect of one nanoparticle on others at a sufficiently close distance between them
Summary
Nanoparticles and their interactions with other objects are actively used in various applications, e.g., films epitaxy [1], gas sensors [2,3,4], high-temperature superconductors [5,6,7], and luminescent materials development [8, 9]. E nanoparticles are usually in colloidal solutions; the task of making solutions of nanoparticles with their high concentration is of particular interest [15]. In such solutions, there are interactions between nanoparticles that affect the properties of the entire system. Basing on the assumption [30] about the physical mechanism of the antiviral action of nanoparticles, it can be assumed that, at high nanoparticles concentration, the compensation of their action due to interparticle interactions may occur. All of the mentioned above assumptions indicate the need to consider the interparticle interactions while designing the nanostructures It may be conducted by evaluating the efficiency of the interparticle interactions. In the work, we answer the following questions: is the action of one nanoparticle on another one significant just for rather small distance between them, and if so, how can this distance be evaluated?
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
