» Articles » PMID: 37753720

Quantification of Particle Filtration Using a Quartz Crystal Microbalance Embedded in a Microfluidic Channel

Overview
Journal Langmuir
Specialty Chemistry
Date 2023 Sep 27
PMID 37753720
Authors
Affiliations
Soon will be listed here.
Abstract

To quantify colloidal filtration, a quartz crystal microbalance (QCM) with a silicon dioxide surface is embedded on the inner surface of a microfluidic channel to monitor the real-time particle deposition. Potassium chloride solution with micrometer-size polystyrene particles simulating bacterial strains flows down the channel. In the presence of intrinsic Derjaguin-Landau-Verwey-Overbeek (DLVO) intersurface forces, particles are trapped by the quartz surfaces, and the increased mass shifts the QCM resonance frequency. The method provides an alternative way to measure filtration efficiency in an optically opaque channel and its dependence on the ionic concentration.

References
1.
Cejas C, Monti F, Truchet M, Burnouf J, Tabeling P . Particle Deposition Kinetics of Colloidal Suspensions in Microchannels at High Ionic Strength. Langmuir. 2017; 33(26):6471-6480. DOI: 10.1021/acs.langmuir.7b01394. View

2.
Tufenkji N, Elimelech M . Breakdown of colloid filtration theory: role of the secondary energy minimum and surface charge heterogeneities. Langmuir. 2005; 21(3):841-52. DOI: 10.1021/la048102g. View

3.
Farooq M, Zou T, Valle-Delgado J, Sipponen M, Morits M, Osterberg M . Well-Defined Lignin Model Films from Colloidal Lignin Particles. Langmuir. 2020; 36(51):15592-15602. DOI: 10.1021/acs.langmuir.0c02970. View

4.
Pazmino E, Trauscht J, Dame B, Johnson W . Power law size-distributed heterogeneity explains colloid retention on soda lime glass in the presence of energy barriers. Langmuir. 2014; 30(19):5412-21. DOI: 10.1021/la501006p. View

5.
Plausinaitis D, Ratautaite V, Mikoliunaite L, Sinkevicius L, Ramanaviciene A, Ramanavicius A . Quartz crystal microbalance-based evaluation of the electrochemical formation of an aggregated polypyrrole particle-based layer. Langmuir. 2015; 31(10):3186-93. DOI: 10.1021/la504340u. View