Improvement of photon correlation spectroscopy method for measuring nanoparticle size by using attenuated total reflectance

Abstract

Photon correlation spectroscopy is an effective method for measuring nanoparticle sizes and has several advantages over alternative methods. However, this method suffers from a disadvantage in that its measuring accuracy reduces in the presence of convective flows of fluid containing nanoparticles. In this paper, we propose a scheme based on attenuated total reflectance in order to reduce the influence of convection currents. The autocorrelation function for the light-scattering intensity was found for this case, and it was shown that this method afforded a significant decrease in the time required to measure the particle sizes and an increase in the measuring accuracy.

Impact of pulping routes of rice straw on cellulose nanoarchitectonics and their behavior toward Indigo dye

“…There are many techniques to estimate the particle size and particle size distribution for analyzing the dry powders and dispersed powder in suspension. These techniques are photon correlation spectroscopy (PCS), surface area analysis (BET), x-ray diffraction peak broadening analysis and transmission electron microscopy (TEM) (Krishtop et al 2012;Arvaniti et al 2015;Caputo et al 2021).…”

Dynamics of Switching Waves in a Nanofluid in a Light Field

“…For example, magnetic fluids are used to polish optical components, and suspensions of silica particles in liquid crystals significantly improve the characteristics of optical storage devices [1][2]. We also note their use in chemical processes (catalysis), in the creation of new drugs, lubricants and so on [3][4][5][6][7]. With the growth of the productivity of electronic devices and the development of high-energy technologies, it has become necessary to create efficient cooling systems and control large heat flows [8].…”

Electrostrictive Mechanism of Radiation Self-Action in Nanofluids

“…Nanoparticles are being increasingly adopted in new and different areas of science and technology [1][2][3][4]. Colloidal suspensions that contain nanoparticles, also known as nanofluids, have found a variety of important applications in modern technologies [5].…”